aboutsummaryrefslogtreecommitdiff
path: root/pdp_opencv_lk.cc
diff options
context:
space:
mode:
Diffstat (limited to 'pdp_opencv_lk.cc')
-rwxr-xr-xpdp_opencv_lk.cc700
1 files changed, 700 insertions, 0 deletions
diff --git a/pdp_opencv_lk.cc b/pdp_opencv_lk.cc
new file mode 100755
index 0000000..432c4e7
--- /dev/null
+++ b/pdp_opencv_lk.cc
@@ -0,0 +1,700 @@
+/*
+ * Pure Data Packet module.
+ * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <ctype.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+#define MAX_MARKERS 500
+const int MAX_COUNT = 500;
+
+typedef struct pdp_opencv_lk_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_outlet *x_outlet0;
+ t_outlet *x_outlet1;
+ t_atom x_list[3];
+
+ int x_packet0;
+ int x_packet1;
+ int x_dropped;
+ int x_queue_id;
+
+ int x_width;
+ int x_height;
+ int x_size;
+
+ int win_size;
+ double quality;
+ int min_distance;
+ int x_maxmove;
+ int x_ftolerance;
+ int x_markall;
+ int x_delaunay;
+ int x_threshold;
+ int x_xmark[MAX_MARKERS];
+ int x_ymark[MAX_MARKERS];
+ int x_found[MAX_MARKERS];
+
+ // The output and temporary images
+ IplImage *image, *oimage, *grey, *prev_grey, *pyramid, *prev_pyramid, *swap_temp;
+
+ CvPoint2D32f* points[2], *swap_points;
+ char* status;
+ int count;
+ int need_to_init;
+ int night_mode;
+ int flags;
+ int add_remove_pt;
+ CvPoint pt;
+ CvFont font;
+
+ // structures needed for the delaunay
+ CvRect x_fullrect;
+ CvMemStorage* x_storage;
+ CvSubdiv2D* x_subdiv;
+
+} t_pdp_opencv_lk;
+
+static void pdp_opencv_lk_clear(t_pdp_opencv_lk *x);
+
+static void pdp_opencv_lk_process_rgb(t_pdp_opencv_lk *x)
+{
+ t_pdp *header = pdp_packet_header(x->x_packet0);
+ short int *data = (short int *)pdp_packet_data(x->x_packet0);
+ t_pdp *newheader = pdp_packet_header(x->x_packet1);
+ short int *newdata = (short int *)pdp_packet_data(x->x_packet1);
+ int i,j,k,im;
+ int marked;
+
+ if ((x->x_width != (t_int)header->info.image.width) ||
+ (x->x_height != (t_int)header->info.image.height) || (!x->image))
+ {
+
+ post("pdp_opencv_lk :: resizing plugins");
+
+ x->x_width = header->info.image.width;
+ x->x_height = header->info.image.height;
+ x->x_size = x->x_width*x->x_height;
+
+ //Destroy cv_images
+ cvReleaseImage( &x->image );
+ cvReleaseImage( &x->oimage );
+ cvReleaseImage( &x->grey );
+ cvReleaseImage( &x->prev_grey );
+ cvReleaseImage( &x->pyramid );
+ cvReleaseImage( &x->prev_pyramid );
+
+ //Create cv_images
+ x->image = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 3 );
+ x->oimage = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 3 );
+ x->grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->prev_grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->prev_pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->points[0] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+ x->points[1] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+ x->status = (char*)cvAlloc(MAX_COUNT);
+ }
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_width;
