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Held: Tuesday, 31 October 2006
Summary: Today we consider some procedures for manipulating existing images.
(get-color-at image x y)gets a color from an image.
(set-color-at! image x y color)sets a color in an image.
(modify-image! transform image)applies
transformto every point in the image.
I usually create these pages
on the fly, which means that I rarely
proofread them and they may contain bad grammar and incorrect details.
It also means that I tend to update them regularly (see the history for
more details). Feel free to contact me with any suggestions for changes.
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