Answers for "javascript canvas grayscale"

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1

javascript canvas grayscale

const img = document.querySelector('img');
const canvas = document.querySelector('canvas');
const ctx = canvas.getContext('2d');

img.onload = function() {
  canvas.width = img.width;
  canvas.height = img.height;
  ctx.filter = 'grayscale(1)';
  ctx.drawImage(img, 0, 0, img.width, img.height);
}

Posted by: Guest on August-13-2021

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