color-curve-adjust

Performs a Photoshop/GIMP curve adjustment on a RGB color

Based on CSPL.js. Read more about the algorithm here.

Install

$ npm install color-curve-adjust

Usage

• Edit your curve in Photoshop

  

• Create an array of each point of the curve

  const curve = [
      { x: 0, y: 85 },
      { x: 50, y: 120 },
      { x: 140, y: 200 },
      { x: 190, y: 225 },
      { x: 255, y: 255 },
  ];

• Import the module and call it with a color and your array

  import curveAdjust from 'color-curve-adjust';
  
  curveAdjust('#5a2149', curve);
  //=> '#9d6b8d'
  
  curveAdjust('#5a2149', curve, 'r');   // adjust only the red channel
  //=> '#9d2149'
  
  curveAdjust('#5a2149', curve, 'gb');  // adjust only green & blue channels
  //=> '#5a6b8d'

License

MIT © Jérôme Zecca