On Sun, Oct 06, 2013 at 03:30:19PM +0200, [email protected] wrote: > in Photoshop my QPCard 203 ( > http://www.qpcard.com/en_b2c/color-reference-cards/qpcard-203-book.html ) > reads: > > WB 4650 and tint 32 > How can I work with a color card and Darktable? > I cannot manually control Darktable only can use the slider? Its a bit > difficult using the slider to move it to exact 4650.
Try right clicking on the slider, then type 4650 and see what you get. > How can I add the tint 32? Darktable goes from 0.0 to 8 (so no 32 is > possible). Or is there a workarround for this? Hmm I don't know what scale photoshop uses, so it's a bit hard to work out the equivalent value. > When using the spot white balance selecting the middle grey on the QPcard > does not work, or do I need a white patch? No, anything between quite dark grey (almost black) and white should work. Are you drawing a square around a decent sized area? You probably want a fair few pixels to avoid variations in pixel colour due to noise, etc. Regards, Rob ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135031&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
