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adaptive-threshold

1.2.0 • Public • Published

node-adaptive-threshold

Adaptive Threshold in JavaScript. Both in Node.js and browser.

Install

$ npm install adaptive-threshold

Usage

I made it as an ndarray module. So, the simplest usage is with get-pixels and save-pixels as below.

const fs = require('fs')
const savePixels = require('save-pixels')
const getPixels = require('get-pixels')
const adaptiveThreshold = require('adaptive-threshold')
 
getPixels('src.png', (err, pixels) => {
  if (err) {
    console.error(err)
    return
  }
  let thresholded = adaptiveThreshold(pixels)
  savePixels(thresholded, 'png').pipe(fs.createWriteStream('dist.png'))
})

API

adaptiveThreshold(pixels[, options])

Returns a thresholded ndarray.

  • pixels - an ndarray whose shape is [width, height, channels].
  • options.size - the size of neighbourhood area.
  • options.compensation - a constant which is subtracted from the mean.

Install

npm i adaptive-threshold

DownloadsWeekly Downloads

94

Version

1.2.0

License

MIT

Last publish

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