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@sensu/color-extractor
Advanced tools
Changelog
v1.1.2 - 2018-06-01
Readme
Extract color palettes from photos using Node.js.
Is as simple as with any other Node.js module:
$ npm install color-extractor
NOTE: color-extractor
depends on gm module, which in turn depends on GraphicsMagick.
color-extractor
exports two functions:
ce = require('color-extractor')
ce.topColors('Photos/Cats/01.jpg', function (error, colors) {
console.log(colors);
});
topColors
function takes two arguments:
Callback function will be passed an Array
with RGB triplet of each color and its frequency:
[
[1, [46, 70, 118]],
[0.3, [0, 0, 2]],
[0.2, [12, 44, 11]]
]
The second function, colorKey
, returns an array with nine colors, where each one can be mapped to a 3x3 box, ie. super-pixelised representation of the photo.
ce.colorKey('Photos/Cats/999999.jpg', function (error, colors) {
database.store('color-keys', photoId, colors);
res.send(colors);
// render colors to user while they wait for the photo to load.
// (or something equally brilliant)
});
color-extractor
exports two more utility functions:
> ce.rgb2hex(100, 10, 12);
'#640a0c'
> ce.rgb2hex([44, 44, 44]);
'#2c2c2c'
> ce.hex2rgb('#ffffff');
[255, 255, 255]
> ce.hex2rgb('45c092')
[69, 192, 146]
color-extractor is published under MIT license, please see the LICENSE file for full details.
Photos used in the sample can be downloaded from Flickr:
FAQs
Extract color palettes from images
The npm package @sensu/color-extractor receives a total of 0 weekly downloads. As such, @sensu/color-extractor popularity was classified as not popular.
We found that @sensu/color-extractor demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
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