Is median filter better than any other filter (mean, averaging etc)? Why?

I want to know why median filter is used frequently as image filter?

Answer 1

[Image Analyst]

It's claim to fame is that it removes noise while keeping edges sharper than other filters like mean/averaging.

[Md. Sabir Hossain]

Thank you for your answer.

Answer 2

[Jan]

This is not a Matlab question. If you ask your favorite internet search engine, you will find explanations here:

• https://en.wikipedia.org/wiki/Median_filter
• http://homepages.inf.ed.ac.uk/rbf/HIPR2/median.htm
• http://www.mathworks.com/help/images/ref/medfilt2.html