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-rw-r--r--externals/gridflow/optional/opencv.c568
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diff --git a/externals/gridflow/optional/opencv.c b/externals/gridflow/optional/opencv.c
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+++ b/externals/gridflow/optional/opencv.c
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+/*
+ $Id: opencv.c 4212 2009-10-15 20:37:37Z matju $
+
+ GridFlow
+ Copyright (c) 2001-2008 by Mathieu Bouchard
+
+ 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.
+
+ See file ../COPYING for further informations on licensing terms.
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include "../gridflow.h.fcs"
+#include <opencv/cv.h>
+#include <errno.h>
+
+#define cvRelease(euh) cvRelease((void **)(euh))
+#define binbuf_addv(SELF,FMT,ARGS...) binbuf_addv(SELF,const_cast<char *>(FMT),ARGS)
+#define USELIST \
+ if (a.a_type != A_LIST) RAISE("expected listatom"); \
+ t_list *b = (t_list *)a.a_gpointer; \
+ int argc = binbuf_getnatom(b); \
+ t_atom2 *argv = (t_atom2 *)binbuf_getvec(b);
+#define GETF(I) atom_getfloatarg(I,argc,argv)
+#define GETI(I) int(atom_getfloatarg(I,argc,argv))
+
+int ipl_eltype(NumberTypeE e) {
+ switch (e) {
+ case uint8_e: return IPL_DEPTH_8U;
+ // IPL_DEPTH_8S not supported
+ // IPL_DEPTH_16U not supported
+ case int16_e: return IPL_DEPTH_16S;
+ case int32_e: return IPL_DEPTH_32S;
+ case float32_e: return IPL_DEPTH_32F;
+ case float64_e: return IPL_DEPTH_64F;
+ default: RAISE("unsupported type %s",number_type_table[e].name);
+ }
+}
+
+NumberTypeE gf_ipltype(int e) {
+ switch (e) {
+ case IPL_DEPTH_8U: return uint8_e;
+ // IPL_DEPTH_8S not supported
+ // IPL_DEPTH_16U not supported
+ case IPL_DEPTH_16S: return int16_e;
+ case IPL_DEPTH_32S: return int32_e;
+ case IPL_DEPTH_32F: return float32_e;
+ case IPL_DEPTH_64F: return float64_e;
+ default: RAISE("unsupported IPL type %d",e);
+ }
+}
+
+int cv_eltype(NumberTypeE e) {
+ switch (e) {
+ case uint8_e: return CV_8U;
+ // CV_8S not supported
+ // CV_16U not supported
+ case int16_e: return CV_16S;
+ case int32_e: return CV_32S;
+ case float32_e: return CV_32F;
+ case float64_e: return CV_64F;
+ default: RAISE("unsupported type %s",number_type_table[e].name);
+ }
+}
+
+NumberTypeE gf_cveltype(int e) {
+ switch (e) {
+ case CV_8U: return uint8_e;
+ // CV_8S not supported
+ // CV_16U not supported
+ case CV_16S: return int16_e;
+ case CV_32S: return int32_e;
+ case CV_32F: return float32_e;
+ case CV_64F: return float64_e;
+ default: RAISE("unsupported CV type %d",e);
+ }
+}
+
+enum CvMode {
+ cv_mode_auto,
+ cv_mode_channels,
+ cv_mode_nochannels,
+};
+
+CvMode convert (const t_atom2 &x, CvMode *foo) {
+ if (x==gensym("auto")) return cv_mode_auto;
+ if (x==gensym("channels")) return cv_mode_channels;
+ if (x==gensym("nochannels")) return cv_mode_nochannels;
+ RAISE("invalid CvMode");
+}
+
+CvTermCriteria convert (const t_atom2 &a, CvTermCriteria *foo) {
+ USELIST;
+ CvTermCriteria tc;
+ tc.type = 0;
+ if (argc>0 && argv[0]!=gensym("nil")) {tc.type |= CV_TERMCRIT_ITER; tc.max_iter = GETI(0);}
