QTR-Quadtone RIP

ferdinand_paris wrote:
> --- In QuadtoneRIP@yahoogroups.com, "Roy Harrington" <roy@...> wrote:
>> The "big dMax loss" is just one symptom that happens to be most 
>> visible. .... How we actually know whether any profile is done 
>> "correctly"?   I admit the dMax issue shows the problem, but other 
>> color profiles "could" be done wrong and we might not know. ....  
>> It's very weird to me that different CMSs with exactly the same 
>> input can produce different results.
> 
> I am prepared to accept that different CMSs will produce slightly
> different profile conversions.  While it would be nice to think of
> conversions as being something that should be mathematically precise,
> it sounds to me (as a non-expert) that in practice it's a little like
> the differences between RAW converters - there are matters of
> judgement involved.  But large differences surely indicate that
> something is wrong somewhere.  

I will check the 3 color engines that I have in Photoshop: 
ACE, ICM and Kodaks's CMM to see whether that gives 
different results.


-- 
Met vriendelijke groeten,  Ernst


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