+ newheader->info.image.height = x->x_height;
+
+ memcpy( newdata, data, x->x_size*3 );
+
+ memcpy( x->image->imageData, data, x->x_size*3 );
+ memcpy( x->oimage->imageData, data, x->x_size*3 );
+
+ cvCvtColor( x->image, x->grey, CV_RGB2GRAY );
+
+ if( x->night_mode )
+ cvZero( x->image );
+
+ for ( im=0; im<MAX_MARKERS; im++ )
+ {
+ x->x_found[im]--;
+ }
+
+ if ( x->x_delaunay >= 0 )
+ {
+ // init data structures for the delaunay
+ x->x_fullrect.x = -x->x_width/2;
+ x->x_fullrect.y = -x->x_height/2;
+ x->x_fullrect.width = 2*x->x_width;
+ x->x_fullrect.height = 2*x->x_height;
+
+ x->x_storage = cvCreateMemStorage(0);
+ x->x_subdiv = cvCreateSubdiv2D( CV_SEQ_KIND_SUBDIV2D, sizeof(*x->x_subdiv),
+ sizeof(CvSubdiv2DPoint),
+ sizeof(CvQuadEdge2D),
+ x->x_storage );
+ cvInitSubdivDelaunay2D( x->x_subdiv, x->x_fullrect );
+ }
+
+ if( x->need_to_init )
+ {
+ /* automatic initialization */
+ IplImage* eig = cvCreateImage( cvSize(x->grey->width,x->grey->height), 32, 1 );
+ IplImage* temp = cvCreateImage( cvSize(x->grey->width,x->grey->height), 32, 1 );
+
+ x->count = MAX_COUNT;
+ cvGoodFeaturesToTrack( x->grey, eig, temp, x->points[1], &x->count,
+ x->quality, x->min_distance, 0, 3, 0, 0.04 );
+ cvFindCornerSubPix( x->grey, x->points[1], x->count,
+ cvSize(x->win_size,x->win_size), cvSize(-1,-1),
+ cvTermCriteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,20,0.03));
+ cvReleaseImage( &eig );
+ cvReleaseImage( &temp );
+
+ x->add_remove_pt = 0;
+ }
+ else if( x->count > 0 )
+ {
+ cvCalcOpticalFlowPyrLK( x->prev_grey, x->grey, x->prev_pyramid, x->pyramid,
+ x->points[0], x->points[1], x->count, cvSize(x->win_size,x->win_size), 3, x->status, 0,
+ cvTermCriteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,20,0.03), x->flags );
+ x->flags |= CV_LKFLOW_PYR_A_READY;
+ for( i = k = 0; i < x->count; i++ )
+ {
+ if( x->add_remove_pt )
+ {
+ double dx = x->pt.x - x->points[1][i].x;
+ double dy = x->pt.y - x->points[1][i].y;
+
+ if( dx*dx + dy*dy <= 25 )
+ {
+ x->add_remove_pt = 0;
+ continue;
+ }
+ }
+
+ if( !x->status[i] )
+ continue;
+
+ x->points[1][k++] = x->points[1][i];
+
+ if ( x->x_delaunay == 0 ) // add all the points
+ {
+ cvSubdivDelaunay2DInsert( x->x_subdiv, x->points[1][i] );
+ cvCalcSubdivVoronoi2D( x->x_subdiv );
+ }
+ // only add points included in (color-threshold)<p<(color+treshold)
+ if ( ( x->x_delaunay > 0 ) && ( x->x_xmark[x->x_delaunay-1] != -1 ) )
+ {
+ int px = cvPointFrom32f(x->points[1][i]).x;
+ int py = cvPointFrom32f(x->points[1][i]).y;
+ int ppx, ppy;
+
+ // eight connected pixels
+ for ( ppx=px-1; ppx<=px+1; ppx++ )
+ {
+ for ( ppy=py-1; ppy<=py+1; ppy++ )
+ {
+ if ( ( ppx < 0 ) || ( ppx >= x->x_width ) ) continue;
+ if ( ( ppy < 0 ) || ( ppy >= x->x_height ) ) continue;
+
+ uchar red = ((uchar*)(x->oimage->imageData + x->oimage->widthStep*ppx))[ppy*3];
+ uchar green = ((uchar*)(x->oimage->imageData + x->oimage->widthStep*ppx))[ppy*3+1];
+ uchar blue = ((uchar*)(x->oimage->imageData + x->oimage->widthStep*ppx))[ppy*3+2];
