When building the simulation image, the noise function of MATLAB is first used to add Gaussian noise (𝑁~(𝜇,𝜎)N~μ,σ) to a blank 256×256256×256 image to obtain the background 𝐵B. The mean value 𝜇μ and the standard deviation 𝜎σ of the background are 90 and 10, ...