Traditional Culture Encyclopedia - Photography major - What is anti-aliasing for?
What is anti-aliasing for?
It is usually used in digital signal processing, digital photography, computer graphics and digital sound effects. To soften the aliased digital signals.
Extended data
Working principle:
The image is created in a separate buffer, and the resolution of the buffer image is higher than the screen resolution. Suppose it is 2* 1 (or 2x), and the horizontal size of the buffer scene is twice the screen resolution. If it is 2*2 (or 4x) anti-aliasing, the horizontal and vertical dimensions of the buffered image are twice that of the displayed image. After the pixel calculation is doubled, two or four adjacent pixels are selected. This process is called sampling.
After mixing these samples, the final pixel has the characteristics of adjacent pixels, so the transition color between pixels becomes more approximate and the color transition of the whole image tends to be smooth. Then the final pixel is output to the frame buffer, stored as an image, and then sent to the display to display a frame. Every frame is anti-aliased, and all the pictures in the game become anti-aliased.
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