+ if (argc>1 && argv[1]!=gensym("nil")) {tc.type |= CV_TERMCRIT_EPS ; tc.epsilon = GETF(1);}
+ if (argc>2) RAISE("invalid CvTermCriteria (too many args)");
+ //post("type=0x%08x max_iter=%d epsilon=%f",tc.type,tc.max_iter,tc.epsilon);
+ return tc;
+}
+
+void set_atom (t_atom *a, CvTermCriteria &tc) {
+ t_binbuf *b = binbuf_new();
+ if (tc.type & CV_TERMCRIT_ITER) binbuf_addv(b,"f",tc.max_iter); else binbuf_addv(b,"s",gensym("nil"));
+ if (tc.type & CV_TERMCRIT_EPS ) binbuf_addv(b,"f",tc.epsilon ); else binbuf_addv(b,"s",gensym("nil"));
+ SETLIST(a,b);
+}
+
+CvArr *cvGrid(PtrGrid g, CvMode mode, int reqdims=-1) {
+ P<Dim> d = g->dim;
+ int channels=1;
+ int dims=g->dim->n;
+ //post("mode=%d",(int)mode);
+ if (mode==cv_mode_channels && g->dim->n==0) RAISE("CV: channels dimension required for 'mode channels'");
+ if ((mode==cv_mode_auto && g->dim->n>=3) || mode==cv_mode_channels) channels=g->dim->v[--dims];
+ if (channels>64) RAISE("CV: too many channels. max 64, got %d",channels);
+ //post("channels=%d dims=%d nt=%d",channels,dims,g->nt);
+ //post("bits=%d",number_type_table[g->nt].size);
+ //if (dims==2) return cvMat(g->dim->v[0],g->dim->v[1],cv_eltype(g->nt),g->data);
+ if (reqdims>=0 && reqdims!=dims) RAISE("CV: wrong number of dimensions. expected %d, got %d", reqdims, dims);
+ if (dims==2) {
+ CvMat *a = cvCreateMatHeader(g->dim->v[0],g->dim->v[1],CV_MAKETYPE(cv_eltype(g->nt),channels));
+ cvSetData(a,g->data,g->dim->prod(1)*(number_type_table[g->nt].size/8));
+ return a;
+ }
+ if (dims==1) {
+ CvMat *a = cvCreateMatHeader(g->dim->v[0], 1,CV_MAKETYPE(cv_eltype(g->nt),channels));
+ cvSetData(a,g->data,g->dim->prod(1)*(number_type_table[g->nt].size/8));
+ return a;
+ }
+ RAISE("unsupported number of dimensions (got %d)",g->dim->n);
+ //return 0;
+}
+
+IplImage *cvImageGrid(PtrGrid g /*, CvMode mode */) {
+ P<Dim> d = g->dim;
+ if (d->n!=3) RAISE("expected 3 dimensions, got %s",d->to_s());
+ int channels=g->dim->v[2];
+ if (channels>64) RAISE("too many channels. max 64, got %d",channels);
+ CvSize size = {d->v[1],d->v[0]};
+ IplImage *a = cvCreateImageHeader(size,ipl_eltype(g->nt),channels);
+ cvSetData(a,g->data,g->dim->prod(1)*(number_type_table[g->nt].size/8));
+ return a;
+}
+
+void cvMatSend(const CvMat *self, FObject *obj, int outno, Dim *dim=0) {
+ int m = self->rows;
+ int n = self->cols;
+ int e = CV_MAT_TYPE(cvGetElemType(self));
+ int c = CV_MAT_CN( cvGetElemType(self));
+ GridOutlet *out = new GridOutlet(obj,0,dim?dim:new Dim(m,n));
+ for (int i=0; i<m; i++) {
+ uchar *meuh = cvPtr2D(self,i,0,0);
+ switch (e) {
+ case CV_8U: out->send(c*n, (uint8 *)meuh); break;
+ case CV_16S: out->send(c*n, (int16 *)meuh); break;
+ case CV_32S: out->send(c*n, (int32 *)meuh); break;
+ case CV_32F: out->send(c*n,(float32 *)meuh); break;
+ case CV_64F: out->send(c*n,(float64 *)meuh); break;
+ }
+ }
+}
+
+void set_atom (t_atom *a, CvPoint &v) {
+ t_binbuf *b = binbuf_new();
+ binbuf_addv(b,"ii",v.y,v.x);
+ SETLIST(a,b);
+}
+void set_atom (t_atom *a, CvSize &v) {
+ t_binbuf *b = binbuf_new();
+ binbuf_addv(b,"ii",v.height,v.width);
+ SETLIST(a,b);
