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Using a Digital Camera

With the GNOME Volume Manager, featured in most Linux systems with GNOME desktops, getting images from a digital camera can be as easy in Linux as it is in any desktop operating system. With most digital cameras that can be connected to a USB port on your computer, simply plugging the camera into a USB port (with the camera set to send and receive) causes the GNOME Volume Manager to Immediately ask you if you want to download images from your camera. Run the gThumb image viewer and browser program so you can look at, manipulate, and download the contents of your digital camera. Although GNOME Volume Manager opens your camera's contents in an image viewer, you can treat the storage area in your camera much as you would the storage area on a hard disk or a pen drive. I describe how to use your camera to store other data as well.

Using your camera as a storage device

As I noted with my example of an Olympus camera with a USB connector, the GNOME Volume Manager is capable of detecting that camera after it is connected, and mounting its contents as a storage device. With the contents of a digital camera mounted, you can use your camera as a USB mass storage device by Of course, with your camera mounted as a file system, you are not limited to using it only for digital images. You can use it to store any kind of files you like, essentially using the camera as a storage device. The following list is a partial summary of digital cameras that can be used as a USB storage device

Using Digital Cameras with Ubuntu

Most digital cameras used in connection with Ubuntu fall into one of two categories webcams (small, low-resolution cameras connected to the computer's interface) or handheld digital cameras that record image data on disks or memory cards for downloading and viewing on a PC. Ubuntu supports both types. Other types of cameras, such as surveillance cameras that connect directly to a network via wired or wireless connections, need no special support (other than a network connection and viewing software) to be used with a Linux computer. Ubuntu supports hundreds of different digital cameras, from early parallel-port (CPiA chipset-based) cameras to today's USB-based cameras. You can even use Intel's QX3 USB microscope with Ubuntu. If you prefer a standalone network-based webcam, explore the capabilities of Linux-based cameras from Axis (at http www.axis.com products video camera productguide.htm). The following sections describe some of the more commonly used still camera hardware and...

Handheld Digital Cameras

Digital cameras are one of the major success stories of the last few years. Now you can take pictures and see previews of your pictures immediately. The pictures themselves are stored on discs or memory cards that can be easily plugged into Ubuntu for further manipulation, using The GIMP or other software. Unfortunately, most of the supplied software that comes with the cameras tend to be for Windows users only, making you reliant on the packages supplied with Ubuntu. The good news, though, is that because of the good development carried out in Ubuntu and GNOME, you are now able to plug pretty much any camera into your computer through a USB interface and Ubuntu automatically recognizes the camera as a USB mass storage device. You can even set Ubuntu to recognize when a camera is plugged in so that it automatically imports your photographs for you. To do this, you need to set up your settings for removable drives and media. You can find this in the System, Preferences menu. Click the...

Using Digital Cameras MP3 Players and USB Memory Sticks

Removable storage is the term applied to peripherals that you might attach to your computer that contain their own storage. Examples include USB memory sticks, external hard drives, MP3 players, digital cameras, and photographic memory card readers. You might also find some devices like mobile phones are treated as removable storage devices when you attach them directly to your computer. If the removable storage device contains digital images (if it's a digital camera, for example), and you view the contents using a Nautilus window, an orange bar will appear across the top of the window, alongside a button asking if you want to import the images to the F-spot photo library program. You'll learn more about this in Chapter 20, which provides a concise guide to cataloging and manipulating your digital images. Caution Be very careful not to remove a memory card from a card reader while you're writing or reading from it on your PC. This will most likely damage the card irreparably. At the...

Transferring Photos from a Digital Camera

Digital cameras have been around for a while now and offer a genuine alternative to traditional film photography. They store pictures on computer memory cards rather than on film, meaning their images can quickly and easily be downloaded to a PC. You can transfer your pictures from your digital camera to your computer via a direct cable connection into your USB port or by using a card reader. The latter requires buying an extra piece of hardware into which you insert the memory card from the camera so you can download images from it. Note Very nearly all card readers are supported by SUSE Linux. If you find that your camera doesn't work via a direct cable connection, consider buying a card reader. Regardless of whether you're using a digital camera or a card reader, simply attach the device to your computer using the USB cable. In the case of a card reader that's already attached, insert the memory card.

KDE Using a Digital Camera or Card Reader

Under KDE, you can use Digikam, the default image catalog program, to import your images, or you can simply browse the memory card digital camera in a Konqueror window and copy the pictures manually. When the camera is attached, or a card inserted, you'll be presented with your choices, as shown in Figure 8-21. To use Digikam, select it from the list. To browse the contents of the camera or card in a Konqueror window, click Open in New Window. You could also select Browse with Gwenview, which just lets you view the images on the card, without importing them to your hard disk.

Tip Why not create a shortcut location to the digital camera or card reader Simply view it using Konqueror and then

If you're using a digital camera, you need to add your camera's hardware profile. Click Camera > Add Camera. In the Configure dialog box, click the Auto-Detect button. This should automatically add your camera to the list of known cameras, so click the OK button. 3. To import photographs, select your camera from the Camera menu.

Use older digital cameras with Ubuntu

To setup your camera, attach it to your computer and switch it to data transfer mode (if applicable). Then click File Import Photos in gThumb. Then click the icon above the words No Camera Detected. All being well your camera should be automatically detected and you can click oK. if not you can click Choose from the Catalog, and select the model from the list, as shown in Figure 3.17. The Port dropdown should then be filled in automatically, but you should inspect it to make sure. Clicking OK will then cause gThumb to probe the camera and import thumbnails, which you can then download. To make gThumb start automatically when you connect a USB camera, click System Preferences Removable Drives and Media. Then, in the Command text box under the Digital Camera heading, replace f-spot-import with gthumb --import-photos.

Using Digital Camera Tools

Digital photography is displacing traditional film photography for many applications. You can buy a digital camera for anywhere from around 50 to well over 1000, depending on your needs. You can then download images from the camera to your computer, manipulate them in a graphics editor, and print the results to a high-resolution color printer. Many drug stores and malls now feature digital photography kiosks for even higher-quality prints, too. Unfortunately, most digital cameras ship only with Windows and Mac OS software, so to take advantage of these devices from Linux you need to locate an appropriate package. Fortunately, the Linux gPhoto program (http gphoto.sourceforge.net) does an excellent job supporting a wide variety of cameras.

Picking a Digital Camera Package

There are several ways to extract digital photos from a camera. Many cameras use Compact Flash (CF) media, and Linux supports many CF media readers, treating them much like hard disks. Thus, you can move the CF card from a camera to a CF reader and use the reader to extract photos from the CF media. The cameras invariably use the FAT filesystem, so you should be able to mount the camera's media as if it were a FAT disk. A few cameras are supported by tools that are tailored to specific digital cameras or chipsets for instance, cameras built on a Fujitsu chipset are supported by code at http photopc.sourceforge.net. You may need to search for packages for your specific camera if you can't get it to work with one of the major digital camera programs. A few digital cameras are supported by the Scanner Access Now Easy (SANE) package, which was described in Chapter 3, Using External Peripherals. The main Linux digital camera package is gPhoto. There are actually two variants of gPhoto the...

