Hi, Am 07.11.2017 um 18:05 schrieb Sarge Borsch:
Looks like there's a superior alternative to bilateral filter which produces less gradient reversal artifacts when used for tone mapping http://kaiminghe.com/publications/eccv10guidedfilter.pdf http://kaiminghe.com/eccv10/index.html I'm no good in maths but I guess it had similar complexity to bilateral filter and the figures in the "paper" look tempting.
actually this guided filter is already implemented in Darktable. More precisely it is part of the haze removal module. The guided filter is not only useful for tone mapping or the mentioned haze removal filter, it has many more potential use cases. Thus, writing an implementation of the guided filter that is suitable for other purposes is on my to-do list but I did not had time to do so until now. Such an implementation should also include an OpenCL code path.
An other possible application was mentioned earlier on this list: https://www.mail-archive.com/darktable-dev@lists.darktable.org/msg02035.html Regards, Heiko -- -- Number Crunch Blog @ https://www.numbercrunch.de -- Cluster Computing @ http://www.clustercomputing.de -- Professional @ https://www.mpi-hd.mpg.de/personalhomes/bauke -- Social Networking @ https://www.researchgate.net/profile/Heiko_Bauke ___________________________________________________________________________ darktable developer mailing list to unsubscribe send a mail to darktable-dev+unsubscr...@lists.darktable.org
