235
225
graphics applications and how to use them.</para>
239
<title>Viewing Images with gThumb</title>
241
<para>gThumb enables you to browse and locate image files, organise images
242
in catalogues, print images, view slide shows and export Web-based albums
243
with various graphic themes. This application also offers the typical
244
features of an image viewer, such as copying, moving, deleting, printing,
245
zooming and converting image formats.</para>
248
<title>Viewing Images</title>
250
<para>Images can be viewed in various formats, such as BMP, JPEG, GIF,
251
PNG, TIFF, ICO, XPM and GIF animations.</para>
254
<title>To view an image:</title>
256
<step performance="required">
257
<para>On the <emphasis role="strong">Applications</emphasis> menu,
258
point to <emphasis role="strong">Graphics</emphasis> and click
259
<emphasis role="strong">gThumb Image Viewer</emphasis>. The
260
<emphasis role="strong">gThumb</emphasis> window opens.</para>
263
<title>Launching gThumb Image Viewer</title>
267
<imagedata fileref="images/Lesson08_images_006.png"
268
format="PNG" width="11cm" />
274
<step performance="required">
275
<para>In the left pane of the <emphasis
276
role="strong">gThumb</emphasis> window, click <emphasis
277
role="strong">Images</emphasis> and navigate to the folder that
278
contains the images. Alternatively, if you know the name of the
279
image, type the image name and click <emphasis
280
role="strong">Search</emphasis> on the toolbar. The right pane of
281
the <emphasis role="strong">gThumb</emphasis> window displays the
282
selected image as a thumbnail.</para>
285
<title>gThumb Window</title>
289
<imagedata fileref="images/Lesson08_images_007.png"
290
format="PNG" width="10cm" />
296
<step performance="required">
297
<para>If there are too many images displayed in the right pane, it
298
may be difficult for you to find the image you want. The <emphasis
299
role="strong">Show</emphasis> option at the bottom in the right pane
300
limits the range of visible images. For example, you can specify a
301
criterion, such as <emphasis role="strong">Date</emphasis>, to
302
display images stored on your computer on a specific date or
303
<emphasis role="strong">Size</emphasis>, to display images of a
304
specific size. Click the <emphasis role="strong">Show</emphasis>
305
arrow and select the appropriate option from the <emphasis
306
role="strong">Show</emphasis> list.</para>
309
<title>Selecting Image Display Options</title>
313
<imagedata fileref="images/Lesson08_images_008.png"
314
format="PNG" width="10cm" />
320
<step performance="required">
321
<para>To view images in their original order of arrangement, click
322
<emphasis role="strong">Fullscreen</emphasis> on the toolbar. The
323
first image in the series opens in a fullscreen window.</para>
326
<title>Viewing Image in Fullscreen Mode</title>
330
<imagedata fileref="images/Lesson08_images_009.png"
331
format="PNG" width="11cm" />
336
<para>The toolbar in the fullscreen window provides the following
337
options: <itemizedlist>
340
<title>Leave Fullscreen:</title>
342
<para>Click <emphasis role="strong">Leave
343
Fullscreen</emphasis> to exit fullscreen mode and return to
344
the gThumb window.</para>
350
<title>Zoom In and Out:</title>
352
<para>Click the zoom options to adjust the display size of
353
an image. Use <emphasis role="strong">In</emphasis> to
354
increase the size and <emphasis role="strong">Out</emphasis>
355
to decrease the size of the image.</para>
361
<title>Image properties:</title>
363
<para>Click <emphasis role="strong">Properties</emphasis> to
364
view the properties of an image, such as the dimensions,
365
size or the date on which the image was saved on the
374
<para>or <emphasis role="strong">Previous:</emphasis> Click
375
these buttons to navigate through and view the images in the
379
</itemizedlist></para>
384
<para>For the first image, <emphasis
385
role="strong">Previous</emphasis> is disabled and for the last
386
image, <emphasis role="strong">Next</emphasis> is disabled.</para>
390
<step performance="required">
391
<para>To view images in random order, in the gThumb window, click
392
the thumbnail of any image and then click <emphasis
393
role="strong">Fullscreen</emphasis> to view the image in fullscreen
396
<note userlevel="instructor">
397
<title>Instructor Notes:</title>
399
<para>If time permits, provide a brief description of the
400
catalogues, comment and category options in the gThumb window
401
toolbar. These options will help users better organise their
408
<title>Running Slide Shows</title>
410
<para>You can create slide shows to save clicking through your photos.
