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+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+#
+
+# GEOM ShapeRecognition : tools for the shape recognition
+# File : Makefile.am
+# Author : Renaud NEDELEC (OCC)
+# Module : GEOM
+#
+
+# Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+#
+
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+ $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$f"; \
+ done
+
+clean-libLTLIBRARIES:
+ -test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+ @list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+ dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+ test "$$dir" != "$$p" || dir=.; \
+ echo "rm -f \"$${dir}/so_locations\""; \
+ rm -f "$${dir}/so_locations"; \
+ done
+libGEOMShapeRec.la: $(libGEOMShapeRec_la_OBJECTS) $(libGEOMShapeRec_la_DEPENDENCIES)
+ $(libGEOMShapeRec_la_LINK) -rpath $(libdir) $(libGEOMShapeRec_la_OBJECTS) $(libGEOMShapeRec_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT)
+
+distclean-compile:
+ -rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libGEOMShapeRec_la-ShapeRec_FeatureDetector.Plo@am__quote@
+
+.cxx.o:
+@am__fastdepCXX_TRUE@ $(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCXX_TRUE@ $(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@ $(CXXCOMPILE) -c -o $@ $<
+
+.cxx.obj:
+@am__fastdepCXX_TRUE@ $(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCXX_TRUE@ $(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@ $(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cxx.lo:
+@am__fastdepCXX_TRUE@ $(LTCXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCXX_TRUE@ $(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@ $(LTCXXCOMPILE) -c -o $@ $<
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+libGEOMShapeRec_la-ShapeRec_FeatureDetector.lo: ShapeRec_FeatureDetector.cxx
+@am__fastdepCXX_TRUE@ $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libGEOMShapeRec_la_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libGEOMShapeRec_la-ShapeRec_FeatureDetector.lo -MD -MP -MF $(DEPDIR)/libGEOMShapeRec_la-ShapeRec_FeatureDetector.Tpo -c -o libGEOMShapeRec_la-ShapeRec_FeatureDetector.lo `test -f 'ShapeRec_FeatureDetector.cxx' || echo '$(srcdir)/'`ShapeRec_FeatureDetector.cxx
+@am__fastdepCXX_TRUE@ $(am__mv) $(DEPDIR)/libGEOMShapeRec_la-ShapeRec_FeatureDetector.Tpo $(DEPDIR)/libGEOMShapeRec_la-ShapeRec_FeatureDetector.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@ source='ShapeRec_FeatureDetector.cxx' object='libGEOMShapeRec_la-ShapeRec_FeatureDetector.lo' libtool=yes @AMDEPBACKSLASH@
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+
+mostlyclean-libtool:
+ -rm -f *.lo
+
+clean-libtool:
+ -rm -rf .libs _libs
+install-salomeincludeHEADERS: $(salomeinclude_HEADERS)
+ @$(NORMAL_INSTALL)
+ test -z "$(salomeincludedir)" || $(MKDIR_P) "$(DESTDIR)$(salomeincludedir)"
+ @list='$(salomeinclude_HEADERS)'; test -n "$(salomeincludedir)" || list=; \
+ for p in $$list; do \
+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+ echo "$$d$$p"; \
+ done | $(am__base_list) | \
+ while read files; do \
+ echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(salomeincludedir)'"; \
+ $(INSTALL_HEADER) $$files "$(DESTDIR)$(salomeincludedir)" || exit $$?; \
+ done
+
+uninstall-salomeincludeHEADERS:
+ @$(NORMAL_UNINSTALL)
+ @list='$(salomeinclude_HEADERS)'; test -n "$(salomeincludedir)" || list=; \
+ files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+ test -n "$$files" || exit 0; \
+ echo " ( cd '$(DESTDIR)$(salomeincludedir)' && rm -f" $$files ")"; \
+ cd "$(DESTDIR)$(salomeincludedir)" && rm -f $$files
