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<html><body><h1>HTML5 Canvas</h1><h2>The putImageData() Method</h2><canvas id="myCanvas" width="300" height="150" style="border:1px solid grey"></canvas><script>const c = document.getElementById("myCanvas");const ctx = c.getContext("2d");ctx.fillStyle = "red";ctx.fillRect(10, 10, 50, 50);function copy() { const imgData = ctx.getImageData(10, 10, 50, 50); ctx.putImageData(imgData, 10, 70);}</script><p><button onclick="copy()">Copy</button></p></body></html>