https://github.com/linusu/resize-image-data
Resize a decoded raw image
https://github.com/linusu/resize-image-data
Last synced: about 1 year ago
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Resize a decoded raw image
- Host: GitHub
- URL: https://github.com/linusu/resize-image-data
- Owner: LinusU
- Created: 2017-08-17T15:43:19.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2021-10-27T12:23:22.000Z (over 4 years ago)
- Last Synced: 2025-04-30T17:08:38.067Z (about 1 year ago)
- Language: JavaScript
- Size: 794 KB
- Stars: 30
- Watchers: 3
- Forks: 1
- Open Issues: 1
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Metadata Files:
- Readme: readme.md
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README
# Resize Image Data
Resize a decoded raw image.
## Installation
```sh
npm install --save resize-image-data
```
## Usage
```js
const resizeImageData = require('resize-image-data')
const result = resizeImageData(image, 128, 128, 'bilinear-interpolation')
console.log(result.width)
//=> 128
console.log(result.height)
//=> 128
console.log(result.data)
//=> Uint8ClampedArray [ ... ]
```
## API
### `resizeImageData(image, width, height[, algorithm])`
Resize the image to the supplied width and height, using the specified algorithm.
The `image` argument should be a `ImageData` instance, or any object with the following properties:
- `width: Number` - The width of the image, in pixels
- `height: Number` - The height of the image, in pixels
- `data: Buffer | TypedArray | Array` - The image data, stored as raw pixel data in the RGBA order
The following algorithms is currently supported:
- `nearest-neighbor`
- `bilinear-interpolation`
If no algorithm is provided, it will currently default to `bilinear-interpolation`. This may however change in any subsequent release, so don't count on it being stable between even minor and patch releases. The goal is to provide the "best" experience when not supplying an algorithm, which could mean different default algorithms depending wether we are scaling up or down.
Returns an `ImageData` instance.
## Related
- [`rotate-image-data`](https://github.com/LinusU/rotate-image-data) - Rotate a decoded raw image