GNOME Bugzilla – Bug 795509
Possible speedup for mantiuk06
Last modified: 2018-05-22 12:22:40 UTC
As I made some speedups for Mantiuk06 tone mapping operator in Luminance HDR, a user on pixls.us asked me whether I can help to get this speedups also into GEGL. If there is an interest in doing that, let me know. I can give some hints then. Especially this part https://git.gnome.org/browse/gegl/tree/operations/common/mantiuk06.c#n1492 , which currently uses sort, can be implemented without a sort and also multithreaded. https://github.com/LuminanceHDR/LuminanceHDR/blob/master/src/Libpfs/rt_algo.cpp#L37 That gave a nice speedup for mantiuk06 and fattal tone mapping operators in Luminance HDR For reference: https://discuss.pixls.us/t/speedup-for-mantiuk08/7398/5 https://github.com/LuminanceHDR/LuminanceHDR/pull/106
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