+
+ uchar pred = ((uchar*)(x->oimage->imageData + x->oimage->widthStep*x->x_xmark[x->x_delaunay-1]))[x->x_ymark[x->x_delaunay-1]*3];
+ uchar pgreen = ((uchar*)(x->oimage->imageData + x->oimage->widthStep*x->x_xmark[x->x_delaunay-1]))[x->x_ymark[x->x_delaunay-1]*3+1];
+ uchar pblue = ((uchar*)(x->oimage->imageData + x->oimage->widthStep*x->x_xmark[x->x_delaunay-1]))[x->x_ymark[x->x_delaunay-1]*3+2];
+
+ int diff = abs(red-pred) + abs(green-pgreen) + abs(blue-pblue);
+
+ // post( "pdp_opencv_lk : point (%d,%d,%d) : diff : %d", blue, green, red, diff );
+
+ if ( diff < x->x_threshold )
+ {
+ cvSubdivDelaunay2DInsert( x->x_subdiv, x->points[1][i] );
+ cvCalcSubdivVoronoi2D( x->x_subdiv );
+ }
+ }
+ }
+ }
+
+ cvCircle( x->image, cvPointFrom32f(x->points[1][i]), 3, CV_RGB(0,255,0), -1, 8,0);
+
+ marked=0;
+ for ( im=0; im<MAX_MARKERS; im++ )
+ {
+ // search for this point
+ if ( x->x_xmark[im] != -1.0 )
+ {
+ if ( ( abs( x->points[1][i].x - x->x_xmark[im] ) <= x->x_maxmove ) && ( abs( x->points[1][i].y - x->x_ymark[im] ) <= x->x_maxmove ) )
+ {
+ char tindex[4];
+ sprintf( tindex, "%d", im+1 );
+ cvPutText( x->image, tindex, cvPointFrom32f(x->points[1][i]), &x->font, CV_RGB(255,255,255));
+ x->x_xmark[im]=x->points[1][i].x;
+ x->x_ymark[im]=x->points[1][i].y;
+ x->x_found[im]=x->x_ftolerance;
+ marked=1;
+ SETFLOAT(&x->x_list[0], im+1);
+ SETFLOAT(&x->x_list[1], x->x_xmark[im]);
+ SETFLOAT(&x->x_list[2], x->x_ymark[im]);
+ outlet_list( x->x_outlet1, 0, 3, x->x_list );
+ }
+ }
+ }
+
+ if ( x->x_markall && !marked )
+ {
+ for ( im=0; im<MAX_MARKERS; im++)
+ {
+ if ( x->x_xmark[im] == -1 )
+ {
+ x->x_xmark[im]=x->points[1][i].x;
+ x->x_ymark[im]=x->points[1][i].y;
+ x->x_found[im]=x->x_ftolerance;
+ break;
+ }
+ }
+ }
+ }
+ x->count = k;
+ }
+
+ if( x->add_remove_pt && x->count < MAX_COUNT )
+ {
+ x->points[1][x->count++] = cvPointTo32f(x->pt);
+ cvFindCornerSubPix( x->grey, x->points[1] + x->count - 1, 1,
+ cvSize(x->win_size,x->win_size), cvSize(-1,-1),
+ cvTermCriteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,20,0.03));
+ x->add_remove_pt = 0;
+ }
+
+ // draw the delaunay
+ if ( x->x_delaunay >= 0 )
+ {
+ CvSeqReader reader;
+ int i, total = x->x_subdiv->edges->total;
+ int elem_size = x->x_subdiv->edges->elem_size;
+
+ cvStartReadSeq( (CvSeq*)(x->x_subdiv->edges), &reader, 0 );
+
+ for( i = 0; i < total; i++ )
+ {
+ CvQuadEdge2D* edge = (CvQuadEdge2D*)(reader.ptr);
+ CvSubdiv2DPoint* org_pt;
+ CvSubdiv2DPoint* dst_pt;
+ CvPoint2D32f org;
+ CvPoint2D32f dst;
+ CvPoint iorg, idst;
+
+ if( CV_IS_SET_ELEM( edge ))
+ {
+ org_pt = cvSubdiv2DEdgeOrg((CvSubdiv2DEdge)edge);
+ dst_pt = cvSubdiv2DEdgeDst((CvSubdiv2DEdge)edge);
+
+ if( org_pt && dst_pt )
+ {
+ org = org_pt->pt;
+ dst = dst_pt->pt;
+
+ iorg = cvPoint( cvRound( org.x ), cvRound( org.y ));
+ idst = cvPoint( cvRound( dst.x ), cvRound( dst.y ));
+
+ if ( ( org.x > 0 ) && ( org.x < x->x_width ) &&
+ ( dst.x > 0 ) && ( dst.x < x->x_width ) &&
+ ( org.y > 0 ) && ( org.y < x->x_height ) &&