411
A slide show is a display of a series of chosen images.</para>
415
<title>To run a slide show:</title>
417
<step performance="required">
418
<para>Select the images you want to include in your slide show. In
419
the <emphasis role="strong">gThumb</emphasis> window, click
420
<emphasis role="strong">Slide Show</emphasis> to start a slide show
421
of all the images in the right pane, in the order of arrangement. To
422
view a slide show of a few selected images, hold down the <emphasis
423
role="strong">Ctrl</emphasis> key, click the images you want to
424
view, release the <emphasis role="strong">Ctrl</emphasis> key and
425
click <emphasis role="strong">Slide Show</emphasis>. The slide show
426
begins, displaying all the images, beginning with either the first
427
image in the pane or the one you selected.</para>
430
<title>Starting a Slide Show</title>
434
<imagedata fileref="images/Lesson08_images_010.png"
435
format="PNG" width="10cm" />
441
<title>Viewing Image in Slide Show Mode</title>
445
<imagedata fileref="images/Lesson08_images_011.png"
446
format="PNG" width="11cm" />
452
<step performance="required">
453
<para>The gThumb slide show uses the default settings of a 4-second
454
delay between images, one-time play forward and fading effects as
455
transition between images. To change the default slide show
456
settings, on the <emphasis role="strong">Edit</emphasis> menu, click
457
the <emphasis role="strong">Preferences option</emphasis>. The
458
<emphasis role="strong">gThumb Preferences</emphasis> dialogue box
462
<title>Modifying gThumb Preferences</title>
466
<imagedata fileref="images/Lesson08_images_012.png"
467
format="PNG" width="10cm" />
473
<step performance="required">
474
<para>In the <emphasis role="strong">gThumb Preferences</emphasis>
475
dialogue box, click the <emphasis role="strong">Slide
476
Show</emphasis> tab and change the slide show settings. Click
477
<emphasis role="strong">Close</emphasis>.</para>
480
<title>Modifying Slide Show Preferences</title>
484
<imagedata fileref="images/Lesson08_images_013.png"
485
format="PNG" width="6cm" />
494
<title>Removing Red Eye</title>
496
<para>In some cameras, the proximity of the flash to the lens causes the
497
light from the flash to reflect from the subject's retina to the lens,
498
leaving a red eye mark on the image. Referred to as a red eye, the size
499
of the mark depends on the amount of light reflected. The gThumb
500
software can be used to remove the red eye from images.</para>
503
<title>To remove red eye from an image:</title>
505
<step performance="required">
506
<para>In the <emphasis role="strong">gThumb</emphasis> window,
507
double-click the thumbnail of the image that has a red eye. The
508
image opens in a new window.</para>
511
<title>Image with a Red Eye</title>
515
<imagedata fileref="images/Lesson08_images_014.png"
516
format="PNG" width="7cm" />
522
<step performance="required">
523
<para>In the edit window, click <emphasis
524
role="strong">Image</emphasis> and then click the <emphasis
525
role="strong">Redeye Removal</emphasis> option. The <emphasis
526
role="strong">Red-Eye Removal</emphasis> dialogue box opens.</para>
529
<title>Launching Redeye Removal Dialogue Box</title>
533
<imagedata fileref="images/Lesson08_images_015.png"
534
format="PNG" width="10cm" />
540
<step performance="required">
541
<para>Click on or near the affected region, to replace the red eye
542
with black. If you are not happy with the result, you can click the
543
<emphasis role="strong">Undo</emphasis> icon in the <emphasis
544
role="strong">Red-Eye Removal</emphasis> dialogue box. Click
545
<emphasis role="strong">Save</emphasis> to replace the affected
546
image with the edited one in the <emphasis
547
role="strong">gThumb</emphasis> window.</para>
550
<title>Removing Red Eye</title>
554
<imagedata fileref="images/Lesson08_images_016.png"
555
format="PNG" width="10cm" />
563
<para>The edited image also replaces the image stored on your
564
computer. Ensure that you save a copy of the image before editing
573
<title>The GIMP</title>
575
<para>GNU Image Manipulation Programme (GIMP) is the default graphic
576
application in Ubuntu, licensed under the GNU General Public License. It
577
is an open-source multi-platform image manipulation tool, available in
