remove warnings

modules/ccalib/samples/multi_cameras_calibration.cpp

@@ -34,11 +34,11 @@ static void help()
 
 int main(int argc, char** argv)
 {
-    float patternWidth, patternHeight;
-    int nCamera, nMiniMatches, cameraType;
+    float patternWidth = 0.0f, patternHeight = 0.0f;
+    int nCamera = 0, nMiniMatches = 0, cameraType = 0;
     const char* outputFilename = "multi-camera-results.xml";
     const char* inputFilename = 0;
-    int showFeatureExtraction, verbose;
+    int showFeatureExtraction = 0, verbose = 0;
     if (argc < 2)
     {
         help();

modules/ccalib/samples/omni_calibration.cpp

@@ -94,10 +94,9 @@ static bool readStringList( const string& filename, vector<string>& l )
     return true;
 }
 
-static void saveCameraParams( const string & filename, Size imageSize, Size boardSize, double square_width,
-    double square_height, int flags, const Mat& cameraMatrix, const Mat& distCoeffs, const double xi,
-    const vector<Vec3d>& rvecs, const vector<Vec3d>& tvecs, vector<string> detec_list, const Mat& idx,
-    const double rms, const vector<Mat>& imagePoints)
+static void saveCameraParams( const string & filename, int flags, const Mat& cameraMatrix,
+	const Mat& distCoeffs, const double xi, const vector<Vec3d>& rvecs, const vector<Vec3d>& tvecs,
+	vector<string> detec_list, const Mat& idx, const double rms, const vector<Mat>& imagePoints)
 {
     FileStorage fs( filename, FileStorage::WRITE );
 
@@ -172,7 +171,7 @@ int main(int argc, char** argv)
 {
     Size boardSize, imageSize;
     int flags = 0;
-    double square_width, square_height;
+    double square_width = 0.0, square_height = 0.0;
     const char* outputFilename = "out_camera_params.xml";
     const char* inputFilename = 0;
     vector<Mat> objectPoints;
@@ -253,6 +252,6 @@ int main(int argc, char** argv)
     TermCriteria criteria(3, 200, 1e-8);
     rms = omnidir::calibrate(objectPoints, imagePoints, imageSize, K, xi, D, rvecs, tvecs, flags, criteria, idx);
     _xi = xi.at<double>(0);
-    saveCameraParams(outputFilename, imageSize, boardSize, square_width, square_height, flags, K, D, _xi,
+    saveCameraParams(outputFilename, flags, K, D, _xi,
         rvecs, tvecs, detec_list, idx, rms, imagePoints);
 }

modules/ccalib/samples/omni_stereo_calibration.cpp

@@ -216,7 +216,7 @@ int main(int argc, char** argv)
 {
     Size boardSize, imageSize1, imageSize2;
     int flags = 0;
-    double square_width, square_height;
+    double square_width = 0.0, square_height = 0.0;
     const char* outputFilename = "out_camera_params_stereo.xml";
     const char* inputFilename1 = 0;
     const char* inputFilename2 = 0;

modules/ccalib/samples/random_pattern_calibration.cpp

@@ -92,13 +92,13 @@ static void saveCameraParams(const string& filename, Size imageSize, float patte
 
 int main(int argc, char** argv)
 {
-    const char* inputFilename;
+    const char* inputFilename = 0;
     const char* outputFilename = "out_camera_params.xml";
     vector<string> imglist;
     vector<Mat> vecImg;
     int flags = 0;
-    float patternWidth, patternHeight;
-    int nMiniMatches;
+    float patternWidth = 0.0f, patternHeight = 0.0f;
+    int nMiniMatches = 0;
     if(argc < 2)
     {
         help();
@@ -120,7 +120,7 @@ int main(int argc, char** argv)
         }
         else if (strcmp(s, "-mm") == 0)
         {
-            if (sscanf(argv[++i], "%d", &nMiniMatches) != 1 || nMiniMatches < 5)
+            if (sscanf(argv[++i], "%d", &nMiniMatches) != 1 || nMiniMatches < 15)
                 return fprintf( stderr, "Invalid number of minimal matches or number is too small"), -1;
         }
         else if( strcmp( s, "-fp" ) == 0 )

modules/ccalib/samples/random_pattern_generator.cpp

@@ -22,7 +22,7 @@ int main(int argc, char** argv)
 {
     const char* filename = 0;
     Mat pattern;
-    int width, height;
+    int width = 0, height = 0;
     if(argc < 2)
     {
         help();