char-dust

Convert image to char.

示例 | Demo

由来 | Why char-dust?

Usage

yarn add char-dust
# npm install char-dust

Browser

<img id="demo-image" src="xxx" />

import { imageToText, getImageData } from "char-dust";

const imageElement = document.getElementById("demo-image");
const imageData = getImageData(imageElement);
// const text = imageToText(imageData);
// default is "@#&$%863!i1uazvno~;*^+-. "
const text = imageToText(imageData, "@#&$%863!i1uazvno~;*^+-. ");
console.log(text);

Node.js

Method 1: with node-canvas

If you use it in Node.js without document, you need npm install canvas.

yarn add canvas

node-canvas: need node-pre-gyp

Method 2: without native dependencies

yarn add jimp @canvas/image-data

import path from "path";
import jimp from "jimp";
import ImageData from "@canvas/image-data";
import { imageToText } from "char-dust";

const imagePath = path.resolve(__dirname, "./cat-of-the-rebellion.jpg");
jimp.read(imagePath).then((image) => {
  // Magnify 5x
  image.scale(5);
  const imageData = new ImageData(
    Uint8ClampedArray.from(image.bitmap.data),
    image.bitmap.width,
    image.bitmap.height
  );

  const text = imageToText(imageData);
  console.log(text);
});

Functions

• [x] Read Image
• [x] Scale Image
• [x] Convert to Char
• [x] Console
• [x] npm package
• [ ] Gif (may be you want google/gif-for-cli)

Todo

• 直方均衡化

Ref

• jscii
• image-to-text