fixed h / s ranges in histogram_calculation tutorial

literalinclude

literalinclude, dropped :lines:

doc/tutorials/imgproc/histograms/histogram_comparison/histogram_comparison.rst

@@ -84,88 +84,10 @@ Code
 
    * **Code at glance:**
 
-.. code-block:: cpp
-
-   #include "opencv2/highgui/highgui.hpp"
-   #include "opencv2/imgproc/imgproc.hpp"
-   #include <iostream>
-   #include <stdio.h>
-
-   using namespace std;
-   using namespace cv;
-
-   /** @function main */
-   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;
-
-     /// Load three images with different environment settings
-     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 );
-
-     /// Convert to HSV
-     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 ) );
-
-     /// Using 30 bins for hue and 32 for saturation
-     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 h_ranges[] = { 0, 256 };
-     float s_ranges[] = { 0, 180 };
-
-     const float* ranges[] = { h_ranges, s_ranges };
-
-     // Use the o-th and 1-st channels
-     int channels[] = { 0, 1 };
-
-     /// Histograms
-     MatND hist_base;
-     MatND hist_half_down;
-     MatND hist_test1;
-     MatND hist_test2;
-
-     /// Calculate the histograms for the HSV images
-     calcHist( &hsv_base, 1, channels, Mat(), hist_base, 2, histSize, ranges, true, false );
-     normalize( hist_base, hist_base, 0, 1, NORM_MINMAX, -1, Mat() );
+.. literalinclude:: ../../../../../samples/cpp/tutorial_code/Histograms_Matching/compareHist_Demo.cpp
+   :language: cpp
+   :tab-width: 4
 
-     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() );
-
-     /// Apply the histogram comparison methods
-     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;
-    }
 
 
 Explanation
@@ -211,11 +133,11 @@ Explanation
 
    .. code-block:: cpp
 
-     int h_bins = 50; int s_bins = 32;
+     int h_bins = 50; int s_bins = 60;
      int histSize[] = { h_bins, s_bins };
 
-     float h_ranges[] = { 0, 256 };
-     float s_ranges[] = { 0, 180 };
+     float h_ranges[] = { 0, 180 };
+     float s_ranges[] = { 0, 256 };
 
      const float* ranges[] = { h_ranges, s_ranges };
 

samples/cpp/tutorial_code/Histograms_Matching/compareHist_Demo.cpp

@@ -40,13 +40,13 @@ int main( int argc, char** argv )
 
     hsv_half_down = hsv_base( Range( hsv_base.rows/2, hsv_base.rows - 1 ), Range( 0, hsv_base.cols - 1 ) );
 
-    /// Using 30 bins for hue and 32 for saturation
+    /// Using 50 bins for hue and 60 for saturation
     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 };
+    // hue varies from 0 to 179, saturation from 0 to 255
     float h_ranges[] = { 0, 180 };
+    float s_ranges[] = { 0, 256 };
 
     const float* ranges[] = { h_ranges, s_ranges };