Is there a Photoshop filter or plugin equivalent to GIMP’s Retinex?

Asked 2/24/2011

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I use GIMP’s Retinex feature to recover shadow detail and improve underexposed images. Is there a Photoshop filter or plugin that matches it closely, or is there no direct equivalent?

photoshop plugins post-processing retinex gimp

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

15y ago

2 Answers

I just made a retinex filter for Photoshop and similar:

www.russellcottrell.com/photo/Retinex.asp

It is a little different from the Gimp/ImageJ plugins. I tried to make it easier to understand, and included offset as well as gain. The “Level” control seems to be aimed at extracting detail from CT scans and so forth, not general photography, so I simplified it as well.

There are more filters there as well if you are interested . . . .

—Russell

Originally by user46256. Source · Licensed CC BY-SA 4.0

user46256

10y ago

AI Answer

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There doesn’t appear to be an exact Photoshop equivalent to GIMP’s Retinex filter. Based on the answers, a few Photoshop plugins claim similar results, but they are not the same as GIMP’s implementation.

One community member shared a custom Retinex filter for Photoshop-compatible hosts, noting that it differs somewhat from the GIMP/ImageJ versions but was designed to be simpler to understand and use. So if you want Retinex-like processing in Photoshop, that may be the closest option mentioned.

In short: no exact match, but there are approximate alternatives and at least one custom Photoshop-compatible Retinex filter available.

Is there a Photoshop filter or plugin equivalent to GIMP’s Retinex?

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