test

test.c

#include <cv.h>
#include <highgui.h>
#include <stdio.h>
#include <stdlib.h>

int HistogramBins = 256;
float HistogramRange1[2]={0,255};
float *HistogramRange[1]={&HistogramRange1[0]};

int main()
{
    IplImage *Image1=cvLoadImage("RiverBank.jpg",0);
    IplImage *Image2=cvLoadImage("DarkClouds.jpg",0);

    CvHistogram *Histogram1=cvCreateHist(1,&HistogramBins,CV_HIST_ARRAY,HistogramRange);
    CvHistogram *Histogram2=cvCreateHist(1,&HistogramBins,CV_HIST_ARRAY,HistogramRange);

    cvCalcHist(&Image1,Histogram1);
    cvCalcHist(&Image2,Histogram2);

    cvNormalizeHist(Histogram1,1);
    cvNormalizeHist(Histogram2,1);

    printf("CV_COMP_CORREL : %.4f\n",cvCompareHist(Histogram1,Histogram2,CV_COMP_CORREL));
    printf("CV_COMP_CHISQR : %.4f\n",cvCompareHist(Histogram1,Histogram2,CV_COMP_CHISQR));
    printf("CV_COMP_INTERSECT : %.4f\n",cvCompareHist(Histogram1,Histogram2,CV_COMP_INTERSECT));
    printf("CV_COMP_BHATTACHARYYA : %.4f\n",cvCompareHist(Histogram1,Histogram2,CV_COMP_BHATTACHARYYA));

    cvNamedWindow("Image1",1);
    cvNamedWindow("Image2",1);
    cvShowImage("Image1",Image1);
    cvShowImage("Image2",Image2);
    cvWaitKey(0);
}