diff --git a/modules/imgproc/include/opencv2/imgproc.hpp b/modules/imgproc/include/opencv2/imgproc.hpp index d8ded742c..2eecb9af2 100644 --- a/modules/imgproc/include/opencv2/imgproc.hpp +++ b/modules/imgproc/include/opencv2/imgproc.hpp @@ -225,8 +225,10 @@ enum MorphTypes{ //!< \f[\texttt{dst} = \mathrm{morph\_grad} ( \texttt{src} , \texttt{element} )= \mathrm{dilate} ( \texttt{src} , \texttt{element} )- \mathrm{erode} ( \texttt{src} , \texttt{element} )\f] MORPH_TOPHAT = 5, //!< "top hat" //!< \f[\texttt{dst} = \mathrm{tophat} ( \texttt{src} , \texttt{element} )= \texttt{src} - \mathrm{open} ( \texttt{src} , \texttt{element} )\f] - MORPH_BLACKHAT = 6 //!< "black hat" + MORPH_BLACKHAT = 6, //!< "black hat" //!< \f[\texttt{dst} = \mathrm{blackhat} ( \texttt{src} , \texttt{element} )= \mathrm{close} ( \texttt{src} , \texttt{element} )- \texttt{src}\f] + MORPH_HITMISS = 7 //!< "hit and miss" + //!< .- Only supported for CV_8UC1 binary images. Tutorial can be found in [this page](http://opencv-code.com/tutorials/hit-or-miss-transform-in-opencv/) }; //! shape of the structuring element diff --git a/modules/imgproc/src/morph.cpp b/modules/imgproc/src/morph.cpp index 1ec1d25bf..0b2b613af 100644 --- a/modules/imgproc/src/morph.cpp +++ b/modules/imgproc/src/morph.cpp @@ -1870,6 +1870,8 @@ void cv::morphologyEx( InputArray _src, OutputArray _dst, int op, _dst.create(src.size(), src.type()); Mat dst = _dst.getMat(); + Mat k1, k2, e1, e2; //only for hit and miss op + switch( op ) { case MORPH_ERODE: @@ -1905,6 +1907,22 @@ void cv::morphologyEx( InputArray _src, OutputArray _dst, int op, erode( temp, temp, kernel, anchor, iterations, borderType, borderValue ); dst = temp - src; break; + case MORPH_HITMISS: + CV_Assert(src.type() == CV_8U && src.channels() == 1); + k1 = (kernel == 1) / 255; + k2 = (kernel == -1) / 255; + normalize(src, src, 0, 1, NORM_MINMAX); + if (countNonZero(k1) <= 0) + e1 = src; + else + erode(src, e1, k1, anchor, iterations, borderType, borderValue); + if (countNonZero(k2) <= 0) + e2 = src; + else + erode(1 - src, e2, k2, anchor, iterations, borderType, borderValue); + dst = e1 & e2; + normalize(dst, dst, 0, 255, NORM_MINMAX); + break; default: CV_Error( CV_StsBadArg, "unknown morphological operation" ); }