Skip to content

Latest commit

 

History

History
 
 

plugin-threshold

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
src
src
 
 
test
test
 
 
CHANGELOG.md
CHANGELOG.md
 
 
README.md
README.md
 
 
babel.config.js
babel.config.js
 
 
index.d.ts
index.d.ts
 
 
package.json
package.json
 
 

README.md

@jimp/plugin-threshold

Lightens an image.

This is useful as a simplified method for processing scanned drawings, signatures, etc

Usage

  • @param {number} options object
    • max: A number auto limited between 0 - 255
    • replace: (optional) A number auto limited between 0 - 255 (default 255)
    • autoGreyscale: (optional) A boolean whether to apply greyscale beforehand (default true)
  • @param {function(Error, Jimp)} cb (optional) a callback for when complete
import jimp from 'jimp';

async function main() {
  const image = await jimp.read('test/image.png');

  image.threshold({ max: 150 });
  // or
  image.threshold({ max: 200, replace: 200, autoGreyscale: false });
}

main();