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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©2006 Cian Perez