[darktable-dev] Re: clang vs. gcc: dramatic performance difference

2018-09-12 Thread Matthias Bodenbinder
Am 13.09.18 um 07:38 schrieb Matthias Bodenbinder: > I assume I am missing some significant compiler options for clang. But dont > know what that is. > Can somebody help me with that and tell me what I need to do to make the > clang binary faster? I found these messages with clang enabled: --

[darktable-dev] clang vs. gcc: dramatic performance difference

2018-09-12 Thread Matthias Bodenbinder
Hi, now that google announced that they are using clang for compiling chrome I wanted to give it a try with DT. I was mainly interested to see what the performance impact is for the DT binary when using clang. I simply edited build.sh like this to use clang: export CC=/usr/bin/clang export

Re: [darktable-dev] Code reviews requested : Profile gamma correction

2018-09-12 Thread Aurélien Pierre
Le 12/09/2018 à 12:59, rawfiner a écrit : > Hi Aurélien > > Fist, thank you for showing me this interesting video. > I just compiled your branch. > > My first question is, is it possible to find shift power slope values > that reproduce the result we had before with linear and gamma? > If yes, I

Re: [darktable-dev] Code reviews requested : Profile gamma correction

2018-09-12 Thread rawfiner
Sorry for the spelling mistake, didn't mean "Fist" but "First" My apologies cheers, rawfiner Le mer. 12 sept. 2018 à 18:59, rawfiner a écrit : > Hi Aurélien > > Fist, thank you for showing me this interesting video. > I just compiled your branch. > > My first question is, is it possible to find

Re: [darktable-dev] Code reviews requested : Profile gamma correction

2018-09-12 Thread rawfiner
Hi Aurélien Fist, thank you for showing me this interesting video. I just compiled your branch. My first question is, is it possible to find shift power slope values that reproduce the result we had before with linear and gamma? If yes, I think you should compute the new parameters values from

Re: [darktable-dev] Add more tags on Redmine

2018-09-12 Thread Pascal Obry
Hi Aurélien, > it makes sense, since pull requests and commits are on Github anyway. > But as it has been bought by Microsoft, I would rather have a > duplicate elsewhere as safety measure. Sure I understand, we can always move to GitLab if necessary. But this is a separate issue and a trivial

[darktable-dev] Code reviews requested : Profile gamma correction

2018-09-12 Thread Aurélien Pierre
Hi everyone, when working with color profiles, the main historic issue was the non-linearity of the sensors/films. Now, it is rather that the color profile is performed on a chart having 6-7 EV of dynamic range while modern cameras have 12-15 EV. Simple gamma corrections (invented for CRT

Re: [darktable-dev] support New nikon Z7

2018-09-12 Thread Germano Massullo
For information completeness: https://redmine.darktable.org/issues/12322 ___ darktable developer mailing list to unsubscribe send a mail to darktable-dev+unsubscr...@lists.darktable.org

Re: [darktable-dev] An algorithm to downscale raw data BEFORE demosaic by whatever scale factor

2018-09-12 Thread johannes hanika
nice! an interesting lot of work indeed :) the results look really promising. doesn't seem to do much on the sky, but the wood is cleaned up nicely. some colour noise seems to stick around at the edges, which is expected with nlm. yeah multi-scale is hard and costly with nlm. one of the reasons