This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The CanvasRenderingContext2D.imageSmoothingQuality property of the Canvas 2D API allows you to set the quality of image smoothing.


ctx.imageSmoothingQuality = value
value = ctx.imageSmoothingQuality


One of "low", "medium", or "high".


Using the imageSmoothingQuality property

This is just a simple code snippet using the imageSmoothingQuality property with a scaled image.


<canvas id="canvas"></canvas>


var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");

var img = new Image();
img.src = '';
img.onload = function() {
 ctx.mozImageSmoothingEnabled = false;
 ctx.imageSmoothingQuality = "Medium";
 ctx.webkitImageSmoothingEnabled = false;
 ctx.msImageSmoothingEnabled = false;
 ctx.imageSmoothingEnabled = false;
 ctx.drawImage(img, 0, 0, 400, 200);

Edit the code below and see your changes update live in the canvas:


Specification Status Comment
HTML Living Standard
The definition of 'imageSmoothingQuality' in that specification.
Living Standard Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 54.0 No support ? 41 (Yes)
Feature Android Android Webview Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? 54.0 No support ? 41 (Yes) 54.0

See also

Document Tags and Contributors

 Contributors to this page: mantou, fscholz, jpmedley
 Last updated by: mantou,