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Lesson 16. Optimizing Web Images > Locking more colors to prevent unwanted dith...

Locking more colors to prevent unwanted dithering

The challenge of working with 32 colors is finding the ideal 32 colors. As you saw in the previous procedure, correcting an unwanted dithering effect or color shift in one area tends to produce other problems in other areas.

Rather than giving up on the locking process, you’ll continue to refine the image by locking more colors. You’ll go back and forth between 32 and 128 colors, locking in the original colors when the reduction to 32 colors causes unwanted dithering or a change in color. Once you’ve locked a color, it’s important to reexamine the entire image carefully, to see what kinds of problems that color lock has created.


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