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Index last updated: 2026-04-28 23:18 UTC

Message

Re: Black Point Compensation

2008-08-11 by canvaspic

A huge thanks to the very knowledgeable people who took the time to
reply. I intend to try all your suggestions including using the
saturation intent and proofing using the watercolor media setting...
thanks.
David has been looking in detail at my measurements and passing on his
knowledge ....Kudos. 

For those interested. I posted crops from an image, a screen grab from
the softproof and a scan of the printed canvas, here:
http://www.flickr.com/photos/29419644@N07/sets/72157606653047144

I have exaggerated the clipping on the softproof so you can see the
effect. 
The canvas is "Breathing Color's, Chromata White(tm).


Since I posted, I have tried a number of test strips with the printer,
including a stepwedge from RGB 0:0:0  to 34:34:34. I am happy that the
printer doesnt have a tipping point where the blacks clip or block. So
I think it is down to the way that the profile interacts with
photoshop/qimage. With that knowledge ...I can avoid clipping by
shifting the levels in photoshop until blocks dissapear. Not ideal
...but a solution for now.

I will reproof with the watercolor media setting next. I will update
with any findings.


Thanks ....ed.

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