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375 | /* ============================================================
*
* This file is a part of digiKam project
* https://www.digikam.org
*
* Date : 2020-05-13
* Description : Testing tool for different variations in dnn face detection of face engines
*
* SPDX-FileCopyrightText: 2020 by Nghia Duong <minhnghiaduong997 at gmail dot com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* ============================================================ */
// Qt includes
#include <QApplication>
#include <QCommandLineParser>
#include <QMainWindow>
#include <QScrollArea>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QListWidget>
#include <QListWidgetItem>
#include <QDir>
#include <QImage>
#include <QElapsedTimer>
#include <QLabel>
#include <QPen>
#include <QPainter>
// Local includes
#include "digikam_debug.h"
#include "opencvdnnfacedetector.h"
#include "facedetector.h"
using namespace Digikam;
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(const QDir& directory, QWidget* const parent = nullptr);
~MainWindow() override;
private:
QPixmap showCVMat(const cv::Mat& cvimage) const;
QList<QRectF> detectFaces(const QString& imagePath) const;
void extractFaces(const QImage& img, QImage& imgScaled, const QList<QRectF>& faces);
QWidget* setupFullImageArea();
QWidget* setupPaddedImage();
QWidget* setupCroppedFaceArea();
QWidget* setupImageList(const QDir& directory);
private Q_SLOTS:
void slotDetectFaces(const QListWidgetItem* imageItem);
private:
OpenCVDNNFaceDetector* m_detector = nullptr;
QLabel* m_fullImage = nullptr;
QLabel* m_paddedImage = nullptr;
QListWidget* m_imageListView = nullptr;
QListWidget* m_croppedfaceList = nullptr;
};
MainWindow::MainWindow(const QDir& directory, QWidget* const parent)
: QMainWindow(parent)
{
setWindowTitle(QLatin1String("Face detection Test"));
m_detector = new OpenCVDNNFaceDetector(DetectorNNModel::DNNDetectorYuNet);
// Image area
QWidget* const imageArea = new QWidget(this);
// TODO add control panel to adjust detection hyper parameters
QWidget* const controlPanel = new QWidget;<--- Variable 'controlPanel' can be declared as pointer to const
QHBoxLayout* const processingLayout = new QHBoxLayout(imageArea);
processingLayout->addWidget(setupFullImageArea());
processingLayout->addWidget(setupPaddedImage());
processingLayout->addWidget(setupCroppedFaceArea());
processingLayout->addWidget(controlPanel);
QSizePolicy spHigh(QSizePolicy::Preferred, QSizePolicy::Expanding);
imageArea->setSizePolicy(spHigh);
QWidget* const mainWidget = new QWidget(this);
QVBoxLayout* const mainLayout = new QVBoxLayout(mainWidget);
mainLayout->addWidget(imageArea);
mainLayout->addWidget(setupImageList(directory));
setCentralWidget(mainWidget);
}
MainWindow::~MainWindow()
{
delete m_detector;
delete m_fullImage;
delete m_paddedImage;
delete m_imageListView;
delete m_croppedfaceList;
}
void MainWindow::slotDetectFaces(const QListWidgetItem* imageItem)
{
QString imagePath = imageItem->text();
qCDebug(DIGIKAM_TESTS_LOG) << "Loading " << imagePath;
QImage img(imagePath);
QImage imgScaled(img.scaled(416, 416, Qt::KeepAspectRatio));
// Clear faces layout.
QListWidgetItem* wItem = nullptr;
while ((wItem = m_croppedfaceList->item(0)) != nullptr)
{
delete wItem;
}
QList<QRectF> faces = detectFaces(imagePath);
extractFaces(img, imgScaled, faces);
// Only setPixmap after finishing drawing bboxes around detected faces.
m_fullImage->setPixmap(QPixmap::fromImage(imgScaled));
}
QPixmap MainWindow::showCVMat(const cv::Mat& cvimage) const
{
if ((cvimage.cols * cvimage.rows) != 0)
{
cv::Mat rgb;
QPixmap p;
cv::cvtColor(cvimage, rgb, (-2 * cvimage.channels() + 10));
p.convertFromImage(QImage(rgb.data, rgb.cols, rgb.rows, QImage::Format_RGB888));
return p;
}
return QPixmap();
}
QList<QRectF> MainWindow::detectFaces(const QString& imagePath) const
{
QImage img(imagePath);
/*
cv::Mat img;
img = cv::imread(imagePath.toStdString());
if (!img.data )
{
qCDebug(DIGIKAM_TESTS_LOG) << "Open cv Could not open or find the image";
}
*/
QList<QRectF> faces;
try
{
QElapsedTimer timer;
unsigned int elapsedDetection = 0;
timer.start();
// NOTE: detection with filePath won't work when format is not standard.
// NOTE: unexpected behaviour with detecFaces(const QString&).
cv::Size paddedSize(0, 0);
cv::Mat cvImage = m_detector->prepareForDetection(img, paddedSize);
QList<QRect> absRects = m_detector->detectFaces(cvImage, paddedSize);
faces = FaceDetector::toRelativeRects(absRects,
QSize(cvImage.cols - 2 * paddedSize.width,
cvImage.rows - 2 * paddedSize.height));
elapsedDetection = timer.elapsed();
// Debug padded image.
m_paddedImage->setPixmap(showCVMat(cvImage));
qCDebug(DIGIKAM_TESTS_LOG) << "(Input CV) Found " << absRects.size() << " faces, in " << elapsedDetection << "ms";
}
catch (cv::Exception& e)
{
qCWarning(DIGIKAM_TESTS_LOG) << "cv::Exception:" << e.what();
}
catch (...)
