/usr/include/libkface/facedetector.h is in libkface-dev 4:15.08.2-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | /** ===========================================================
* @file
*
* This file is a part of digiKam project
* <a href="http://www.digikam.org">http://www.digikam.org</a>
*
* @date 2010-09-02
* @brief A convenience class for a standalone face detector
*
* @author Copyright (C) 2010 by Marcel Wiesweg
* <a href="mailto:marcel dot wiesweg at gmx dot de">marcel dot wiesweg at gmx dot de</a>
* @author Copyright (C) 2010 by Aditya Bhatt
* <a href="mailto:adityabhatt1991 at gmail dot com">adityabhatt1991 at gmail dot com</a>
* @author Copyright (C) 2010-2014 by Gilles Caulier
* <a href="mailto:caulier dot gilles at gmail dot com">caulier dot gilles at gmail dot com</a>
*
* 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 KFACE_FACEDETECTOR_H
#define KFACE_FACEDETECTOR_H
// Qt includes
#include <QExplicitlySharedDataPointer>
#include <QImage>
#include <QVariant>
// Local includes
#include "libkface_export.h"
namespace KFaceIface
{
class KFACE_EXPORT FaceDetector
{
public:
/**
* Provides face detection, that means the process of selecting
* those regions of a full image which contain face.
*
* This class provides shallow copying
* The class is fully reentrant (a single object and its copies are not thread-safe).
* Deferred creation is guaranteed, that means creation of a FaceDetector
* object is cheap, the expensive creation of the detection backend
* is performed when detectFaces is called for the first time.
*/
FaceDetector();
FaceDetector(const FaceDetector& other);
~FaceDetector();
QString backendIdentifier() const;
FaceDetector& operator=(const FaceDetector& other);
/**
* Scan an image for faces. Return a list with regions possibly
* containing faces.
* If the image has been downscaled anywhere in the process,
* provide the original size of the image as this may be of importance in the detection process.
*
* Found faces are returned in relative coordinates.
*/
QList<QRectF> detectFaces(const QImage& image, const QSize& originalSize = QSize());
/**
* Tunes backend parameters.
* Available parameters:
*
* "speed" vs. "accuracy", 0..1, float
* "sensitivity" vs. "specificity", 0..1, float.
*
* For both pairs: a = 1-b, you can set either.
* The first pair changes the ROC curve in a trade for computing time.
* The second pair moves on a given ROC curve towards more false positives, or more missed faces.
*/
void setParameter(const QString& parameter, const QVariant& value);
void setParameters(const QVariantMap& parameters);
QVariantMap parameters() const;
/**
* Returns the recommended size if you want to scale images for detection.
* Larger images can be passed, but may be downscaled.
*/
int recommendedImageSize(const QSize& availableSize = QSize()) const;
static QRectF toRelativeRect(const QRect& absoluteRect, const QSize& size);
static QRect toAbsoluteRect(const QRectF& relativeRect, const QSize& size);
static QList<QRectF> toRelativeRects(const QList<QRect>& absoluteRects, const QSize& size);
static QList<QRect> toAbsoluteRects(const QList<QRectF>& relativeRects, const QSize& size);
private:
class Private;
QExplicitlySharedDataPointer<Private> d;
};
} // namespace KFaceIface
#endif // KFACE_FACEDETECTOR_H
|