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jst 2013-04-11 20:37:15 +02:00
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Resize Resize
====== ======
Image resizing for the [Go programming language](http://golang.org) that includes a few interpolation methods. Image resizing for the [Go programming language](http://golang.org) with common interpolation methods.
[![Build Status](https://travis-ci.org/nfnt/resize.png)](https://travis-ci.org/nfnt/resize) [![Build Status](https://travis-ci.org/nfnt/resize.png)](https://travis-ci.org/nfnt/resize)
@ -30,7 +30,7 @@ If either `width` or `height` is set to 0, it will be set to an aspect ratio pre
resize.Resize(width, height uint, img image.Image, interp resize.InterpolationFunction) image.Image resize.Resize(width, height uint, img image.Image, interp resize.InterpolationFunction) image.Image
``` ```
The provided interpolation functions are The provided interpolation functions are (from fast to slow execution time)
- `NearestNeighbor`: [Nearest-neighbor interpolation](http://en.wikipedia.org/wiki/Nearest-neighbor_interpolation) - `NearestNeighbor`: [Nearest-neighbor interpolation](http://en.wikipedia.org/wiki/Nearest-neighbor_interpolation)
- `Bilinear`: [Bilinear interpolation](http://en.wikipedia.org/wiki/Bilinear_interpolation) - `Bilinear`: [Bilinear interpolation](http://en.wikipedia.org/wiki/Bilinear_interpolation)
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- `Lanczos2`: [Lanczos resampling](http://en.wikipedia.org/wiki/Lanczos_resampling) with a=2 - `Lanczos2`: [Lanczos resampling](http://en.wikipedia.org/wiki/Lanczos_resampling) with a=2
- `Lanczos3`: [Lanczos resampling](http://en.wikipedia.org/wiki/Lanczos_resampling) with a=3 - `Lanczos3`: [Lanczos resampling](http://en.wikipedia.org/wiki/Lanczos_resampling) with a=3
Which of these methods gives the best results depends on your use case.
Sample usage: Sample usage:
```go ```go
@ -132,4 +134,4 @@ License
------- -------
Copyright (c) 2012 Jan Schlicht <janschlicht@gmail.com> Copyright (c) 2012 Jan Schlicht <janschlicht@gmail.com>
Resize is released under an MIT style license. Resize is released under a MIT style license.