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Old 16th August 2014, 17:45   #1  |  Link
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Join Date: Jul 2003
Location: Singapore
Posts: 26
Looking for a USM filter with 8 pixel radius.


I have this film in high definition but extremely soft focus. According to my pixel counting, the soft focus had a glow radius of about 8 pixels.

I was thinking of using a vanilla unsharp masking filter like those found in Photoshop and GIMP to "subtract" out the soft glow with USM's halo.

It works quite well in GIMP, but I had problem locating an equivalent filter for AVISynth. Most sharping filter uses 3x3 kernels which unsharps film grain rather than removing the soft glow.

I was wondering if anyone knows a USM filter with an option to adjust the radius. I never had a need to use a sharpener until now. Thanks in advance.
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