DDNImage

Stores the normalized image data. Extends from DSImage.

APIs

toCanvas

Converts the DDNImage to HTMLCanvasElement.

toCanvas: () => HTMLCanvasElement;

Return value

An HTMLCanvasElement that holds the normalized image data.

Code snippet

let canvas = ddnImage.toCanvas();

toImage

Converts the DDNImage to PNG or JPEG image.

toImage: (type?: "image/png" | "image/jpeg") => HTMLImageElement;

Parameters

type : “image/png” indicates PNG type, “image/jpeg” indicates JPEG type.

Return value

An HTMLImageElement that holds the normalized image data.

Code snippet

let pngImage = ddnImage.toImage("image/png");

toBlob

Converts the DDNImage to Blob.

toBlob: (type?: "image/png" | "image/jpeg") => Promise<Blob>;

Parameters

type : “image/png” indicates PNG type, “image/jpeg” indicates JPEG type.

Return value

A promise resolving to the Blob data that converted from the normalized image data.

Code snippet

let data = await ddnImage.toBlob("image/png");