Brightness/Contrast Option Grayed out

Explorer ,
Jun 22, 2022 Jun 22, 2022

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I have a TIFF file uploaded to Photoshop. I'm trying to adjust the brightness/contrast via Image>Adjustments, and via a new adjustment layer, but that option brightness/contrast is grayed out. Levels and Exposure work. Any ideas why?


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Adobe Community Professional ,
Jun 22, 2022 Jun 22, 2022

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What are the image’s Color Mode and bit depth? 

Could you please post screenshots with the pertinent Panels (Toolbar, Layers, Options Bar, …) visible? 

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Explorer ,
Jun 22, 2022 Jun 22, 2022

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Don't know the bit depth is 96.

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Adobe Community Professional ,
Jun 22, 2022 Jun 22, 2022

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I'll bet you have a 32-bit document here which is why they are grayed out. Go into menu Image>Mode; what does it show for bit depth? If 32-bit, that's why. You'll have to convert to 16-bit (or 8) to use those adjustments.


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Explorer ,
Jun 22, 2022 Jun 22, 2022

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Yep, 32-bit. What's the best way to convert to 16 if I can't change the original rendering to 16?

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Adobe Community Professional ,
Jun 22, 2022 Jun 22, 2022

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Just use that Mode menu option and select 16-bit. 


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Explorer ,
Jun 22, 2022 Jun 22, 2022

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It gave me a funky image. Will play with it.

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Adobe Community Professional ,
Jun 22, 2022 Jun 22, 2022

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Image > Mode > 16 Bits/Channel

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Adobe Community Professional ,
Jun 22, 2022 Jun 22, 2022

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Could you please post a meaningful screenshot? 

 

Edit: Ah, I assume you mean RGB 32bit. 

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