Finding image in image

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anthony
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Post by anthony » 2006-03-09T19:05:52-07:00

Yes it is posible, but depend on exactly what you are trying to find.

The simplist methof would be to make a copy of the image, trash all the unwanted colors, say using
-fill white -bordercolor red -draw 'color 0,0 border'
to leave just the red colors.

Then -trim the image and look at the info: output, to see what the image trimmed down to. That will be the size and location of your red pixels.

For a simular example of trashing images and trimming to locate some object
see.. Triiming 'Noisy' Images
http://www.cit.gu.edu.au/~anthony/graph ... #trim_blur

Just replace the blur-fuzz parts with your color trashing function.
Anthony Thyssen -- Webmaster for ImageMagick Example Pages
https://imagemagick.org/Usage/

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