Re: Possible ColorSync discontinuity bug introduced in OS
Re: Possible ColorSync discontinuity bug introduced in OS
- Subject: Re: Possible ColorSync discontinuity bug introduced in OS
- From: Andrew Rodney via colorsync-users <email@hidden>
- Date: Thu, 15 Aug 2019 12:34:42 -0600
At least Apple Photos appears to preview a gradient correctly and matches
Photoshop, Lightroom, GraphicConverter 9 to name three. The Preview and Safari
team need to talk to the Photos team because at least one Apple application is
correctly dealing with this bug.
What none of the Apple applications appear to do is utilize a full 10-bit
display path like Photoshop which is sad. I see slight banding on images
designed to test this path, none in Photoshop (or GraphicConverter 9).
Andrew Rodney
http://www.digitaldog.net/
> On Aug 15, 2019, at 9:37 AM, Andrew Rodney via colorsync-users
> <email@hidden> wrote:
>
>
> Yes, I do see this in Apple Preview viewing a 21 step wedge TIFF using Adobe
> RGB (1998) as you advise. Safari and ColorSync Utility too.
> I don't see it in Photoshop CC (latest version). I don't see it in Lightroom
> 8.4 in either Library or Develop modules. And this isn't limited to Adobe
> applications, GraphicConverter 9 matches Photoshop and Lightroom.
> So yes, there's a bug but it's not affecting all applications equally. It
> does affect all Apple app's I've tried and it suggests Apple needs better
> beta testers like many who post here.
>
> Andrew Rodney
> http://www.digitaldog.net/
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