void
FaceDetector::run(){
CascadeClassifier cascade;
if (!cascade.load("res/haarcascade_frontalface_alt.xml") ) {
qDebug() << "Erreur lors du chargement du haar cascade frontalface...";
exit(0);
}
QSize processSize = keepAspectRatio(_image.cols, _image.rows, MAX_PROCESS_WIDTH, MAX_PROCESS_HEIGHT);
Mat color;
if ( _image.cols > processSize.width() ){
cv::resize( _image, color, cv::Size(processSize.width(), processSize.height() ) );
} else {
color = _image.clone();
}
QSize displaySize = keepAspectRatio(color.cols, color.rows);
_ratio = (double) color.cols/displaySize.width();
Mat gray;
cvtColor(color, gray, CV_BGR2GRAY);
//PRETRAITEMENT
equalizeHist(gray, gray);
vector<Rect> facesRects;
cascade.detectMultiScale(gray, facesRects, 1.1, 2, 0|CV_HAAR_SCALE_IMAGE, cvSize(16,16));
// qDebug() << "detected faces size: " << facesRects.size();
for (unsigned int i = 0; i < facesRects.size(); ++i){
Rect r = facesRects[i];
Mat croppedFace;
getRectSubPix(color, Size(r.width, r.height), Point2f(r.x + r.width/2, r.y + r.height / 2), croppedFace);
// qImageFaces << Mat2QImage(croppedFace);
struct DetectorData tmpData;
tmpData.id = i;
cv::resize( croppedFace, croppedFace, Size(WORK_SIZE,WORK_SIZE) );
tmpData.image = Mat2QImage(croppedFace);
emit sendFace( tmpData.image );
tmpData.rect = QRect(r.x/_ratio+1, r.y/_ratio+1, r.width/_ratio+1, r.height/_ratio+1);
tmpData.cvRect = r;
tmpData.mat = croppedFace;
cvtColor(croppedFace, tmpData.gray, CV_RGB2GRAY);
// cv::resize( tmpData.gray, tmpData.gray, Size(WORK_SIZE,WORK_SIZE) );
detectorData << tmpData;
}
qRegisterMetaType< QList<struct DetectorData> >( "QList<struct DetectorData>" );
emit detectionFinished( _index, detectorData );
}
void ImageItem::paint(QPainter *ppainter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
ppainter->save();
if (isSelected()) ppainter->setOpacity(Const::SELECTION_OPACITY);
else ppainter->setOpacity(qreal(opacity())/100);
QPointF point = rect().topLeft();
QImage img;
if (m_scale && !image().isNull()){
img = image().scaled(rect().width(), rect().height(), keepAspectRatio() ? Qt::KeepAspectRatio : Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
} else {
img = image();
}
qreal shiftHeight = rect().height() - img.height();
qreal shiftWidth = rect().width() - img.width();
if (m_center){
if (shiftHeight<0 || shiftWidth<0){
qreal cutX = 0;
qreal cutY = 0;
qreal cutWidth = img.width();
qreal cutHeigth = img.height();
if (shiftWidth > 0){
point.setX(point.x()+shiftWidth/2);
} else {
cutX = abs(shiftWidth/2);
cutWidth += shiftWidth;
}
if (shiftHeight > 0){
point.setY(point.x()+shiftHeight/2);
} else {
cutY = abs(shiftHeight/2);
cutHeigth += shiftHeight;
}
img = img.copy(cutX,cutY,cutWidth,cutHeigth);
} else {
point.setX(point.x()+shiftWidth/2);
point.setY(point.y()+shiftHeight/2);
}
}
if (img.isNull() && itemMode()==DesignMode){
QString text;
ppainter->setFont(transformToSceneFont(QFont("Arial",10)));
if (!datasource().isEmpty() && !field().isEmpty())
text = datasource()+"."+field();
else text = tr("Image");
ppainter->drawText(rect().adjusted(4,4,-4,-4), Qt::AlignCenter, text );
} else {
ppainter->drawImage(point,img);
}
ItemDesignIntf::paint(ppainter,option,widget);
ppainter->restore();
}