2013

Photo Handling 257
page background of the browser, unless you’ve also given the pasteboard (the area
around the page) a different background.
Save
Select the bitmap and click SAVE will save the original image. In the case of an
embedded JPEG this will save the original JPEG file. Other bitmap types are best
saved as PNG bitmap type.
Bitmap Properties
The PROPERTIES button will display information about the selected bitmap in the
gallery. It also provides a way to stop image smoothing when bitmaps are enlarged.
Usually all bitmaps are smoothed when enlarged, or zoomed into, on screen. There is
a check-box option in the Properties dialog to turn this feature off, so that individual
pixels are visible when you zoom in.
Note that this option only affects scaled up bitmaps. Note also that NEVER SMOOTH
in the VIEW tab of the OPTIONS dialog box overrides this check box.
It also provides information about the Animation properties of the bitmap. This is only
really applicable to animated GIF images
GIF ANIMATION:
•
DELAY (the time this frame is left on screen)
•
RESTORE: The Animated GIF Restore setting sets what happens between each
frame in an animated GIF. Nothing means no action is taken. Many browsers take
this as meaning the same as the Leave As Is option. Leave As Is displays the
frames one on top of another - this leaves many frames visible in a stack if some
are transparent. Some browsers clear the animation before it loops again, some
do not. Background restores the area covered by the graphic to the background
color of the GIF (usually white). Restore Previous restores the area covered by
the frame to what it was before the frame was displayed. This is interpreted by
some browsers to mean that the frame should be cleared to the background
before each frame is displayed and by others to mean that the frame should be
shown on top of the previous frame. As browsers interpret these values in
different ways, you may need to experiment to achieve the desired result.
Embedded JPEG files
JPEG files are hugely compressed from their original state, being up to 10 times
smaller than the original uncompressed image. In the above example, the original
uncompressed image requires more than 7mb of memory, but as the
BITMAP GALLERY
shows, this JPEG file is only 1mb. A very significant reduction. This is why JPEG
images are the standard file type for digital photography and use on the web.