Merge pull request #2011 from ilya-lavrenov:dft_dct

modules/core/doc/operations_on_arrays.rst

@@ -929,7 +929,7 @@ So, the function chooses an operation mode depending on the flags and size of th
 
     * When ``DFT_COMPLEX_OUTPUT`` is set, the output is a complex matrix of the same size as input.
 
-    * When ``DFT_COMPLEX_OUTPUT`` is not set, the output is a real matrix of the same size as input. In case of 2D transform, it uses the packed format as shown above. In case of a single 1D transform, it looks like the first row of the matrix above. In case of multiple 1D transforms (when using the ``DCT_ROWS``         flag), each row of the output matrix looks like the first row of the matrix above.
+    * When ``DFT_COMPLEX_OUTPUT`` is not set, the output is a real matrix of the same size as input. In case of 2D transform, it uses the packed format as shown above. In case of a single 1D transform, it looks like the first row of the matrix above. In case of multiple 1D transforms (when using the ``DFT_ROWS``         flag), each row of the output matrix looks like the first row of the matrix above.
 
  * If the input array is complex and either ``DFT_INVERSE``     or ``DFT_REAL_OUTPUT``     are not set, the output is a complex array of the same size as input. The function performs a forward or inverse 1D or 2D transform of the whole input array or each row of the input array independently, depending on the flags ``DFT_INVERSE`` and ``DFT_ROWS``.
 

modules/core/src/dxt.cpp

@@ -2284,7 +2284,7 @@ void cv::dct( InputArray _src0, OutputArray _dst, int flags )
 
     DCTFunc dct_func = dct_tbl[(int)inv + (depth == CV_64F)*2];
 
-    if( (flags & DFT_ROWS) || src.rows == 1 ||
+    if( (flags & DCT_ROWS) || src.rows == 1 ||
         (src.cols == 1 && (src.isContinuous() && dst.isContinuous())))
     {
         stage = end_stage = 0;
@@ -2304,7 +2304,7 @@ void cv::dct( InputArray _src0, OutputArray _dst, int flags )
         {
             len = src.cols;
             count = src.rows;
-            if( len == 1 && !(flags & DFT_ROWS) )
+            if( len == 1 && !(flags & DCT_ROWS) )
             {
                 len = src.rows;
                 count = 1;