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+ END { if (nonempty) { for (i in files) print i; }; }'`; \
+ mkid -fID $$unique
+tags: TAGS
+
+TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ set x; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+ END { if (nonempty) { for (i in files) print i; }; }'`; \
+ shift; \
+ if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+ test -n "$$unique" || unique=$$empty_fix; \
+ if test $$# -gt 0; then \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ "$$@" $$unique; \
+ else \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ $$unique; \
+ fi; \
+ fi
+ctags: CTAGS
+CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+ END { if (nonempty) { for (i in files) print i; }; }'`; \
+ test -z "$(CTAGS_ARGS)$$unique" \
+ || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+ $$unique
+
+GTAGS:
+ here=`$(am__cd) $(top_builddir) && pwd` \
+ && $(am__cd) $(top_srcdir) \
+ && gtags -i $(GTAGS_ARGS) "$$here"
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
+installdirs:
+ for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(salomeincludedir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-salomeincludeHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool mostlyclean-local
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES uninstall-salomeincludeHEADERS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+ clean-libLTLIBRARIES clean-libtool ctags distclean \
+ distclean-compile distclean-generic distclean-libtool \
+ distclean-tags distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-dvi \
+ install-dvi-am install-exec install-exec-am install-html \
+ install-html-am install-info install-info-am \
+ install-libLTLIBRARIES install-man install-pdf install-pdf-am \
+ install-ps install-ps-am install-salomeincludeHEADERS \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+ mostlyclean-local pdf pdf-am ps ps-am tags uninstall \
+ uninstall-am uninstall-libLTLIBRARIES \
+ uninstall-salomeincludeHEADERS
+
+
+# common rules
+
+# meta object implementation files generation (moc)
+%_moc.cxx: %.h
+ $(MOC) $< -o $@
+
+# translation (*.qm) files generation (lrelease)
+%.qm: %.ts
+ $(LRELEASE) $< -qm $@
+
+# resource files generation (qrcc)
+qrc_%.cxx: %.qrc
+ $(QRCC) $< -o $@ -name $(*F)
+
+# qt forms files generation (uic)
+ui_%.h: %.ui
+ $(UIC) -o $@ $<
+
+# customize clean operation
+mostlyclean-local:
+ rm -f @builddir@/*_moc.cxx
+ rm -f @builddir@/*.qm
+ rm -f @builddir@/ui_*.h
+ rm -f @builddir@/qrc_*.cxx
+
+# tests
+tests: unittest
+
+unittest: $(UNIT_TEST_PROG)
+ @if test "x$(UNIT_TEST_PROG)" != "x"; then \
+ $(UNIT_TEST_PROG); \
+ fi;
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+// Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+
+// File : ShapeRec_FeatureDetector.cxx
+// Author : Renaud NEDELEC, Open CASCADE S.A.S.
+
+#include "ShapeRec_FeatureDetector.hxx"
+#include <stdio.h>
+#include "utilities.h"
+
+using namespace cv;
+
+//TODO : All the following methods but ComputeContours use the C API of OpenCV while ComputContours
+// uses the C++ API of the library.
+// This should be homogenized and preferably by using the C++ API (which is more recent for all the methods
+
+// The code has to be "cleaned up" too
+
+/*!
+ Constructor
+ \param theFilename - image to process
+*/
+ShapeRec_FeatureDetector::ShapeRec_FeatureDetector(const QString& theFilename):
+ corners()
+{
+ cornerCount = 2000;
+ rect=cvRect(0,0,0,0);
+ imagePath = theFilename.toStdString();
+ // Store the dimensions of the picture
+ IplImage* bg_img = cvLoadImage (imagePath.c_str(), CV_LOAD_IMAGE_GRAYSCALE);
+ imgHeight = bg_img->height;
+ imgWidth = bg_img->width;
+}
+
+/*!
