On 03/06/2010 12:58 PM, Sven Neumann wrote: > Hi, > > On Fri, 2010-03-05 at 07:34 +0000, Omari Stephens wrote: > >> Finally, to respond to your question on the bug, we need some way to >> embed an actual sRGB profile into an image. > > Can't we just embed the lcms built-in sRGB profile? That sounds like a > totally straight-forward solution. But I might have missed something. Is > there a particular reason why we need the profile to exist as a file? So, you're right; I had dismissed this possibility out-of-hand without investigating sufficiently. Having poked around the lcms code a bit, I don't think this option is feasible. Basically, lcms generates an RGB profile with the sRGB primaries, transfer functions (aka "gamma curve"), and whitepoint; for the curious, this happens in cmsCreate_sRGBProfile() in cmsvirt.c . For one, I'm not sure if this is all there is to a "real" sRGB profile (although it certainly might be; thoughts, Graeme?). Secondly, even if that's all there is to it, there doesn't seem to be a way to get a profile _out_ of lcms. The prototypes for profile input/output are limited to cmsOpenProfileFromFile(), cmsOpenProfileFromMem(), and cmsCloseProfile(). Nothing about exporting a profile in any way. --xsdg _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
