Re: ICC and Colorspaces
Re: ICC and Colorspaces
- Subject: Re: ICC and Colorspaces
- From: "Russell Proulx" <email@hidden>
- Date: Thu, 7 Dec 2000 19:30:21 -0500
- Priority: normal
I picked up an output test from the Fuji Frontier today using a WiziWYG
profile and the results were close enough to be scary. I must have done
something wrong <g>
I also output a revised test on a Pictro4000 and it also looks pretty good.
Unfortunately the tweak I used to pull the green out of the first test also
lowered the maximum black. That's what has me investigating why the
black went too light even though it looked black on my screen.
I'm still trying to get a handle on the working RBG colorspace's impact (if
any) on a profile to profile conversion from RGB to a print profile. In
Photoshop 6 if I have an image created in let's say sRGB and then
convert it via "Profile to Profile" to another RGB colorspace there's no
apparent change in the image onscreen. Yet everything changes
onscreen if I choose the "assign" a different RGB profile to the same
image.
After doing a profile to profile conversion from my RGB space to a printer
profile the image changes somewhat but can be displayed normally by
setting the Soft Proof to the printer profile.
The eyedropper readings of what used to be 0R0G0B (100k) now read as
something that's not black even though total black it what's presented
onscreen. Curiously the Grayscale equivalent is shown to still be 100k
even though the RGB value is 26,28,17 (after conversion to the print
profile).
I'm struggling to make sense of what's going on....
Does the screen RGB colorspace get used at all in the profile to profile
conversion or is it my monitors custom profile only that's used?
Russell Proulx
Photographer
Montreal, CANADA