Greg Taylor wrote: > Greetings, > > I'm not sure if this is the right place to probe for interest, but I > figured I'd give it a shot. > > Recently, a project I undertook at work required us to convert between > the various CIE color spaces (XYZ, Lab, LCH, Luv, etc.). I looked long > and hard but didn't find any Python library that did this, I was able to > find JavaScript and C-based implementations, but that's about it. For a > good example of the kinds of conversions I am referring to, see: > http://brucelindbloom.com/ColorCalculator.html > > This is likely only to interest those in the Graphic Communications > industry (notably printers and anyone else having to deal with color > science), but I'm curious to see if anyone out there in the Python > community would have any use for a color conversion library. If I've > missed an existing implementation, feel free to point it my way as well.
I have some here (apologies for the long URL): http://www.enthought.com/~rkern/cgi-bin/hgwebdir.cgi/colormap_explorer/file/095eaf64fd9f/colormap_explorer/conversion.py I haven't attached a license text to it, yet, but I'm making it available under a BSD license. Ping me if you need the real text attached to it. It requires numpy and was adapted from an earlier version in scipy (which has a few more colorspaces I wasn't interested in). http://svn.scipy.org/svn/scipy/trunk/Lib/sandbox/image/color.py I've also wrapped the LCMS library for that application if that interests you. It doesn't do much more than what I needed, though. I wrapped it myself instead of using the standard SWIG bindings for it so I could pass in numpy arrays. http://www.enthought.com/~rkern/cgi-bin/hgwebdir.cgi/lcms Let me know if there is anything I can do to make this code more useful to you. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