+ ( dst.y > 0 ) && ( dst.y < x->x_height ) )
+ cvLine( x->image, iorg, idst, CV_RGB(255,0,0), 1, CV_AA, 0 );
+ }
+ }
+
+ // draw the voronoi : useless in my opinion as points belongs to contours
+ /*
+ if( CV_IS_SET_ELEM( edge+1 ))
+ {
+ org_pt = cvSubdiv2DEdgeOrg((CvSubdiv2DEdge)edge+1);
+ dst_pt = cvSubdiv2DEdgeDst((CvSubdiv2DEdge)edge+1);
+
+ if( org_pt && dst_pt )
+ {
+ org = org_pt->pt;
+ dst = dst_pt->pt;
+
+ iorg = cvPoint( cvRound( org.x ), cvRound( org.y ));
+ idst = cvPoint( cvRound( dst.x ), cvRound( dst.y ));
+
+ cvLine( x->image, iorg, idst, CV_RGB(0,0,255), 1, CV_AA, 0 );
+ }
+ }
+ */
+
+ CV_NEXT_SEQ_ELEM( elem_size, reader );
+ }
+ }
+
+ for ( im=0; im<MAX_MARKERS; im++ )
+ {
+ if ( (x->x_xmark[im] != -1.0 ) && !x->x_found[im] )
+ {
+ // lost the point
+ x->x_xmark[im]=-1.0;
+ x->x_ymark[im]=-1.0;
+ SETFLOAT(&x->x_list[0], im+1);
+ SETFLOAT(&x->x_list[1], x->x_xmark[im]);
+ SETFLOAT(&x->x_list[2], x->x_ymark[im]);
+ // send a lost point message to the patch
+ outlet_list( x->x_outlet1, 0, 3, x->x_list );
+ // post( "pdp_opencv_lk : lost point %d", im+1 );
+ }
+ }
+
+ if ( x->x_delaunay >= 0 )
+ {
+ cvReleaseMemStorage( &x->x_storage );
+ }
+
+ CV_SWAP( x->prev_grey, x->grey, x->swap_temp );
+ CV_SWAP( x->prev_pyramid, x->pyramid, x->swap_temp );
+ CV_SWAP( x->points[0], x->points[1], x->swap_points );
+ x->need_to_init = 0;
+
+ memcpy( newdata, x->image->imageData, x->x_size*3 );
+ return;
+}
+
+
+static void pdp_opencv_lk_winsize(t_pdp_opencv_lk *x, t_floatarg f)
+{
+ if (f>1.0) x->win_size = (int)f;
+}
+
+static void pdp_opencv_lk_nightmode(t_pdp_opencv_lk *x, t_floatarg f)
+{
+ if ((f==0.0)||(f==1.0)) x->night_mode = (int)f;
+}
+
+static void pdp_opencv_lk_quality(t_pdp_opencv_lk *x, t_floatarg f)
+{
+ if (f>0.0) x->quality = f;
+}
+
+static void pdp_opencv_lk_mindistance(t_pdp_opencv_lk *x, t_floatarg f)
+{
+ if (f>1.0) x->min_distance = (int)f;
+}
+
+static void pdp_opencv_lk_maxmove(t_pdp_opencv_lk *x, t_floatarg f)
+{
+ // has to be more than the size of a point
+ if (f>=3.0) x->x_maxmove = (int)f;
+}
+
+static void pdp_opencv_lk_ftolerance(t_pdp_opencv_lk *x, t_floatarg f)
+{
+ if (f>0.0) x->x_ftolerance = (int)f;
+}
+
+static void pdp_opencv_lk_delaunay(t_pdp_opencv_lk *x, t_symbol *s)
+{
+ if (s == gensym("on"))
+ x->x_delaunay = 0;
+ if (s == gensym("off"))
+ x->x_delaunay = -1;
+}
+
+static void pdp_opencv_lk_pdelaunay(t_pdp_opencv_lk *x, t_floatarg point, t_floatarg threshold)
+{
+ if (((int)point>0) && ((int)point<MAX_MARKERS))
+ {
+ x->x_delaunay = (int)point;
+ x->x_threshold = (int)threshold;
+ }
+}
+
+static void pdp_opencv_lk_init(t_pdp_opencv_lk *x)
+{
+ x->need_to_init = 1;
+}
+
+static void pdp_opencv_lk_mark(t_pdp_opencv_lk *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int i;
+ int inserted;
+ int px,py;
+
+ if ( argc == 1 ) // mark all
+ {
+ if ( argv[0].a_type != A_SYMBOL )
+ {
+ error( "pdp_opencv_lk : wrong argument (should be 'all')" );
+ return;
+ }
