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<h2 class="title" style="clear: both"><a name="digicam-digikam"></a>2. Digital Cameras
</h2>
</div>
</div>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a name="digikam-configure"></a>2.1. Configuring Your Digital Photo
Camera
</h3>
</div>
</div>
</div>
<p><a name="BIdNEW-digicam-digikam-pa35"></a>This section describes the
different functions of <span class="application">digiKam</span>. We go through
basic configuration, image transfer from your camera to your computer,
image editing, and creating web albums.
</p>
<p><a name="BId-digicam-digikam-pa4"></a><span class="inlinemediaobject"><img src="images/digikam-icon.png"></span> To start using <span class="application">digiKam</span>,
plug your camera in a free <acronym class="acronym">USB</acronym> slot, turn it on into
“<span class="quote">play</span>” mode <sup>[<a name="d5e3853" href="#ftn.d5e3853" class="footnote">6</a>]</sup>, and choose <span class="guimenu">Multimedia</span>+<span class="guimenu">Graphics</span> → <span class="guimenuitem">digiKam</span> from the main menu to launch
<span class="application">digiKam</span>. The 1 <sup>st</sup>
time you do this operation, you must provide a folder to store pictures
into: you can accept the default. If your camera is not listed in the
<span class="guimenu">Camera</span> menu, then choose <span class="guimenuitem">Add
Camera</span> and click on <span class="guibutton">Auto-Detect</span>. If
detection fails, click on <span class="guibutton">Add</span> and look for your
camera in the list, or fill the parameters corresponding to your camera,
and accept your settings.
</p>
<p><a name="BId-digicam-digikam-pa2"></a>Check <a class="ulink" href="http://www.gphoto.org/proj/libgphoto2/support.php" target="_top"> GPhoto2's
supported cameras list</a> for more information on camera support. If
your camera uses the Picture Transfer Protocol (<acronym class="acronym">PTP</acronym>),
it may be supported even if it's not in the
<span class="application">Gphoto2</span> list. You can also consult the very
complete <a class="ulink" href="http://www.teaser.fr/~hfiguiere/linux/digicam.html" target="_top"> Digital
Camera Support for UNIX, Linux and BSD</a> web page.
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BId-digicam-digikam-pa1"></a><a class="indexterm" name="BId-digicam-digikam-it1"></a> <a class="indexterm" name="BId-digicam-digikam-it2"></a> Although there are still serial-connected
(<acronym class="acronym">RS-232</acronym>) digital cameras around, all recent digital
cameras use <acronym class="acronym">USB</acronym>, so we assume that you have a
<acronym class="acronym">USB</acronym> camera.
</p>
</td>
</tr>
</table>
</div>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a name="digicam-storage"></a>2.2. Handling Digital Camera Storage
Media
</h3>
</div>
</div>
</div>
<p><a name="BId-digicam-digikam-pa6"></a>If your digital camera
is not recognized, you can still try to use a <acronym class="acronym">USB</acronym>
“<span class="quote">card reader</span>” which lets you plug in the camera's memory.
They usually appear mounted under the <code class="filename">/media</code> folder,
so you can access them as you would any other storage device. Many card
readers support multiple memory card types: Compact Flash, Secure Digital,
etc.
</p>
<p><a name="BId-digicam-digikam-pa7"></a>If you have a laptop computer with
a <acronym class="acronym">PCMCIA</acronym> slot, you can use the <acronym class="acronym">ATA</acronym>
photo memory <acronym class="acronym">PCMCIA</acronym> card adapters. They are mounted
just like any other <acronym class="acronym">ATA</acronym> device
(<acronym class="acronym">CD-ROM</acronym>, hard disk, etc.) in order to access your
pictures. This is the fastest method to access photo cards. It also means
the camera's batteries could last longer.
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BId-digicam-digikam-pa8"></a>When you use a card
reader or adapter, <span class="emphasis"><em>any</em></span> type of file can be
accessed, not only pictures. You can put whatever file you want on your
memory card.
