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Bryan765

: Mask Gray in Photoshop I want to make everything that is 50% Gray in Photoshop trasnaprent. Black and White should be 100%, but all in the middle transparent. Let's compare these to images to

@Bryan765

Posted in: #AdobePhotoshop #Mask #Transparency

I want to make everything that is 50% Gray in Photoshop trasnaprent.
Black and White should be 100%, but all in the middle transparent.

Let's compare these to images to demonstrate:

Start:



Goal:



Yes the checkerboard is part of the image in order to illustrate which effect I want to accomplish

I would like to do it mathematically exact, rather than faking it.

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@Ogunnowo857

I've made a video showing this very thing for another question, here it is at the relevant starting point:


Going off your image:


Middle Gray is 128, 128, 128
1 stop Lighter is 191, 191, 191
1 stop Darker is 64, 64, 64


So adjust the Blend If slider accordingly:





If you want it to look more like your "Goal" though it's not actually only removing 50% than adjust the sliders to your liking.

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