Ranking of different Mean filters wr.t. response to salt noise, pepper noise and edge
| filter name | Response to salt noise | score | Response to pepper noise | score | Response to edge | comment | |
| AMF |
|
B+ |
|
B+ |
|
|
OK edge response (B+) |
| GMF |
|
A |
|
B- |
|
Best edge response (A) | |
| Midpoint |
|
C |
|
C |
|
|
Not good edge response (C) |
| Harmonic mean filter |
|
A |
|
C |
|
OK edge response (B) | |
| Median |
|
A+ |
|
A+ |
|
|
Not good edge response (D) |
| Maximum |
|
F |
|
A+ |
|
|
Not good edge response (D) |
| Minumum |
|
A+ |
|
F |
|
|
Not good edge response (F) |
| CHM, Q=1 |
|
B |
|
A |
|
Not too bad edge response (C) | |
| CHM, Q=2 |
|
C | A+ |
|
|
Not too bad edge response (C) |