578
many languages. You can use GIMP to re-touch photos, compose and create
579
images, re-size, crop, manipulate colours and convert image
582
<para>GIMP has a number of useful features: <itemizedlist>
584
<para>A full suite of painting tools, including brushes, a pencil
585
and an airbrush</para>
589
<para>Selection tools such as rectangle, ellipse, free, fuzzy and
594
<para>Transformation tools such as rotate, scale, shear and
599
<para>Tile-based memory management so that the image size is limited
600
only by available disk space</para>
604
<para>Multiple undo/re-do operations limited only by disk
609
<para>Advanced scripting capabilities</para>
613
<para>Layers and channels for complex drawings</para>
617
<para>Sub-pixel sampling for all paint tools to minimise distortion
618
while representing high-resolution images in lower resolution or
619
stretched mode</para>
623
<para>Full alpha channel support to simulate transparency in
628
<para>Support for multiple file formats, including GIF, JPEG, PNG,
629
XPM, TIFF, TGA, MPEG, PS, PDF, PCX and BMP</para>
631
</itemizedlist></para>
634
<title>To launch GIMP from the desktop:</title>
636
<step performance="required">
637
<para>On the <emphasis role="strong">Applications</emphasis> menu,
638
point to <emphasis role="strong">Graphics</emphasis> and click
639
<emphasis role="strong">GIMP Image Editor</emphasis>. The <emphasis
640
role="strong">GIMP Tip of the Day</emphasis> prompt is displayed.
641
Click <emphasis role="strong">Close</emphasis> on the <emphasis
642
role="strong">GIMP Tip of the Day</emphasis> prompt. The <emphasis
643
role="strong">GIMP</emphasis> window opens.</para>
646
<title>GIMP Tip of the Day Dialogue Box</title>
650
<imagedata fileref="images/Lesson08_images_017.png" format="PNG"
657
<title>Nice to Know:</title>
659
<para>The GIMP mascot is a coyote named Wilber. He provides useful
660
tips while you use the application. If you do not want to see the
661
tips, clear the <emphasis role="strong">Show tip next time GIMP
662
starts</emphasis> check box.</para>
666
<step performance="required">
667
<para>To open an image for modification, on the <emphasis
668
role="strong">File</emphasis> menu, click <emphasis
669
role="strong">Open</emphasis> and select the image you want to
673
<title>Opening an Image for Editing</title>
677
<imagedata fileref="images/Lesson08_images_018.png" format="PNG"
684
<step performance="required">
685
<para>The selected image opens in the <emphasis
686
role="strong">Image</emphasis> window.</para>
689
<title>Editing Image</title>
693
<imagedata fileref="images/Lesson08_images_019.png" format="PNG"
699
<para>You can now modify the image by using the tools available in the
700
<emphasis role="strong">GIMP</emphasis> window.</para>
703
<title>Nice to Know:</title>
705
<para>You can drag and drop a colour from the toolbox or from a
706
colour palette onto an image. This fills the current image or
707
selection with the selected colour.</para>
710
<note userlevel="instructor">
711
<title>Instructor Notes:</title>
713
<para>If time permits, allow students to familiarise themselves with
714
GIMP. Ask students to open an image and perform basic operations
715
such as cropping the image, inserting text into the image, rotating
716
the layer and smudging the image by using the available
724
<title>Managing Photos with F-Spot</title>
230
<title>Viewing and Managing Photos with F-Spot</title>
726
232
<note userlevel="instructor">
727
233
<title>Instructor Notes:</title>
1026
532
</itemizedlist></para>
535
<title>Removing Red Eye</title>
537
<para>In some cameras, the proximity of the flash to the lens causes the
538
light from the flash to reflect from the subject's retina to the lens,
539
leaving a red eye mark on the image. Referred to as a red eye, the size
540
of the mark depends on the amount of light reflected. F-Spot Photo Manager
541
software can be used to remove the red eye from images.</para>
544
<title>Image with a Red Eye</title>
548
<imagedata fileref="images/Lesson08_images_014.png"
549
format="PNG" width="7cm" />
555
<title>To remove red eye from an image:</title>
557
<step performance="required">
558
<para>In the <emphasis role="strong">F-spot Photo Manager</emphasis> window,
559
click the thumbnail of the image that has a red eye. Click the <emphasis