Downloading digital photos with gtkam

The following procedure describes how to download images from your digital camera. 1. Using a cable provided with your digital camera, connect your camera to the USB or COM port on your computer. (I had better luck with the USB port.) 2. Set your camera to be in Send and Receive mode. 3. From the main Red Hat desktop menu, choose Graphics Digital Camera Tool. The gtkam window appears. 5. Click the down arrow next to the Model box, select your camera, and click Detect. 6. Click Apply, then OK. Your camera model should be listed in the gtkam window. 7. To begin downloading images from your digital camera, click the camera name that appears in the left column, and then select the folder containing the images from that camera. After the images download (which can take a while), thumbnails appear in the main gtkam window, as shown in Figure 8-8. Figure 8-8 Download images from digital cameras from the gtkam window. Figure 8-8 Download images from digital cameras from the gtkam window.

Figure 112 Use GNOMEs intelligent handling of removable media by setting it to import your photographs automatically

Now whenever you connect a digital camera to your computer GNOME will automatically detect it (see Figure 11.3), and ask whether you want to import the photographs. Figure 11.3. GNOME detects the presence of a digital camera and asks whether the photos should be imported. Figure 11.3. GNOME detects the presence of a digital camera and asks whether the photos should be imported.

Working with Your Digital Camera

The next two sections discuss the primary applications that Ubuntu and Kubuntu provide for working with your digital camera, namely F-Spot and DigiKam. These applications were introduced in the Photo Editing Overview section of Chapter 18 (which also lists some alternate digital camera-related applications that are available for Ubuntu and Kubuntu), but the following sections focus on F-Spot and DigiKam in detail.

Working with Digital Cameras on Ubuntu Systems

Prior to Ubuntu Hardy (8.04), Ubuntu systems used a shell script named gnome-volume-manager-gthumb to use the gthumb image viewer to import, organize, and display your photographs. In Ubuntu Hardy and later, this application and the associated script are still available, but the default application for importing, organizing, and displaying digital photographs is now F-Spot, an excellent application that is unfortunately written using the proprietary and odious .NET framework that is supported on Linux thanks to the MONO project (which is apparently not named after the disease, as I have always thought). If you want information about using gthumb, look for a PDF copy of the first edition of this book on thepiratebay.org this section focuses on using F-Spot. Political and nerd considerations aside, it's really a great application. If you're upgrading an older Ubuntu system or have simply stored your existing digital photos in another directory, you can import them into F-spot by using...

Project 14A Digital Cameras

While scanner support for Linux is still a bit spotty, support for digital cameras is significantly better. Linux supports over 800 cameras through the gPhoto2 digital camera software package, which comes bundled with your system. What gPhoto2 essentially consists of is a collection of drivers that works in the background to tell your computer how to communicate with your camera. To see if your camera is supported, go to the gPhoto2 website (www.gphoto.org), scroll down, and click 800 cameras (the number may actually be higher when you check). On that page you will find a complete list of all the cameras supported by gPhoto2. If your camera isn't on the list, it most likely means (as the page points out) that your camera is so old that there is little demand for support for it or that it is so new that there hasn't been enough time to develop support for it. Of course, gPhoto2 is constantly being updated, so if your camera isn't on the list now, it could be in the near future....

Enhancing Your Pictures

Now that you've organized your pictures so that you can easily find the ones you're looking for, you can enhance them. That means you can remove small irregularities from the photos and apply other kinds of corrections. To do so, start by double-clicking the picture you want to optimize. This opens the window shown in Figure 6-16. At left in the Edit Image window, you can see all the different editing options. However, you can't clearly see which options are available, because the Histogram and Image Information windows are open as well. It's a good idea to close these to do so, click the downward-pointing triangle to the left of the window name. Next, remove the brown search bar above your picture, by clicking the X at the right end of the bar (or clicking the refresh icon). To bring it back later, press Ctrl+F. If you still can't see enough, you can remove other screen elements as well. To do so, look at the options on the View menu. For instance, by removing the toolbar, you gain a...

A1 Connecting Your Camera and Starting the Import Process

If your camera is supported by gPhoto2 and you prefer to access your photos directly from your camera rather than fiddle with flash storage cards (or if you're just not sure whether your camera is supported or not), connect the USB cord supplied with your camera to the camera itself and then to one of the USB ports on your computer. Once you've done that, turn the camera on, and set it to communicate with your computer. Switching the camera to Play mode, rather than Camera mode, usually seems to do the trick, but you should check your owner's manual just to be sure. If your camera is supported by gPhoto2, and the chances of that are quite good, a small window will appear, as shown in Figure 14-1. To view the images on your camera, click the Import Photos button. Figure 14-1 Your system seeks your approval before importing photos from your digital camera.

Importing Photographs from a Digital Camera

To import photographs into F-Spot from a digital camera 3. Click the camera as the source for the photographs. The Select Photos to Copy From Camera dialogue box opens, which lists all the photos in the camera. Select the photos you want to import and click Copy. Figure 8.22 Selecting Images to Copy 4. F-Spot copies the photographs to the specified location and displays the copied photographs in the right pane of the F-Spot window. Figure 8.22 Selecting Images to Copy 4. F-Spot copies the photographs to the specified location and displays the copied photographs in the right pane of the F-Spot window.

Installing a Web Application Coppermine Photo Gallery

Once your LAMP server is operational, you can begin installing or creating applications to run on it. One such application is Coppermine Photo Gallery (CPG), the installation of which is demonstrated in this section. CPG is a Web-based photo gallery management system written in PHP Through its Web interface, you can upload pictures to your own photo galleries, which will be available on the Web through your LAMP server.

Using a Digital Camera with gtkam and gphoto2

With the gtkam window, you can download and work with images from digital cameras. The gtkam window is front end to gPhoto2, which provides support for dozens of digital cameras in Linux. The gtkam window works by attaching a supported digital camera to a serial or USB port on your computer. You can view thumbnails of the digital images from the camera, view full-size images, and download the ones you select from the camera to your hard disk. Check the gPhoto2 Web site for information on supported cameras as well as other topics related to gPhoto. Here is a list of currently supported digital cameras.

Accessing a Digital Camera

Most digital cameras can connect to the Universal Serial Bus (USB) port. If you have such a camera, you can access its storage media (compact flash card, for example) as a USB mass storage device, provided your camera supports USB Mass Storage. To access the images on your USB digital camera, use the following steps 2. Connect your digital camera to the USB port by using the cable that came with the camera, and then turn on the camera. This causes the Linux hotplug system to detect the camera and mount it the media usbdisk directory on the Linux file system.

