See http://www.imagemagick.org/Usage/distorts/#perspective
Briefly, perspective transformation is *not* an affine transformation. Affine transformations include only scaling, shearing, rotating and translating, none of which can alter the ratio of lengths in the way that perspective requires. Therefore the -affine option isn't going to cut it. You have to do heavier lifting using the -fx option, using numbers calculated using the perl script on that page (or a similar method). (I ran into a similar wall several years ago with Postscript.) On 6/18/07, Alberto Simões <[EMAIL PROTECTED]> wrote:
Hi I am trying to modify an image putting it in a perspective-like position, like this: |\ | \ | \ | | | | | / | / |/ I tried to use the -affine option, with a matrix I got with 'transform' tool on gimp, but I couldn't get this type of modification. Does anybody can help me with this? Thank you Alberto -- Alberto Simões _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
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