560
role="strong">Edit</emphasis> button in the navigation toolbar. Use your mouse to select the area
561
you wish to correct on the image. You can zoom in on the area by using the slider bar in the bottom
562
of the work area.</para>
566
<title>Removing Red Eye</title>
570
<imagedata fileref="images/Lesson08_images_015.png"
571
format="PNG" width="10cm" />
577
<step performance="required">
578
<para>Click the <emphasis
579
role="strong">Redeye Removal</emphasis> icon underneath the image. F-spot automatically corrects
584
<para>The edited image also replaces the image stored on your
585
computer. Ensure that you save a copy of the image before editing
594
<title>The GIMP</title>
596
<para>GNU Image Manipulation Programme (GIMP) is the default graphic
597
application in Ubuntu, licensed under the GNU General Public License. It
598
is an open-source multi-platform image manipulation tool, available in
599
many languages. You can use GIMP to re-touch photos, compose and create
600
images, re-size, crop, manipulate colours and convert image
603
<para>GIMP has a number of useful features: <itemizedlist>
605
<para>A full suite of painting tools, including brushes, a pencil
606
and an airbrush</para>
610
<para>Selection tools such as rectangle, ellipse, free, fuzzy and
615
<para>Transformation tools such as rotate, scale, shear and
620
<para>Tile-based memory management so that the image size is limited
621
only by available disk space</para>
625
<para>Multiple undo/re-do operations limited only by disk
630
<para>Advanced scripting capabilities</para>
634
<para>Layers and channels for complex drawings</para>
638
<para>Sub-pixel sampling for all paint tools to minimise distortion
639
while representing high-resolution images in lower resolution or
640
stretched mode</para>
644
<para>Full alpha channel support to simulate transparency in
649
<para>Support for multiple file formats, including GIF, JPEG, PNG,
650
XPM, TIFF, TGA, MPEG, PS, PDF, PCX and BMP</para>
652
</itemizedlist></para>
655
<title>To launch GIMP from the desktop:</title>
657
<step performance="required">
658
<para>On the <emphasis role="strong">Applications</emphasis> menu,
659
point to <emphasis role="strong">Graphics</emphasis> and click
660
<emphasis role="strong">GIMP Image Editor</emphasis>. The <emphasis
661
role="strong">GIMP Tip of the Day</emphasis> prompt is displayed.
662
Click <emphasis role="strong">Close</emphasis> on the <emphasis
663
role="strong">GIMP Tip of the Day</emphasis> prompt. The <emphasis
664
role="strong">GIMP</emphasis> window opens.</para>
667
<title>GIMP Tip of the Day Dialogue Box</title>
671
<imagedata fileref="images/Lesson08_images_017.png" format="PNG"
678
<title>Nice to Know:</title>
680
<para>The GIMP mascot is a coyote named Wilber. He provides useful
681
tips while you use the application. If you do not want to see the
682
tips, clear the <emphasis role="strong">Show tip next time GIMP
683
starts</emphasis> check box.</para>
687
<step performance="required">
688
<para>To open an image for modification, on the <emphasis
689
role="strong">File</emphasis> menu, click <emphasis
690
role="strong">Open</emphasis> and select the image you want to
694
<title>Opening an Image for Editing</title>
698
<imagedata fileref="images/Lesson08_images_018.png" format="PNG"
705
<step performance="required">
706
<para>The selected image opens in the <emphasis
707
role="strong">Image</emphasis> window.</para>
710
<title>Editing Image</title>
714
<imagedata fileref="images/Lesson08_images_019.png" format="PNG"
720
<para>You can now modify the image by using the tools available in the
721
<emphasis role="strong">GIMP</emphasis> window.</para>
724
<title>Nice to Know:</title>
726
<para>You can drag and drop a colour from the toolbox or from a
727
colour palette onto an image. This fills the current image or
728
selection with the selected colour.</para>
731
<note userlevel="instructor">
732
<title>Instructor Notes:</title>
734
<para>If time permits, allow students to familiarise themselves with
735
GIMP. Ask students to open an image and perform basic operations
736
such as cropping the image, inserting text into the image, rotating
737
the layer and smudging the image by using the available
1031
746
<title>Drawing with Inkscape</title>