+}
+void set_atom (t_atom *a, CvScalar &scal) {
+ t_binbuf *b = binbuf_new();
+ binbuf_addv(b,"ffff",scal.val[0],scal.val[1],scal.val[2],scal.val[3]);
+ SETLIST(a,b);
+}
+CvPoint convert (const t_atom &a, CvPoint *) {USELIST; return cvPoint( GETI(0),GETI(1));}
+CvSize convert (const t_atom &a, CvSize *) {USELIST; return cvSize( GETI(0),GETI(1));}
+CvScalar convert (const t_atom &a, CvScalar *) {USELIST; return cvScalar(GETF(0),GETF(1),GETF(2),GETF(3));}
+
+/* ******************************** CLASSES ******************************** */
+
+\class CvOp1 : FObject {
+ \attr CvMode mode;
+ \constructor (...) {mode = cv_mode_auto;}
+ /* has no default \grin 0 handler so far. */
+};
+\end class {}
+
+\class CvOp2 : CvOp1 {
+ PtrGrid r;
+ \constructor (Grid *r=0) {this->r = r?r:new Grid(new Dim(),int32_e,true);}
+ virtual void func(CvArr *l, CvArr *r, CvArr *o) {/* rien */}
+ \grin 0
+ \grin 1
+};
+GRID_INLET(0) {
+ SAME_TYPE(in,r);
+ if (!in->dim->equal(r->dim)) RAISE("dimension mismatch: left:%s right:%s",in->dim->to_s(),r->dim->to_s());
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ PtrGrid o = new Grid(in->dim,in->nt);
+ CvArr *a = cvGrid(l,mode);
+ CvArr *b = cvGrid(r,mode);
+ CvArr *c = cvGrid(o,mode);
+ func(a,b,c);
+ cvRelease(&a);
+ cvRelease(&b);
+ cvRelease(&c);
+ out = new GridOutlet(this,0,in->dim,in->nt);
+ out->send(o->dim->prod(),(T *)o->data);
+} GRID_END
+GRID_INPUT2(1,r) {} GRID_END
+\end class {}
+
+#define FUNC(CLASS) CLASS(BFObject *bself, MESSAGE):CvOp2(bself,MESSAGE2) {} virtual void func(CvArr *l, CvArr *r, CvArr *o)
+
+\class CvAdd : CvOp2 {FUNC(CvAdd) {cvAdd(l,r,o,0);}};
+\end class {install("cv/#Add",2,1);}
+\class CvSub : CvOp2 {FUNC(CvSub) {cvSub(l,r,o,0);}};
+\end class {install("cv/#Sub",2,1);}
+\class CvMul : CvOp2 {FUNC(CvMul) {cvMul(l,r,o,1);}};
+\end class {install("cv/#Mul",2,1);}
+\class CvDiv : CvOp2 {FUNC(CvDiv) {cvDiv(l,r,o,1);}};
+\end class {install("cv/#Div",2,1);}
+\class CvAnd : CvOp2 {FUNC(CvAnd) {cvAnd(l,r,o,0);}};
+\end class {install("cv/#And",2,1);}
+\class CvOr : CvOp2 {FUNC(CvOr ) {cvOr( l,r,o,0);}};
+\end class {install("cv/#Or" ,2,1);}
+\class CvXor : CvOp2 {FUNC(CvXor) {cvXor(l,r,o,0);}};
+\end class {install("cv/#Xor",2,1);}
+
+\class CvInvert : CvOp1 {
+ \constructor () {}
+ \grin 0
+};
+GRID_INLET(0) {
+ if (in->dim->n!=2) RAISE("should have 2 dimensions");
+ if (in->dim->v[0] != in->dim->v[1]) RAISE("matrix should be square");
+ in->set_chunk(0);
+} GRID_FLOW {
+ //post("l=%p, r=%p", &*l, &*r);
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ PtrGrid o = new Grid(in->dim,in->nt);
+ CvArr *a = cvGrid(l,mode);
+ CvArr *c = cvGrid(o,mode);
+ //post("a=%p, b=%p", a, b);
+ cvInvert(a,c);
+ cvRelease(&a);
+ cvRelease(&c);
+ out = new GridOutlet(this,0,in->dim,in->nt);
+ out->send(o->dim->prod(),(T *)o->data);
+} GRID_END
+\end class {install("cv/#Invert",1,1);}
+
+\class CvSVD : CvOp1 {
+ \grin 0
+ \constructor () {}
+};
+GRID_INLET(0) {
+ if (in->dim->n!=2) RAISE("should have 2 dimensions");
+ if (in->dim->v[0] != in->dim->v[1]) RAISE("matrix should be square");
