As a quick correction, gegl's gaussian blur doesn't operate in scRGB, but rather in babl's linear premultiplied sRGB-primary space (RaGaBaA float).
babl doesn't really have scRGB formats, although some of the formats resemble some of the scRGB formats. On Thu, Dec 5, 2013 at 2:08 PM, Teo Mazars <[email protected]> wrote: > Hi, > > I have seen the comparison between the old (from gimp 2.8) and the new > gaussian blur. I did not have a look at 2.8's implementation yet, but one of > the main difference, is that the new implementation works in scRGB instead of > sRGB in GIMP 2.8. > > I don't know if you were aware about that. I personally would still let the > possibility to make it work in both sRGB and scRGB, depending on user's need. > Both behavior are useful. But it's still under discussion. > > I completely forgot that until now, but Massimo worked on Gaussian-Blur some > times ago, and his work is now in operations/workshop (you have to pass > --enable-workshop to autogen to build them). This implementation should > replace the current implementation at some point, but the behavior is > equivalent to the current implementation. I mean all the work you did still > applies on the new implementation. The main thing that prevents the > replacement is that the case with std-dev < 0.5 is not implemented. > > Among all improvements: Waaay faster, even with very large std-dev, it allows > setting how edges are handled and finally it fixes the "vertical streaks" bug > you were seeing with large std-dev. > > I don't answer to the rest because I don't know or I did not though about it > yet. Though, we will need to find the equivalent conversion between the 2.8 > gblur and GEGL, because 2.10 keeps api compatibility with 2.8 and that > includes that all filters should be have the same given the same set of input > parameter from the api point of view (that is, not necesserly in the ui). > > Regards, > > Téo > _______________________________________________ > gimp-developer-list mailing list > List address: [email protected] > List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list _______________________________________________ gimp-developer-list mailing list List address: [email protected] List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list
