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Add support for the "nearest" kernel for image reductions (#732)

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Alice Monday
2017-03-14 03:29:23 -07:00
committed by Lovell Fuller
parent 8b5d8a0577
commit 72f69dda30
3 changed files with 7 additions and 1 deletions
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2
lib/resize.js
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@@ -36,6 +36,7 @@ const strategy = {
* @private
*/
const kernel = {
nearest: 'nearest',
cubic: 'cubic',
lanczos2: 'lanczos2',
lanczos3: 'lanczos3'
@@ -62,6 +63,7 @@ const interpolator = {
* By default, the resized image is centre cropped to the exact size specified.
*
* Possible reduction kernels are:
* - `nearest`: Use [nearest neighbour interpolation](http://en.wikipedia.org/wiki/Nearest-neighbor_interpolation).
* - `cubic`: Use a [Catmull-Rom spline](https://en.wikipedia.org/wiki/Centripetal_Catmull%E2%80%93Rom_spline).
* - `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).