cosmetic changes, removed trailing spaces

modules/features2d/src/surf.cpp

@@ -567,7 +567,6 @@ struct SURFInvoker
                 DW[i*PATCH_SZ+j] = G_desc.at<float>(i,0) * G_desc.at<float>(j,0);
         }
     }
-    
     void operator()(const BlockedRange& range) const
     {
         /* X and Y gradient wavelet data */
@@ -576,7 +575,6 @@ struct SURFInvoker
         const int dy_s[NY][5] = {{0, 0, 4, 2, 1}, {0, 2, 4, 4, -1}};
         
         const int descriptor_size = params->extended ? 128 : 64;
-        
         /* Optimisation is better using nOriSampleBound than nOriSamples for 
          array lengths.  Maybe because it is a constant known at compile time */
         const int nOriSampleBound =(2*ORI_RADIUS+1)*(2*ORI_RADIUS+1);
@@ -591,32 +589,25 @@ struct SURFInvoker
         
         int k, k1 = range.begin(), k2 = range.end();
         int maxSize = 0;
-        
         for( k = k1; k < k2; k++ )
         {
             maxSize = std::max(maxSize, ((CvSURFPoint*)cvGetSeqElem( keypoints, k ))->size);
         }
-        
         maxSize = cvCeil((PATCH_SZ+1)*maxSize*1.2f/9.0f);
         Ptr<CvMat> winbuf = cvCreateMat( 1, maxSize > 0 ? maxSize*maxSize : 1, CV_8U );
-        
         for( k = k1; k < k2; k++ )
         {
             const int* sum_ptr = sum->data.i;
             int sum_cols = sum->cols;
             int i, j, kk, x, y, nangle;
-            
             float* vec;
             CvSurfHF dx_t[NX], dy_t[NY];
-            
             CvSURFPoint* kp = (CvSURFPoint*)cvGetSeqElem( keypoints, k );
             int size = kp->size;
             CvPoint2D32f center = kp->pt;
-            
             /* The sampling intervals and wavelet sized for selecting an orientation
              and building the keypoint descriptor are defined relative to 's' */
             float s = (float)size*1.2f/9.0f;
-            
             /* To find the dominant orientation, the gradients in x and y are
              sampled in a circle of radius 6s using wavelets of size 4s.
              We ensure the gradient wavelet size is even to ensure the 
@@ -680,19 +671,14 @@ struct SURFInvoker
                     besty = sumy;
                 }
             }
-            
             float descriptor_dir = cvFastArctan( besty, bestx );
             kp->dir = descriptor_dir;
-            
             if( !descriptors )
                 continue;
-            
             descriptor_dir *= (float)(CV_PI/180);
-            
             /* Extract a window of pixels around the keypoint of size 20s */
             int win_size = (int)((PATCH_SZ+1)*s);
             CV_Assert( winbuf->cols >= win_size*win_size );
-            
             CvMat win = cvMat(win_size, win_size, CV_8U, winbuf->data.ptr);
             float sin_dir = sin(descriptor_dir);
             float cos_dir = cos(descriptor_dir) ;