"'You see two colours. Click on the line between them. That's it. It starts easy. It does not stay easy.'"
"'Each round the colours get closer together until we find your Just Noticeable Difference - the smallest colour change you can actually see.'"
"'Rough. But look, I once failed a colour vision test because the room had fluorescent lighting. Environment matters. Try again in a dark room with your brightness cranked.'"
"'Genuinely remarkable. You sailed past the theoretical human limit like it owed you money. I'd accuse you of cheating but I don't actually how you'd cheat at this.'"
The 'What's My JND?' test presents players with two colors and requires them to identify the line between them. Initially, the colors are distinct, but they become increasingly similar, making the task more difficult. The game consists of around 40 rounds, with an average score of 0.02. Developed by Keith Cirkel, the test aims to measure the Just Noticeable Difference in color perception. Players receive feedback on their guesses and are compared to others at the end of the game.
Read at Mail Online
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