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ PtrGrid o0 = new Grid(in->dim,in->nt);
+ PtrGrid o1 = new Grid(in->dim,in->nt);
+ PtrGrid o2 = new Grid(in->dim,in->nt);
+ CvArr *a = cvGrid(l,mode);
+ CvArr *c0 = cvGrid(o0,mode);
+ CvArr *c1 = cvGrid(o1,mode);
+ CvArr *c2 = cvGrid(o2,mode);
+ cvSVD(a,c0,c1,c2);
+ cvRelease(&a);
+ cvRelease(&c0);
+ cvRelease(&c1);
+ cvRelease(&c2);
+ out = new GridOutlet(this,2,in->dim,in->nt); out->send(o2->dim->prod(),(T *)o2->data);
+ out = new GridOutlet(this,1,in->dim,in->nt); out->send(o1->dim->prod(),(T *)o1->data);
+ out = new GridOutlet(this,0,in->dim,in->nt); out->send(o0->dim->prod(),(T *)o0->data);
+} GRID_END
+\end class {install("cv/#SVD",1,3);}
+
+\class CvEllipse : FObject {
+ \grin 0
+ \attr CvPoint center;
+ \attr CvSize axes;
+ \attr double angle;
+ \attr double start_angle;
+ \attr double end_angle;
+ \attr CvScalar color;
+ \attr int thickness;
+ \attr int line_type;
+ \attr int shift;
+ \constructor () {
+ center=cvPoint(0,0); axes=cvSize(0,0); angle=0; start_angle=0; end_angle=360; color=cvScalar(0);
+ thickness=1; line_type=8; shift=0;
+ }
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,in->nt); COPY((T *)*l,data,in->dim->prod());
+ IplImage *img = cvImageGrid(l);
+ cvEllipse(img,center,axes,angle,start_angle,end_angle,color,thickness,line_type,shift);
+ cvReleaseImageHeader(&img);
+ out = new GridOutlet(this,0,in->dim,in->nt); out->send(in->dim->prod(),(T *)*l);
+} GRID_END
+\end class {install("cv/#Ellipse",1,2);}
+
+\class CvApproxPoly : CvOp1 {
+ \grin 0
+ \attr int accuracy;
+ \attr bool closed;
+ CvMemStorage* storage;
+ \constructor () {closed=true; storage = cvCreateMemStorage(0);}
+ ~CvApproxPoly () {cvReleaseMemStorage(&storage);}
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data); CvArr *a = cvGrid(l,mode);
+ CvSeq *seq = cvApproxPoly(a,sizeof(CvMat),storage,CV_POLY_APPROX_DP,accuracy,closed);
+ seq=seq; //blah
+} GRID_END
+\end class {install("cv/#ApproxPoly",1,1);}
+
+\class CvCalcOpticalFlowHS : CvOp1 {
+ \grin 0
+ \attr double lambda;
+ //\attr CvTermCriteria criteria;
+ \constructor () {}
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+// cvCalcOpticalFlowHS(prev,curr,use_previous, CvArr* velx, CvArr* vely, lambda, CvTermCriteria criteria );
+} GRID_END
+\end class {install("cv/#CalcOpticalFlowHS",1,1);}
+\class CvCalcOpticalFlowLK : CvOp1 {
+ \grin 0
+ \constructor () {}
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+} GRID_END
+\end class {install("cv/#CalcOpticalFlowLK",1,1);}
+\class CvCalcOpticalFlowBM : CvOp1 {
+ \grin 0
+ \constructor () {}
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+} GRID_END
+\end class {install("cv/#CalcOpticalFlowBM",1,1);}
+\class CvCalcOpticalFlowPyrLK : CvOp1 {
+ \grin 0
+ \constructor () {}
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+} GRID_END
+\end class {install("cv/#CalcOpticalFlowPyrLK",1,1);}
+
+/*
+void cvCalcOpticalFlowLK(const CvArr* prev, const CvArr* curr, CvSize win_size, CvArr* velx, CvArr* vely);
+void cvCalcOpticalFlowBM(const CvArr* prev, const CvArr* curr, CvSize block_size, CvSize shift_size, CvSize max_range, int use_previous,