Using a Digital Camera with gPhoto

With the gPhoto window, you can download images from digital cameras. gPhoto works by attaching one of the supported digital cameras to a serial port on your computer. You can view an index of thumbnails of the digital images from the camera, view full-size digital images, and download the ones you select from the camera to your Linux system. Check the gPhoto Web site (http www.gphoto.org ) for information on supported cameras as well as other topics related to gPhoto. Here is a list of digital cameras that are currently supported. To start gPhoto from the Gnome desktop menu, choose Programs Applications gPhoto. A pop-up window asks you to identify the type of camera you are using and the port that it is connected to. At this point you should have your camera attached to a serial port (such as COM1 or COM2) on your computer. After identifying your camera and port, click Save. The main gPhoto window appears, as shown in Figure 8-8. igure 8-8 Download images from digital cameras from...

Connecting Your Camera

Most modern cameras use memory cards to store the pictures. If you have such a model, when you plug the camera into your PC's USB port, you should find that Ubuntu instantly recognizes it. An icon should appear on the desktop, and double-clicking it should display the memory card's contents in a Nautilus window. Along the top of the window, you'll see an orange bar saying This media contains digital photos alongside a button marked Open F-Spot Photo Manager. Clicking this button will start F-Spot, with which you can copy the images to your hard disk, as explained in the next section. Of course, you can simply copy the pictures to your hard disk manually using Nautilus. If your camera doesn't appear to be recognized by Ubuntu, you should consider buying a USB card reader. These devices are typically inexpensive and usually can read a wide variety of card types, making them a useful investment for the future. Some new PCs even come with card readers built in. Most generic card readers...

GPhoto the Digital Camera Tool

GPhoto, the GNOME digital camera tool, lets you copy pictures from a digital camera onto your hard drive, organize them, and turn them into prebuilt web page galleries. Some systems may identify your camera automatically, and you will be able to use dev camera for your port name. Some may even have mnt camera set up as a standard directory, and you will be able to point gPhoto there as though it were a directory (do this by selecting File, Open, and then Directory). Otherwise, you're in for just a little bit of tinkering. If you're using a serial cable (the kind of cable with visible pins on the end), you have probably plugged your camera into dev ttyS0 or dev ttySl. If you have a USB cable, you have probably plugged the camera into dev usb. For FireWire (also known as iLink or IEEE-1394), it may be dev sga0 or dev sga1. Once you have the setup complete, you're ready to go. To download a thumbnail index of all the images on your camera, press Ctrl+I or Camera, Download Index, and then...

Organizing Your Pictures

The goal of F-Spot is threefold you use it to organize, optimize, and display images. To do your work efficiently, it's important that you select the right perspective first. You can do that using the button bar at the top of the window. Click the Browse button for a thumbnail overview of all your pictures. If you want to edit a specific picture, you can use the Edit Image button to open it in an editor. Figure 6-9. In the Edit Image perspective, you have direct access to options to optimize your pictures. Before you begin to optimize your pictures, it's a good idea to organize them. Among the first actions you may want to perform is tagging the pictures. Five tags are available by default Favorites, Hidden, People, Places, and Events. You can drag a tag to a photo or to a selection of photos (use Ctrl-click to make your selection). After you've properly marked all your pictures with tags, it's not hard to find all those in the same category. To do so, select Find > Find Selected...

Working with Digital Cameras on Kubuntu Systems

DigiKam is the most popular application for working with digital photographs on a Kubuntu system, though other applications are available, most notably KPhotoAlbum (http kphotoalbum.org). DigiKam makes it easy to import photos from a digital camera or other storage device, and provides a number of convenient plug-ins for common photo editing and touchup tasks. Open with DigiKam is one of the default options on a KDE 3-based system when you attach a standard digital camera to a USB port on your system. (You can also add this option to a KDE 4-based system by following the instructions in the section entitled Customizing Device Recognition of a KDE 4 System. earlier in this chapter.) You can manually start DigiKam by selecting the K Menu O Graphics O DigiKam - photo management menu command on a KDE 3-based Kubuntu system, or by selecting the K menu O Applications O Graphics O Photo Management - DigiKam menu command on a KDE 4-based Kubuntu system. If you started DigiKam manually, you...

GNOME Using a Digital Camera or Card Reader

F-Spot's photo import wizard starts as soon as you attach the camera or insert a memory card into a card reader. If you click the Import Photos button in the dialog box, it will open a second dialog box by which you can actually import the pictures into F-Spot, as shown in Figure 8-20. Simply click the Import button to import all the photographs. To preview the photographs, click the thumbnails on the left side of the Import dialog box. Note that if you import pictures from a camera, you'll see a slightly different dialog box, without a preview window. Note The second Import dialog box seemed to have a bug when I used it. I had to select my memory card in the Import Source drop-down list before the pictures were actually detected by the F-Spot wizard. I also found that importing pictures from a digital camera was much slower than importing pictures from a card reader. Often, I had to wait a couple of minutes while nothing seemed to be happening. Figure 8-20. F-Spot manages digital...

Linux and Your Digital Camera

A digital camera combined with your personal computer is a powerful tool to create, store, edit, print, and share images. You can take your pictures, store them initially on the camera's disk or memory card, and then transfer them to your PC with the camera's USB cable. View or edit the file with your favorite image editor, then email photos to friends and family, post them on your photo blog, or preserve the images on a recordable CD. No fuss, no muss, no film. Unfortunately, some of the pleasure and convenience associated with digital cameras are lost when running Linux. Most, if not all, of the software bundled with your camera runs only on Windows. Do not despair, however. SUSE Linux offers many tools to organize and share your photos, and because the digital imaging industry is organized around very common standards, Linux can handle most any task involving your camera. To begin with, you should have no trouble connecting your camera to your Linux system. Just connect the camera...

Digital Cameras

There are programs to handle many hand-held digital cameras which will run Linux. Cameras that support compact flash or floppy disk storage of standard JPEG images should also work using those media to transfer the image data. A new application called gPhoto (http gphoto.fix.no gphoto ) supports about ten different brands of digital cameras. Some digital cameras may also be supported under the SANE library.

Digital Photos

The PC has become an increasingly useful tool in the field of photography. In fact, these days it's hard to find a professional photographer who doesn't use a computer in some way, either to download digital camera images or to scan in images taken using traditional film-based cameras.

Removable Drives and Media

In an increasingly connected world, you will find yourself plugging all sorts of devices and widgets into your computer. For the most part, it is usually multimedia files that you want to launch in a specific way. Ubuntu provides a great tool to configure the consequences of everything from plugging a digital camera into your computer, inserting a film DVD, and even plugging in a graphics tablet. For example, in Figure 2.11, you can see the options for handling digital images in Ubuntu. Rather than using gthumb to import pictures from a digital camera, I want Ubuntu to use F-Spot, a cool photo management and editing application available through synaptic. In this case, I need to enter the f-spot command in the Command field and make sure to check mark the Import Digital Photos When Connected option. Now when I connect my digital camera after a hard day's snapping, GNOME will detect its presence and launch F-Spot, ready for it to import my pictures directly into its library.