</p>
</td>
</tr>
</table>
</div>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a name="digikam-manage-pics"></a>2.3. Transferring Pictures
</h3>
</div>
</div>
</div>
<div class="procedure">
<ol type="1">
<li>
<p><a name="BId-digicam-digikam-pa9"></a><a class="indexterm" name="BId-digicam-digikam-it3"></a> Choose <span class="guimenu">Camera</span> → <span class="guimenuitem">Your_Digital_Camera_Model</span> from the menu.
</p>
</li>
<li>
<p><a name="BIdNEW-digicam-digikam-pa28"></a>Select the photos you want
to transfer in the <span class="application">digiKam</span> camera import
window. New in-camera images are then marked in the upper-right
border.
</p>
</li>
<li>
<p><a name="BIdNEW-digicam-digikam-pa29"></a>Click on
<span class="guibutton">Download</span> and select the <span class="guilabel">Download
Selected</span> option.
</p>
</li>
<li>
<p><a name="BIdNEW-digicam-digikam-pa30"></a>Choose the album to store
photos into and click <span class="guibutton">OK</span>. Click on
<span class="guibutton">Create</span> and enter an album name to create a new
album.
</p>
</li>
<li>
<p><a name="BIdNEW-digicam-digikam-pa31"></a>Selected pictures are
transferred to that album <sup>[<a name="d5e3924" href="#ftn.d5e3924" class="footnote">7</a>]</sup>.
</p>
<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Tip">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="images/tip.png"></td>
<th align="left">Tip</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BIdNEW-digicam-digikam-pa32"></a>If the camera saves
rotation information in the picture, then the picture is
automatically rotated while transferring it. If the picture is not
rotated automatically, you can still rotate it by hand, see <a class="xref" href="digicam-digikam.html#digicam-rotate" title="2.4.1. Rotation">Section 2.4.1, “Rotation”</a>.
</p>
</td>
</tr>
</table>
</div>
</li>
</ol>
</div>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a name="digicam-tochup"></a>2.4. Touching Up Pictures
</h3>
</div>
</div>
</div>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Warning">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="images/warning.png"></td>
<th align="left">Warning</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BId-digicam-digikam-pa15"></a>All transformations
on pictures are made on the on-disk file,
<span class="application">digiKam</span> doesn't make a backup of the
transformed pictures. Transformations may affect the quality of the
picture's on-disk file and are, when possible, loss-less.
</p>
</td>
</tr>
</table>
</div>
<p><a name="BId-digicam-digikam-pa16"></a><a class="indexterm" name="BId-digicam-digikam-it6"></a> <span class="inlinemediaobject"><img src="images/editimage.png"></span> Select a picture and click on this button to open
the image edit window. Bear in mind that on-screen rendering is quite
different from printing your digital pictures on photographic paper. So if
you intend to both print and publish your pictures for online viewing, it
might be wise to treat both copies differently from the beginning.
</p>
<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Tip">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="images/tip.png"></td>
<th align="left">Tip</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BId-digicam-digikam-pa17"></a>Press <span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Z</strong></span> to undo the last transformation operation. However, once
you have saved the image, changes cannot be undone.
</p>
</td>
</tr>
</table>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a name="digicam-rotate"></a>2.4.1. Rotation
</h4>
</div>
</div>
</div>
<p><a name="BId-digicam-digikam-pa13"></a><a class="indexterm" name="BId-digicam-digikam-it5"></a> <span class="inlinemediaobject"><img src="images/rotate_cw.png"></span> Simply choose one of the entries (90º, 180º or
270º) from the <span class="guimenu">Transform</span>+<span class="guimenu">Rotate</span> menu.
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BIdNEW-digicam-digikam-pa33"></a>When rotating pictures
“<span class="quote">by hand</span>”, it is better to correct the
<acronym class="acronym">EXIF</acronym> orientation information in order for the
<acronym class="acronym">EXIF</acronym> information to reflect the picture correctly.
Choose the appropriate entry from the <span class="guimenu">Image</span> → <span class="guimenuitem">Correct Exif Orientation Tag</span> menu.
