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Here we can see various still frames compared with their source and other scaling factors.
It is important to note that R-ESRGAN always upscales by a factor of x4 and then scales the result down to match the desired factor.
The second row is a comparison against the above image. All images in the second row have been scaled down to their original size using my method. (After upscaling by the factor above) If you compare x1 with x2_scaled, you can clearly see there are fewer jagged aliased lines. We can also see there's not much improvement using a factor greater x2, then scaling back down.
| Source | x1 | x2 | x3 | x4 |
|---|---|---|---|---|
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| Scaled to original size |  |
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(200% normal size)
Here is an animated comparison of x1 and x2_scaled.
x1 produces jagged aliased lines, I don't recommend it.
Here is an animated comparison of source and x2_scaled.
If you look at the line just above the keypad, you can see the line reconstruction at work.
Gumball_x2_Stacked.mp4
gif-to-mp4_x2_stacked.mp4
Source for below comparisons.👇