how to get the coordinates of certain pixel based on color

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Posted on 2010-06-17 02:13:35.526178-07 by roggli

Hi I need to find where a certain color is in an image. What I did for now is the following

$img->getpixel(x => $x, y => $y)

within two loops for $x and $y. On an 1024x1024 pixel image it takes quite some time. Is there a better way to speed up the process? best regards

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