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Optical Illusions

Posted: Sun Feb 22, 2026 8:09 am
by Zema Bus
parallelLines.jpg
parallelLines2.jpg

Another phenomena that reminds me of computer hardware and software - digital processing that under some circumstances gets things wrong.

Re: Optical Illusions

Posted: Sun Feb 22, 2026 8:48 am
by Grogan
Hmm, yeah, weird. I can't even make myself see those blue bars as parallel. However, if I follow it with my eyes I can see that its straight based on the points it intersects with on the light squares in the background (that do look straight and parallel). Just to make sure I wasn't being had, I saved it and opened it (and zoomed) with gimp and checked the coordinates too :lol:

See though, the dark blue lines inside the bars ARE curved. The lines that join those shapes together. That's part of the deception I think.