+ CvArr* velx, CvArr* vely);
+void cvCalcOpticalFlowPyrLK(const CvArr* prev, const CvArr* curr, CvArr* prev_pyr, CvArr* curr_pyr,
+ const CvPoint2D32f* prev_features, CvPoint2D32f* curr_features,
+ int count, CvSize win_size, int level, char* status,
+ float* track_error, CvTermCriteria criteria, int flags );
+void cvCalcBackProject( IplImage** image, CvArr* back_project, const CvHistogram* hist );
+void cvCalcHist( IplImage** image, CvHistogram* hist, int accumulate=0, const CvArr* mask=NULL );
+CvHistogram* cvCreateHist( int dims, int* sizes, int type, float** ranges=NULL, int uniform=1 );
+void cvSnakeImage( const IplImage* image, CvPoint* points, int length, float* alpha, float* beta, float* gamma, int coeff_usage,
+ CvSize win, CvTermCriteria criteria, int calc_gradient=1 );
+int cvMeanShift( const CvArr* prob_image, CvRect window, CvTermCriteria criteria, CvConnectedComp* comp );
+int cvCamShift( const CvArr* prob_image, CvRect window, CvTermCriteria criteria, CvConnectedComp* comp, CvBox2D* box=NULL );
+*/
+
+/* ******************************** UNFINISHED ******************************** */
+
+\class CvSplit : CvOp1 {
+ int channels;
+ \constructor (int channels) {
+ if (channels<0 || channels>64) RAISE("channels=%d is not in 1..64",channels);
+ this->channels = channels;
+ bself->noutlets_set(channels);
+ }
+};
+\end class {}
+
+\class CvHaarDetectObjects : FObject {
+ \attr double scale_factor; /*=1.1*/
+ \attr int min_neighbors; /*=3*/
+ \attr int flags; /*=0*/
+ \constructor () {
+ scale_factor=1.1;
+ min_neighbors=3;
+ flags=0;
+ //cascade = cvLoadHaarClassifierCascade("<default_face_cascade>",cvSize(24,24));
+ const char *filename = OPENCV_SHARE_PATH "/haarcascades/haarcascade_frontalface_alt2.xml";
+ FILE *f = fopen(filename,"r");
+ if (!f) RAISE("error opening %s: %s",filename,strerror(errno));
+ fclose(f);
+ cascade = (CvHaarClassifierCascade *)cvLoad(filename,0,0,0);
+ int s = cvGetErrStatus();
+ post("cascade=%p, cvGetErrStatus=%d cvErrorStr=%s",cascade,s,cvErrorStr(s));
+ //cascade = cvLoadHaarClassifierCascade(OPENCV_SHARE_PATH "/data/haarcascades/haarcascade_frontalface_alt2.xml",cvSize(24,24));
+ storage = cvCreateMemStorage(0);
+ }
+ CvHaarClassifierCascade *cascade;
+ CvMemStorage *storage;
+ \grin 0
+};
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ IplImage *img = cvImageGrid(l);
+ CvSeq *ret = cvHaarDetectObjects(img,cascade,storage,scale_factor,min_neighbors,flags);
+ int n = ret ? ret->total : 0;
+ out = new GridOutlet(this,0,new Dim(n,2,2));
+ for (int i=0; i<n; i++) {
+ CvRect *r = (CvRect *)cvGetSeqElem(ret,i);
+ int32 duh[] = {r->y,r->x,r->y+r->height,r->x+r->width};
+ out->send(4,duh);
+ }
+} GRID_END
+\end class {install("cv/#HaarDetectObjects",2,1);}
+
+\class CvKalmanWrapper : CvOp1 {
+ CvKalman *kal;
+ \constructor (int dynam_params, int measure_params, int control_params=0) {
+ kal = cvCreateKalman(dynam_params,measure_params,control_params);
+ }
+ ~CvKalmanWrapper () {if (kal) cvReleaseKalman(&kal);}
+ \decl void _0_bang ();
+ \grin 0
+ \grin 1
+};
