Quick question: At this website here http://www.vischeck.com/examples/ there are a few pictures of numbers hidden within another color to test for color blindness. Is there any way that these images can be generated algorithmically?
They are based on ready-made dot fields, and you overlay a number on them, and do the coloring on the whole dot each time it is partially filled. If You know the correct colors - that will do ;)
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