brailleify

Turn images into braille text.

Installation

npm install brailleify --save

Usage

function brailleify(image, options = {})

• image is a browser canvas context object, or a Jimp image bitmap.
• options is an object with the following options:
  • align: Boolean uses a non-space braille character to keep the image aligned vertically. Default is true.
  • invert: Boolean switches the mapping of braille characters so darker regions are mapped to fewer dots, and vice versa. Default is false.
  • threshold: Integer affects the overall "shade" of the braille, ranging from 0-255. Default is 120.
  • scale: Integer determines the scale of the image pixels to the braille dots. 1 means 1 pixel per dot, 2 means 4 pixels per dot, and so on. Default is 4.

Example

var Jimp = require('jimp');
var brailleify = require('brailleify');
Jimp.read('./joy.png')
	.then(image => brailleify(image.bitmap, {threshold: 122, scale: 2}))
	.then(console.log);

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