What you are looking at and calling "a public interface" most certainly
is NOT.
Its deep (very deep) inside the JDK implementation in a place
applications are not
supposed to even know about and definitely cannot depend upon to even exist.
The only APIs at your disposal are those listed here :-
http://docs.oracle.com/javase/7/docs/api/
I am not sure if you should read too much into the comment as being an
exhaustive list and in any case I think its only saying what would happen
if you did not explicitly request absolute colorimetric.
http://docs.oracle.com/javase/7/docs/api/java/awt/color/ICC_Profile.html#icAbsoluteColorimetric
I'd love to point you at some related tests but I can't locate anything.
-phil.
On 7/9/2012 12:46 AM, Claudio Wilmanns wrote:
Hi there,
I’d like to know to which extent lcms color management has been
implemented.
In particular I’m interested in the use of the absolute colorimetric
rendering intent for soft-proofing of CMYK data.
- is this possible?
- how can this be achieved?
Any help or hints are appreciated.
Here are my findings so far.
The public ColorTransform API interface
(http://www.docjar.com/html/api/sun/java2d/cmm/ColorTransform.java.html)
lists the following for the renderType parameter:
public interface ColorTransform {
public int Any = -1;/* any rendering type, whichever is
available */
/* search order is icPerceptual,
icRelativeColorimetric, icSaturation */
/* Transform types */
...
}
Given the above information I assume that absolute colorimetric rendering
is not possible as it is not one of the documented renderTypes.
On the other hand, a complete lcms implementation lets me suggest that
using the renderType „3“ stands for „icAbsoluteColorimetric“ but is only
undocumented. Can somebody confirm this?
Is there some easy to use test code available so I can perform tests by
myself?
Best Regards
Claudio