+ if ( !strcmp( argv[0].a_w.w_symbol->s_name, "all" ) )
+ {
+ x->x_markall = 1;
+ return;
+ }
+ if ( !strcmp( argv[0].a_w.w_symbol->s_name, "none" ) )
+ {
+ x->x_markall = 0;
+ pdp_opencv_lk_clear(x);
+ return;
+ }
+ }
+ else
+ {
+ if ( ( argv[0].a_type != A_FLOAT ) || ( argv[1].a_type != A_FLOAT ) )
+ {
+ error( "pdp_opencv_lk : wrong argument (should be mark px py)" );
+ return;
+ }
+ else
+ {
+ float fperx = argv[0].a_w.w_float;
+ float fpery = argv[1].a_w.w_float;
+
+ if ( ( fperx < 0.0 ) || ( fperx > 1.0 ) || ( fpery < 0.0 ) || ( fpery > 1.0 ) )
+ {
+ return;
+ }
+
+ px = (int)(fperx*x->x_width);
+ py = (int)(fpery*x->x_height);
+ inserted = 0;
+ for ( i=0; i<MAX_MARKERS; i++)
+ {
+ if ( x->x_xmark[i] == -1 )
+ {
+ x->x_xmark[i] = px;
+ x->x_ymark[i] = py;
+ x->x_found[i] = x->x_ftolerance;
+ inserted = 1;
+ break;
+ }
+ }
+ if ( !inserted )
+ {
+ post( "pdp_opencv_lk : max markers reached" );
+ }
+ }
+ }
+}
+
+static void pdp_opencv_lk_delete(t_pdp_opencv_lk *x, t_floatarg findex )
+{
+ int i;
+
+ if ( ( findex < 1.0 ) || ( findex > MAX_MARKERS ) )
+ {
+ return;
+ }
+
+ x->x_xmark[(int)findex-1] = -1;
+ x->x_ymark[(int)findex-1] = -1;
+}
+
+static void pdp_opencv_lk_clear(t_pdp_opencv_lk *x )
+{
+ int i;
+
+ for ( i=0; i<MAX_MARKERS; i++)
+ {
+ x->x_xmark[i] = -1;
+ x->x_ymark[i] = -1;
+ }
+}
+
+static void pdp_opencv_lk_sendpacket(t_pdp_opencv_lk *x)
+{
+ /* release the packet */
+ pdp_packet_mark_unused(x->x_packet0);
+ x->x_packet0 = -1;
+
+ /* unregister and propagate if valid dest packet */
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_lk_process(t_pdp_opencv_lk *x)
+{
+ int encoding;
+ t_pdp *header = 0;
+ char *parname;
+ unsigned pi;
+ int partype;
+ float pardefault;
+ t_atom plist[2];
+ t_atom tlist[2];
+ t_atom vlist[2];
+
+ /* check if image data packets are compatible */
+ if ( (header = pdp_packet_header(x->x_packet0))
+ && (PDP_BITMAP == header->type)){
+
+ /* pdp_opencv_lk_process inputs and write into active inlet */
+ switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+ case PDP_BITMAP_RGB:
+ x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+ pdp_queue_add(x, (void*)pdp_opencv_lk_process_rgb, (void*)pdp_opencv_lk_sendpacket, &x->x_queue_id);
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_opencv_lk_process */
+ break;
+
+ }
+ }
+
+}
+
+static void pdp_opencv_lk_input_0(t_pdp_opencv_lk *x, t_symbol *s, t_floatarg f)
+{
+ /* if this is a register_ro message or register_rw message, register with packet factory */
+
+ if (s == gensym("register_rw"))
+ x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym((char*)"bitmap/rgb/*") );
+
+ if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+ {
+ /* add the process method and callback to the process queue */
+ pdp_opencv_lk_process(x);
+ }
+}
+
+static void pdp_opencv_lk_free(t_pdp_opencv_lk *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+ //cv_freeplugins(x);
+
+ //Destroy cv_images
+ cvReleaseImage( &x->image );
+ cvReleaseImage( &x->oimage );
