mirror of
https://github.com/thangisme/notes.git
synced 2024-12-23 03:46:40 -05:00
76 lines
1.6 KiB
Markdown
76 lines
1.6 KiB
Markdown
|
# Color-diff
|
||
|
|
[](https://travis-ci.org/markusn/color-diff)
|
||
|
|
[](https://coveralls.io/r/markusn/color-diff?branch=master)
|
||
|
|
|
||
|
|
Implemets the CIEDE2000 color difference algorithm, conversion between RGB and LAB color and mapping all colors in palette X to the closest color in palette Y based on the CIEDE2000 difference.
|
||
|
|
|
||
|
|
## Installation
|
||
|
|
|
||
|
|
```bash
|
||
|
|
npm install color-diff --save
|
||
|
|
```
|
||
|
|
|
||
|
|
## Tests
|
||
|
|
|
||
|
|
Are located in the `test/` folder and are run by:
|
||
|
|
|
||
|
|
npm test
|
||
|
|
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
var diff = require('color-diff');
|
||
|
|
```
|
||
|
|
|
||
|
|
### diff.closest(color, palette)
|
||
|
|
|
||
|
|
Returns the closest color.
|
||
|
|
|
||
|
|
```js
|
||
|
|
var color = { R: 255, G: 1, B: 30 };
|
||
|
|
// red, green, blue
|
||
|
|
var palette = [ {R: 255, G: 0, B: 0 }, {R: 0, G: 255, B: 0 }, {R: 0, G: 0, B: 255} ];
|
||
|
|
|
||
|
|
diff.closest(color, palette); // {R: 255, G: 0, B: 0 }, red
|
||
|
|
```
|
||
|
|
|
||
|
|
The result above is obvious, but `diff.closest` could deal with more complicated cases.
|
||
|
|
|
||
|
|
### diff.furthest(color, palette)
|
||
|
|
|
||
|
|
Returns the most different color.
|
||
|
|
|
||
|
|
```js
|
||
|
|
var color = { R: 255, G: 255, B: 255 };
|
||
|
|
// black, white
|
||
|
|
var palette = [ {R: 0, G: 0, B: 0 }, {R: 255, G: 255, B: 255 } ];
|
||
|
|
|
||
|
|
diff.furthest(color, palette); // {R: 0, G: 0, B: 0 }, black
|
||
|
|
```
|
||
|
|
|
||
|
|
The result above is obvious, but `diff.furthest` could deal with more complicated cases.
|
||
|
|
|
||
|
|
|
||
|
|
#### color
|
||
|
|
`Object`
|
||
|
|
|
||
|
|
`color` is an object containing 3 properties: 'R', 'G', 'B', such as:
|
||
|
|
|
||
|
|
```js
|
||
|
|
{ R: 255, G: 1, B: 0 }
|
||
|
|
```
|
||
|
|
|
||
|
|
#### palette
|
||
|
|
|
||
|
|
`Array.<Object>`
|
||
|
|
|
||
|
|
Color palette array which contains many `color`-like objects.
|
||
|
|
|
||
|
|
|
||
|
|
## Author
|
||
|
|
Markus Ekholm
|
||
|
|
|
||
|
|
## License
|
||
|
|
3-clause BSD. For details see `COPYING`.
|