The characteristics of certain operations such as USM are well documented. Observe what happens after an unsharp operation of a black line whose central pixel is 1:
gmic (1) r 100,1,1,1,0,0,.5,.5 +unsharp 2 dg 690 nm before,after out_ png
The characteristics of certain operations such as USM are well documented. Observe what happens after an unsharp operation of a black line whose central pixel is 1:
gmic (1) r 100,1,1,1,0,0,.5,.5 +unsharp 2 dg 690 nm before,after out_ png