Re: banding in press profile
Re: banding in press profile
- Subject: Re: banding in press profile
- From: Chris Murphy <email@hidden>
- Date: Tue, 1 Jul 2003 15:16:07 -0600
On Tuesday, July 1, 2003, at 01:55 PM,
email@hidden wrote:
How can I track down what is introducing the banding? I'm
concerned as now I feel our proofs are falsely showing banding that
does
not occur in the final printed piece.
I would first narrow down what kinds of colors exhibit the banding the
worst, and try to create a gradient that exposes the banding especially
strong. Then you can use a random source profile to replace the current
one (for press) to see if it's the press profile introducing the
banding; and then try another conversion swapping out the destination
(proofer) with a random profile. By random - I mean pretty much
anything remotely reasonable (use SWOP v2 instead of your press profile
for example; and you could even use it as the destination profile for
the second test). The color won't be right, but it will tell you which
profile is causing the banding.
Then you have the task of finding out why that profile is causing the
banding. There, I'd look for a mismeasurement somewhere. Remeasure the
ECI target and compare to the original measurement data - you'll likely
find a patch or two that show huge delta E's.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.