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Add Magic Kernel Sharp (no relation) to resizing kernels

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Lovell Fuller
2025-06-15 12:53:10 +01:00
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lib/resize.js
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@@ -150,6 +150,8 @@ function isResizeExpected (options) {
* - `mitchell`: Use a [Mitchell-Netravali spline](https://www.cs.utexas.edu/~fussell/courses/cs384g-fall2013/lectures/mitchell/Mitchell.pdf).
* - `lanczos2`: Use a [Lanczos kernel](https://en.wikipedia.org/wiki/Lanczos_resampling#Lanczos_kernel) with `a=2`.
* - `lanczos3`: Use a Lanczos kernel with `a=3` (the default).
* - `mks2013`: Use a [Magic Kernel Sharp](https://johncostella.com/magic/mks.pdf) 2013 kernel, as adopted by Facebook.
* - `mks2021`: Use a Magic Kernel Sharp 2021 kernel, with more accurate (reduced) sharpening than the 2013 version.
*
* When upsampling, these kernels map to `nearest`, `linear` and `cubic` interpolators.
* Downsampling kernels without a matching upsampling interpolator map to `cubic`.