Ad van der Weiden / medianfilter

At each sample the oldest value in the window is replaced with the new value and it is checked if the new value affects the median, if so a new value for the median is selected.

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filter.h

00001 #ifndef FILTER_H
00002 #define FILTER_H
00003 
00004 class filter {
00005 public:
00006     virtual float process(float in) {
00007         return in;
00008     }
00009 };
00010 
00011 class medianFilter: public filter {
00012     int N;
00013     float *val;
00014     bool *big;
00015     int med, i;
00016     float median;
00017     int findmax();
00018     int findmin();
00019 public:
00020     medianFilter(int window = 3); //every window >= 1 is allowed but the behaviour for even window sizes is not well defined
00021     virtual float process(float);
00022 };
00023 
00024 #endif
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