+ Computes the corners of the image located at imagePath
+*/
+void ShapeRec_FeatureDetector::ComputeCorners(){
+
+ // Parameters for the corner detection
+ double qualityLevel = 0.2;
+ double minDistance = 1;
+
+ // Images to be used for detection
+ IplImage *eig_img, *temp_img, *src_img_gray;
+
+ // Load image
+ src_img_gray = cvLoadImage (imagePath.c_str(), CV_LOAD_IMAGE_GRAYSCALE);
+
+ if ( rect.width > 1 )
+ {
+ // If a ROI as been set use it for detection
+ cvSetImageROI( src_img_gray, rect );
+ }
+
+ eig_img = cvCreateImage (cvGetSize (src_img_gray), IPL_DEPTH_32F, 1);
+ temp_img = cvCreateImage (cvGetSize (src_img_gray), IPL_DEPTH_32F, 1);
+ corners = (CvPoint2D32f *) cvAlloc (cornerCount * sizeof (CvPoint2D32f));
+
+ // image height and width
+ imgHeight = src_img_gray->height;
+ imgWidth = src_img_gray->width;
+
+ // Corner detection using cvCornerMinEigenVal
+ // (one of the methods available inOpenCV, there is also a cvConerHarris method that can be used by setting a flag in cvGoodFeaturesToTrack)
+ cvGoodFeaturesToTrack (src_img_gray, eig_img, temp_img, corners, &cornerCount, /*quality-level=*/qualityLevel, /*min-distance=*/minDistance);
+ cvFindCornerSubPix (src_img_gray, corners, cornerCount,
+ cvSize (3, 3), cvSize (-1, -1), cvTermCriteria (CV_TERMCRIT_ITER | CV_TERMCRIT_EPS, 20, 0.03));
+
+ cvReleaseImage (&eig_img);
+ cvReleaseImage (&temp_img);
+ cvReleaseImage (&src_img_gray);
+
+}
+
+/*!
+ Computes the contours of the image located at imagePath
+*/
+bool ShapeRec_FeatureDetector::ComputeContours( int detection_method ){
+
+ // Initialising images
+ Mat src, src_gray;
+ Mat detected_edges;
+
+ // Read image
+ src = imread( imagePath.c_str() );
+ if( !src.data )
+ return false;
+
+ if ( detection_method == CANNY ) // The problem is that with that filter the detector detects double contours
+ {
+ // Thresholds for Canny detector
+ int lowThreshold = 100;
+ int ratio = 3;
+ int kernel_size = 3; // 3,5 or 7
+
+ // Convert the image to grayscale
+ if (src.channels() == 3)
+ cvtColor( src, src_gray, CV_BGR2GRAY );
+ else if (src.channels() == 1)
+ src_gray = src;
+
+ // Reduce noise with a kernel 3x3
+ blur( src_gray, detected_edges, Size(3,3) );
+ // Canny detector
+ Canny( detected_edges, detected_edges, lowThreshold, lowThreshold*ratio, kernel_size, /*L2gradient =*/true );
+ }
+ else if ( detection_method == COLORFILTER )
+ {
+ if ( !rect.width > 1 )
+ return false;
+ detected_edges = _colorFiltering();
+ }
+ else if ( detection_method == RIDGE_DETECTOR ) // Method adapted for engineering drawings (e.g. watershed functionnality could be used here cf.OpenCV documentation and samples)
+ {
+ // TODO
+ return false;
+ }
+ _detectAndRetrieveContours( detected_edges );
+
+ return true;
+
+}
+
+/*!
+ Computes the lines in the image located at imagePath
+*/
+bool ShapeRec_FeatureDetector::ComputeLines(){
+ MESSAGE("ShapeRec_FeatureDetector::ComputeLines()")
+ // Initialising images
+ Mat src, src_gray, detected_edges, dst;
+
+ src=imread(imagePath.c_str(), 0);
+
+ Canny( src, dst, 50, 200, 3 );
+ HoughLinesP( dst, lines, 1, CV_PI/180, 80, 30, 10 );
+ return true;
+
+}
+
+/*!
+ Stores a region of interest given by user in rect
+ \param theRect - Region Of Interest of the image located at imagePath
+*/
+void ShapeRec_FeatureDetector::SetROI( const QRect& theRect )
+{
+ if (!theRect.isEmpty()){
+ rect = cvRect(theRect.x(),theRect.y(),theRect.width(),theRect.height());
+ }
+}
+
+/*!
