| <svg style="display: block; width: 0; height: 0"> |
| <defs> |
| <filter id="blurX"> |
| <feGaussianBlur stdDeviation="5 0"/> |
| </filter> |
| <filter id="blurY"> |
| <feGaussianBlur stdDeviation="0 5"/> |
| </filter> |
| </defs> |
| </svg> |
| <canvas id="canvas" width="100" height="100"></canvas> |
| <script> |
| var canvas = document.getElementById('canvas'); |
| var ctx = canvas.getContext('2d'); |
| ctx.filter = 'url(#blurX)'; |
| ctx.fillStyle = '#0f0'; |
| ctx.fillRect(10, 20, 15, 15); |
| ctx.fillStyle = '#00f'; |
| ctx.fillRect(35, 20, 15, 15); |
| ctx.filter = 'url(#blurY)'; |
| ctx.fillRect(60, 20, 15, 15); |
| ctx.fillStyle = '#0f0'; |
| ctx.fillRect(85, 20, 15, 15); |
| </script> |