StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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62 lines
1.2 KiB
62 lines
1.2 KiB
4 years ago
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quantize
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========
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Node.js module for color quantization, based on Leptonica.
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Install
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-------
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npm install quantize
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Quick Overview
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--------------
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###Usage
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`````javascript
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var quantize = require('quantize');
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var arrayOfPixels = [[190,197,190], [202,204,200], [207,214,210], [211,214,211], [205,207,207]];
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var maximumColorCount = 4;
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var colorMap = quantize(arrayOfPixels, maximumColorCount);
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`````
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* `arrayOfPixels` - An array of pixels (represented as [R,G,B arrays]) to quantize
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* `maxiumColorCount` - The maximum number of colours allowed in the reduced palette
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#####Reduced Palette
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The `.palette()` method returns an array that contains the reduced color palette.
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`````javascript
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// Returns the reduced palette
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colorMap.palette();
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// [[204, 204, 204], [208,212,212], [188,196,188], [212,204,196]]
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`````
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#####Reduced pixel
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The `.map(pixel)` method maps an individual pixel to the reduced color palette.
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`````javascript
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// Returns the reduced pixel
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colorMap.map(arrayOfPixels[0]);
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// [188,196,188]
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`````
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Author
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------
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* [Olivier Lesnicki](https://github.com/olivierlesnicki)
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Contributors
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------------
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* [Nick Rabinowitz](https://github.com/nrabinowitz)
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* [Mike Bostock] (https://github.com/mbostock)
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License
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-------
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Licensed under the MIT License.
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