Archived posting to the Leica Users Group, 2006/12/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Tina, Walt, Photoshop can! Well very nearly. Try Hue/Saturation - select red and shift the hue to around +30, then go to magenta and shift it to the same value, play about with the magenta saturation until it looks right (about + 8) . It gets close to the "true" Canon colours (with the exception of the yellow fringe on the flag). There is a slight residual yellowish cast that shouldn't be too hard to get rid of. This does however imply that something is VERY much off track in the colour spectrum. To those more expert out there - how do you convert these values to a custom PS Filter? Douglas Walt Johnson wrote: > Tina > > I though Photoshop could correct just about any color shift? I was > trying with the Underwater filter and it seemed to help. > > > Walt > > Tina Manley wrote: > >> At 08:26 AM 12/21/2006, you wrote: >> >>> Please note that changing WB after the fact cannot fix the IR >>> problems--the IR contamination shifts the colors of objects >>> differently, depending on how much they reflect IR. Synthetic black >>> goes to magenta. Synthetic green goes to gray, and so forth. >>> >>> Mark Davison >> >> >> Right, Mark! I've discovered that no amount of color balancing in >> photoshop can correct the strange colors. Capture One seems to do >> the best job with the Leica DNG files but it's still way off. I hope >> the IR filters will correct this and am encouraged to find out that >> they don't cut the light any. >> >> Tina >> >> Tina Manley, ASMP, NPPA >> http://www.tinamanley.com >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >