Applies a true Gaussian blur to the image (warning: this is VERY slow)

Usage

• @param {number} r the pixel radius of the blur
• @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.gaussian(15);
}

main();