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Automatic Optical Illusions Using Python and OpenCV

github.com

1–10 of 20 posts

Re: Automatic Optical Illusions Using Python and OpenCV

#3

To think the minecraft image really is in black and white is mind blowing. I wonder if that could become a minecraft mode and how it would look as a video

But it's not really in black and white, every Nth row and Nth column is in color (where N is something like 5?). Still kind of interesting, though.

Re: Automatic Optical Illusions Using Python and OpenCV

#4
post #3

To think the minecraft image really is in black and white is mind blowing. I wonder if that could become a minecraft mode and how it would look as a video

But it's not really in black and white, every Nth row and Nth column is in color (where N is something like 5?). Still kind of interesting, though.

It's like eating a candy bar with 10% of the sugar. The mind will think it's almost as nice as the original candy bar.

Re: Automatic Optical Illusions Using Python and OpenCV

#6
I genuinely don't really understand what's trying to be proven here.

I mean, it's just how our eye+brain work indeed. You can make it "better" by dezooming on the images, or "worst" by zooming in, which is just as expected.

It doesn't really seem far from other techniques for image compression, just a less good version of those ?

Re: Automatic Optical Illusions Using Python and OpenCV

#7
post #3

To think the minecraft image really is in black and white is mind blowing. I wonder if that could become a minecraft mode and how it would look as a video

But it's not really in black and white, every Nth row and Nth column is in color (where N is something like 5?). Still kind of interesting, though.

I agree. The github page links to a Google colab page though(https://colab.research.google.com/drive/1WJfLJH0mBzXGGeRfvQa...) where the first image has a diagonal grid with much less frequent lines. This version of the illusion is more compelling to me.

Re: Automatic Optical Illusions Using Python and OpenCV

#9

The photos look exactly as I'd imagine they should, i.e. if the grid is providing 20% of the color of the original, the result looks 20% as colorful... I'm not sure I get what's "magical" about this?

Well why don't we see a B&W image with coloured lines on it? Rather we see a coloured image with coloured lines on it. It's pretty spooky to me.

It's interesting zooming in, until the point that your brains perceives the grid properly, and a B&W image pops forth.

Re: Automatic Optical Illusions Using Python and OpenCV

#10
post #3

To think the minecraft image really is in black and white is mind blowing. I wonder if that could become a minecraft mode and how it would look as a video

But it's not really in black and white, every Nth row and Nth column is in color (where N is something like 5?). Still kind of interesting, though.

Well, it is B&W. The N here is so large that you can easily resolve the pixels that should be B&W, yet they aren't.
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