About Upscayl: Upscayl uses Real-ESRGAN NCNN-Vulkan for AI-powered image upscaling. According to their website, it can restore pixelated images and enhance low-resolution photos. This test will verify if it also removes noise/scratches or only upscales.
Note: Requires the Upscayl NCNN binary (realesrgan-ncnn-vulkan) to be installed locally. Processing may take 30-60 seconds on CPU.