#visualacuity — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #visualacuity, aggregated by home.social.
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Wild Fish Recognize Individual Humans Who Feed Them
"Yes, people really do underestimate the cognitive abilities of fish."
#fish #WildFish #cognition #intelligence #Vision #VisualAcuity #behavior #evolution https://medium.com/grrlscientist/wild-fish-recognize-individual-humans-who-feed-them-4762c0fcf4e5
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Wild Fish Recognize Individual Humans Who Feed Them
"Yes, people really do underestimate the cognitive abilities of fish."
#fish #WildFish #cognition #intelligence #Vision #VisualAcuity #behavior #evolution https://medium.com/grrlscientist/wild-fish-recognize-individual-humans-who-feed-them-4762c0fcf4e5
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The Freiburg Vision Test FrACT₁₀ https://michaelbach.de/fract/ has learned something new: Assessment of grating contrast thresholds. You select spatial frequency and patch diameter (in Settings>Contrast), and it will hone in on the threshold. An approximate Gaussian window smoothes the grating edge. Error diffusion allows for accurate threshold in spite of 8 bit limits. Downloadable as WebApp. For giggles try 'Autorun to target contrast'.
#vision #visionscience #acuity #psychophysics #visualacuity