Lanczos kernel for image resizing (imresize function)

2021 2 4
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更新时间：2021 2 9
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Hi!
I would like to know how the lanczos2 kernel works in imresize function.
Also does anyone know if there is a reference that I can use in a scientific publication?
Thanks!

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回答（1 个）

Rohit Pappu
Rohit Pappu 2021-2-9

2 个投票

The Lanczos-2 algorithm precalculates the coefficients based on the resize factor. The model calls the lanczos2_coeffi.m script to calculate and store these coefficients. The script calculates the Lanczos-2 coefficients using 6 taps and 32 phases.
Additional documentation and references can be found here

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