Corel Painter X3 Win/Mac, EDU, EN User's Guide Page 875

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852 Corel Painter X3 Getting Started Guide
8 In the Preview window, verify that the selected area is correctly masked and that
the transparent area is correctly positioned. Transparent areas are designated with a
grid.
If necessary, drag in the Preview window to view all parts of the image.
9 Choose one of the following imaging methods:
Quantize To Nearest Color — causes Corel Painter to look at each pixel and
pick the nearest color. This is useful when the image you are saving has broad
areas of a single color.
Dither Colors — causes Corel Painter to apply a stippled effect to the colors
chosen to generate a more accurate, less banded result. Unfortunately, Dither
Colors can reduce the effectiveness of GIF file compression.
The RIFF format contains image data that is lost when saving to GIF or
JPEG. To edit the file later, save a RIFF copy before saving to the GIF or
JPEG file format.
Creating animated GIFs
Corel Painter can open a QuickTime movie, which can be painted on, then saved as an
animated GIF. Additionally, you can create a new movie or animation from scratch in
Corel Painter and save it as an animated GIF, QuickTime, or Audio/Video Interleaved
(AVI) movie.
For information about creating movies, see “Working with animation and digital
videos” on page 789.
Reducing the number of colors
Web designers are always seeking a careful balance when creating graphics for the web.
Artwork and images must be as rich and vibrant as possible while remaining small and
easily downloadable.
One way of keeping an image’s file size small is to reduce the number of colors used to
create that graphic element. Reducing the number of colors used reduces file size and,
therefore, download time.
A web artist may end up saving multiple versions (varying in the number of colors used)
of the same graphic element. These versions must then be placed on a page, loaded to
the page, and viewed to determine if the quantity of colors used is acceptable. This
whole process can be time-consuming and confusing.
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