[Openicc] Questions about ... CM for Displays

[Chris Murphy]

On Feb 13, 2008, at 3:21 AM, Jan-Peter Homann wrote:

> 3) Complex documents are presented in a window. But the objects have
> different profiles
> This must be colormanagemed by the application itself (e.g. Layout
> application or PDF viewer)

On this. I agree, BUT with strong reservations on developers writing  
their own internal color management. Example, while Adobe ostensibly  
uses ACE across their applications, in reality each application has  
implemented color management differently and then pass the data to/ 
from ACE. This is not obvious to the user, except through the end  
result. It's possible to get upwards of 2-3% differences *per  
channel* in color conversions between the applications when using the  
exact same source/destination profiles and rendering intents and CMM.

Chris Murphy