Configuring a Gnome Online Desktop

The centerpiece of the GNOME Online Desktop project is the sidebar referred to as BigBoard (http live.gnome.org BigBoard). From BigBoard, you consolidate icons and menus to connect to your online photo services (such as Flickr), retail accounts (such as Amazon), movie rentals (such as Netflix), and others. It also keeps track of the files and applications you use locally. To get started with Online Desktop, install the online-desktop package. Then return to the login screen and select Session C> Online Desktop from the login screen and log in. Create a user account at GNOME.org and Mugshot.org. Then configure your Mugshot account to connect to your accounts at popular sites such as Amazon.com, Flickr.com, Netflix.com, and others. Welcome to Flickr - , v rS http www.flickr flickr

Universal Serial Bus Devices

The Universal Serial Bus (USB) specification was designed to allow PCs to support more peripheral devices without adding serial or parallel connections to an already overburdened pile of cables. It also allows devices that don't need a permanent connection to the PC (such as digital cameras and audio players) to plug in and Among the types of devices you'll see that plug into a USB port are keyboards, mice, modems, scanners, printers, digital cameras, webcams, and network cards (both wired and wireless).

Using Removable Devices and Media

Removable media such as CDs and DVDs, USB storage disks, digital cameras, and floppy disks will be displayed as icons on your desktop. These icons will not appear until you place the media into their appropriate devices. To open a disk, double-click its icon to display a file manager window and the files on it. Ubuntu now supports removable devices and media such as digital cameras, PDAs, card readers, and even USB printers. These devices are handled automatically with an appropriate device interface set up on the fly when needed. Such hotplugged devices are identified, and where appropriate, their icons will appear in the file manager window. For example, when you connect a USB drive to your system, it will be detected and displayed as a storage device with its own file system.

Accessing File Systems Devices and Remote Hosts

Removable media such as CD and DVD discs, USB storage disks, digital cameras, and floppy disks will be displayed as icons on your desktop. These icons will not appear until you place the disks into their devices. To open a disk, double-click it to display a file manager window and the files on it.

Setting Up an Online Desktop

From Big Board, you consolidate icons and menus to connect to your online photo services (like Flickr), retail accounts (such as Amazon), movie rentals (such as Netflix), and others. It also, however, keeps track of the files and applications you use locally. Flickr Visit your online digital image collection at Flickr.com. Tiny Icons The tiny icons below the User Information represent the online services you have configured for your Mugshot account. Beginning with the top-left icon in this example, the icons represent Digg, Picasa, Amazon, Netflix, Del.icio.us, my home URL, Reddit, Twitter, and Flickr.

Working with Graphics

Tools for creating and manipulating graphics are becoming both more plentiful and more powerful in Linux systems as a whole. Leading the list is the GNU Image Manipulation Program (GIMP). GIMP enables you to compose and author images as well as retouch photographs. To work with vector graphics (where geometric shapes represent images, instead of just dots), Inkscape is a popular open source application. Other tools for creating graphics include ksnap-shot (a program for taking screen captures) and kpaint (for working with bitmap images).

Manipulating images with The GIMP

The GIMP is a free software program for manipulating photographs and graphical images. To create images with GIMP, you can either import a drawing, photograph, or 3D image, or you can create one from scratch. You can start GIMP from the system menu by selecting Graphics C GIMP Image Editor or by typing gimp& from a Terminal window.

Accessing Devices Remotely

To access devices such as sound cards, digital cameras, or DVD video receivers as a remote user, you will need to modify the PolicyKit permissions. Choose System Administration Authorizations to open the PolicyKit client with a sidebar showing an expandable tree. Near the end of the tree is a section for devices that will have the heading hal. You'll also see subsections for storage devices and device-access. Under device-access, you will find entries for many media devices such as video capture, DVB, digital cameras, sound, and DVD drive (optical disk). The right pane will list Implicit Authorizations and Explicit Authorizations segments for allowing access (see Figure 4-16). DirecLly access PDA devices < 3f Directly access Rrewlre I IDC devices Directly acccss Firewlrc AVC dcviccs 0 Directly access DVB devices Directly access opflcai drives Directly access digital cameras ty Directly access audio players

Manipulating Images with GIMP

GIMP is a free software program for manipulating photographs and graphical images. To create images with GIMP, you can either import a drawing, photograph, or 3D image, or you can create one from scratch. You can start GIMP from the system menu by selecting Graphics O The GIMP or by typing gimp& from a Terminal window.

Getting a Scanner to Work

Think of a typical office computer and you're likely to imagine a system that runs certain types of programs, such as word processors and spreadsheets. A prototypical desktop office system has a monitor, a keyboard, and a mouse for human interaction, and it is connected to a printer for output. One component is missing from this stereotypical office desktop computer, though a scanner. Not every computer has or needs a scanner however, for many applications, scanners are indispensable. With a scanner, you can load printed photographs into files you can manipulate with graphics programs, convert textual documents into word processing files, and even (with the help of a printer and a modem) turn a computer into a photocopier and fax machine.

Cataloging the Image and Graphics Applications

When I talk about images and graphics, I mean applications that are meant to work with photographs or other images and those that enable you to prepare vector drawings drawings consisting of lines and shapes for use in various types of documents. SUSE Linux includes a number of such image and graphics applications. You can find these applications in the Main MenuO Graphics menu. Digital camera interface Digital camera interface Digital camera interface is for connecting a digital camera to the SUSE Linux system and downloading the photos from the camera. If the digital camera application does not support your digital camera, you can usually access it as a USB storage device after you connect the camera to the PC's USB port using the cable supplied with the camera.

Multimedia Applications

The twenty-first century has become the century of the digital lifestyle, with millions of computer users around the world embracing new technologies, such as digital cameras, MP3 players, and other assorted multimedia gadgets. Whereas 10 years ago you might have had a collection of WAV files littering your Windows installation, nowadays you are more likely to have hundreds, if not thousands of MP3 files scattered across various computers. Along with video clips, animations, and other graphics, the demand for organizing and maintaining these vast libraries is driving development of applications. Popular proprietary applications such as iTunes and Google's Picasa are coveted by Linux users, but open source applications are starting to appear that provide real alternatives, and for some the final reasons they need to move to Linux full time. . Using Digital Cameras with Ubuntu

Graphics Manipulation

Over a very short space of time, digital cameras and digital imagery have become extremely popular, to the point where some traditional film camera manufacturers are switching solely to digital. This meteoric rise has led to an increase in the number of applications that can handle digital imagery. Linux, thanks to its rapid pace of development, is now highly regarded as a multimedia platform of choice for editing digital images.

Creating an Image Gallery with Konqueror

Konqueror generates the thumbnails and adds them to the thumbs directory. The image gallery page itself opens and is saved to the images.html file. (Select the Folders button to save the gallery under a different name. You can also have Konqueror create galleries in recursive subfolders to a depth you choose.) You can now copy the entire contents of this directory to a Web server and publish your pictures on the Internet. Here's an example of a Konqueror image gallery.

