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A comment on Knusperli: A deblocking JPEG decoder.

Re:Knusperli: A deblocking JPEG decoder by mrob on Monday March 19, 2018 @12:35AM (#16616211)
See also https://github.com/victorvde/jpeg2png , which tries to maximize smoothness everywhere instead of just at block boundaries.
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Re:Knusperli: A deblocking JPEG decoder by vardump on Monday March 19, 2018 @04:47AM (#16616926)
Maybe these two approaches, jpeg2png and Knusperli, could be combined to get potentially superior end result.

Knusperli would run first, to reduce quantization discontinuities a bit.

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