I want to convert this string:
data:image/png;base64,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
in to each Pixel RGB Values. This means I need a converter, but I have no idea how to convert stuff. I need an explanation on how I get the RGB of the Base64 String. or you could give me a Project on the website scratch.mit.edu which already made this happen.
My goal at the end is to recreate the entire Base64 code in to a image again but I want to make my own engine/converter for it.