Burning CDs and DVDs in Ubuntu

Linux is distributed across the Internet through the use of ISOs that are waiting to be written to CDs or DVDs. Therefore, learning how to burn discs is essential if you have to download and install a Linux distribution. Not only that, but you are likely to want to use CDs and, more commonly, DVDs to back up your music, family pictures, or other important files. With DVD writers being so cheap, the format is now pervasive, and more and more people use cheap DVDs as way of archiving simply due to the larger storage size available. Of course, you can use blank CD media, but they don't have anywhere near the capacity offered by DVDs albeit being slightly cheaper. Today's high-resolution digital cameras can occupy upward of 3MB per shot, and music files can be anything from 1MB to 10MB+ in size. These file sizes make DVD the obvious choice, but there are still occasions when you need to write to a CD. You can use CDs and DVDs to

Plug and Play and the Hardware Abstraction Layer

Conceptually different from the Microsoft version, HAL provides a constantly updated list of detected components. Ubuntu Linux can even automatically detect and mount the smart cards associated with digital cameras and fingerprint readers.

Exploring Fedora Core Applications

Fedora Core comes with a whole lot of applications. All you have to do is look at the menus in GNOME or KDE and you'll see what I mean. Often, there is more than one application of each type. Both GNOME and KDE come with the OpenOffice.org office application suite with a word processor, spreadsheet, presentation software, and more. You find many choices for CD players and multimedia players, not to mention the games, utility programs, and useful tools, such as a scanner and digital camera applications.

Transferring Files Between Bluetooth Devices

If you own a Bluetooth-equipped camera phone, you might be used to transferring pictures to your computer using Bluetooth. It's by far the easiest way of getting pictures off the phone and avoids the need for USB cables or card readers. To transfer files via Bluetooth, you can use the Bluetooth applet.

Mounting Devices from the Desktop

To access a USB drive, connect the USB drive to any USB port. The drive will be automatically detected and a file manager window will open showing the contents of the drive. You can read, copy, move, and delete files on the USB drive. A USB drive icon will appear on the desktop. Moving the cursor over the icon displays detailed information about the drive, such as where it is mounted and how much memory is used. Right-clicking and choosing Properties will display tabs for General, Permissions, Meta Info (space used), and Mounting information. The USB drive menu also has an entry for transferring an image file to the digiKam tool (Download Photos With digiKam). To remove a USB drive, right-click the USB icon and choose Safely Remove. The USB drive icon will disappear from the desktop, and you can then remove the drive.

Note Mounting is the process of magically making the contents of an external storage device available within a

Important As with memory card readers and certain digital cameras, when you're finished with the memory stick, you shouldn't simply unplug it. Instead, you need to unmount it first. Make sure you've saved and closed any files on the memory stick. You might also need to close any Nautilus file browser windows that are browsing the stick. Then, under GNOME,

Backing Up Your Personal Data

Few things are as frustrating as the realization that you've somehow lost years of e-mail, all your Web settings, the great American novel, all of your tax returns for the last decade, your music collection, and the digital photographs and video for all of your vacations and special occasions. I hope that you're already doing backups, but if you're installing Ubuntu on a machine that is currently running Windows, this may be your last chance to preserve all of the personal data on your computer. I've never encountered a problem when setting up a computer to dual-boot Windows and Ubuntu, but there's always a first time. Back up your data before proceeding If you're converting a system that is currently running Windows to an Ubuntu system, your existing disk will be erased, so back up your data before proceeding

Displaying images in gThumb

The GNOME Volume Manager mounts the contents of your USB camera, treating the memory of your camera as it would any file storage device. When I tried it with an Olympus digital camera, my images were available from the media usbdisk dcim 10 0olymp directory. Figure 8-16 shows an example of the gthumb-import window displaying the images from a digital camera. Figure 8-16 Download images from digital cameras with the gThumb image viewer. Figure 8-16 Download images from digital cameras with the gThumb image viewer. With your camera connected and the gThumb window open, here are some things you can do with the images on your camera Download images Click a single image or select Edit Select All to highlight all images from your digital camera. Then select File Import Photos. From the Import Photos window you can select the destination where you want the images to be NOTE If you have a camera that saves images to a floppy disk, just insert that disk into your disk drive and the contents of...

Hard Drive Considerations

The type of data you're storing will determine the type of backup plan you need. When this is personal data, such as letters or photographs, then consider a NAS featuring built-in RAID functionality. These often autoconfigure themselves when a second drive is plugged in, so be warned if you insert a used drive thinking you'll gain extra space Several types of RAID configuration are available, but the most common in this case is RAID-1, which uses a second drive to make identical copies of anything written to the first. It does this automatically and transparently from the user, so should either drive fail, the other can be used to recover the data. You should always remember, however, that RAID isn't a backup It just makes it a bit less likely that you'll lose data to disk failure. It won't protect against corruption from controller failures, fire, flood, or theft.

Manipulating photos and images

The GIMP program is a free software program that comes with Red Hat Linux for manipulating photographs and graphical images. To create images with GIMP, you can either import a drawing, photograph, or 3D-image, or you can create one from scratch. You can start GIMP from the system menu by clicking on Graphics The GIMP or by typing gimp& from a Terminal window.

Photo Management Tools FSpot and digiKam

Features include a simple and easy-to-use interface. A timeline feature lets you see photos as they were taken. You can also display photos in full-screen mode or as slide shows. F-Spot includes a photo editor that provides basic adjustments and changes like rotation, red eye correction, and standard color settings including temperature and saturation. You can tag photos placing them in groups, making them easier to access. With a tag you can label a collection of photos. Then use the tag to instantly access them. The tag itself can be a user-selected icon, including one that the user can create with the included Tag icon editor. F-Spot provides several ways to upload photos to a Web site using a Flickr account (www.flickr.com) digiKam is a KDE photo manager with many of the same features (www.digiKam.org). A side panel allows easy access by album, date, tags, or previous searches. digiKam also provides image editing capabilities, with numerous effects. digiKam configuration (Settings...

Window System Graphic Programs

X Window System-based applications run directly on the underlying X Window System, which supports the more complex desktops like GNOME and KDE. These applications tend to be simpler, lacking the desktop functionality found in GNOME or KDE applications. Xpaint is a paint program, much like MacPaint. You can load graphics or photographs, and then create shapes, add text, and add colors. You can use brush tools with various sizes and colors. Xfig is a drawing program, and Xmorph enables you to morph images, changing their shapes. ImageMagick lets you convert images from one format to another you can, for instance, change a TIFF image to a JPEG image. Table 12-2 lists some popular graphics tools for Linux. GNOME digital camera application and image library manager (f-spot.org) KDE digital camera application and image library manager (www.digikam.org)

Choosing Wallpaper Style

Fill Screen This option forces the picture to fit the screen, including squashing or expanding it if necessary (known as altering its aspect ratio). If the wallpaper isn't in the same ratio as the screen, it will look distorted. Most digital camera shots should be okay, because they use the same 4 3 ratio as most monitors (although if you have a widescreen monitor, a digital camera picture will be stretched horizontally).

NAS with Media Playback

One of the big selling points of these devices is that they can be moved from room to room, and even from house to house, without requiring a network. This makes it much easier to show your photographs and home videos to the ungeeked members of your family and friends because you can simply plug a media-enabled NAS device into any TV, and it will work. It is also a way of introducing (a small level) of control over what the kids are able to watch, because they'll be limited to the contents of the hardware.

