R-esrgan 4x Upscaler < Tested & Working >

You can run R-ESRGAN locally via Python (PyTorch), through GUI tools like Upscayl or ChaiNNer , or via various online demo sites. For a 4x upscale of a 1080p image to 4K, expect a processing time of 5–20 seconds on a modern GPU.

The "4x" designation refers to its ability to scale both the width and height of an image by four times, resulting in 16 times the total pixel count. r-esrgan 4x upscaler