Why is there a strange color block

[9754-laugh]

1.The command used is the default ：./realesrgan-ncnn-vulkan -i tmp_frames -o out_frames -n realesr-animevideov3 -s 2 -f jpg 2.System is ubuntu 20.04 3.Using the linux portable program

All the inferred pictures look like this!

The server does not have a GPU purely using the CPU to reason, I have tested multiple servers, are unable to reason properly Please help me, I'm dying from this problem

[q009]

I found similar color artifacts under Ubuntu as well. Windows version doesn't seem to suffer from it.

[martinholecekmax]

Did you try --fp32 flag? It might be caused by floating-point precision. I believe that the model is trained using half-precision (FP16) arithmetic. It could be that the platform you run does not have good FP16 support. I had a similar issue on Ubuntu until I changed this flag.

[LuckyNES]

I noticed on Linux it's defaulting to realesr-animevideov3 instead of realesrgan-x4plus