On Thursday 20 Jan 2005 7:35 pm, Dmitri Pissarenko wrote:
Hello!
I need to write a function in Haskell, which
1) reads a greyscale image (for instance, in JPEG, PNG or the like) and
2) transforms it into a n X m matrix A, where Aij contains an integer value (in the range 0 to 255). That integer value is zero for a completely black pixel, 255 for a completely white pixel and lies between zero and 255 for a grey pixel.
In my program, I need ONLY to read an image and to transform it into such matrix.
Which graphics library can you recommend, if no other image manipulation operations are required?
These might help.. http://homepages.nildram.co.uk/~ahey/HLibs/Multimedia.SDL.Core/ http://homepages.nildram.co.uk/~ahey/HLibs/Multimedia.SDL.Image/ What you'll get is an SDL surface (C data structure), so you'll have to write some code to read it if you want a Haskell array. Regards -- Adrian Hey