$$\hat f(x, y) = g(x, y)-\frac{\sigma_n^2}{\sigma_L^2}\left[g(x, y)-m_L\right]$$
What are the meanings of the following terms:
- $m_L$
- ${\sigma_\eta}^2$
- ${\sigma_L}^2$
Here we see that $m_L$ is subtracted from the Image and then the whole term is multiplied by $\frac{{\sigma_\eta}^2}{{\sigma_L}^2} $. Then, the whole term is again subtracted from $g(x,y)$.
What does that actually mean?