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

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/* The Histogram Feature Plane is a specialized feature plane which calculates a set of local histograms over the activations being sent to the feature plane.
These histograms are then used to calculate an estimate for the probability of a given filter response.  This value is assigned to the feature plane output.
Author: Calden Wloka
*/

#ifndef FEATUREPLANEHISTOGRAM_H_INCLUDED
#define FEATUREPLANEHISTOGRAM_H_INCLUDED

#include "FeaturePlane.h"
#include "Histogram.h"
#include <vector>

class FeaturePlaneHistogram : public FeaturePlane {
        friend class FeaturePlaneFactory;

protected:
        //constructor
        FeaturePlaneHistogram(Network* net, int l, QString* n, int w, int h, int angles, int speeds, int alpha, int speed, bool isWTA, bool visible, Neuron* neuron, NotifyStrategyAbstract* notify, int numBins); //<?> FOR WHEN TILED HISTOGRAMS WORK, int numHistsX, int NumHistsY);

        // histogram parameters 
        int numBins; // the number of bins in each histogram.  All histograms have the same bins so they can be combined as appropriate
        int numHistsX; // the number of histograms to tile in horizontal direction
        int numHistsY; // the number of histograms to tile in the vertical direction
        //vector<Histogram> histSet; // the set of local histograms which contribute to the feature plane probabilities
        Histogram* histSet; // <?> FOR NOW JUST USE ONE BIG HISTOGRAM, TILED HISTOGRAMS NOT YET IMPLEMENTED

        // overload the compute activations function in order to set the minVal and maxVal values
        // this in turn sets the binWidth
        void computeActivations();
        void computeActivations(PlaneInputs inputPlane, MatrixVector activations);

        // this takes all the activations from the filters (if it is a histogram filter, this is simply
        // the identity filter), produces histograms from the output, and then calculates an estimate of the probability
        // from the histograms
        void sumActivations(MatrixVector regularActivations, MatrixVector nonFourierActivations, Matrix* totalActivation);      
        void _sumActivations(MatrixVector activations, Matrix* totalActivation);

        //destructor
        ~FeaturePlaneHistogram();

};
#endif //FEATUREPLANEHISTOGRAM_H_INCLUDED