手部位置跟踪opencv程序.docx

/* HandVu - a library for computer vision-based hand gesture* recognition.* Copyright (C) 2004 Mathias Kolsch, * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA.* $Id: hv_OpenCV.cpp,v 1.15 2006/01/03 21:44:15 matz Exp $*/#ifdef WIN32#include #endif#include #include #include #include #include #include HandVu.hIplImage *capture_image = 0;IplImage *display_image = 0;bool async_processing = false;int num_async_bufs = 30;IplImage *m_async_image = 0;int m_async_bufID = -1;bool sync_display = true;CvPoint origin;int select_object = 0;int sel_area_left=0, sel_area_top=0, sel_area_right=0, sel_area_bottom=0;bool correct_distortion = false;void OnMouse( int event, int x, int y, int /*flags*/, void* /*params*/ ) if( !capture_image ) return; if( capture_image-origin ) y = capture_image-height - y; if( select_object ) sel_area_left = MIN(x,origin.x); sel_area_top = MIN(y,origin.y); sel_area_right = sel_area_left + CV_IABS(x - origin.x); sel_area_bottom = sel_area_top + CV_IABS(y - origin.y); sel_area_left = MAX( sel_area_left, 0 ); sel_area_top = MAX( sel_area_top, 0 ); sel_area_right = MIN( sel_area_right, capture_image-width ); sel_area_bottom = MIN( sel_area_bottom, capture_image-height ); if( sel_area_right-sel_area_left 0 & sel_area_bottom-sel_area_top 0 ) hvSetDetectionArea(sel_area_left, sel_area_top, sel_area_right, sel_area_bottom); switch( event ) case CV_EVENT_LBUTTONDOWN: origin = cvPoint(x,y); sel_area_left = sel_area_right = x; sel_area_top = sel_area_bottom = y; select_object = 1; break; case CV_EVENT_LBUTTONUP: select_object = 0; break; void showFrame(IplImage* img, hvAction action) if (action=HV_DROP_FRAME) / HandVu recommends dropping the frame entirely / printf(HandVuFilter: dropping framen); return; else if (action=HV_SKIP_FRAME) / HandVu recommends displaying the frame, but not doing any further / processing on it - keep going / printf(HandVuFilter: supposed to skip framen); else if (action=HV_PROCESS_FRAME) / full processing was done and is recommended for following steps; / keep going /printf(HandVuFilter: processed framen); else assert(0); / unknown action hvState state; hvGetState(0, state); cvShowImage( HandVu, img );void displayCallback(IplImage* img, hvAction action) if (sync_display) cvCopy(img, display_image); else showFrame(img, action); int main( int argc, char* argv ) CvCapture* capture = 0; if (argc2) printf(you need to specify a conductor file as first argumentn); printf(for example: ./config/default.conductorn); return -1; string conductor_fname(argv1); printf(will load conductor from file:n%sn, conductor_fname.c_str(); if( argc = 2 | argc = 3) int num = 0; if (argc=3) num = atoi(argv2); capture = cvCaptureFromCAM( num ); if (!capture) capture = cvCaptureFromAVI( argv2 ); if( !capture ) fprintf(stderr,Could not initialize capturing through OpenCV.n); return -1; printf( Hot keys: n tESC - quit the programn tr - restart the trackingn t0-3 - set the overlay (verbosity) leveln use the mouse to select the initial detection arean ); int p = 0; / according to docs, these calls dont work in OpenCV beta 4 yet p = cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH, 640); p = cvSetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT, 480); capture_image = cvQueryFrame( capture ); if ( !capture_image ) fprintf(stderr,Could not retrieve image through OpenCV.n); return -1; /* allocate all the buffers */ CvSize size = cvGetSize(capture_image); hvInitialize(size.width, size.height); hvLoadConductor(conductor_fname); hvStartRecognition(); hvSetOverlayLevel(2); if (async_processing) hvAsyncSetup(num_async_bufs, displayCallback); if (sync_display) display_image = cvCloneImage(capture_image); cvSetMouseCallback( HandVu, OnMouse ); int success = cvNamedWindow( HandVu, 1 ); if (success!=1) printf(cant open window - did you compile OpenCV with highgui support?); return -1; fprintf(stderr, initialized highguin); for (;) int c; if (async_processing) / asynchronous processing in HandVu if (sync_display) cvShowImage(HandVu, display_image); / - main library call - hvAsyncGetImageBuffer(&m_async_image, &m_async_bufID); cvCopy(capture_image, m_async_image); hvAsyncProcessFrame(m_async_bufID); / - else / synchronous processing in HandVu / - main library call - hvAction action = HV_INVALID_ACTION; action = hvProcessFrame(capture_image); / - showFrame(capture_image, action); c = cvWaitKey(10); if( c = 27 | c = q ) break; switch( c ) case r: hvStopRecognition(); hvStartRecognition(); break; case 0: hvSetOverlayLevel(0); break; case 1: hvSetOverlayLevel(1); break; case 2: hvSetOverlayLevel(2); break; case 3: hvSetOverlayLevel(3); break; case u: if (hvCanCorrectDistortion() correct_distortion = !correct_disto