ImageData.constructor

The ImageData() constructor returns a newly instantiated ImageData object build from the typed array given and having the specified width and height.

This constructor is the preferred way of creating such an object in a worker.

Syntax

var imageData = new ImageData(array, width, height);
var imageData = new ImageData(width, height);

Parameters

array Optional

A Uint8ClampedArray containing the underlying pixel representation of the image. If no such array is given, an image with a black rectangle of the given dimension will be created.

width

An unsigned long representing the width of the represented image.

height

An unsigned long representing the height of the represented image. This value is optional if an array is given: it will be inferred from its size and the given width.

Example

var imageData = new ImageData(100, 100); // Creates a 100x100 black rectangle
// ImageData { width: 100, height: 100, data: Uint8ClampedArray[40000] }

Specification

Browser compatibility

See also

• CanvasRenderingContext2D.createImageData(), the creator method that can be used outside workers.