Images come out wrong when using -s 2

Question

Ktr4ks opened this issue 2 years ago · 6 comments

While using the default scale of 4x, the output images come out correctly, but while using 2x something weird is happening.
Have a look:

Input

Output 2x

Output 4x

Answer 1 · 2022-07-18T06:30:35.000Z

me too

x1 (orig)

x2

x3

x4

Answer 2 · 2022-07-18T06:32:44.000Z

I would like to have 1x increase (to do noise reduction only) while this is being addressed.

Answer 3 · 2022-12-09T16:57:09.000Z

when i use realesrgan-x4plus-anime with -s 8 it also gets messy!

Answer 4 · 2022-12-31T00:06:47.000Z

Can confirm this is still happening

The -s argument only works for the default realesr-animevideov3 model and not for anything other that is provided

all other models are stuck at 4x scale

Steps to recreate:

realesrgan-ncnn-vulkan.exe -i input.jpg -o output.png -n realesrgan-x4plus -s 2

or

realesrgan-ncnn-vulkan.exe -i input.jpg -o output.png -n realesrgan-x4plus-anime -s 2

Output (for both):

Answer 5 · 2022-12-31T02:43:43.000Z

I narrowed this issue down to being an issue. It is because the model being used for is a 4x model which means that it can only be used for 4x scale

Answer 6 · 2023-01-31T18:36:06.000Z

I also created a duplicate issue #39

The fix for me was to use -f JPG