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> images from real (noisy, low-res) cameras But these won't compress well _losslessly_ in principle, would they? Or did you manage to find a format that did i
by eps 5y ago
> images from real (noisy, low-res) cameras
But these won't compress well _losslessly_ in principle, would they?
Or did you manage to find a format that did in fact work well?
- rsp1984 5y agoPNG works quite well on these kinds of images too.
- eps 5y agoDo you have any specific examples you can share? PNG should not be able to compress noisy images well, because noise removes patterning. JPEG obviously can, but exactly because it is lossy.
- lifthrasiir 5y agoPNG can't transform noisy images into something more compressible, but it uses better entropy coding compared to QOI.
- minimalc 5y agoI haven't evaluated this personally but the (close to?) lossless raw sensor image compression from Dotphoton [1] seems like an interesting approach for getting around the issue of sensor noise in image compression. However the implementation details are disappointly vague, as it's a proprietary product. [1]https://dotphoton.com/ https://dotphoton.com/