more warnings fixed. +some warnings in examples

samples/cpp/bagofwords_classification.cpp

@@ -855,7 +855,7 @@ void VocData::calcPrecRecall_impl(const vector<char>& ground_truth, const vector
     {
         recall_norm = recall_normalization;
     } else {
-        recall_norm = (int)std::count_if(ground_truth.begin(),ground_truth.end(),std::bind2nd(std::equal_to<bool>(),true));
+        recall_norm = (int)std::count_if(ground_truth.begin(),ground_truth.end(),std::bind2nd(std::equal_to<char>(),(char)1));
     }
 
     ap = 0;
@@ -985,7 +985,7 @@ void VocData::calcClassifierConfMatRow(const string& obj_class, const vector<Obd
         /* in order to calculate the total number of relevant images for normalization of recall
             it's necessary to extract the ground truth for the images under consideration */
         getClassifierGroundTruth(obj_class, images, ground_truth);
-        total_relevant = std::count_if(ground_truth.begin(),ground_truth.end(),std::bind2nd(std::equal_to<bool>(),true));
+        total_relevant = std::count_if(ground_truth.begin(),ground_truth.end(),std::bind2nd(std::equal_to<char>(),(char)1));
     }
 
     /* iterate through images */
@@ -2292,8 +2292,8 @@ void removeBowImageDescriptorsByCount( vector<ObdImage>& images, vector<Mat> bow
                                        const SVMTrainParamsExt& svmParamsExt, int descsToDelete )
 {
     RNG& rng = theRNG();
-    int pos_ex = std::count( objectPresent.begin(), objectPresent.end(), true );
-    int neg_ex = std::count( objectPresent.begin(), objectPresent.end(), false );
+    int pos_ex = std::count( objectPresent.begin(), objectPresent.end(), (char)1 );
+    int neg_ex = std::count( objectPresent.begin(), objectPresent.end(), (char)0 );
 
     while( descsToDelete != 0 )
     {

samples/cpp/kinect_maps.cpp

@@ -79,8 +79,8 @@ void colorizeDisparity( const Mat& gray, Mat& rgb, double maxDisp=-1.f, float S=
 float getMaxDisparity( VideoCapture& capture )
 {
     const int minDistance = 400; // mm
-    float b = capture.get( CV_CAP_OPENNI_DEPTH_GENERATOR_BASELINE ); // mm
-    float F = capture.get( CV_CAP_OPENNI_DEPTH_GENERATOR_FOCAL_LENGTH ); // pixels
+    float b = (float)capture.get( CV_CAP_OPENNI_DEPTH_GENERATOR_BASELINE ); // mm
+    float F = (float)capture.get( CV_CAP_OPENNI_DEPTH_GENERATOR_FOCAL_LENGTH ); // pixels
     return b * F / minDistance;
 }
 

samples/cpp/letter_recog.cpp

@@ -495,8 +495,8 @@ int build_knearest_classifier( char* data_filename, int K )
 
     int ok = read_num_class_data( data_filename, 16, &data, &responses );
     int nsamples_all = 0, ntrain_samples = 0;
-    int i, j;
-    double train_hr = 0, test_hr = 0;
+    //int i, j;
+    //double /*train_hr = 0,*/ test_hr = 0;
     CvANN_MLP mlp;
 
     if( !ok )
@@ -572,8 +572,8 @@ int build_nbayes_classifier( char* data_filename )
 
     int ok = read_num_class_data( data_filename, 16, &data, &responses );
     int nsamples_all = 0, ntrain_samples = 0;
-    int i, j;
-    double train_hr = 0, test_hr = 0;
+    //int i, j;
+    //double /*train_hr = 0, */test_hr = 0;
     CvANN_MLP mlp;
 
     if( !ok )
@@ -612,7 +612,7 @@ int build_nbayes_classifier( char* data_filename )
     CvMat *result = cvCreateMat(1, nsamples_all - ntrain_samples, CV_32FC1);
     (int)nbayes.predict(&sample, result);
     int true_resp = 0;
-    int accuracy = 0;
+    //int accuracy = 0;
     for (int i = 0; i < nsamples_all - ntrain_samples; i++)
     {
         if (result->data.fl[i] == true_results[i])

samples/cpp/multicascadeclassifier.cpp

@@ -155,7 +155,7 @@ void DetectAndDraw( Mat& img, CascadeClassifier& cascade)
         int radius;
         center.x = cvRound(r->x + r->width*0.5);
         center.y = cvRound(r->y + r->height*0.5);
-        radius = cvRound(r->width + r->height)*0.25;
+        radius = (int)(cvRound(r->width + r->height)*0.25);
         circle( img, center, radius, color, 3, 8, 0 );
     }
 

samples/cpp/points_classifier.cpp

@@ -493,7 +493,7 @@ int main()
 
     for(;;)
     {
-        uchar key = waitKey();
+        uchar key = (uchar)waitKey();
 
         if( key == 27 ) break;