Hi Lars, Good eye, yes! The Markesteijn demosaic needs a 6-pixel border before it can produce good results, and is actually destructive to that border pixels. A way to fix it would be for the code to copy a bilinear (or VNG) demosaic onto those outer edges of the image. I held off doing that due to the extra code involved, and figuring that 6 noisy pixels on each edge weren't that annoying. But I'm happy to put edge-fixing code in, to make the images better...
Dan On Tue, May 13, 2014, at 03:16 PM, Lars Kotthoff wrote: > Hi Dan, > > I've noticed an issue with the current code. Along the edges of the > frame, > there's a thin band of colour artifacts, as if the lowest quality > demosaicing > was applied to it. This band is only a few pixels wide, but seems to > appear > along all edges and both in darkroom mode and when exported. In darkroom > mode, > it appears on the edges of the displayed part of the image. That is, it > is > always visible on the edges of the screen regardless of whether zoomed in > or out > and what part of the image is shown. > > Cheers, > > Lars ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
