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AI Noise Reduction added spots?!

Explorer ,
Dec 24, 2023 Dec 24, 2023

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Photoshop 2024; Mac OS 14.2

 

Hi there, probably user error but this is what happened:

 

I spent what seemed like ages healing lots of sensor dust spots from a NEF file in ACR via the normal Healing Tool, then later I decided to use Reduce Noise with AI, that done I noticed spots in the sky when I was applying a tone curve, I investigated by Visualising Spots and was horrified to discover another rash of new spots that required me to heal them all again. What did I do wrong?

 

Many thanks

 

Simon

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Advocate ,
Dec 24, 2023 Dec 24, 2023

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Ideally Denoise should be applied first before any editing.

However, that said, you might be able to recover by first making a copy of your edited NEF file.

Open them both at the same time in ACR.

Revert the copy back to default settings - that will remove all healing and edits.

Apply denoise to that image.

Finally copy all edits from the original file to the newly created DNG file.

Hope that works for you.

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Explorer ,
Dec 24, 2023 Dec 24, 2023

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Many thanks Erik, I did wonder if it was an issue to do with the sequence with which I made the enhancements. Now I know I will apply that first.

 

Is there a tutorial on the ideal sequence of adjustments for RAW files in ACR?

 

Simon

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Advocate ,
Dec 24, 2023 Dec 24, 2023

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This article about Denoise might be helpful:

https://blog.adobe.com/en/publish/2023/04/18/denoise-demystified

As for the ideal sequence for editing RAW files, I think most folk develop their own preferences to be honest. Personally I don't find it makes any difference to the finished product whatever order I perform edits but Denoise first seems to be the order of the day. That does of course produces a new DNG file and the original file is left untouched.

Good Luck!

 

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