if the brain were better at deconvolution, nobody would need glasses.'nupdate: i was wrong
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if the brain were better at deconvolution, nobody would need glasses.
update: i was wrong
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if the brain were better at deconvolution, nobody would need glasses.
update: i was wrong
@lritter They would. It's not actually a convolution thing
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@lritter They would. It's not actually a convolution thing
@rygorous isn't blurring an invertible function?
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@rygorous isn't blurring an invertible function?
@lritter 1. Deconvolution is a thing, but even the pure math form is inherently unstable for most filters (and actually non-invertible for others).
2. Being out of focus is not actually the same as blur, and not a convolution filter. It's close in the simplest cases, like when you're looking at say a page of paper with no other occluders in sight, but the general case is much more complicated.
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@lritter 1. Deconvolution is a thing, but even the pure math form is inherently unstable for most filters (and actually non-invertible for others).
2. Being out of focus is not actually the same as blur, and not a convolution filter. It's close in the simplest cases, like when you're looking at say a page of paper with no other occluders in sight, but the general case is much more complicated.
@rygorous is the information destroyed yes or no?
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@rygorous is the information destroyed yes or no?
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@lritter @rygorous it's too bad I can't take a screenshot of what I see without my glasses on, because the effect isn't so much blurring in the graphics sense as a confusing disintegrating mess. consider, the brain is quite good at making stuff up when presented with incomplete information. if you see text briefly like a sign or something, you'll see and recognize a message immediately, but it might not be the actual message. I can't do that with my glasses off, text doesn't resolve at all.
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@lritter @rygorous it's too bad I can't take a screenshot of what I see without my glasses on, because the effect isn't so much blurring in the graphics sense as a confusing disintegrating mess. consider, the brain is quite good at making stuff up when presented with incomplete information. if you see text briefly like a sign or something, you'll see and recognize a message immediately, but it might not be the actual message. I can't do that with my glasses off, text doesn't resolve at all.