PHOTOSHOP - Using invert on 32bit file = corruption

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  • Updated 7 months ago
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Hi,

In most instances using invert (ctrl + i) causes banding and image corruption with a 32bit file. Especially if the file is an EXR with an alpha channel, applying this invert operation on an alpha channel will also cause corruption.
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KM

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Posted 3 years ago

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Chris Cox

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The invert adjustment doesn't work on 32 bit/channel documents, except on masks that have a defined range (0..1).
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KM

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Thanks Chris, but the problem is that PS still allows the tool even though it is not supported. Maybe it could throw up an error warning that it is not supported (32bit mode) to stop confusion for people like myself when performing the operation.
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Chris Cox

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The invert adjustment is disabled in 32 bit/channel documents when you target anything other than a layer mask. There is no additional error message needed because the operation isn't even available except in the special cases where it works (layer masks that have a defined range).

What version of Photoshop are you using where the Invert command is enabled on 32 bit/channel images?
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Alexey Bogomolov

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To invert  32bit image apply Levels modificator to the layer and change values of Output Levels to opposite values (e.x. 255,0)
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antonioloprete

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I need to invert a 32 bit layer from an exr multilayered image, but your method it doesn't work at all...