Little AutoAlign / Resize bug

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  • Updated 5 years ago
I've just noticed a little bug with the resize in Align Images:

Using Photoshop CC 64bit Windows 8.1

When AutoAligning two 16bit ProPhoto TIFF files together, I notice that the file which has been resized has little grid-like transparent lines visible in the dark areas of the image when viewed at 100% or greater. In order to see this, the layers below must all be turned off (the lines are slightly transparent). Is this a bug and can it be fixed? I hope so, and please no PixelPeeper comments, I'm planning to print very large so I must proof the image at 100%.

Cheers,
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jeremy tressler

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Posted 5 years ago

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jeremy tressler

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Hi All,

I just discovered that the Auto-Align artifacts described in the above image disappear once the image is flattened so it appears to be a display anomaly only.
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Chris Cox

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It sounds a bit like an old GPU driver bug that we saw a few years ago. 16 bit/channel images had the low bits amplified somehow, and small 1 bit differences showed up when drawing to the display.