void MainWindow::on_actionColor_histogram_triggered()
{
QPixmap pixmap = pixmapItem->pixmap().copy();
QImage image = pixmap.toImage();
int width = image.width();
int height = image.height();
if (width == 0 || height == 0)
{
ui->statusBar->showMessage( tr("Error. Image bad size"), 3000 );
return;
}
int threshold = 180000;
picturesR.clear();
QString dirName = QFileDialog::getExistingDirectory(this, tr("Choose directory") );
QDir dir(dirName);
QDirIterator it(dir.absolutePath(), QDir::Files);
std::vector<int> origHist = colHist(pixmap);
for ( ; it.hasNext(); it.next() )
{
QString curFileName = it.filePath();
QPixmap curPixmap(curFileName);
if ( curPixmap.isNull() )
continue;
std::vector<int> curHist = colHist(curPixmap);
double dist = histDistance(origHist, curHist);
if (dist < threshold)
picturesR.append(curPixmap);
}
QString mes = tr("Images: ") + QString::number(picturesR.size());
ui->statusBar->showMessage(mes, 3000);
if (picturesR.size() > 0)
{
picturesRind = 0;
pixmapItem_2->setPixmap(picturesR[0]);
scene_2->setSceneRect(QRectF(picturesR[0].rect()));
}
}
double GazeTracker::covariancefunction_hist(vector<int> const& histogram1, vector<int> const& histogram2)
{
return histDistance(histogram1, histogram2);
}
