On Thu, 23 Jul 2009 18:28:35 +1000 (EST) "damien dunlop" <[email protected]> wrote:
| Suppose a multi-coloured RGB image contains areas of | a certain RGB value (within a small tolerance). | | Using ImageMagick, is it possible to change all other colours | to a background colour, leaving the image with just the specified | colour and the background colour. | Use a replace 'not' this color. -opaque replace this color +opaque replace NOT this color For example -fill white +opaque red that will replace anything not pure red to white Add a -fuzz factor if you want 'near pure red'. Anthony Thyssen ( System Programmer ) <[email protected]> ----------------------------------------------------------------------------- If we forget to respect our Great Earth Mother, She will withhold Her blessings, and no longer provide for us. -- Jean M. Auel "The Mammoth Hunters" ----------------------------------------------------------------------------- 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