1557
1260
<step performance="required">
1558
<para>On the <emphasis role="strong">Tools</emphasis> menu, click
1559
<emphasis role="strong">Create Web Album</emphasis>. The <emphasis
1560
role="strong">Web Album</emphasis> window <emphasis
1561
role="strong">is</emphasis> displayed.</para>
1564
<step performance="required">
1565
<para>In the <emphasis role="strong">Web Album</emphasis> window,
1566
enter the required information, including the destination folder, the
1567
index file, the index page layout and the album style. Click <emphasis
1568
role="strong">Save</emphasis>.</para>
1571
<step performance="required">
1572
<para>The gThumb software creates the album and saves it at the
1573
specified location. Now, you can upload the Web album to a Web
1579
<title>Exercise 2: Exporting Images to the Web by using F-Spot</title>
1581
<para>You now want to share the photographs you uploaded only with
1582
friends. You also want to retain the photographs for a longer period
1583
than is typically permitted by Web hosting sites. How can you do
1588
<title>To perform the required task:</title>
1590
<step performance="required">
1591
<para>Launch <emphasis role="strong">F-Spot</emphasis>.</para>
1594
<step performance="required">
1595
<para>Click the <emphasis role="strong">Import</emphasis> button on
1596
the toolbar. The <emphasis role="strong">Import</emphasis> dialogue
1597
box is displayed.</para>
1600
<step performance="required">
1601
<para>In the <emphasis role="strong">Import</emphasis> dialogue box,
1602
click <emphasis role="strong">Select Folder</emphasis> from the
1603
<emphasis role="strong">Import Source</emphasis> box. Navigate to the
1604
source folder and click <emphasis role="strong">Open</emphasis>. The
1605
images are displayed.</para>
1608
<step performance="required">
1609
<para>Click <emphasis role="strong">Import</emphasis> in the <emphasis
1610
role="strong">Import</emphasis> dialogue box.</para>
1613
<step performance="required">
1614
<para>Select the images you want to export.</para>
1617
<step performance="required">
1618
<para>On the <emphasis role="strong">File</emphasis> menu, point to
1619
<emphasis role="strong">Export</emphasis> and click the
1623
<title>Note:</title>
1625
<para>To export images to the Web, you need to have an active
1626
account with the target Web site.</para>
1632
<title>Exercise 3: Removing Red Eye from an Image</title>
1634
<para>You took photographs at your recent birthday party but some of the
1635
people have red eye marks which need to be removed.</para>
1639
<title>To perform the required task:</title>
1641
<step performance="required">
1642
<para>Launch <emphasis role="strong">gThumb</emphasis> and import the
1643
affected images.</para>
1646
<step performance="required">
1647
<para>Double-click an image with a red eye mark.</para>
1650
<step performance="required">
1651
<para>On the <emphasis role="strong">Image</emphasis> menu, click
1652
<emphasis role="strong">Redeye Removal</emphasis>. The <emphasis
1653
role="strong">Red-Eye Removal</emphasis> dialogue box is
1657
<step performance="required">
1658
<para>In the <emphasis role="strong">Red-Eye Removal</emphasis>
1659
dialogue box, click on or near the red eye. This replaces the red eye
1660
with black colour.</para>
1663
<step performance="required">
1664
<para>Click <emphasis role="strong">Undo</emphasis> if you are not
1665
happy with the result. Save the edited version of the image.</para>
1261
<para>Click <emphasis role="strong">Copy</emphasis> to import the selected photos. F-Spot
1262
displays the photos in the preview window.</para>
1265
<step performance="required">
1266
<para>In the preview window,select the photos you want include or use <emphasis
1267
role="strong">Select All</emphasis> from the <emphasis
1268
role="strong">Edit</emphasis> menu.</para>
1271
<step performance="required">
1272
<para>In the <emphasis
1273
role="strong">Photo menu</emphasis>, select the <emphasis
1274
role="strong">Export to</emphasis> and then <emphasis
1275
role="strong">Web Gallery</emphasis>. </para>
1277
<step performance="required">
1278
<para>You will need to enter the name of the Gallery, as well as the URL and log-in information for
1279
the site. F-Spot will then upload the selected items to the website.</para>