File talk:Ishihara-12.gif
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I honestly can't see either numbers in this picture (until the numbers fade in as white of course), but my colleague could see them easily. I don't know why I can't see it as this pic is not a colour test :,( Something weird in my visual processing?? 129.78.233.212 (talk) 09:00, 10 September 2013 (UTC)