The output image of the demo looks uncannily smooth, like an AI upscale. I feel it's what happens when you preserve edges but lose textures when trying to blow up an image past the amount of incoming data it has.
(EDIT) Denoising compares better at 100% zoom than 125% DPI zoom, and does make it easier to recognize the ferns at the bottom.
(EDIT) Denoising compares better at 100% zoom than 125% DPI zoom, and does make it easier to recognize the ferns at the bottom.