Photoshop CC 2015.1: HSL layer in 16-bit LAB, colour display error

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  • Updated 1 year ago
Scenario: A 16-bit LAB image, an HSL layer, alter a colour.
The display of this altered colour changes when the zoom level exceeds 63.7%.
This does not happen in any other colour space, or if the LAB image is in 8 bit, or if the image is flattened. En-/disabling GPU support makes no difference. Formats checked: tif, jpg, dng.



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Andreas Lindberg

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Posted 2 years ago

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Chris Cox

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Do you mean a Hue/Saturation layer? Or a smart filter with the HSB/HSL filter?
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Andreas Lindberg

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Yes, a Hue/Saturation layer.
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Chris Cox

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So far I can't reproduce this.

Which OS version are you using?
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Andreas Lindberg

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Windows 7/64. GPU is a Radeon HD 7770, drivers are up to date.
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atelier-3021

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Still have the bug?
On my PsCC 2017 it disappeared
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Andreas Lindberg

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No, it's fixed.
If I remember correctly, since version 2015.5.
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atelier-3021

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It seems I didn't check :)
Thank you
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atelier-3021

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Same here

I think it's even related to my other issue I already talked about
here https://forums.adobe.com/message/8458280#8458280
related to Hue/Sat and Curves panels
Luigi
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eartho

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I can confirm this bug. 

Open image as 16bit Lab, add hue/sat adj layer, scrubby zoom in and out.

Result: the image changes color when zoomed above/below 63.7%.

OSX.10.5 / Nvidia 780 / PS2015.1.2
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Andreas Lindberg

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Well, either I made a mistake in finding that the bug was gone, or it's back.
Either way, what I wrote in my first post is still the case in CC version 2017.0.1.
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atelier-3021

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the bug is still there. my scrubby zoom stucks a bit the first time I go over the 60something%.
I cannot reproduce the bug all the time. sometimes it appears, sometimes not. first I though it's related to rasterize/not rasterize, but it doesn't matter.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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I'm not able to reproduce offhand on macOS 10.11.6 with CC 2017.0.1. Sounds like the issue is either intermittent, requires more steps, or file specific.

Any clues to help consistently reproduce would be helpful. If you have a specific file that reproduces consistently, post on CC or dropbox and provide a URL.
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Andreas Lindberg

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Works every time for me with 2017.0.1 on Win 7x64 SP1.
- open any image (tested with jpg, tif, psd)
- change mode to 16 bit Lab
- add Hue/Saturation layer
- choose one colour channel and change hue (increase saturation for visibility)
- when you zoom past 63.7% you get a change in colour
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atelier-3021

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Here too: I tested with master, but if I choose a range of colors (reds, yellows, greens, etc.), the change of color appears every time.
updated win10x64