Thanks. I have known something about GIMP Plug-in before. I plan to implement these effects using Plug-in. But I don't know how to implement the algorithm, any suggestions? Thanks in advance. Bam >A good place to start is the Writing a GIMP Plug-In documentation: > http://gimp-plug-ins.sourceforge.net/doc/Writing/ > >Once you get the basic idea how plug-ins work and come up with an >algorithm you wish to implement, it helps to take the source code from a >simple plug-in, i.e. blur, and replace the algorithm and plug-in >information with your own. > >- David > >On Thu, 1 Feb 2001, Image Processing wrote: > >> Hi, I am learning image proceesing nowadays. And I find that GIMP is really a nice place to visit. >> >> I have several questions. I like to implement some special effects by myself, such as 'Colored Pencil', 'Chalk & Charcoal' in Adobe Photoshop. But I don't know how to do. Could anybody give me some advice about how to do? Thanks a lot! >> >> Best Regards, >> >> Bam _____________________________________________ 263Commail£¬ÆóÒµµÄµç×ÓÓʼþר¼Ò http://mail.263.net