Re: Colormanagement: Bugs, bugs, bugs ... :-(
Re: Colormanagement: Bugs, bugs, bugs ... :-(
- Subject: Re: Colormanagement: Bugs, bugs, bugs ... :-(
- From: Chris Cox <email@hidden>
- Date: Mon, 31 Jan 2011 12:20:53 -0800
- Acceptlanguage: en-US
- Thread-topic: Colormanagement: Bugs, bugs, bugs ... :-(
>> 1.) Photoshop's Color Settings Panel has serious bugs. Sometimes the
>> panel neither reflects Photoshop's actual settings nor the
>> synchronization state correctly. As soon as one starts to play with
>> conversion options (e.g. toggles compensate for scene-referred profiles
>> and black point compensation or changes the rendering intent), Photoshop
>> behaves more or less erratic. It can happen that Photoshop ends up in a
>> state where neither the display nor the results are correct or where the
>> display is correct, but the Lab values in the info panel are wrong.
>> These nasty bugs should be fixed as soon as possible, the more so as
>> they date back at least until CS4.
Odd that nobody has filed a reproduceable bug like that with Photoshop.
We've seen claims like that before, but every time it was a misunderstanding
on the customer's part.
>>
>> 2.) Some profiles seem to trigger Photoshop's
>> scene-referred-to-output-referred compensation by mistake.
The profile has to be marked as scene referred before ACE will treat it as
scene referred.
We have seen several calibration tools incorrectly mark profiles as being
scene referred when they were not.
>> 3.) Even though the "compensate for scene-referred profiles" setting
>> seems to be part of the Color Settings File and hence should be
>> synchronized across all CS applications, it can cause inconsistent
>> results. Either InDesign and Acrobat simply ignore the setting or they
>> are not "bug-compatible" with Photoshop.
Only Photoshop and After Effects use that option, as documented.
>>
>> 4.) The PDF/X-4 Preset in CS5 is buggy: The embedded profile is based on
>> FOGRA39, but the Output Condition Identifier is "FOGRA27".
Again, file a bug so we can fix it.
If you don't tell us about bugs, they won't get fixed.
Chris
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