opencvdnnfacedetector.h

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/* ============================================================
 *
 * This file is a part of digiKam
 *
 * Date        : 2019-07-22
 * Description : Class to perform faces detection using OpenCV DNN module
 *
 * Copyright (C) 2019 by Thanh Trung Dinh <dinhthanhtrung1996 at gmail dot com>
 * Copyright (C) 2020-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * 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, 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.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_FACESENGINE_OPENCV_DNN_FACE_DETECTOR_H
#define DIGIKAM_FACESENGINE_OPENCV_DNN_FACE_DETECTOR_H
 
// Qt includes
 
#include <QImage>
#include <QList>
#include <QRect>
 
// Local includes
 
#include "digikam_opencv.h"
#include "dimg.h"
#include "dnnfacedetectorbase.h"
 
namespace Digikam
{
 
enum DetectorNNModel
{
    SSDMOBILENET = 0,   
    YOLO                
};
 
class OpenCVDNNFaceDetector
{
 
public:
 
    explicit OpenCVDNNFaceDetector(DetectorNNModel model = DetectorNNModel::SSDMOBILENET);
    ~OpenCVDNNFaceDetector();
 
    cv::Mat prepareForDetection(const DImg& inputImage, cv::Size& paddedSize)        const;
    cv::Mat prepareForDetection(const QImage& inputImage, cv::Size& paddedSize)      const;
    cv::Mat prepareForDetection(const QString& inputImagePath, cv::Size& paddedSize) const;
 
    QList<QRect> detectFaces(const cv::Mat& inputImage, const cv::Size& paddedSize);
    std::vector<cv::Rect> cvDetectFaces(const cv::Mat& inputImage, const cv::Size& paddedSize);
 
    static int recommendedImageSizeForDetection();
 
private:
 
    cv::Mat prepareForDetection(cv::Mat& cvImage, cv::Size& paddedSize)              const;
 
private:
 
    // Disable
    OpenCVDNNFaceDetector(const OpenCVDNNFaceDetector&)            = delete;
    OpenCVDNNFaceDetector& operator=(const OpenCVDNNFaceDetector&) = delete;
 
private:
 
    DetectorNNModel      m_modelType;
    DNNFaceDetectorBase* m_inferenceEngine;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_FACESENGINE_OPENCV_DNN_FACE_DETECTOR_H