Additional cast warnings resolved

modules/line_descriptor/samples/knn_matching.cpp

@@ -111,7 +111,7 @@ uchar invertSingleBits( uchar dividend_char, int numBits )
   /* reconvert to decimal */
   uchar result = 0;
   for ( int i = (int) bin_vector.size() - 1; i >= 0; i-- )
-    result += bin_vector[i] * pow( 2, i );
+    result += (uchar) ( bin_vector[i] * pow( 2, i ) );
 
   return result;
 }
@@ -162,7 +162,7 @@ int main( int argc, char** argv )
   Mat descr2Copy = descr1.clone();
 
   /* randomly change some bits in original descriptors */
-  srand( time( NULL ) );
+  srand( (unsigned int) time( NULL ) );
 
   for ( int j = 0; j < descr1.rows; j++ )
   {

modules/line_descriptor/src/LSDDetector.cpp

@@ -167,15 +167,15 @@ void LSDDetector::detectImpl( const Mat& imageSrc, std::vector<KeyLine>& keyline
       checkLineExtremes( extremes, gaussianPyrs[j].size() );
 
       /* fill KeyLine's fields */
-      kl.startPointX = extremes[0];
-      kl.startPointY = extremes[1];
-      kl.endPointX = extremes[2];
-      kl.endPointY = extremes[3];
-      kl.sPointInOctaveX = extremes[0];
-      kl.sPointInOctaveY = extremes[1];
-      kl.ePointInOctaveX = extremes[2];
-      kl.ePointInOctaveY = extremes[3];
-      kl.lineLength = sqrt( pow( extremes[0] - extremes[2], 2 ) + pow( extremes[1] - extremes[3], 2 ) );
+      kl.startPointX = (float) extremes[0];
+      kl.startPointY = (float) extremes[1];
+      kl.endPointX = (float) extremes[2];
+      kl.endPointY = (float) extremes[3];
+      kl.sPointInOctaveX = (float) extremes[0];
+      kl.sPointInOctaveY = (float) extremes[1];
+      kl.ePointInOctaveX = (float) extremes[2];
+      kl.ePointInOctaveY = (float) extremes[3];
+      kl.lineLength = (float) sqrt( pow( extremes[0] - extremes[2], 2 ) + pow( extremes[1] - extremes[3], 2 ) );
 
       /* compute number of pixels covered by line */
       LineIterator li( gaussianPyrs[j], Point( extremes[0], extremes[1] ), Point( extremes[2], extremes[3] ) );
@@ -186,7 +186,7 @@ void LSDDetector::detectImpl( const Mat& imageSrc, std::vector<KeyLine>& keyline
       kl.octave = j;
       kl.size = ( kl.endPointX - kl.startPointX ) * ( kl.endPointY - kl.startPointY );
       kl.response = kl.lineLength / max( gaussianPyrs[j].cols, gaussianPyrs[j].rows );
-      kl.pt = Point( ( kl.endPointX + kl.startPointX ) / 2, ( kl.endPointY + kl.startPointY ) / 2 );
+      kl.pt = Point2f( ( kl.endPointX + kl.startPointX ) / 2, ( kl.endPointY + kl.startPointY ) / 2 );
 
       keylines.push_back( kl );
     }
@@ -198,7 +198,7 @@ void LSDDetector::detectImpl( const Mat& imageSrc, std::vector<KeyLine>& keyline
     for ( size_t keyCounter = 0; keyCounter < keylines.size(); keyCounter++ )
     {
       KeyLine kl = keylines[keyCounter];
-      if( mask.at<uchar>( kl.startPointY, kl.startPointX ) == 0 && mask.at<uchar>( kl.endPointY, kl.endPointX ) == 0 )
+      if( mask.at<uchar>( (int)kl.startPointY, (int)kl.startPointX ) == 0 && mask.at<uchar>( (int)kl.endPointY, (int)kl.endPointX ) == 0 )
         keylines.erase( keylines.begin() + keyCounter );
     }
   }

modules/line_descriptor/src/ed_line_detector.cpp

@@ -948,14 +948,15 @@ int EDLineDetector::EDline( cv::Mat &image, LineChains &lines, bool smoothed )
   unsigned int *pLineYCors = lines.yCors.data();
   unsigned int *pLineSID = lines.sId.data();
   logNT_ = 2.0 * ( log10( (double) imageWidth ) + log10( (double) imageHeight ) );
-  double lineFitErr;		//the line fit error;
+  double lineFitErr = 0;		//the line fit error;
   std::vector<double> lineEquation( 2, 0 );
   lineEquations_.clear();
   lineEndpoints_.clear();
   lineDirection_.clear();
   unsigned char *pdirImg = dirImg_.data;
   unsigned int numOfLines = 0;
-  unsigned int offsetInEdgeArrayS, offsetInEdgeArrayE, newOffsetS;		//start index and end index
+  unsigned int newOffsetS = 0;
+  unsigned int offsetInEdgeArrayS, offsetInEdgeArrayE;		//start index and end index
   unsigned int offsetInLineArray = 0;
   float direction;		//line direction
 
@@ -977,7 +978,7 @@ int EDLineDetector::EDline( cv::Mat &image, LineChains &lines, bool smoothed )
         break;  //no line is detected
       //An initial line segment is detected. Try to extend this line segment
       pLineSID[numOfLines] = offsetInLineArray;
-      double coef1;			//for a line ax+by+c=0, coef1 = 1/sqrt(a^2+b^2);
+      double coef1 = 0;			//for a line ax+by+c=0, coef1 = 1/sqrt(a^2+b^2);
       double pointToLineDis;			//for a line ax+by+c=0 and a point(xi, yi), pointToLineDis = coef1*|a*xi+b*yi+c|
       bool bExtended = true;
       bool bFirstTry = true;