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Nicholas Hephaestus2021-10-11 04:49:00
Raster graphics
Nicholas Hephaestus, 2021-10-11 04:49:00

What is the name of the upscale without improvement?

What is the name of upscaling without quality improvement, whether it's a jpg or a video sequence?
There is a name for this effect, when a small image stretched to FHD looks creepy in the end.

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Zettabyte, 2021-10-11
@Zettabyte

upscaling without quality improvement

Sometimes it is not directly called in any way - "Interpolation: none" or "No interpolation" (in the picture below on the left). And somewhere they call it by the name of the corresponding simplest algorithm - Nearest neighbor :
nearest-neighbor-2-sai-scaling.png
PS
If you need the quality "***whose jackal" famous for memes , then in addition to scaling, you need to apply a high degree of jpeg compression:
Are you squeezing again?
ebuchiy-shakal-jpeg-sony-imx586.jpg

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