Re: 10.6.7
Re: 10.6.7
- Subject: Re: 10.6.7
- From: Tom Lianza <email@hidden>
- Date: Wed, 23 Mar 2011 09:23:45 -0400
- Thread-topic: 10.6.7
That is completely correct. We (X-rite) have posted this issue (bug) with
Apple. There seems to be an issue with the LUT definition and scaling. The
ICC spec is not fully clear and we (ICC) did not, to the best of my
knowledge, ever provide an official reference profile for testing, so let's
not beat up Apple on this issue. We (ICC and X-rite) are looking at
implementation testing tools right now and some are currently under
development.
Thanks,
Tom Lianza
Co Chair ICC
Director of Advanced Product Development X-rite.
On 3/23/11 9:07 AM, "Iliah Borg" <email@hidden> wrote:
> Dear Richard,
>
>> Can you explain exactly what you are doing to see this?
>
> I'm getting a Lab TIFF, converting it to an ICC4 profile with Lstar tone curve
> and doing a save in Photoshop and close the file. Next, I open the icc4 file I
> just saved in Photoshop, convert it back to Lab and do another save. All
> three, initial Lab, icc4 RGB, and roundtrip to Lab files, look same in
> Photoshop. First and third look same in the Preview. The RGB icc4 Lstar file
> looks very different in the Preview. It looks like the issue is centred around
> profiles that are following icc4 specifications.
>
> --
> Iliah Borg
> email@hidden
>
>
>
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| | >Re: 10.6.7 (From: Iliah Borg <email@hidden>) |