+ Performs contours detection and store them in contours
+ \param src - src image to find contours of
+*/
+void ShapeRec_FeatureDetector::_detectAndRetrieveContours( Mat src )
+{
+ src = src > 1;
+ int method = CV_CHAIN_APPROX_NONE;
+ findContours( src, contours, hierarchy,CV_RETR_CCOMP, method);
+ // Other possible approximations CV_CHAIN_APPROX_TC89_KCOS, CV_CHAIN_APPROX_TC89_L1, CV_CHAIN_APPROX_SIMPLE cf. OpenCV documentation
+ // for precise information
+}
+
+/*!
+ Performs color filtering from the image sample contained in the ROI rect of the image
+ located at imagePath
+ Thresholds the result in order ot obtain a binary image
+ \return binary image resulting from filtering and thersholding
+*/
+Mat ShapeRec_FeatureDetector::_colorFiltering()
+{
+ IplImage* find_image = cvLoadImage(imagePath.c_str(),CV_LOAD_IMAGE_COLOR);
+ // Reduce noise with a kernel 3x3
+ cvSmooth( find_image, find_image, CV_GAUSSIAN, 3, 3 );
+
+ if ( !rect.width > 1 )
+ return Mat(find_image);
+
+ // Crop the image to build an histogram from the selected part
+ cvSetImageROI(find_image, rect);
+ IplImage* test_image = cvCreateImage(cvGetSize(find_image),
+ find_image->depth,
+ find_image->nChannels);
+ cvCopy(find_image, test_image, NULL);
+ cvResetImageROI(find_image);
+
+ IplImage* test_hsv = cvCreateImage(cvGetSize(test_image),8,3);
+ IplImage* test_hue = cvCreateImage(cvGetSize(test_image),8,1);
+ CvHistogram* hist;
+
+ cvCvtColor(test_image, test_hsv, CV_BGR2HSV);
+ cvCvtPixToPlane(test_hsv, test_hue, 0, 0, 0);
+
+ //create hist
+ int size_hist = 10;
+ float hranges[] = {0, 180};
+ float* ranges = hranges;
+ hist = cvCreateHist(1, &size_hist, CV_HIST_ARRAY, &ranges, 1);
+
+ //calculate hue` histogram
+ cvCalcHist(&test_hue, hist, 0 ,0);
+
+// // TEST print of the histogram for debugging
+// IplImage* hist_image = cvCreateImage(cvSize(320,300),8,3);
+//
+// //draw hist on hist_test image.
+// cvZero(hist_image);
+// float max_value = 0;
+// cvGetMinMaxHistValue(hist, 0 , &max_value, 0, 0);
+// int bin_w = hist_image->width/size_hist;
+// for(int i = 0; i < size_hist; i++ )
+// {
+// //prevent overflow
+// int val = cvRound( cvGetReal1D(hist->bins,i)*hist_image->
+// height/max_value);
+// CvScalar color = CV_RGB(200,0,0);
+// //hsv2rgb(i*180.f/size_hist);
+// cvRectangle( hist_image, cvPoint(i*bin_w,hist_image->height),
+// cvPoint((i+1)*bin_w,hist_image->height - val),
+// color, -1, 8, 0 );
+// }
+//
+//
+// cvNamedWindow("hist", 1); cvShowImage("hist",hist_image);
+
+
+ //calculate back projection of hue plane of input image
+ IplImage* backproject = cvCreateImage(cvGetSize(find_image), 8, 1);
+ IplImage* binary_backproject = cvCreateImage(cvGetSize(find_image), 8, 1);
+ IplImage* find_hsv = cvCreateImage(cvGetSize(find_image),8,3);
+ IplImage* find_hue = cvCreateImage(cvGetSize(find_image),8,1);
+
+ cvCvtColor(find_image, find_hsv, CV_BGR2HSV);
+ cvCvtPixToPlane(find_hsv, find_hue, 0, 0, 0);
+ cvCalcBackProject(&find_hue, backproject, hist);
+
+ // Threshold in order to obtain binary image
+ cvThreshold(backproject, binary_backproject, 1, 255, CV_THRESH_BINARY); // NOTE it would be good to think about the best threshold to use (it's 1 for now)
+ cvReleaseImage(&test_image);
+ cvReleaseImage(&test_hsv);
+ cvReleaseImage(&test_hue);
+ cvReleaseImage(&backproject);
+
+ return Mat(binary_backproject);
+}
