Hi, currently the GEGL operations in GIMP are very slow. I have done some basic profiling yesterday and it appears that the main problem is the conversion from floating point to 8bit. Here is where the most time is being spent. So it doesn't really make much sense to optimize the operations in GIMP or the point filters in GEGL. We need to look at the babl conversions first. Here's an interesting paper that outlines how to do conversion from linear light floating point image data to 8-bit sRGB using a relatively small lookup table: http://mysite.verizon.net/spitzak/conversion/sketches_0265.pdf That is exactly the conversion that the tile sink executes. It would help us a lot if someone could implement this. The file extensions/gimp-8bit.c would probably be the right place to put this code. I am afraid I am not going to find time for this. Is anyone else interested in working on this? Sven _______________________________________________ Gegl-developer mailing list Gegl-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gegl-developer
