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A lot of mobile cameras now take high resolution images (108 MP, 50 MP) and downsample them to something like 8 or 12 MP. Since this is done in the same way eve
by sorenjan 6y ago
A lot of mobile cameras now take high resolution images (108 MP, 50 MP) and downsample them to something like 8 or 12 MP. Since this is done in the same way every time I guess any systematic noise could still be detected, but it will be attenuated and even more difficult to find, and that's before JPEG compression, multiple frames fused for HDR, and so on.
Tying a specific camera to one or a few photos in a criminal case sounds extremely dubious. Natural images are full of different kinds of noise anyway, and each pixel only has 256 levels of intensity.