C++ cvPoint2D32f函数代码示例

void AffineTransformPatch(IplImage* src, IplImage* dst, CvAffinePose pose)
{
	CvRect src_large_roi = cvGetImageROI(src);

	IplImage* temp = cvCreateImage(cvSize(src_large_roi.width, src_large_roi.height), IPL_DEPTH_32F, src->nChannels);
	cvSetZero(temp);
	IplImage* temp2 = cvCloneImage(temp);
	CvMat* rotation_phi = cvCreateMat(2, 3, CV_32FC1);

	CvSize new_size = cvSize(temp->width*pose.lambda1, temp->height*pose.lambda2);
	IplImage* temp3 = cvCreateImage(new_size, IPL_DEPTH_32F, src->nChannels);

	cvConvertScale(src, temp);
	cvResetImageROI(temp);


	cv2DRotationMatrix(cvPoint2D32f(temp->width/2, temp->height/2), pose.phi, 1.0, rotation_phi);
	cvWarpAffine(temp, temp2, rotation_phi);

	cvSetZero(temp);

	cvResize(temp2, temp3);

	cv2DRotationMatrix(cvPoint2D32f(temp3->width/2, temp3->height/2), pose.theta - pose.phi, 1.0, rotation_phi);
	cvWarpAffine(temp3, temp, rotation_phi);

	cvSetImageROI(temp, cvRect(temp->width/2 - src_large_roi.width/4, temp->height/2 - src_large_roi.height/4,
		src_large_roi.width/2, src_large_roi.height/2));
	cvConvertScale(temp, dst);
	cvReleaseMat(&rotation_phi);

	cvReleaseImage(&temp3);
	cvReleaseImage(&temp2);
	cvReleaseImage(&temp);
}

void the_project::project_init()
{
	car_of_pro = new the_car();


	//camera  480*640

	for_cam = cvCreateCameraCapture(1);
	for_video = cvCreateFileCapture("test.avi");
	image_size = cvSize(cvGetCaptureProperty(for_cam,3),cvGetCaptureProperty(for_cam,4));
	wr1 = cvCreateVideoWriter("record_ori.avi",CV_FOURCC('X','V','I','D') ,15,image_size);
	wr2 = cvCreateVideoWriter("record_cha.avi",CV_FOURCC('X','V','I','D') ,15,image_size);

	newpoints[0]=cvPoint2D32f(0,0);
	newpoints[1]=cvPoint2D32f(0,image_size.height);
	newpoints[2]=cvPoint2D32f(image_size.width,image_size.height);
	newpoints[3]=cvPoint2D32f(image_size.width,0);

	red_min=200;
	rg_max=100;
	rb_max=100;
	green_min=200;
	gb_max=100;
	gr_max=100;

}

void GenerateAffineTransformFromPose(CvSize size, CvAffinePose pose, CvMat* transform)
{
	CvMat* temp = cvCreateMat(3, 3, CV_32FC1);
	CvMat* final = cvCreateMat(3, 3, CV_32FC1);
	cvmSet(temp, 2, 0, 0.0f);
	cvmSet(temp, 2, 1, 0.0f);
	cvmSet(temp, 2, 2, 1.0f);

	CvMat rotation;
	cvGetSubRect(temp, &rotation, cvRect(0, 0, 3, 2));

	cv2DRotationMatrix(cvPoint2D32f(size.width/2, size.height/2), pose.phi, 1.0, &rotation);
	cvCopy(temp, final);

	cvmSet(temp, 0, 0, pose.lambda1);
	cvmSet(temp, 0, 1, 0.0f);
	cvmSet(temp, 1, 0, 0.0f);
	cvmSet(temp, 1, 1, pose.lambda2);
	cvmSet(temp, 0, 2, size.width/2*(1 - pose.lambda1));
	cvmSet(temp, 1, 2, size.height/2*(1 - pose.lambda2));
	cvMatMul(temp, final, final);

	cv2DRotationMatrix(cvPoint2D32f(size.width/2, size.height/2), pose.theta - pose.phi, 1.0, &rotation);
	cvMatMul(temp, final, final);

