<!DOCTYPE html> <meta charset="utf-8"> <link rel=match href=drawimage_html_image_3_ref.html> <style> html, body { margin: 0; } </style> <canvas id="dest" height="100" width="100"></canvas> <script> var sourceWidth = 100; var sourceHeight = 100; var smoothingEnabled = true; var destCanvas = document.getElementById('dest'); var sourceImg = document.createElement('img'); sourceImg.src = '../2x2.png' sourceImg.width = sourceWidth; sourceImg.height = sourceHeight; sourceImg.onload = function() { var destCtx = destCanvas.getContext('2d'); destCtx.fillStyle = "#FF0000"; destCtx.fillRect(0, 0, destCanvas.width, destCanvas.height); destCtx.imageSmoothingEnabled = smoothingEnabled; // 4 arguments, the source origin is not 0,0, the dest size is provided // The source canvas will copied to the 50, 50 position of the destination canvas and // on an area of 50x50 pixels destCtx.drawImage(sourceImg, 50, 50, 50, 50); } </script>