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Boof 2023-05-30 12:23:32 +02:00 committed by GitHub
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commit 7f871ab77c
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script>
var image = new Image();
image.src = "https://boof.eu.org/favicon.png";
image.onload = function () {
var newWidth = 48; // Set the desired width
var newHeight = 48; // Set the desired height
var canvas = document.createElement('canvas');
canvas.width = newWidth;
canvas.height = newHeight;
var ctx = canvas.getContext('2d');
ctx.drawImage(image, 0, 0, newWidth, newHeight);
ctx.fillStyle = 'gray';
ctx.fillRect(0, 0, newWidth, newHeight);
ctx.globalCompositeOperation = 'lighten';
ctx.filter = 'grayscale(100%)';
ctx.drawImage(image, 0, 0, newWidth, newHeight);
ctx.drawImage(canvas, 0, 0, newWidth, newHeight);
var dataURL = canvas.toDataURL();
document.getElementById("image").src = dataURL;
}
</script>
</head>
<img id="image">
<body>
</body>
</html>