#include "opencv2/highgui/highgui.hpp"#include "opencv2/imgproc/imgproc.hpp"#include <iostream>#include <stdio.h>using namespace std;using namespace cv;int main( int argc, char** argv ){ Mat src_base, hsv_base; Mat src_test1, hsv_test1; Mat src_test2, hsv_test2; Mat hsv_half_down; //加载三幅不同场景的图像 if( argc < 4 ) { printf("** Error. Usage: ./compareHist_Demo <image_settings0> <image_setting1> <image_settings2>\n"); return -1; } src_base = imread( argv[1], 1 ); src_test1 = imread( argv[2], 1 ); src_test2 = imread( argv[3], 1 ); //把输入图像转换为HSV格式 cvtColor( src_base, hsv_base, CV_BGR2HSV ); cvtColor( src_test1, hsv_test1, CV_BGR2HSV ); cvtColor( src_test2, hsv_test2, CV_BGR2HSV ); hsv_half_down = hsv_base( Range( hsv_base.rows/2, hsv_base.rows - 1 ), Range( 0, hsv_base.cols - 1 ) ); //用50个箱子表示色度，60个箱子表示饱和度 int h_bins = 50; int s_bins = 60; int histSize[] = { h_bins, s_bins }; // hue varies from 0 to 256, saturation from 0 to 180 float s_ranges[] = { 0, 256 }; float h_ranges[] = { 0, 180 }; const float* ranges[] = { h_ranges, s_ranges }; // Use the o-th and 1-st channels int channels[] = { 0, 1 }; //用MatND存储直方图 MatND hist_base; MatND hist_half_down; MatND hist_test1; MatND hist_test2; //计算HSV图像直方图并归一化 calcHist( &hsv_base, 1, channels, Mat(), hist_base, 2, histSize, ranges, true, false ); normalize( hist_base, hist_base, 0, 1, NORM_MINMAX, -1, Mat() ); calcHist( &hsv_half_down, 1, channels, Mat(), hist_half_down, 2, histSize, ranges, true, false ); normalize( hist_half_down, hist_half_down, 0, 1, NORM_MINMAX, -1, Mat() ); calcHist( &hsv_test1, 1, channels, Mat(), hist_test1, 2, histSize, ranges, true, false ); normalize( hist_test1, hist_test1, 0, 1, NORM_MINMAX, -1, Mat() ); calcHist( &hsv_test2, 1, channels, Mat(), hist_test2, 2, histSize, ranges, true, false ); normalize( hist_test2, hist_test2, 0, 1, NORM_MINMAX, -1, Mat() ); //应用直方图比较算法 for( int i = 0; i < 4; i++ ) { int compare_method = i; double base_base = compareHist( hist_base, hist_base, compare_method ); double base_half = compareHist( hist_base, hist_half_down, compare_method ); double base_test1 = compareHist( hist_base, hist_test1, compare_method ); double base_test2 = compareHist( hist_base, hist_test2, compare_method ); printf( " Method [%d] Perfect, Base-Half, Base-Test(1), Base-Test(2) : %f, %f, %f, %f \n", i, base_base, base_half , base_test1, base_test2 ); } printf( "Done \n" ); return 0;}
