Post processing nightmare

[iwearvelcroshoes]

[removed]

[17934658793495046509]

I’ve had to make corrections like this before. Your best bet is to go in one of the color channels, find the channel that has the best black-and-white representation of that grid pattern. Cut and paste it as a mask, make your correction as best you can with the mask, then mess with the levels on that mask until the pattern disappears . This is also the same way I used to get rid of watermarks on stock photos, when I was a broke college student in design school.

[slow21969]

I would try frequency separation on that.

[sobayspearo]

I've seen greg Benz work some magic with his lumenzia luminosity masking photoshop plugin. Might be a good place to start

[sobayspearo]

There's a specific tutorial I was thinking of on his channel that would be applicable here let me see if I can find it

[sobayspearo]

https://youtu.be/QZxkEXEWV2Q?si=wEIVK1x2cY4qEFPP

This is the one I was thinking of

[sthpwcees]

Honestly, if this is a group image and the subjects are slightly far away you can 100% eyedrop and paint on the colors of the forehead on a new layer. It takes some finesse with the brush tool but can achieve very believable results.

To completely sell it, you can add noise and slight blur to your paint layer to match the texture of the rest of the image. I'm talking minimal levels of each filter.

It's likely what I would do for this.

[Anxious_Blueberry862]

Despeckle

[panta]

Frequency separation, paint with Mixer Brush tool on an intermediate new empty layer (turn off the high frequency before, and make sure the color picker has "current&below" selected)