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Better doc for WARP_RELATIVE_MAP #3754

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Better doc for WARP_RELATIVE_MAP #3754

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6 changes: 6 additions & 0 deletions modules/cudawarping/include/opencv2/cudawarping.hpp
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Expand Up @@ -70,6 +70,8 @@ namespace cv { namespace cuda {
@param ymap Y values. Only CV_32FC1 type is supported.
@param interpolation Interpolation method (see resize ). INTER_NEAREST , INTER_LINEAR and
INTER_CUBIC are supported for now.
The extra flag WARP_RELATIVE_MAP can be ORed to the interpolation method
(e.g. INTER_LINEAR | WARP_RELATIVE_MAP)
@param borderMode Pixel extrapolation method (see borderInterpolate ). BORDER_REFLECT101 ,
BORDER_REPLICATE , BORDER_CONSTANT , BORDER_REFLECT and BORDER_WRAP are supported for now.
@param borderValue Value used in case of a constant border. By default, it is 0.
Expand All @@ -79,6 +81,10 @@ The function transforms the source image using the specified map:

\f[\texttt{dst} (x,y) = \texttt{src} (xmap(x,y), ymap(x,y))\f]

with the WARP_RELATIVE_MAP flag :

\f[\texttt{dst} (x,y) = \texttt{src} (x+xmap(x,y),y+ymap(x,y))\f]

Values of pixels with non-integer coordinates are computed using the bilinear interpolation.

@sa remap
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