Changing the Wallpaper

Fill Screen This option forces the picture to fit the screen, including squashing or expanding it if necessary (known as altering its aspect ratio). If the wallpaper isn't in the same ratio as the screen, it will look distorted, as shown in Figure 10-3. Most digital camera shots should be okay, because they use the same 4 3 ratio as most monitors (although if you have a widescreen monitor, a digital camera picture will be stretched horizontally).

Changing Your Login Picture

Users can choose their own login pictures by clicking System > Preferences > About Me. The About Me dialog box is designed for users to enter their personal details, such as their addresses, but they can also simply use it to choose photographs of themselves, or to simply add pictorial icons. To do this, click the empty square alongside your name at the top of the dialog box. You'll be shown a file list of default icons, or you can navigate to your own. Ideally, the image you choose should be square and 96x96 pixels, although if the picture is too large, it will be automatically scaled down. Click OK when you've finished.

Removable media on a Suse Kde desktop

When you insert a removable medium (CD or DVD) or plug in a removable device (digital camera or USB flash drive) from a KDE desktop in SUSE, a window opens to let you choose the type of action to take on it. If you want to add a different action, or change an existing action, click the Configure button.

Managing File Systems and Disk Space

File systems are organized differently in Linux than they are in Microsoft Windows operating systems. Instead of drive letters (for example, A , B , C ) for each local disk, network file system, CD-ROM, or other type of storage medium, everything fits neatly into the directory structure. For hard drive partitions, it is up to an administrator to create a mount point in the file system and then connect the disk to that point in the file system. For removable media (such as CD, DVD, USB flash drives, or digital cameras), mount points are automatically created and connected (in the media directory) when those items are connected or loaded.

Backing Up Your Windows Data

Several free and commercial packages make it easy to repartition an existing disk drive. In 99 times out of 100, repartitioning an existing disk drive is completely safe and will not damage or lose any of the existing programs or data on your Windows partition. However, preventing the pain associated with that one remaining time is worth the effort that it takes to back up your important data before making any changes to your disk partitions. If you're tempted to skip this step and just go ahead with repartitioning, stop and think for a moment what it would be like if you lost your computer system or it was destroyed. None of the saved e-mail that you've exchanged with friends and family, none of those letters you've written, none of your digital photographs, none of your music collection, the great American novel all gone. Are you really willing to take that chance If so, you're braver than I am.

Photo Editing The GIMP

While many of the other programs introduced so far mirror the Windows look and feel in some way, The GIMP walks a different path. It has its own unique way of working, which takes a little getting used to. But it's very much worth the effort, because The GIMP offers photo-editing tools on par with professional products like Adobe Photoshop. It's certainly more than powerful enough for tweaking digital camera snapshots.

Managing Drives and Partitions

Now that we have seen several aspects of the file system from an end user's perspective, we will look at some of the administrative aspects of the file system such as the different drives on a system and its partitions. Apart from the hard disks on a system, there is almost always a floppy disk drive and a CD-ROM drive, both of which are treated as file system drives. In addition, certain other peripheral devices such as digital cameras or removable storage devices may present the storage available on them as file system drives. A drive may be mounted - that is, made available for use by the file system. The drive may also be unmounted, making it unavailable for the file system to use.

File and Folder Icons

You can change the icon for any file or folder to whatever you want. Right-click the file or folder, click Properties, and then click the Select Custom Icon option. You can choose from a wide range of supplied icons or click the Browse button and locate your own graphic. Virtually any image can be used, regardless of format or even size, so you can use digital camera snapshots if you wish.

Make Windows permanently available

Choose a picture and then load it into the GIMP (right-click and select Open With Open with GIMP Image Editor) you might like to know that the default Ubuntu desktop wallpapers are stored in usr share backgrounds. You should select a picture that's roughly in 4 3 ratio, such as a digital camera snap. Don't select very tall or broad images they won't work.

Dodge and Burn and Smudge Tools

These tools are new additions to The GIMP that allow you to create further effects with your images. The dodge and burn tool is for adjusting the brightness or shade, and is especially useful for working with over- or under-exposed photographs. Switch between dodging and burning with the Options menu.

Configuring Your System for Consumer Electronics Devices

The section of Chapter 19 on Setting CD and DVD Preferences explained how to configure your system's behavior when a blank, audio, or data CD or DVD is inserted. CDs and DVDs may be the type of removable media that you'll use most frequently with your computer system, but consumer electronics (CE) devices are probably a close second. The following sections discuss how to configure how your system handles digital cameras, PDAs, digital audio players, and so on. (How your system interacts with removable media such as flash drives (USB sticks) and external drives is discussed in detail in Chapter 24, Adding Hardware and Attaching Peripherals.) The next two sections focus on what your system does when you attach various types of consumer electronics devices to your Ubuntu or Kubuntu system, and how you can configure your system's behavior.

Digital Device Recognition on Ubuntu Systems

Digital devices such as music players, digital cameras, mobile Internet devices, and smart phones are a key element of today's culture. Though these devices are designed to work in isolation, they almost always require some sort of connection to a desktop or laptop to synchronize, update, or archive content. Each type of device has its own connection requirements. For digital music players, such as iPods and MP3 players, connecting to a laptop or desktop system enables you to synchronize libraries and playlists or simply to add new music. For digital cameras, you are usually downloading and archiving photos to free up space on the device. For smart phones and PDAs, you're usually synchronizing address books and archiving notes and other content.

Digital Device Recognition on Kubuntu Systems

As you might expect, different versions of Kubuntu behave differently when consumer electronics devices are attached, because they are based on different versions of KDE, with different default behaviors and customization opportunities. The next two sections discuss how KDE 3-based Kubuntu systems (Kubuntu 8.04 and earlier) and KDE 4-based systems (Kubuntu 8.10 and later) behave by default when digital device such as music players and digital cameras are attached, and the extent to which you can customize that behavior. KDE 3-based systems such as Kubuntu 8.04.

Default Actions on KDE 4based Systems

KDE 4 takes a simple and straightforward approach when digital devices are attached to your system, popping up a dialog that identifies the type of the device and provides a best guess of the type of content that it contains. Figure 21-8 shows two examples of this pop-up dialog, the one on the left for a digital music device, and the one on the right for a digital camera. As you can see from the image on the right, moving the mouse over the entry for a device displays an Open in Dolphin message to mount that device and open it in the Dolphin file manager, simply left-click on the name of the device.

Customizing Digital Device Recognition on KDE 3based Systems

The dialog at the left in Figure 21-7 shows the default menu that displays when you attach a digital audio player to a Kubuntu 8.04 or earlier system, while the dialog at the right in Figure 21-7 shows the default menu that displays when you attach a digital camera to a Kubuntu 8.04 or earlier system. These dialogs differ only in the icon that they contain otherwise, they're the same, which is somewhat disappointing, since they seem to think that all the world's a camera, and therefore don't provide an option for automatically starting Amarok to interact with a digital audio player. Luckily, the KDE 3 desktop environment used on Kubuntu 8.04 and earlier systems makes it easy to add new options to the dialogs that it displays when new devices are attached.

