I went recently in the fenestrelle fortress, Italy.
I’ve took mainly .DNG file photos with the smartphone but I’ve used a slighty different kind of sharpening than my usual.
The main idea is that when local contrast is added to a photo then some details are clipped.
The simple solution is to compare the sharpened version with the original version, if something is clipped we just use the unsharpened pixels, basically it’s like a threshold.
My workflow was to export an unsharpened and one sharpened file from the raw converter, then I’ve used the custom blend layer mode in g’mic where the sharpened file is the top layer and this formula:
“b=if(b==0&&a>0 ,a ,b);if(b==1&&a<1,a,b)”
hi @age, I like the fortress photo. I hadn’t realised cam photos could be of such quality! Sharp; leaves against the sky ok, etc. What phone was it? (no EXIF)
I’m a bit confused whether you mean sharpening or “true” local contrast. I suppose I don’t think of sharpening (a very very local contrast effect!) as causing clipping problems, whereas true local contrast yes.
Not that I know of. I would describe the effect as “crystallizing” - pixels are assimilated into larger crystals. It doesn’t rely on changing edge contrast as USM does.