	cvGetSubRect(final, &rotation, cvRect(0, 0, 3, 2));
	cvCopy(&rotation, transform);

	cvReleaseMat(&temp);
	cvReleaseMat(&final);
}

int ofxSurfObjCorners(IpPairVec & matches,const ofPoint src_crn[4],ofPoint dst_crn[4]) {
    double h[9];
    CvMat _h = cvMat(3,3,CV_64F,h);
    vector<CvPoint2D32f> pt1,pt2;
    CvMat _pt1,_pt2;

    int n = (int)(matches.size());
    if(n<4)return 0;

    pt1.resize(n);
    pt2.resize(n);

    for(int i=0; i<n; i++) {
        pt1[i] = cvPoint2D32f(matches[i].second.x,matches[i].second.y);
        pt2[i] = cvPoint2D32f(matches[i].first.x,matches[i].first.y);
    }
    _pt1 = cvMat(1,n,CV_32F,&pt1[0]);
    _pt2 = cvMat(1,n,CV_32F,&pt2[0]);



    //if(!cvFindHomography(&_pt1,&_pt2,&_h,CV_RANSAC,5))return 0;
    /*for(int i=0;i<4;i++){
        double x = (double)src_crn[i].x;
        double y = (double)src_crn[i].y;
        double Z = 1./(h[6]*x + h[7]*y + h[8]);
        double X = (h[0]*x + h[1]*y + h[2])*Z;
        double Y = (h[3]*x + h[4]*y + h[5])*Z;
        dst_crn[i].set(cvRound(X),cvRound(Y));
    }*/

    return 1;
}

void SimpleImageProjector::project(IplImage* dst, A4PreciseDetectedRecord dstRecord)
{
	CvPoint2D32f dstCorners[4];
	dstCorners[0] = cvPoint2D32f(dstRecord.UL.x, dstRecord.UL.y);
	dstCorners[1] = cvPoint2D32f(dstRecord.UR.x, dstRecord.UR.y);
	dstCorners[2] = cvPoint2D32f(dstRecord.DL.x, dstRecord.DL.y);
	dstCorners[3] = cvPoint2D32f(dstRecord.DR.x, dstRecord.DR.y);
	cvWarpPerspective(projection, dst, transformMat, CV_INTER_LINEAR);
}

 void cameraInfoCb(const sensor_msgs::CameraInfoConstPtr& msg){
     cameraInfo.focalLength = cvPoint2D32f(msg->K.elems[0], msg->K.elems[4]);
     cameraInfo.imageHeight = msg->height;
     cameraInfo.imageWidth = msg->width;
     cameraInfo.pitch  =   (1.0)*3.14/180;
     cameraInfo.yaw = 0 ;
     cameraInfo.opticalCenter = cvPoint2D32f(msg->K.elems[2], msg->K.elems[5]);
     cameraInfo.cameraHeight = 1430;
     //camera_sub_.shutdown();
 }

void Lines::Line::drawInfiniteLine(IplImage* img, CvScalar color)
{

	CvPoint pt1 = cvPointFrom32f(cvPoint2D32f(-1000, -1000*Slope + Intercept));
	CvPoint pt2 = cvPointFrom32f(cvPoint2D32f(1000, 1000*Slope + Intercept));
	if (isVertical == false)
		cvLine(img, pt1, pt2, color, 1, 8, 0);
	else
		cvLine(img, cvPoint(point1.x, 0), cvPoint(point1.x, 1000), color, 1, 8, 0);
}

SimpleImageProjector::SimpleImageProjector(char* pathToProjection)
{
	projection = cvLoadImage(pathToProjection);
	if (projection == nullptr) {
		throw std::exception("Can not load projection image");
	}
	transformMat = cvCreateMat(3, 3, CV_32FC1);
	corners[0] = cvPoint2D32f(0, 0);
	corners[1] = cvPoint2D32f(projection->width-1, 0);
	corners[2] = cvPoint2D32f(0, projection->height-1);
	corners[3] = cvPoint2D32f(projection->width-1, projection->height-1);
}

