One common set of assumptions in image denoising is that: 1. The pixels in the output image should be close in value to the corresponding pixels in the input i

One common set of assumptions in image denoising is that: 1. The pixels in the output image should be close in value to the corresponding pixels in the input image. 2. Neighboring pixels in the output image should have similar values. I wonder if anyone has compared compression techniques using these sorts of assumptions.