Fully saturated colors - mis mapped?
Fully saturated colors - mis mapped?
- Subject: Fully saturated colors - mis mapped?
- From: email@hidden (Scott Kilbourne)
- Date: Tue, 12 Jun 2001 08:06:57 -0400
We are having an issue implementing color management in our graphics production shop.We do scanning, retouching, digital printing, slides, etc. with a variety of hardware including a Fuji Pictrography 4000, HP 2500CP inkjet, etc. The problem:
Creating profiles for our scanners and monitors - no problems. Using ProfileMaker 3.5, however, we get some unexpected results with our printer profiles. All our scanned material looks great and matches well when pushed through the printer profiles - Except when we drop in some fully saturated colors. I've been using a scan of the IT8 target that looks great. With AdobeRGB as the working space, I've added some color patches along the bottom of fully saturated
RGBCMY (255,0,0 0,255,0 etc.) When I send this target out to a printer through a profile or just do a convert to profile in PS6 (Mac) everything looks great EXCEPT the satruated patched which get pushed to values of 255,80,70 as an example. When that goes to the printer, my formerly brilliant Fuji red goes to a muddy yech red-orange.
Now check me on this. If I'm working in AdobeRGB (big gamut) and create a color on the outer edge of the gamut (a fully saturated red, for example) shouldn't that color map through a profile to the outer edge of the destination gamut? IOW, If I start with AdobeRGB 255,0,0 shouldn't I end up with Fuji 255,0,0? If I don't then I can't use the full gamut of the Fuji when printing.
That said, everything else seems to work and IQueue works well. I just don't want the vector art screwed up when we push through profiles.
-Scott Kilbourne
Wake Forest University School of Medicine