CanvasImageSource is a helper type representing any objects of one of the following types: HTMLImageElement, HTMLVideoElement, HTMLCanvasElement, or ImageBitmap.

API Canvas Helper Reference Référence

RenderingContext is a helper type representing any of the following rendering contexts CanvasRenderingContext2D, WebGLRenderingContext or WebGL2RenderingContext (which inherits from WebGLRenderingContext).

API Canvas Helper Reference Référence

The WindowBase64 helper contains utility methods to convert data to and from base64, a binary-to-text encoding scheme. For example it is used in data URIs.

API Helper HTML-DOM WindowBase64