/*M/////////////////////////////////////////////////////////////////////////////////////// // // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. // // By downloading, copying, installing or using the software you agree to this license. // If you do not agree to this license, do not download, install, // copy or use the software. // // // Intel License Agreement // For Open Source Computer Vision Library // // Copyright (C) 2000, Intel Corporation, all rights reserved. // Third party copyrights are property of their respective owners. // // Redistribution and use in source and binary forms, with or without modification, // are permitted provided that the following conditions are met: // // * Redistribution's of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // * Redistribution's in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // // * The name of Intel Corporation may not be used to endorse or promote products // derived from this software without specific prior written permission. // // This software is provided by the copyright holders and contributors "as is" and // any express or implied warranties, including, but not limited to, the implied // warranties of merchantability and fitness for a particular purpose are disclaimed. // In no event shall the Intel Corporation or contributors be liable for any direct, // indirect, incidental, special, exemplary, or consequential damages // (including, but not limited to, procurement of substitute goods or services; // loss of use, data, or profits; or business interruption) however caused // and on any theory of liability, whether in contract, strict liability, // or tort (including negligence or otherwise) arising in any way out of // the use of this software, even if advised of the possibility of such damage. // //M*/ /////////////////////////////////////////////// //// Created by Khudyakov V.A. bober@gorodok.net ////////////////////////////////////////////// // FaceDetection.cpp: implementation of the FaceDetection class. // ////////////////////////////////////////////////////////////////////// #include "precomp.hpp" #include "_facedetection.h" int CV_CDECL CompareContourRect(const void* el1, const void* el2, void* userdata); ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// FaceDetection::FaceDetection() { m_imgGray = NULL; m_imgThresh = NULL; m_mstgContours = NULL; memset(m_seqContours, 0, sizeof(CvSeq*) * MAX_LAYERS); m_mstgRects = NULL; m_seqRects = NULL; m_iNumLayers = 16; assert(m_iNumLayers <= MAX_LAYERS); m_pFaceList = new FaceDetectionList(); m_bBoosting = false; }// FaceDetection() FaceDetection::~FaceDetection() { if (m_imgGray) cvReleaseImage(&m_imgGray); if (m_imgThresh) cvReleaseImage(&m_imgThresh); if (m_mstgContours) cvReleaseMemStorage(&m_mstgContours); if (m_mstgRects) cvReleaseMemStorage(&m_mstgRects); }// ~FaceDetection() void FaceDetection::FindContours(IplImage* imgGray) { ReallocImage(&m_imgThresh, cvGetSize(imgGray), 1); if (NULL == m_imgThresh) return; // int iNumLayers = m_iNumLayers; int iMinLevel = 0, iMaxLevel = 255, iStep = 255 / iNumLayers; ThresholdingParam(imgGray, iNumLayers, iMinLevel, iMaxLevel, iStep); // init cvReleaseMemStorage(&m_mstgContours); m_mstgContours = cvCreateMemStorage(); if (NULL == m_mstgContours) return; memset(m_seqContours, 0, sizeof(CvSeq*) * MAX_LAYERS); cvReleaseMemStorage(&m_mstgRects); m_mstgRects = cvCreateMemStorage(); if (NULL == m_mstgRects) return; m_seqRects = cvCreateSeq(0, sizeof(CvSeq), sizeof(CvContourRect), m_mstgRects); if (NULL == m_seqRects) return; // find contours for (int l = iMinLevel, i = 0; l < iMaxLevel; l += iStep, i++) { cvThreshold(imgGray, m_imgThresh, (double)l, (double)255, CV_THRESH_BINARY); if (cvFindContours(m_imgThresh, m_mstgContours, &m_seqContours[i], sizeof(CvContour), CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE)) AddContours2Rect(m_seqContours[i], l, i); } // sort rects cvSeqSort(m_seqRects, CompareContourRect, NULL); }// void FaceDetection::FindContours(IplImage* imgGray) #define GIST_STEP 10 #define GIST_NUM (256 / GIST_STEP) #define GIST_MIN 32 void FaceDetection::ThresholdingParam(IplImage *imgGray, int iNumLayers, int &iMinLevel, int &iMaxLevel, int &iStep) { assert(imgGray != NULL); assert(imgGray->nChannels == 1); int i, j; // create gistogramm uchar* buffImg = (uchar*)imgGray->imageData; int gistImg[GIST_NUM + 1] = {0}; for (j = 0; j < imgGray->height; j ++) { for (i = 0; i < imgGray->width; i ++) { int ind = buffImg[i] / GIST_STEP; gistImg[ind] ++; } buffImg += imgGray->widthStep; } // params for (i = 0; i <= GIST_NUM; i ++) { if (gistImg[i] >= GIST_MIN) break; } iMinLevel = i * GIST_STEP; for (i = GIST_NUM; i >= 0; i --) { if (gistImg[i] >= GIST_MIN) break; } iMaxLevel = i * GIST_STEP; int dLevels = iMaxLevel - iMinLevel; if (dLevels <= 0) { iMinLevel = 0; iMaxLevel = 255; } else if (dLevels <= iNumLayers) { iMinLevel = iMaxLevel - iNumLayers; if (iMinLevel < 0) { iMinLevel = 0; iMaxLevel = iNumLayers; } } iStep = (iMaxLevel - iMinLevel) / iNumLayers; }// void FaceDetection::ThresholdingParam(IplImage *imgGray, int iNumLayers, int &iMinLevel, int &iMaxLevel, int &iStep) #ifndef MAX_ERROR #define MAX_ERROR 0xFFFFFFFF #endif //MAX_ERROR void FaceDetection::CreateResults(CvSeq * lpSeq) { Face * tmp; double Max = 0; double CurStat = 0; FaceData tmpData; if (m_bBoosting) { tmp = m_pFaceList->GetData(); tmp->CreateFace(&tmpData); CvFace tmpFace; tmpFace.MouthRect = tmpData.MouthRect; tmpFace.LeftEyeRect = tmpData.LeftEyeRect; tmpFace.RightEyeRect = tmpData.RightEyeRect; cvSeqPush(lpSeq,&tmpFace); }else { while ( (tmp = m_pFaceList->GetData()) != 0 ) { CurStat = tmp->GetWeight(); if (CurStat > Max) Max = CurStat; } while ( (tmp = m_pFaceList->GetData()) != 0 ) { tmp->CreateFace(&tmpData); CurStat = tmp->GetWeight(); if (CurStat == Max) { CvFace tmpFace; tmpFace.MouthRect = tmpData.MouthRect; tmpFace.LeftEyeRect = tmpData.LeftEyeRect; tmpFace.RightEyeRect = tmpData.RightEyeRect; cvSeqPush(lpSeq,&tmpFace); } } } }// void FaceDetection::DrawResult(IplImage* img) void FaceDetection::ResetImage() { delete m_pFaceList; m_pFaceList = new FaceDetectionList(); }//FaceDetection::ResetImage void FaceDetection::AddContours2Rect(CvSeq *seq, int color, int iLayer) { assert(m_mstgRects != NULL); assert(m_seqRects != NULL); CvContourRect cr; for (CvSeq* external = seq; external; external = external->h_next) { cr.r = cvContourBoundingRect(external, 1 ); cr.pCenter.x = cr.r.x + cr.r.width / 2; cr.pCenter.y = cr.r.y + cr.r.height / 2; cr.iNumber = iLayer; cr.iType = 6; cr.iFlags = 0; cr.seqContour = external; cr.iContourLength = external->total; cr.iColor = color; cvSeqPush(m_seqRects, &cr); for (CvSeq* internal = external->v_next; internal; internal = internal->h_next) { cr.r = cvContourBoundingRect(internal, 0); cr.pCenter.x = cr.r.x + cr.r.width / 2; cr.pCenter.y = cr.r.y + cr.r.height / 2; cr.iNumber = iLayer; cr.iType = 12; cr.iFlags = 0; cr.seqContour = internal; cr.iContourLength = internal->total; cr.iColor = color; cvSeqPush(m_seqRects, &cr); } } }// void FaceDetection::AddContours2Rect(CvSeq *seq, int color, int iLayer) int CV_CDECL CompareContourRect(const void* el1, const void* el2, void* /*userdata*/) { return (((CvContourRect*)el1)->pCenter.y - ((CvContourRect*)el2)->pCenter.y); }// int CV_CDECL