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Old 1st January 2015, 21:57   #27942  |  Link
Shiandow
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Join Date: Dec 2013
Posts: 753
Quote:
Originally Posted by e-t172 View Post
Because the best image quality is obtained with a gaussian point spread function, which is the ideal goal for an image upscaler.
I'm not sure why you think a gaussian PSF is the ideal goal for an image upscaler. If that was the case then using a Gaussian kernel for upscaling would be ideal, but that tends to result in images which are quite blurry.

As far as I could find the article you linked didn't claim that Gaussian was best, just that it was better than a box filter.

Last edited by Shiandow; 1st January 2015 at 22:15.
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