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Comment by grandempire

5 days ago

What is a little rectangle? Physical display pixels are separate RGB leds with a non-rectangular shape.

Many video formats use rectangular pixels. It's less common these days, but there were no squares on DVDs for example.

Even some VGA modes have non-square pixels, and these were used by many games and... Windows 9x splash screen.

In medical imaging, data are often acquired using anisotropic resolution. So a pixel (or voxel in 3D) can be an averaged signal sample originating from 2mm of tissue in one direction and 0.9mm in another direction.

They're rectangles on my monitor.

  • If black and white or some other cases, but there are typically subpixels that can make things like sparse enough text stroke transitions get 3X horizontal resolution.