CompareContourRect(const void* el1, const void* el2, void* userdata) void FaceDetection::FindFace(IplImage *img) { // find all contours FindContours(img); // ResetImage(); if (m_bBoosting) PostBoostingFindCandidats(img); else FindCandidats(); }// void FaceDetection::FindFace(IplImage *img) void FaceDetection::FindCandidats() { bool bFound1 = false; MouthFaceTemplate * lpFaceTemplate1; RFace * lpFace1; bool bInvalidRect1 = false; CvRect * lpRect1 = NULL; for (int i = 0; i < m_seqRects->total; i++) { CvContourRect* pRect = (CvContourRect*)cvGetSeqElem(m_seqRects, i); CvRect rect = pRect->r; if (rect.width >= 2*rect.height) { lpFaceTemplate1 = new MouthFaceTemplate(3,rect,3*(double)rect.width/(double)4, 3*(double)rect.width/(double)4, (double)rect.width/(double)2, (double)rect.width/(double)2); lpFace1 = new RFace(lpFaceTemplate1); for (int j = 0; j < m_seqRects->total; j++) { CvContourRect* pRect = (CvContourRect*)cvGetSeqElem(m_seqRects, j); if ( !bInvalidRect1 ) { lpRect1 = NULL; lpRect1 = new CvRect(); *lpRect1 = pRect->r; }else { delete lpRect1; lpRect1 = new CvRect(); *lpRect1 = pRect->r; } if ( lpFace1->isFeature(lpRect1) ) { bFound1 = true; bInvalidRect1 = false; }else bInvalidRect1 = true; } if (bFound1) { m_pFaceList->AddElem(lpFace1); bFound1 = false; lpFace1 = NULL; }else { delete lpFace1; lpFace1 = NULL; } delete lpFaceTemplate1; } } } void FaceDetection::PostBoostingFindCandidats(IplImage * FaceImage) { BoostingFaceTemplate * lpFaceTemplate1; RFace * lpFace1; bool bInvalidRect1 = false; CvRect * lpRect1 = NULL; if ( ( !FaceImage->roi ) ) lpFaceTemplate1 = new BoostingFaceTemplate(3,cvRect(0,0,FaceImage->width,FaceImage->height)); else lpFaceTemplate1 = new BoostingFaceTemplate(3,cvRect(FaceImage->roi->xOffset,FaceImage->roi->yOffset, FaceImage->roi->width,FaceImage->roi->height)); lpFace1 = new RFace(lpFaceTemplate1); for (int i = 0; i < m_seqRects->total; i++) { CvContourRect* pRect = (CvContourRect*)cvGetSeqElem(m_seqRects, i); if ( !bInvalidRect1 ) { lpRect1 = NULL; lpRect1 = new CvRect(); *lpRect1 = pRect->r; }else { delete lpRect1; lpRect1 = new CvRect(); *lpRect1 = pRect->r; } if ( lpFace1->isFeature(lpRect1) ) { //bFound1 = true; bInvalidRect1 = false; }else bInvalidRect1 = true; } m_pFaceList->AddElem(lpFace1); delete lpFaceTemplate1; }//void FaceDetection::PostBoostingFindCandidats(IplImage * FaceImage) ///////////////////////// //class Face ////// //FaceDetectionList Class ///// FaceDetectionListElem::FaceDetectionListElem() { m_pNext = this; m_pPrev = this; m_pFace = NULL; }///FaceDetectionListElem::FaceDetectionListElem() FaceDetectionListElem::FaceDetectionListElem(Face * pFace,FaceDetectionListElem * pHead) { m_pNext = pHead; m_pPrev = pHead->m_pPrev; pHead->m_pPrev->m_pNext = this; pHead->m_pPrev = this; m_pFace = pFace; }//FaceDetectionListElem::FaceDetectionListElem(Face * pFace) FaceDetectionListElem::~FaceDetectionListElem() { delete m_pFace; m_pNext->m_pPrev = m_pPrev; m_pPrev->m_pNext = m_pNext; }//FaceDetectionListElem::~FaceDetectionListElem() FaceDetectionList::FaceDetectionList() { m_pHead = new FaceDetectionListElem(); m_FacesCount = 0; m_pCurElem = m_pHead; }//FaceDetectionList::FaceDetectionList() FaceDetectionList::~FaceDetectionList() { void * tmp; while((tmp = m_pHead->m_pNext->m_pFace) != 0) delete m_pHead->m_pNext; delete m_pHead; }//FaceDetectionList::~FaceDetectionList() int FaceDetectionList::AddElem(Face * pFace) { new FaceDetectionListElem(pFace,m_pHead); return m_FacesCount++; }//FaceDetectionList::AddElem(Face * pFace) Face * FaceDetectionList::GetData() { m_pCurElem = m_pCurElem->m_pNext; return m_pCurElem->m_pFace; }//Face * FaceDetectionList::GetData()