</p>
</td>
</tr>
</table>
</div>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a name="digicam-brite-cont-gamma"></a>2.4.2. Brightness, Contrast and
Gamma
</h4>
</div>
</div>
</div>
<div class="mediaobject"><img src="images/digikam-brightness.png"></div>
<p><a name="BId-digicam-digikam-pa18"></a><a class="indexterm" name="BId-digicam-digikam-it7"></a> <a class="indexterm" name="BId-digicam-digikam-it8"></a> <a class="indexterm" name="BId-digicam-digikam-it9"></a> <span class="inlinemediaobject"><img src="images/contrast.png"></span> Choose <span class="guimenu">Fix</span>+<span class="guimenu">Colors</span> → <span class="guimenuitem">Brightness/Contrast/Gamma</span> from the menu and use the sliders to adjust the
brightness, contrast and gamma of the picture using the picture copy as
a guide.
</p>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a name="digicam-sharpen"></a>2.4.3. Sharpen
</h4>
</div>
</div>
</div>
<div class="mediaobject"><img src="images/digikam-sharpen.png"></div>
<p><a name="BId-digicam-digikam-pa19"></a><a class="indexterm" name="BId-digicam-digikam-it10"></a> <span class="inlinemediaobject"><img src="images/sharpenimage.png"></span> Choose <span class="guimenu">Fix</span> → <span class="guimenuitem">Sharpen</span> from the menu, drag the rectangle to the part of the
image to be used as a guide, and use the slider to sharpen the
picture.
</p>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a name="digicam-redeye"></a>2.4.4. Red-Eye Reduction
</h4>
</div>
</div>
</div>
<div class="mediaobject"><img src="images/digikam-redeye.png"></div>
<p><a name="BId-digicam-digikam-pa20"></a><a class="indexterm" name="BId-digicam-digikam-it11"></a> <span class="inlinemediaobject"><img src="images/redeyes.png"></span> Select the pupil of the eye to fix, choose
<span class="guimenu">Fix</span> → <span class="guimenuitem">Red Eye Reduction</span> from the menu, and then select the aggressive (only part
of the eye selected) or mild (more than the eye selected) option to
reduce the red-eye flash effect. Repeat for the other eye, if
needed.
</p>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a name="digicam-img-resize-crop"></a>2.4.5. Image Resizing and
Cropping
</h4>
</div>
</div>
</div>
<div class="mediaobject" align="center"><img src="images/digikam-resize.png" align="middle"></div>
<p><a name="BId-digicam-digikam-pa21"></a><a class="indexterm" name="BId-digicam-digikam-it12"></a> <span class="inlinemediaobject"><img src="images/resize_image.png"></span> Multi-megapixel images are excellent for
photographic paper print-ups, but are far from adequate for e-mailing or
publishing on the Web. Choose <span class="guimenu">Transform</span> → <span class="guimenuitem">Resize</span> from the menu, then select the desired size, either in
pixels or in percentage, and whether or not to keep (recommended) the
aspect ratio.
</p>
<div class="mediaobject"><img src="images/digikam-crop.png"></div>
<p><a name="BId-digicam-digikam-pa21a"></a><span class="inlinemediaobject"><img src="images/ratiocrop.png"></span> You can also crop an image to a desired size
while keeping aspect ratio. Choose <span class="guimenu">Transform</span> → <span class="guimenuitem">Aspect Ratio Crop</span> from the menu, drag the rectangle to frame the part of
the image you are interested on, and select the aspect ratio,
orientation, width and height (one follows the other according to the
aspect ratio selected).
</p>
<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Tip">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="images/tip.png"></td>
<th align="left">Tip</th>
</tr>
<tr>
<td align="left" valign="top">
<p><a name="BId-digicam-digikam-pa22"></a>For electronic publication,
the usual aspect ratio is <code class="literal">4:3</code>, while for printing
the usual aspect ratio is <code class="literal">3:2</code>.
</p>
<p><a name="BId-digicam-digikam-pa23"></a>Usually a size of
<code class="literal">640x480</code> is enough when e-mailing a photo, while
<code class="literal">800x600</code> is enough for web publishing.
