Hi Jo; The sizes are correct as stated and read directly off the dt image info. The jpg file is larger by 10 lines and if I compare views at 100% I can actually see the lost edge on the raw file.
David On 13-08-26 01:22 AM, johannes hanika wrote: > On Sun, Aug 25, 2013 at 1:10 AM, David Vincent-Jones > <davi...@frontier.com>wrote: > >> I was trying to compare values in imported jpg and raw files and notice >> that when I exported both as jpg format they appear to be of differing >> size. >> >> JPG size ... 4752 x 3168 >> RAW size ... 4752 x 3158 >> > if you mean the other way around it's normal. the raw is a bit bigger than > the jpg. it has some 10-100 px in width and height more, to estimate black > levels and to do easy on-chip spatial filtering i would assume. the black > pixels we usually cut away very early (in rawspeed for example) and some of > the others are actually useful pixels if you go through the pain and make > your algorithms aware of the borders. > > -jo > > >> Looking at the files in dt this difference is also seen. Is this a Canon >> camera 'feature' or is this something in the dt system? >> >> David >> >> >> ------------------------------------------------------------------------------ >> Introducing Performance Central, a new site from SourceForge and >> AppDynamics. Performance Central is your source for news, insights, >> analysis and resources for efficient Application Performance Management. >> Visit us today! >> http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk >> _______________________________________________ >> darktable-devel mailing list >> darktable-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/darktable-devel >> ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ darktable-devel mailing list darktable-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-devel