Note The root user cannot by default connect through ssh Although it is possible to override this it is not recommended

Some people prefer to protect their private data in public, by using services such as Flickr, Google Docs, and YouTube. The situation is the same as earlier with the exception that, being free services, there are fewer warranties about loss of data. Indeed, Google Mail has a personal storage limit of just over 7GB, which allows you to back up your data by saving them as attachments in your mail account Or by using gmailfs.

Linuxpowered Amateur Rocket Goes

In summer 2005, I stood on a sandy hill a couple miles east of Bend, Oregon. Through my binoculars, I could see people scattered in a distant ring around our 12-foot amateur rocket, waiting to take pictures when it launched. A mile away, I could see the tents and cars at ground control.

Photo Management with Picasa

The holiday season ended about a month ago as I write this, and I brought home hundreds of digital photos of family and friends. Most of these photos were taken indoors, so some of them have all kinds of lighting problems (I refuse to acknowledge that for many of them I forgot to turn on the flash). I also have a really cute photo of my nieces and nephews playing together, but unfortunately all of them have glowing red eyes, seriously reducing the cuteness factor. My camera has a red-eye reduction setting, but it's a pain to turn on and off, and it really drains the battery.

Necessary Kernel Drivers

The kernel drivers that are required to use cameras and video input hardware are quite varied. As a general rule, you need both low-level drivers for your particular hardware or port and Video for Linux drivers. Sometimes the low-level drivers reside in the Video for Linux configuration area, however, and sometimes you don't need the Video for Linux drivers at all. You don't need these drivers to access a digital camera using gPhoto, for instance. video devices. This step isn't normally necessary if you're using a digital camera via the serial > A USB digital camera If you've got a USB digital camera, you should create a digital m Te camera device file. Consult the documentation for your digital camera driver for details

Capturing Still Images

One of the simplest imaging tasks is that of recording a still image. There are two classes of programs for doing this those that download images that have already been captured by portable digital cameras and those that capture an image from a WebCam or video capture card. Using gPhoto with a Digital Camera gPhoto (http www.gphoto.org) is the most advanced Linux tool for interfacing to a portable digital camera. This program, which is shown in Figure 13.7, is still in beta test in early 2000, but is nonetheless usable, even with USB-interfaced cameras. gPhoto can acquire thumbnail images from a digital camera, allowing you to select which images you want to download. gPhoto can acquire thumbnail images from a digital camera, allowing you to select which images you want to download.

Playing Music and Video

Because many devices holding multimedia content are removable (CDs, DVDs, digital cameras, Webcams, and so on), recent features in Linux to automatically handle removable hardware and media have greatly improved the Linux desktop experience. See the section on managing hardware in Chapter 4 for descriptions of how features such as Udev and HAL are used to manage removable media.

Importing Photos Using FSpot

F-Spot is styled after image-cataloging programs you might have used under Windows or Macintosh, such as iPhoto or Picasa. Once you run F-Spot (Applications > Graphics > F-Spot Photo Manager), or after you click the Open F-Spot Photo Manager button that appears along the top of a Nautilus file browser window when you insert a memory card or attach your digital camera, the F-Spot Import window will appear. (Depending on your configuration, the Import window may appear within a file browser.) The Import window contains a preview of the pictures stored in your camera, the option to tag the pictures, and the target directory where the photos will be copied. By default, all of the pictures are selected. You can deselect and select photos using the standard selection techniques (Ctrl-click or Shift-click). Embedded tags are very useful in filtering and searching for pictures, as discussed in the Tagging Images section a little later in the chapter. The default target directory where the...

Making Color Corrections

The first step when editing most images is to correct the brightness, contrast, and color saturation. This helps overcome some of the deficiencies that are commonly found in digital photographs or scanned-in images. To do this, right-click the image and select Colors. You'll find a variety of options to let you tweak the image, allowing you a lot of control over the process.

Adding Tags for Faster Searching

If you have hundreds or even thousands of digital photos stored on your hard drive, it can take quite some time to locate a specific photo. Even if you've titled your photos (such as birthday154.jpg), you still have to open them to see exactly who or what they display, or scan through thumbnails of all your photos looking (squinting, actually) for that one specific photo. It's a hassle, but Picasa offers a much better method.

Working with Photos and Images

Downloading photos from a digital camera Scanning photos and documents Manipulating images Viewing images Viewing PDF and PostScript files igital cameras are all the rage nowadays. Your SUSE Linux system is the perfect place to download the photos, view them, and, if necessary, touch up the photos. You can also scan photographs or documents, provided you have a scanner attached to your PC (typically through the USB port). SUSE Linux includes applications for working with digital cameras and scanners as well as editing images. You can use a camera application to download photos from your digital camera or simply access the camera as a USB mass storage device (just like another hard drive). The scanner application called Kooka enables you to easily scan hardcopy photos or documents and then use the images just like your digital photos. For simply viewing your digital photos, you can use image viewers such as Gwenview in KDE and Eye of Gnome in GNOME. For reading PDF files or PostScript...

Latest Desktop Technology

The goal of the GNOME Online Desktop is to provide a desktop suitable for running applications directly from the Web and storing information online. This allows the desktop to be the window to applications like Facebook, Gmail, Flickr, Netflix, and other online services. Figure 18-1 shows an example of the Online Desktop.

Click the thumbnails to select the images you want to download then choose DownloadODownload Selected to download the

After connecting your digital camera, click AutoDetect in this dialog box. After connecting your digital camera, click AutoDetect in this dialog box. Don't despair if Digikam doesn't recognize your digital camera or if you are using the GNOME desktop and Digikam is not installed by default. You can still access the digital camera's storage media (compact flash card, for example) as a USB mass storage device, provided that your camera supports USB mass storage. To access the images on your USB digital camera, use the following steps (by the way, I prefer transferring photos this way because I don't have to run any camera application such as Digikam) 2. Connect your digital camera to the USB port by using the cable that came with the camera, and then turn on the camera. This causes SUSE Linux to detect the camera. If you are using KDE, the Konqueror file manager opens the contents of the camera in a window. In GNOME, the F-Spot application displays a dialog box that asks whether you...

With gtkam and gPhoto2

With the gtkam window, you can download and work with images from digital cameras. The gtkam window is a front end to gPhoto2, which provides support for dozens of digital cameras in Linux. The gtkam window works by attaching a supported digital camera to a serial or USB port on your computer. You can view thumbnails of the digital images from the camera, view full-size images, and download the ones you select from the camera to your hard disk. fr.)r you have a camera that saves images to a floppy disk, just insert that disk into your S E& fczibASHH disk drive and the contents of the disk should open automatically on your desktop. In addition, if your camera saves images to SD or CF cards, you can purchase a USB card reader and view these files from Linux. Check the gPhoto2 Web site for information on supported cameras as well as other topics related to gPhoto. If you include experimental units and cameras under testing, there are over 900 supported cameras. New cameras are added...

