C:/Users/albertlr/projects/TarzaNN/TarzaNN/Histogram.h

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/* The Histogram class is an array-based class which calculates and stores a histogram of filter responses over an image.
Author: Calden Wloka
*/

#ifndef HISTOGRAM_H_INCLUDED
#define HISTOGRAM_H_INCLUDED

#include "common.h"

class Histogram {
        friend class FeaturePlaneHistogram;

protected:
        //constructor
        Histogram(int numBins);

        // histogram parameters 
        float minVal; //the minimum edge of the minimum value bin
        float maxVal; //the maximum edge of the maximum value bin
        float binWidth; // the range of values going into each bin
        int numBins; // the number of bins in the histogram
        int numSamples; // the number of total samples which have been included in the histogram.
        float *histArray; // the actual histogram array

        // set the parameters all at once
        void setParams(float minVal, float maxVal);

        // add an element to the histogram
        void addElement(float value);

        // return the probability value for the bin in which value falls
        float returnProb(float value);
        
        // finalize the histogram to be a probability map
        void finalizeHistogram();

        //destructor
        ~Histogram();
};


#endif /*HISTOGRAM_H_INCLUDED*/