</p>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a name="digikam-exif"></a>2.5. EXIF Photographic
Settings, Comments and Tags
</h3>
</div>
</div>
</div>
<p><a name="BIdNEW-digicam-digikam-pa34"></a>You can use the tabs located at
the right of <span class="application">digiKam</span>'s window to view EXIF
information, add comments and tags, etc.
</p>
<p><a name="BId-digicam-digikam-pa24"></a><span class="inlinemediaobject"><img src="images/exifinfo.png"></span> Most digital cameras produce
<acronym class="acronym">EXIF</acronym> (Exchangeable Image File Format) files.
<acronym class="acronym">EXIF</acronym> provides extra tags containing information about
the image such as the date, camera model, exposure time,
<acronym class="acronym">ISO</acronym> speed setting, aperture, etc. Select the picture,
open the <span class="guilabel">Metadata</span> tab, and select the
<span class="guilabel">EXIF</span> tab.
</p>
<p><a name="BId-digicam-digikam-pa26"></a><span class="inlinemediaobject"><img src="images/imagecomment.png"></span> To add a comment to a picture, open the
<span class="guilabel">Comments/Tags</span> tab, then enter your
<span class="guilabel">Comments</span>(see <a class="xref" href="digicam-digikam.html#digikam-exif-comment" title="Figure 5.8. Adding a Comment and a Tag to a Picture">Figure 5.8, “Adding a Comment
and a Tag to a Picture”</a>). Using the same tab you can also add
tags to your pictures, for example, to organize them. Click on
<span class="guibutton">Apply</span> once you are satisfied with your
settings.
</p>
<div class="figure"><a name="digikam-exif-comment"></a><p class="title"><b>Figure 5.8. Adding a Comment
and a Tag to a Picture</b></p>
<div class="figure-contents">
<div class="mediaobject"><img src="images/digikam-exif-comment.png" alt="Adding a Comment and a Tag to a Picture"></div>
</div>
</div><br class="figure-break">
</div>
<div class="section" lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a name="digikam-web-album"></a>2.6. Web Albums
</h3>
</div>
</div>
</div>
<p><a name="BId-digicam-digikam-pa27"></a>If you want to share
your pictures with your family and friends, you can easily create a
“<span class="quote">Web Album</span>” of your pictures. Choose <span class="guimenu">Album</span>+<span class="guimenu">Export</span> → <span class="guimenuitem">HTML Gallery</span> from the menu, select the album options (theme, picture
and thumbnails size and format, etc.), finally provide a
<span class="guilabel">Destination folder</span> to store the album and click
<span class="guibutton">Finish</span> to create it: the album is then opened
inside the browser for you to preview it (see <a class="xref" href="digicam-digikam.html#digikam-webalbum" title="Figure 5.9. Previewing a Web Album">Figure 5.9, “Previewing a Web
Album”</a>). You are ready to upload the album to the
Web.
</p>
<div class="figure"><a name="digikam-webalbum"></a><p class="title"><b>Figure 5.9. Previewing a Web
Album</b></p>
<div class="figure-contents">
<div class="mediaobject"><img src="images/digikam-webalbum.png" alt="Previewing a Web Album"></div>
</div>
</div><br class="figure-break">
</div>
<div class="footnotes"><br><hr width="100" align="left">
<div class="footnote">
<p><sup>[<a name="ftn.d5e3853" href="#d5e3853" class="para">6</a>] </sup>As opposed to
“<span class="quote">record</span>” mode, which is the mode used to take
pictures.
</p>
</div>
<div class="footnote">
<p><sup>[<a name="ftn.d5e3924" href="#d5e3924" class="para">7</a>] </sup>Albums are
stored in the <code class="filename"> /home/user_name/Pictures</code>
folder.
</p>
</div>
</div>
</div>
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<td width="40%" align="left" valign="top">1. Graphic Art And Image
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distrib
>
Mandriva
>
2008.1
>
x86_64
>
media
>
main-release
>
by-pkgid
>
275bc5f884d593fea8c87799d871d7f1
>
files
>
31
