https://github.com/zschuessler/DeltaE
CIE color difference formulas in JavaScript
https://github.com/zschuessler/DeltaE
chroma-key cielab deltae javascript
Last synced: about 2 months ago
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CIE color difference formulas in JavaScript
- Host: GitHub
- URL: https://github.com/zschuessler/DeltaE
- Owner: zschuessler
- License: unlicense
- Created: 2014-11-16T19:12:36.000Z (over 10 years ago)
- Default Branch: master
- Last Pushed: 2020-06-21T15:21:35.000Z (almost 5 years ago)
- Last Synced: 2025-03-28T14:11:21.557Z (about 2 months ago)
- Topics: chroma-key, cielab, deltae, javascript
- Language: JavaScript
- Homepage: http://zschuessler.github.io/DeltaE
- Size: 29.7 MB
- Stars: 265
- Watchers: 12
- Forks: 25
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# DeltaE - Quantify Color Difference
Check out the following GitHub Pages respository for information on this library.
http://zschuessler.github.io/DeltaE/
## About Delta E
This package gives access to three color difference algorithms.
These algorithms represent the hard work of the [International Commission on Illumination (CIE).](http://www.cie.co.at/)
Historically, each iterative algorithm has been used in print
and textile industries to maintain consistency in machine calibration.
These days, far more interesting use cases arise with media processing.
## Install It
DeltaE comes in flavors of npm and Bower.
// install via npm
npm install delta-e
// install via Bower
bower install delta-e
### Use It
// For npm: use require
var DeltaE = require('delta-e');
// For Bower: include the script. DeltaE global now accessible.
// Create two test LAB color objects to compare!
var color1 = {L: 36, A: 60, B: 41};
var color2 = {L: 100, A: 40, B: 90};
// 1976 formula
console.log(DeltaE.getDeltaE76(color1, color2));
// 1994 formula
console.log(DeltaE.getDeltaE94(color1, color2));
// 2000 formula
console.log(DeltaE.getDeltaE00(color1, color2));
## Tests
A simple Mocha test is setup to test the accuracy of each dE algorithm, for both
npm and Bower versions.
$ cd tests/
$ mocha main.js
## Gulp Tasks
### build
Builds both the Bower and npm version from source.
$ gulp build
### jsdoc
Generates full documentation in the /jsdoc/ folder.
$ gulp jsdoc
## Licensing
This is Unlicensed. Do what you want. Just don't sue me, and we is cool.
> This is free and unencumbered software released into the public domain.
>
> Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
>
> In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
>
> For more information, please refer to