+\def void _0_bang () {
+ const CvMat *r = cvKalmanPredict(kal,0);
+ cvMatSend(r,this,0);
+}
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ CvMat *a = (CvMat *)cvGrid(l,mode,2);
+ const CvMat *r = cvKalmanPredict(kal,a);
+ cvMatSend(r,this,0);
+} GRID_END
+
+GRID_INLET(1) {
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ CvMat *a = (CvMat *)cvGrid(l,mode,2);
+ const CvMat* r = cvKalmanCorrect(kal,a);
+ cvMatSend(r,this,0);
+ cvRelease(&r);
+} GRID_END
+\end class {install("cv/#Kalman",2,1);}
+
+/* **************************************************************** */
+
+\class CvKMeans : CvOp1 {
+ \attr int numClusters;
+ \attr CvTermCriteria termcrit;
+ \grin 0 float32
+ \decl 1 float (int v);
+ \constructor (int v) {
+ _1_float(0,0,v);
+ termcrit = CvTermCriteria();
+ }
+};
+
+\def 1 float (int v) {numClusters = v;}
+
+//post("typeof(a)=%p typeof(c)=%p typeof(CvMat)=%p",cvTypeOf(a),cvTypeOf(c),cvFindType("opencv-matrix"));
+//for (CvTypeInfo *t = cvFirstType(); t; t=t->next) post("type %s",t->type_name);
+
+GRID_INLET(0) {
+ if (in->dim->n<1) RAISE("should have at least 1 dimension");
+ in->set_chunk(0);
+} GRID_FLOW {
+ int32 v[] = {in->dim->prod(0)/in->dim->prod(-1),in->dim->prod(-1)};
+ PtrGrid l = new Grid(new Dim(2,v),(T *)data);
+ CvArr *a = (CvMat *)cvGrid(l,mode,2);
+ PtrGrid o = new Grid(new Dim(1,v),int32_e);
+ CvArr *c = (CvMat *)cvGrid(o,mode);
+ cvKMeans2(a,numClusters,c,termcrit);
+ int w[in->dim->n];
+ COPY(w,in->dim->v,in->dim->n);
+ w[in->dim->n-1] = 1;
+ P<Dim> d = new Dim(in->dim->n,w);
+ out = new GridOutlet(this,0,d);
+ out->send(v[0],(int32 *)*o);
+ cvRelease(&a);
+ cvRelease(&c);
+} GRID_END
+
+\end class {install("cv/#KMeans",2,1);}
+
+
+
+\class CvCornerHarris < CvOp1 {
+ \attr int block_size;
+ \attr int aperture_size;
+ \attr double k;
+ \constructor () {
+ block_size = 3;
+ aperture_size = 3;
+ k = 0.04;
+ }
+ \grin 0
+};
+
+GRID_INLET(0) {
+ in->set_chunk(0);
+} GRID_FLOW {
+ PtrGrid l = new Grid(in->dim,(T *)data);
+ CvArr *a = (CvMat *)cvGrid(l,mode,2);
+ PtrGrid o = new Grid(in->dim,float32_e);
+ CvArr *c = (CvMat *)cvGrid(o,mode);
+ cvCornerHarris(a,c,block_size,aperture_size,k);
+ cvRelease(&a);
+ cvRelease(&c);
+ out = new GridOutlet(this,0,in->dim,in->nt); out->send(o->dim->prod(),(T *)o->data);
+} GRID_END
+
+\end class {install("cv/#CornerHarris",1,1);}
+
+/* **************************************************************** */
+
+static int erreur_handleur (int status, const char* func_name, const char* err_msg, const char* file_name, int line, void *userdata) {
+ cvSetErrStatus(CV_StsOk);
+ // we might be looking for trouble because we don't know whether OpenCV is throw-proof.
+ RAISE("OpenCV error: status='%s' func_name=%s err_msg=\"%s\" file_name=%s line=%d",cvErrorStr(status),func_name,err_msg,file_name,line);
+ // if this breaks OpenCV, then we will have to use post() or a custom hybrid of post() and RAISE() that does not cause a
+ // longjmp when any OpenCV functions are on the stack.
+ return 0;
+}
+
+void startup_opencv() {
+ /* CvErrorCallback z = */ cvRedirectError(erreur_handleur);
+ \startall
+}