https://github.com/tom-weatherhead/image-processing-js

A pure JavaScript raster image processing engine: Affine transformations, convolutions, compositing, etc.
https://github.com/tom-weatherhead/image-processing-js

compositing convolution-filter image-processing resampling

Last synced: 4 months ago
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A pure JavaScript raster image processing engine: Affine transformations, convolutions, compositing, etc.

• Host: GitHub
• URL: https://github.com/tom-weatherhead/image-processing-js
• Owner: tom-weatherhead
• License: mit
• Created: 2018-04-18T00:52:43.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2023-01-06T02:17:12.000Z (over 2 years ago)
• Last Synced: 2025-02-18T10:51:16.747Z (4 months ago)
• Topics: compositing, convolution-filter, image-processing, resampling
• Language: JavaScript
• Homepage:
• Size: 2.84 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 17
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# image-processing-js

A pure JavaScript raster image processing engine.

[![Build Status](https://secure.travis-ci.org/tom-weatherhead/image-processing-js.svg)](https://travis-ci.org/tom-weatherhead/image-processing-js)

[![npm](https://img.shields.io/npm/v/image-processing-js.svg)](https://www.npmjs.com/package/image-processing-js)

[![npm](https://img.shields.io/npm/dt/image-processing-js.svg)](https://www.npmjs.com/package/image-processing-js)

[![Maintainability](https://api.codeclimate.com/v1/badges/caaec44ebfcb74999b13/maintainability)](https://codeclimate.com/github/tom-weatherhead/image-processing-js/maintainability)

[![Known Vulnerabilities](https://snyk.io/test/github/tom-weatherhead/image-processing-js/badge.svg?targetFile=package.json&package-lock.json)](https://snyk.io/test/github/tom-weatherhead/image-processing-js?targetFile=package.json&package-lock.json)

[![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/tom-weatherhead/image-processing-js/blob/master/LICENSE)

## Installation

Clone the repository and build it:

```sh

$ git clone https://github.com/tom-weatherhead/image-processing-js.git

$ cd image-processing-js

$ npm run build

```

Then run an image processing command; e.g.

```sh

$ npm start -- rs

$ npm start -- rs -sc -w 640 -h 480 -q 60

```

Supported bitmap image processing operations:

```

- Colour transformations

- Compositing

- Convolvutions, including Gaussian blur

- Flip and mirror

- Pixelate

- Resampling: Nearest neighbour, bilinear, and bicubic

- Rotation

```

TODO:

```

- Implement and test resampling in context

- Test the new dividend remapping algorithm

- Attempt to improve the performance of the arithmetic code by using integer types such as UINT16,

and optimized operations such as (x / 256) === (x >> 8);

- Add unit tests

```

## License

[MIT](https://choosealicense.com/licenses/mit/)