0.5.0 • Published 5 years ago
ndarray-entropy v0.5.0
ndarray-entropy
Calculate the entropy of an intensity image, inspired by Matlab "entropy" function.
Usage
Syntax
entropy(img [,options]);Options
| Option | required | default | description |
|---|---|---|---|
| channel | no | 0 | Select the RGB channel to calculate the entropy for. 0 for the red channel, 1 for the green and 2 for the blue one. If img is a 2D array, this option has no effect. |
Example
const getPixels = require('get-pixels');
const entropy = require('ndarray-entropy');
getPixels('nature.png', (err, img) => {
if (!err && img) {
console.log(entropy(img));
// > 7.140717410116984
}
})