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Old 04-08-2010, 05:32 AM   #14
Junior Member
dud began at the beginning.
Posts: 4
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Join Date: Apr 2010
Device: pocketbook 360
Originally Posted by kacir View Post
One trick.

convert escher01.png -quantize GRAY +dither -colors 16 -rotate "-90>" escher01.bmp

the -rotate "-90>" is an interesting option, because it rotates the picture only if the width is greater than height.
Great hint!
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