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Author Topic: what does sharpening->detail really do?  (Read 732 times)
hjulenissen
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« on: February 18, 2013, 08:26:17 AM »
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I find all of the explanations really fuzzy. Does it distinguish between edges and structure, or is it merely some midfrequency/highfrequency tilt parameter of the "gaussian"?

-h
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BartvanderWolf
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« Reply #1 on: February 18, 2013, 09:01:08 AM »
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I find all of the explanations really fuzzy. Does it distinguish between edges and structure, or is it merely some midfrequency/highfrequency tilt parameter of the "gaussian"?

Hi,

It's fuzzy, a bit of a blur, indeed. Since it's proprietary, we'll never know exactly, but at 0 it's supposedly a form of USM sharpening, and at 100 it's a form of deconvolution sharpening (I'm not sure if it's based on a Gaussian PSF shape, or something more disc shaped). In between 0 and 100 it's a sort of mix between USM and Deconvolution.

Cheers,
Bart
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