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+/*-----------------------------------------------------------------
+LOG
+ GEM - Graphics Environment for Multimedia
+
+ Contours Bounding Rectangle detection
+
+ Copyright (c) 1997-1999 Mark Danks. mark@danks.org
+ Copyright (c) Günther Geiger. geiger@epy.co.at
+ Copyright (c) 2001-2002 IOhannes m zmoelnig. forum::für::umläute. IEM. zmoelnig@iem.kug.ac.at
+ Copyright (c) 2002 James Tittle & Chris Clepper
+ For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+
+-----------------------------------------------------------------*/
+// findchessboardcorners integration by Antoine Villeret - 2011
+
+#ifndef INCLUDE_PIX_OPENCV_FINDCHESSBOARDCORNERS_H_
+#define INCLUDE_PIX_OPENCV_FINDCHESSBOARDCORNERS_H_
+
+#ifndef _EiC
+#include "opencv2/legacy/legacy.hpp"
+#endif
+
+#include "Base/GemPixObj.h"
+
+#define MAX_MARKERS 500
+
+/*-----------------------------------------------------------------
+-------------------------------------------------------------------
+CLASS
+ pix_opencv_findchessboardcorners
+
+ Chessboard corners detection
+
+KEYWORDS
+ pix
+
+DESCRIPTION
+
+-----------------------------------------------------------------*/
+class GEM_EXPORT pix_opencv_findchessboardcorners : public GemPixObj
+{
+ CPPEXTERN_HEADER(pix_opencv_findchessboardcorners, GemPixObj)
+
+ public:
+
+ //////////
+ // Constructor
+ pix_opencv_findchessboardcorners();
+
+ protected:
+
+ //////////
+ // Destructor
+ virtual ~pix_opencv_findchessboardcorners();
+
+ //////////
+ // Do the processing
+ virtual void processRGBAImage(imageStruct &image);
+ virtual void processRGBImage(imageStruct &image);
+ virtual void processYUVImage(imageStruct &image);
+ virtual void processGrayImage(imageStruct &image);
+
+ /////////
+ // Setup
+ void patternSizeMess (int xsize, int ysize);
+
+
+ // to detect changes in the image size
+ int comp_xsize;
+ int comp_ysize;
+
+
+ CvSize pattern_size; // pattern size (inner corners count in 2D)
+ CvPoint2D32f *corners; // array to store corners coordinates
+ int cornerCount; // number of corners found
+ int flags; // flags for cvFindChessboardCorners
+ CvSize win; // half of the search window size for cvFindCornerSubPix
+ CvSize zero_zone; // for cvFindCornerSubPix
+ CvTermCriteria criteria; // for cvFindCornerSubPix
+ t_atom *coord_list;
+
+
+ private:
+
+ t_outlet *m_dataout;
+ //////////
+ // Static member functions
+ static void patternSizeMessCallback(void *data, t_floatarg xsize, t_floatarg ysize);
+
+
+ /////////
+ // IplImage needed
+ IplImage *rgb, *tmp_color, *gray, *tmp_gray;
+
+};
+
+#endif // for header file