Thank you all for your responses. My project is under RH linux, using C++. This is really the first part of my term project, so I just need a quick and dirty piece of codes to handle this. To the people who have suggested jpeblib, what keywords or procedures I should look for in the jpeg manual? I skimmed through the manual the couldn't find a specific section that details on how to convert an image to a RGB-array. Thanks again. To Marc, I've just tried to "convert" a .jpg file to a .rgb file, as you suggested. (actually I redirected it to a new file). > convert picture.jpg -interlace plane rgb:- the output is a binary file so I can't still read it into an arry in which each pixel is a RGB vector. Could you elaborate on this? Thanks for your time. Vinhthuy Phan
