Unsharp Mask


I've been asked several times on what Unsharp Mask settings I use.

I utilize the formula provided by Philip Greenspun, the founder of Photo.net, in his book, Philip and Alex's Guide to Web Publishing.

These parameters clearly work for web publishing, but I also use them when I print my images at home.

I reproduced the formula here for my own reference, since I always lose the piece of paper where I've printed this table.

No. 1 2 3 4 5
Image base/16 base/4 base base*4 base*16
Resolution 128 x 192 256 x 384 512 x 768 1024 x 1536 2000 x 3000
Amount 100 100 100 100 100
Radius 0.3 0.5 1.0 2.0 4.0
Threshold 2 2 2 2 2

 


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