=?ISO-8859-1?Q?G=FCnter_Bachelier?= on wrote... | Hello, | | why remains $mask after compose=3D>'CopyOpacity' unchanged? | | $extraction_mask->Set(matte=3D>'false'); # $extraction_mask =3D white = | But is that the way to turn off alpha channel in Magick++?
If this is not turning off the alpha channel, then CopyOpacity will not do what you expect. Please try this on a image with transparency, and see if the result still have transparency or not. I am just not familiar with Magick++, only with Command line and the core Magick Library. | hexagon on black background | $mask->Composite(image=3D>$extraction_mask, compose=3D>'CopyOpacity'); | $mask->Set(page=3D>'0x0+0+0'); | | I tried also | $extraction_mask->Quantize(colors=3D>2, colorspace=3D>'Gray') | without success. | | Guenter | | G=FCnter Bachelier schrieb: | > Hello, | > | > I want to extract specific hexagonal regions with freestanding | > structures from images (p3m1 tiles and patterns) like | > | > http://www.vi-anec.de/Trance-Art/IM-examples/p3m1_extraction/extraction_t= | ype_1.jpg = | | > | > http://www.vi-anec.de/Trance-Art/IM-examples/p3m1_extraction/extraction_t= | ype_2.jpg = | | > | > | > I have tried to make this by drawing an extraction mask | > (with matte=3D>'false') and use compose=3D>'CopyOpacity' but the image = | | > remains unchanged after the operation. | > See PerlMagick code in | > | > http://www.vi-anec.de/Trance-Art/IM-examples/p3m1_extraction/Test_p3m1_ex= | traction.PLX = | Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]> ----------------------------------------------------------------------------- Just erotic. Nothing kinky. Its the difference between using a feather and using a chicken. --- Terry Pratchet, "Eric" ----------------------------------------------------------------------------- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
