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Message

Re: Comparing patch readings

2006-10-10 by bwinkjet

Hi David,

Yes, I do read each patch set twice.  Could buy more expensive 
equipment with readers and averaging included, but by reading 2x and 
comparing I am pretty certain I can get a good profile.  (I have yet 
to find a significant difference however) (Also still have to add 6-
12 Blue on the sliders for most papers to get the yellow tint under 
control)

On a different topic.  Black point compensation:  I have researched 
this on the web and still get conflicting answers.  Some say BPC 
forces profile to deepest black and then maps everything above it.  
You alluded to the fact you set the black point with the profile you 
create.  Should you use BPC with relative colorimetric or perceptual 
rendering?  The goal being best dmax and good shadow separation.

Thanks,

Paul

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:
>
> 
> In a message dated 10/7/06 10:52:21 AM, bwinkjet@... writes:
> 
> 
> > 
> > Appreciate your efforts.  Where might I download this.  I was 
hoping
> > ColorVision might include something like this in their software.
> > 
> 
> We certainly would consider it; but it requires reading everything 
twice. 
> Generally, reading it carefully once is a quicker, more effective 
solution. How 
> is it that some people make so many reading mistakes? I have to be 
carrying on 
> a pretty distracting conversation at the same time I'm measuring to 
get any 
> errors at all...
> 
> C. David Tobie
> Product Technology Manager
> ColorVision Business Division
> DataColor Inc.
> CDTobie@...
> www.colorvision.com
>

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