Re: Color Corrections at a RIP?
Re: Color Corrections at a RIP?
- Subject: Re: Color Corrections at a RIP?
- From: Douglas Rhiner <email@hidden>
- Date: Fri, 23 Jul 2004 09:13:30 -0700
>
Care to tell me what you have in mind?
Roger,
It's nothing earth shattering...just what I thought were 2 simple
questions has got me full of questions now.
Im trying to figure out if I'm screwing myself by following an early
binding workflow for some of my images. Converting to and adjusting in
the output space of our Roland FJ-500 8-color.
And if PhotoshopCS is accurately "screen proofing" when a profile for
our printer is selected.
I've been playing with converting to and adjusting in the output
profile space for our Roland 8-color. Then printing via Roland
ColorChoice RIP, with the option to perform color correction OFF.
When I compare an RGB image that was sent via RIP with color correction
and the same image that was converted to output space in Photoshop,
then sent via RIP with NO color correction there is a slight difference
in the images. Sometimes the RGB file looks better, sometimes the file
in output space.
ColorChoice uses a proprietary CMM, I use Apple CMM. Could the
differences in the 2 images I'm seeing be a result of the differences
in the CMM? Or is it a result of clipping or the likes from conversion
to output space in Photoshop?
What is interesting is that when I do convert to output space, the file
becomes a CMYK file.
Does this mean that the output color space is not truly a 8 color
profile, but a large gamut CMYK profile that gets separated into
8-channels at the RIP?
Thanks for any help!!!!!
Douglas Rhiner
Technical Director / Owner
HIGH MOUNTAIN IMAGERY / IMAGE TAHOE / TAHOE VR
(530) 546-0413 [office]
(530) 362-0047 [cell]
http://www.hmitahoe.com
http://www.imagetahoe.com
http://www.tahoevr.com
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