+ cvReleaseImage( &x->grey );
+ cvReleaseImage( &x->prev_grey );
+ cvReleaseImage( &x->pyramid );
+ cvReleaseImage( &x->prev_pyramid );
+}
+
+t_class *pdp_opencv_lk_class;
+
+
+void *pdp_opencv_lk_new(t_floatarg f)
+{
+ int i;
+
+ t_pdp_opencv_lk *x = (t_pdp_opencv_lk *)pd_new(pdp_opencv_lk_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("win_size"));
+
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+ x->x_outlet1 = outlet_new(&x->x_obj, &s_anything);
+
+ x->x_packet0 = -1;
+ x->x_packet1 = -1;
+ x->x_queue_id = -1;
+
+ x->x_width = 320;
+ x->x_height = 240;
+ x->x_size = x->x_width * x->x_height;
+
+ x->win_size = 10;
+
+ x->points [0] = 0;
+ x->points [1] = 0;
+ x->status = 0;
+ x->count = 0;
+ x->need_to_init = 1;
+ x->night_mode = 0;
+ x->flags = 0;
+ x->add_remove_pt = 0;
+ x->quality = 0.1;
+ x->min_distance = 10;
+ x->x_maxmove = 8;
+ x->x_ftolerance = 8;
+ x->x_delaunay = -1;
+ x->x_threshold = -1;
+
+ x->x_markall = 0;
+ for ( i=0; i<MAX_MARKERS; i++ )
+ {
+ x->x_xmark[i] = -1;
+ x->x_ymark[i] = -1;
+ }
+
+ // initialize font
+ cvInitFont( &x->font, CV_FONT_HERSHEY_PLAIN, 1.0, 1.0, 0, 1, 8 );
+
+ x->image = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 3 );
+ x->oimage = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 3 );
+ x->grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->prev_grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->prev_pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+ x->points[0] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+ x->points[1] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+ x->status = (char*)cvAlloc(MAX_COUNT);
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_lk_setup(void)
+{
+
+ post( " pdp_opencv_lk");
+ pdp_opencv_lk_class = class_new(gensym("pdp_opencv_lk"), (t_newmethod)pdp_opencv_lk_new,
+ (t_method)pdp_opencv_lk_free, sizeof(t_pdp_opencv_lk), 0, A_DEFFLOAT, A_NULL);
+
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_winsize, gensym("win_size"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_nightmode, gensym("nightmode"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_quality, gensym("quality"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_init, gensym("init"), A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_mark, gensym("mark"), A_GIMME, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_delete, gensym("delete"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_clear, gensym("clear"), A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_mindistance, gensym("mindistance"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_maxmove, gensym("maxmove"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_ftolerance, gensym("ftolerance"), A_FLOAT, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_delaunay, gensym("delaunay"), A_SYMBOL, A_NULL );
+ class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_pdelaunay, gensym("pdelaunay"), A_FLOAT, A_FLOAT, A_NULL );
+
+}
+
+#ifdef __cplusplus
+}
+#endif