Hi Anthony, On http://www.imagemagick.org/Usage/photos/, in Photo Conversion Cookbook section you have two examples on converting photos to sketches -- "Childrens Color-In Images" & "Pencil Sketch".
Before going into these, maybe it is a good idea to first discuss convert's built-in -charcoal operator, just to make it a full story, because there might be people who don't know of the operator. Taken from http://www.ibm.com/developerworks/library/l-graf/?ca=dnt-428 The charcoal effect simulates a charcoal artist's impression of the image. $ convert -charcoal 2 input.jpg output.jpg Moreover, when I apply the Childrens Color-In Image method to a portrait photo, it did not work well. I know that the Childrens Color-In Image method was originated from a long discussion about Generating Coloring-In Pages on the IM Users Forum. So I'm thinking, let's try another algorithm. What I really like to see in the Photo Conversion Cookbook section, is an example for "Simplest Sketch", ie, convert the photo to a sketch that has bare minimum lines to represent the original photo. I found a very good algorithm from the gimp tutorials section. http://www.gimp.org/tutorials/Sketch_Effect/ To be honest, I was just stunned by how good the effect can be. I had been trying to achieve the same result in gimp long time ago using my limited understanding/knowledge but failed. Looking at how a machine can do in just several simples steps, I have to say I was amazed. I think that's a very effective algorithm, but I don't know how to do it in IM. Please help. thanks -- Tong (remove underscore(s) to reply) http://xpt.sf.net/techdocs/ http://xpt.sf.net/tools/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
