I'm trying to repeat a Blend If 'Underlying Layer' blending with a mask. I have a background layer with some shapes and an orange layer:
I set the dark levels of Blend If to 90/130:
I've tried two ways: using levels (didn't work, especially for cases when the little slider thing isn't separated) and using a gradient map. For the gradient map I've set markers to be at
90/255 ~ 35% and
130/255 ~ 51%
The resulting mask:
However the result is slightly more transparent (there's a visible seam between two versions):
That could be caused by the fact that gradient map can only use integer locations in 0..100 range while the Blend If mask uses a 0..255 range: the actual locations should've been
50.98%. Or maybe I've made a mistake with something. I wonder if anyone has any suggestions on how to repeat the result of this Blend If operation so that it'd be completely the same.
Here's the .psd if anyone wants to try.