A2 Setting Up and Cleaning Up Before Importing the Images

After you have clicked the Import Photos button in that first window, another window (Figure 14-2) will appear displaying the photos currently in your camera. In this window, you can do a little housecleaning and setup before actually saving photos to your hard disk. Figure 14-2 Importing digital photos from a camera Figure 14-2 Importing digital photos from a camera If you would like to delete all of the photos on your camera after importing them, check the box next to the words Delete imported images from the camera. If you would like to delete only a few images before getting around to the business of importing, click on the image or images you want to delete (holding down the CTRL key if you are selecting more than one), and then click the Delete icon. As you can see, there is also an option that allows you to keep the original filenames assigned by your camera. You no doubt understand what this means, so I'll tell you what not selecting this option means instead. When you import...

Importing Photos in FSpot

After importing the photographs, you can categorise and tag them as you would to create a playlist in a music player. Importing Photographs from the Hard Disk To import photographs into F-Spot from the hard disk of your computer 3. In the Import Source box, the Select Folder option is selected by default. Retain the option, navigate to the folder that contains the photographs and click Open.

Installing binary rpm files

One of my favorite applications for viewing pictures of my daughter is gqview. This package is not installed as part of an Enterprise Linux installation and must be installed separately. First, you need to find it. I did a search on the Web looking for gqview. The results showed the rpm file that I needed to download and then install to be able to use gqview to look at all the pictures of my daughter that I took with my digital camera. I installed the rpm file by following this procedure

Understanding Scanner Technology

Most scanners work by reflecting light off of an object and detecting the reflected light with a charge-coupled device (CCD). Stated this broadly, scanners are no different from digital cameras. In practice, scanners usually take longer to form an image because their CCDs can't take in the entire image at once. Instead, the scanner builds up the image as its CCD views one part of the page after another. Precisely how the scanner shifts its point of view varies from one device to another. These variations form the basis of the major classifications of scanners.

View and Edit Pictures

One of the greatest things about owning a home computer is that you can store thousands of pictures on the hard drive. With advances in digital photography, you no longer have to go out and buy film or pay for developing costs. You can easily transfer your pictures from your camera to your computer. If you have the right printer, you can make as many high quality copies of a photograph as you want without having to leave the house. As with music, video, and documents, Ubuntu creates an appropriate folder for you, in this case called Pictures. As you may have guessed, this is a storage location for your digital photographs and any other graphics you bring to the computer. Not only does Ubuntu provide you a place to store your pictures, but the nice people at Canonical made sure that Ubuntu came with an application that would help you import, organize, share, and edit your digital pictures. This program, called F-Spot, can be accessed by selecting Applications Graphics F-Spot Photo...

Reducing Kernel BootUp Time

The kernel boots rather quickly, even with no attempts to make it go faster. In the example later in this chapter, an unmodified kernel for a 400Mhz arm board boots in about seven seconds from power-up, and three of those seconds are spent by the boot loader waiting for the user to interrupt the boot process (the measurement was done on a device still used for development). This means the device is ready to run user programs in about four seconds. This also means speeding up the kernel boot process is a series of changes that reduce the speed in the quarter- to half-second range with effort, you can reduce the time to about two or three seconds, which is in the range of a digital camera.

Hardcopy Permitted

For example, the interface belonging to the Olympus digital camera is represented by the directory sys block sda . The directory sda is the digital camera accessed like a SCSI hard disk. To connect an interface with a device, file system links are used. In the Olympus digital camera example, a link exists from the file sys block sda device to the corresponding device as shown below

Pictures Sound and Video

When it comes to multimedia, Ubuntu is definitely no slacker. In fact, the Ubuntu Studio edition is absolutely brimming with programs for handling all types of multimedia. But you don't need to install Ubuntu Studio to be able to retouch and print photographs, edit home movies, or play your MP3s, because the standard Ubuntu edition comes with programs for these tasks, either preinstalled or available for download and installation with a few mouse clicks.

Using Your Digital Video Camera

Although they haven't achieved the ubiquitous status of digital still cameras, digital video cameras have become increasingly common in recent years. Likewise, while Linux support for still digital cameras is quite good, its support for DV cameras can be called . . . well, let's just say it's progressing. Don't be discouraged by my tone in that last sentence, though. You should have no trouble downloading video from your camera to your computer, editing those video files, and adding effects and even subtitles. To be honest, there are still some problems, especially in the area of file format conversions, but, as with all things Linux, it will only be a matter of time until the wrinkles are ironed out. There are also a couple of cool video editing apps that, while not quite ready for prime time, seem promising and are well worth keeping an eye on PiTiVi and Diva. For the time being, however, the application of choice for the digital video camera user is Kino. Kino, shown in Figure...

Capturing and Editing Digital Video with Kino

Once you have gone through the preparatory steps I've just mentioned, you are ready to capture video from your camera. To do this, connect your camera to your computer by FireWire cable (if it isn't still connected), turn on your camera to Play mode, and then start up Kino. Once Kino is open, click the Capture tab to the right of the playback pane. To get started capturing video, you can use the playback controls located below the playback pane. These control buttons actually control the functions of your camera itself. Start out by clicking the rewind button until you get to the beginning of the video segment you want to capture. Once you get there, click the play button, after which the video on your camera will play back within the Kino window. When you reach the point at which you want to start capturing, click the Capture button just above the play back controls in the Kino window. Kino will then start capturing your video to disk (in your home folder by default). To keep things...

Attention Advertisers

DestroyFlickr manages your on-line Flickr account. Figure 2. DestroyFlickr manages your on-line Flickr account. DestroyFlickr is a program that lets you manage your Flickr stream with an interface that resembles a light table. It's a convenient way to use Flickr. Another application that currently works under Linux is Flump. It is much more simplistic in its interface, but it can upload and download photos. Figure 3. Flump is a very simple Flickr app. Figure 3. Flump is a very simple Flickr app. FotoBooth is an application written in Flex that allows you to take photos with your Webcam. It supplies real-time effects you can apply to the photos and allows for uploading directly to Flickr. Figure 13. FotoBooth is a clone of Apple's PhotoBooth, with Flickr integration. Figure 13. FotoBooth is a clone of Apple's PhotoBooth, with Flickr integration.

Photo Editing Overview

Although many of us probably still have envelopes stuffed with old holiday and vacation photographs that have been glued together by time and humidity, it's been a long time since I've had to deal with film. I'm probably showing my age by mentioning it at all. I have a few generations of digital cameras with increasing resolution, my cell phone has a camera, my laptop has a camera, and even a wristwatch that I bought during an eBay seizure a few years ago has one. Digital photography makes it incredibly easy to archive, catalog, and share your photos while also reducing the number of items that you can't find when you want them they're all on your computer. (It also increases the number of items that you should back up ) Having all of your photos as digital images also makes it incredibly easy to fix problems ranging from red pupils and various forms of under- or overexposure, to Bolshevik-like purges of estranged relatives or insignificant others from the...

Get Paid to Take Digital Photos

Get Paid to Take Digital Photos

Reasonable care has been taken to ensure that the information presented in this book isĀ  accurate. However, the reader should understand that the information provided does not constitute legal, medical or professional advice of any kind.

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