Populate array with pixel information from image?

Does anyone know of a way of converting pixel information from something like base64 or other to an array with pixel positions and RGBA values?

The documented way to do this is to paste the image on a DrawingCanvas, save snapshot and read pixel data from the snapshot. Be aware that the snapshot dimensions may be different from the image dimensions, and if the image is large, this may take a considerable time. It works much faster with scripting, see this demo:

howtoconstructdemos.com/using-flood-fill-for-drawing-canvas-to-make-a-coloring-game

It may be possible to read pixel data directly from the sprite with JavaScript, but I don't know for sure.

Thanks dop. Yeah I already discovered the drawing canvas way when I was investigating this trying to help someone on the forum but I had hoped there would be a more elegant way to do it with data alone. I'll keep looking :)