CV_IMPL void
cvInitSubdivDelaunay2D( CvSubdiv2D * subdiv, CvRect rect )
{
    float big_coord = 3.f * MAX( rect.width, rect.height );
    CvPoint2D32f ppA, ppB, ppC;
    CvSubdiv2DPoint *pA, *pB, *pC;
    CvSubdiv2DEdge edge_AB, edge_BC, edge_CA;
    float rx = (float) rect.x;
    float ry = (float) rect.y;

    CV_FUNCNAME( "cvSubdivDelaunay2DInit" );

    __BEGIN__;

    if( !subdiv )
        CV_ERROR( CV_StsNullPtr, "" );

    cvClearSet( (CvSet *) (subdiv->edges) );
    cvClearSet( (CvSet *) subdiv );

    subdiv->quad_edges = 0;
    subdiv->recent_edge = 0;
    subdiv->is_geometry_valid = 0;

    subdiv->topleft = cvPoint2D32f( rx, ry );
    subdiv->bottomright = cvPoint2D32f( rx + rect.width, ry + rect.height );

    ppA = cvPoint2D32f( rx + big_coord, ry );
    ppB = cvPoint2D32f( rx, ry + big_coord );
    ppC = cvPoint2D32f( rx - big_coord, ry - big_coord );

    pA = cvSubdiv2DAddPoint( subdiv, ppA, 0 );
    pB = cvSubdiv2DAddPoint( subdiv, ppB, 0 );
    pC = cvSubdiv2DAddPoint( subdiv, ppC, 0 );

    edge_AB = cvSubdiv2DMakeEdge( subdiv );
    edge_BC = cvSubdiv2DMakeEdge( subdiv );
    edge_CA = cvSubdiv2DMakeEdge( subdiv );

    cvSubdiv2DSetEdgePoints( edge_AB, pA, pB );
    cvSubdiv2DSetEdgePoints( edge_BC, pB, pC );
    cvSubdiv2DSetEdgePoints( edge_CA, pC, pA );

    cvSubdiv2DSplice( edge_AB, cvSubdiv2DSymEdge( edge_CA ));
    cvSubdiv2DSplice( edge_BC, cvSubdiv2DSymEdge( edge_AB ));
    cvSubdiv2DSplice( edge_CA, cvSubdiv2DSymEdge( edge_BC ));

    subdiv->recent_edge = edge_AB;

    
    __END__;
}

void StereoDisplay::Draw()												// Draw Our Scene
{  

    IplImage* camera_image;
    GLfloat z=-20.0;
    if( show_right_ == TRUE)
      camera_image = camera1_->QueryFrame();
    else
      camera_image = camera0_->QueryFrame();

    show_right_ = !show_right_;

    glLoadIdentity();										// Reset The Modelview Matrix
    glBegin(GL_QUADS);										// Begin drawing the image texture
	   // Front Face
	   glTexCoord2f(1.0f, 1.0f); glVertex3f( 11.0f,  8.3f, z);
	   glTexCoord2f(0.0f, 1.0f); glVertex3f(-11.0f,  8.3f, z);
	   glTexCoord2f(0.0f, 0.0f); glVertex3f(-11.0f, -8.3f, z);
	   glTexCoord2f(1.0f, 0.0f); glVertex3f( 11.0f, -8.3f, z);
    glEnd();												// Done drawing texture
	 
    glFlush ();													// Flush The GL Rendering Pipeline
    
    if( true == recording_  )
    {
        cvLogPolar( camera_image, logpolarframe_, 
                    cvPoint2D32f(camera_image->width/2,camera_image->height/2), 
                    40, CV_INTER_LINEAR + CV_WARP_FILL_OUTLIERS);
        cvWriteFrame( writer_, logpolarframe_);
    }
   
