I should design and implement an adaptive filter to remove impulse noise from medical images! and i am new in image processing . and don't know how to design a filter! I have checked the predefined filters... they are not what i want! please help this is my B.S. project!
Impulse noise is usually dealt using the median filter.
To build adaptive filter I'd use the statistics to figure if there is something to smooth within the window.
I would work on the image using windows.
In each window I'd check the median and the mean.
If they are far away from each other I'd apply the median filter, otherwise, apply local LPF filter of do nothing.
It is simple...