{
qCWarning(DIGIKAM_TESTS_LOG) << "Default exception from OpenCV";
}
return faces;
}
void MainWindow::extractFaces(const QImage& img, QImage& imgScaled, const QList<QRectF>& faces)
{
if (faces.isEmpty())
{
qCWarning(DIGIKAM_TESTS_LOG) << "No face detected";
return;
}
qCDebug(DIGIKAM_TESTS_LOG) << "Coordinates of detected faces : ";
for (const QRectF& r : std::as_const(faces))
{
qCDebug(DIGIKAM_TESTS_LOG) << r;
}
QPainter painter(&imgScaled);
QPen paintPen(Qt::green);
paintPen.setWidth(1);
painter.setPen(paintPen);
for (const QRectF& rr : std::as_const(faces))
{
QRect rectDraw = FaceDetector::toAbsoluteRect(rr, imgScaled.size());
QRect rect = FaceDetector::toAbsoluteRect(rr, img.size());
QImage part = img.copy(rect);
// Show cropped faces.
QIcon croppedFace(QPixmap::fromImage(part.scaled(qMin(img.size().width(), 100),
qMin(img.size().width(), 100),
Qt::KeepAspectRatio)));
m_croppedfaceList->addItem(new QListWidgetItem(croppedFace, QLatin1String("")));
painter.drawRect(rectDraw);
}
}
QWidget* MainWindow::setupFullImageArea()
{
m_fullImage = new QLabel;
m_fullImage->setScaledContents(true);
QSizePolicy spImage(QSizePolicy::Preferred, QSizePolicy::Expanding);
spImage.setHorizontalStretch(3);
m_fullImage->setSizePolicy(spImage);
return m_fullImage;
}
QWidget* MainWindow::setupPaddedImage()
{
m_paddedImage = new QLabel;
m_paddedImage->setScaledContents(true);
QSizePolicy spImage(QSizePolicy::Preferred, QSizePolicy::Expanding);
spImage.setHorizontalStretch(3);
m_paddedImage->setSizePolicy(spImage);
return m_paddedImage;
}
QWidget* MainWindow::setupCroppedFaceArea()
{
QScrollArea* const facesArea = new QScrollArea(this);
facesArea->setWidgetResizable(true);
facesArea->setAlignment(Qt::AlignRight);
facesArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
facesArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
QSizePolicy spImage(QSizePolicy::Preferred, QSizePolicy::Expanding);
spImage.setHorizontalStretch(1);
facesArea->setSizePolicy(spImage);
m_croppedfaceList = new QListWidget(this);
m_croppedfaceList->setViewMode(QListView::IconMode);
m_croppedfaceList->setIconSize(QSize(200, 150));
m_croppedfaceList->setResizeMode(QListWidget::Adjust);
m_croppedfaceList->setFlow(QListView::TopToBottom);
m_croppedfaceList->setWrapping(false);
m_croppedfaceList->setDragEnabled(false);
/*
connect(m_croppedfaceList, &QListWidget::currentItemChanged,
this, &MainWindow::slotDetectFaces);
*/
facesArea->setWidget(m_croppedfaceList);
return facesArea;
}
QWidget* MainWindow::setupImageList(const QDir& directory)
{
// Itemlist area.
QScrollArea* const itemsArea = new QScrollArea;
itemsArea->setWidgetResizable(true);
itemsArea->setAlignment(Qt::AlignBottom);
itemsArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
itemsArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
QSizePolicy spLow(QSizePolicy::Preferred, QSizePolicy::Fixed);
itemsArea->setSizePolicy(spLow);
m_imageListView = new QListWidget(this);
m_imageListView->setViewMode(QListView::IconMode);
m_imageListView->setIconSize(QSize(200, 150));
m_imageListView->setResizeMode(QListWidget::Adjust);
m_imageListView->setFlow(QListView::LeftToRight);
m_imageListView->setWrapping(false);
m_imageListView->setDragEnabled(false);
QStringList subjects = directory.entryList(QDir::Files | QDir::NoDotAndDotDot);
for (QStringList::const_iterator iter = subjects.cbegin();
iter != subjects.cend();
++iter)
{
QString filePath = directory.filePath(*iter);
QListWidgetItem* const item = new QListWidgetItem(QIcon(filePath), filePath);
m_imageListView->addItem(item);
}
connect(m_imageListView, &QListWidget::currentItemChanged,
this, &MainWindow::slotDetectFaces);
itemsArea->setWidget(m_imageListView);
return itemsArea;
}
QCommandLineParser* parseOptions(const QCoreApplication& app)
{
QCommandLineParser* const parser = new QCommandLineParser();
parser->addOption(QCommandLineOption(QLatin1String("dataset"), QLatin1String("Data set folder"), QLatin1String("path relative to data folder")));
parser->addHelpOption();
parser->process(app);
return parser;
}
int main(int argc, char* argv[])
{
QApplication app(argc, argv);
app.setApplicationName(QString::fromLatin1("digikam")); // for DB init.
// Options for commandline parser.
QCommandLineParser* const parser = parseOptions(app);
if (! parser->isSet(QLatin1String("dataset")))
{
qWarning("Data set is not set !!!");
return 1;
}
QDir dataset(parser->value(QLatin1String("dataset")));
MainWindow* const window = new MainWindow(dataset, nullptr);
window->show();
return app.exec();
}
#include "benchmark_dnndetection_gui.moc"
|