}

void SCSM::TransformPoint(int angle, float scale, CvPoint orig_point,
    CvPoint &transform_point, CvPoint2D32f &transform_vector) {
    double origvec_x = static_cast<double>(orig_point.x - fixedCenter.x);
	double origvec_y = static_cast<double>(orig_point.y - fixedCenter.y);
    TransformVector(angle, scale, cvPoint2D32f(origvec_x, origvec_y),
        transform_point, transform_vector);
}

void CalcFourierDescriptorCoeff(CvSeq* seq_pts, int n_fourier,CvSeq* seq_fourier)
{
	int count = seq_pts->total;
	double *coeff_cos, *coeff_sin;
	coeff_cos = (double*)malloc(count*sizeof(double));
	coeff_sin = (double*)malloc(count*sizeof(double));
	int i;
	for(i = 0; i < count; i++)
	{
		coeff_sin[i] = sin(2*i*CV_PI/count);
		coeff_cos[i] = cos(2*i*CV_PI/count);
	}

	cvClearSeq(seq_fourier);
	for(int u = 0; u < n_fourier; u++)
	{
		CvPoint2D32f point_coeff = cvPoint2D32f(0, 0);
		for(i = 0; i < count; i+=4)
		{
			CvPoint* pt = (CvPoint*)cvGetSeqElem(seq_pts, i);
			point_coeff.x += (float)(pt->x*coeff_cos[(i*u)%count] + pt->y*coeff_sin[(i*u)%count]);
			point_coeff.y += (float)(pt->y*coeff_cos[(i*u)%count] - pt->x*coeff_sin[(i*u)%count]);
		}
		//point_coeff.x/=count;
		//point_coeff.y/=count;
		cvSeqPush(seq_fourier, &point_coeff);
	} 
	free(coeff_cos);
	free(coeff_sin);
}

void moCalibrationModule::triangulate() {
	// We first triangulate all the surfacePoints.
	// Afterwards, in transform mode when a new touch occurrs, we can
	// simply look up the triangle in which the touch was performed
	// and get the barycentric parameters of the touch in that triangle.
	// We then use these to compute the on screen coordinate of the touch.
	moPointList screenPoints  = this->property("screenPoints").asPointList();
	moPointList surfacePoints = this->property("surfacePoints").asPointList();
	assert(screenPoints.size() == surfacePoints.size());

	this->delaunayToScreen.clear();
    this->subdiv = cvCreateSubdivDelaunay2D(this->rect, this->storage);

	//add all the  surfacepoints we collected to the subdivision
	//use the delaunayToScreen map to associate them with corrosponding screen point
	moPointList::iterator it, its;
	for(it = surfacePoints.begin(), its = screenPoints.begin(); it != surfacePoints.end();  it++, its++) {
		CvPoint2D32f fp = cvPoint2D32f(it->x, it->y);
		CvSubdiv2DPoint *delaunayPoint = cvSubdivDelaunay2DInsert(subdiv, fp);
		this->delaunayToScreen[delaunayPoint] = (*its);
	}

	this->retriangulate = false;
	this->notifyGui();
}

/*
 * Return center point of rectangle.
 */
VALUE
rb_center(VALUE self)
{
  CvRect *rect = CVRECT(self);  
  return cCvPoint2D32f::new_object(cvPoint2D32f((float)rect->x + (float)rect->width / 2.0,
                                                (float)rect->y + (float)rect->height / 2.0));
}

int main(int argc, const char * argv[]) {
    CvCapture* capture = cvCreateFileCapture( argv[1] );
    if (!capture) return -1;
    
    IplImage* bgr_frame = cvQueryFrame( capture );
    double fps = cvGetCaptureProperty( capture ,  CV_CAP_PROP_FPS );
    CvSize size = cvSize(
        (int)cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH),
        (int)cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT)
    );
    CvVideoWriter* writer = cvCreateVideoWriter( argv[2], CV_FOURCC('M', 'J', 'P', 'G'), fps, size);
    IplImage* logpolar_frame = cvCreateImage(size, IPL_DEPTH_8U, 3);
    
    while ( (bgr_frame = cvQueryFrame(capture)) != NULL ) {
        cvLogPolar(bgr_frame, logpolar_frame,
                   cvPoint2D32f(bgr_frame->width/2, bgr_frame->height/2),
                   40,
                   CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS );
        cvWriteFrame(writer, logpolar_frame);
    }
    cvReleaseVideoWriter( &writer );
    cvReleaseImage( &logpolar_frame );
    cvReleaseCapture( &capture );
    return 0;
}