4 #include <visp3/core/vpConfig.h>
13 #if defined(HAVE_OPENCV_IMGPROC) \
14 && (((VISP_HAVE_OPENCV_VERSION < 0x050000) && defined(HAVE_OPENCV_OBJDETECT)) || ((VISP_HAVE_OPENCV_VERSION >= 0x050000) && defined(HAVE_OPENCV_XOBJDETECT))) \
15 && (defined(VISP_HAVE_V4L2) || (((VISP_HAVE_OPENCV_VERSION < 0x030000) && defined(HAVE_OPENCV_HIGHGUI)) || ((VISP_HAVE_OPENCV_VERSION >= 0x030000) && defined(HAVE_OPENCV_VIDEOIO))))
17 #include <visp3/detection/vpDetectorFace.h>
18 #include <visp3/gui/vpDisplayFactory.h>
19 #ifdef VISP_HAVE_MODULE_SENSOR
20 #include <visp3/sensor/vpV4l2Grabber.h>
23 #if (VISP_HAVE_OPENCV_VERSION < 0x030000) && defined(HAVE_OPENCV_HIGHGUI)
24 #include <opencv2/highgui/highgui.hpp>
25 #elif (VISP_HAVE_OPENCV_VERSION >= 0x030000) && defined(HAVE_OPENCV_VIDEOIO)
26 #include <opencv2/videoio/videoio.hpp>
29 int main(
int argc,
const char *argv[])
31 #ifdef ENABLE_VISP_NAMESPACE
34 #if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
35 std::shared_ptr<vpDisplay> display;
40 std::string opt_face_cascade_name =
"./haarcascade_frontalface_alt.xml";
41 unsigned int opt_device = 0;
42 unsigned int opt_scale = 2;
45 for (
int i = 1; i < argc; i++) {
46 if (std::string(argv[i]) ==
"--haar" && i + 1 < argc) {
47 opt_face_cascade_name = std::string(argv[++i]);
49 else if (std::string(argv[i]) ==
"--device" && i + 1 < argc) {
50 opt_device = (
unsigned int)atoi(argv[++i]);
52 else if (std::string(argv[i]) ==
"--scale" && i + 1 < argc) {
53 opt_scale = (
unsigned int)atoi(argv[++i]);
55 else if ((std::string(argv[i]) ==
"--help") || (std::string(argv[i]) ==
"-h")) {
56 std::cout <<
"Usage: " << argv[0]
57 <<
" [--haar <haarcascade xml filename>]"
58 <<
" [--device <camera device>]"
59 <<
" [--scale <subsampling factor>]"
69 #if defined(VISP_HAVE_V4L2)
71 std::ostringstream device;
72 device <<
"/dev/video" << opt_device;
77 #elif ((VISP_HAVE_OPENCV_VERSION < 0x030000) && defined(HAVE_OPENCV_HIGHGUI))|| ((VISP_HAVE_OPENCV_VERSION >= 0x030000) && defined(HAVE_OPENCV_VIDEOIO))
78 cv::VideoCapture cap(opt_device);
79 #if (VISP_HAVE_OPENCV_VERSION >= 0x030000)
80 int width = (int)cap.get(cv::CAP_PROP_FRAME_WIDTH);
81 int height = (int)cap.get(cv::CAP_PROP_FRAME_HEIGHT);
82 cap.set(cv::CAP_PROP_FRAME_WIDTH, width / opt_scale);
83 cap.set(cv::CAP_PROP_FRAME_HEIGHT, height / opt_scale);
85 int width = cap.get(CV_CAP_PROP_FRAME_WIDTH);
86 int height = cap.get(CV_CAP_PROP_FRAME_HEIGHT);
87 cap.set(CV_CAP_PROP_FRAME_WIDTH, width / opt_scale);
88 cap.set(CV_CAP_PROP_FRAME_HEIGHT, height / opt_scale);
90 if (!cap.isOpened()) {
91 std::cout <<
"Failed to open the camera" << std::endl;
100 #if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
113 #if defined(VISP_HAVE_V4L2)
115 bool face_found = face_detector.
detect(I);
116 #elif ((VISP_HAVE_OPENCV_VERSION < 0x030000) && defined(HAVE_OPENCV_HIGHGUI))|| ((VISP_HAVE_OPENCV_VERSION >= 0x030000) && defined(HAVE_OPENCV_VIDEOIO))
119 bool face_found = face_detector.
detect(frame);
126 std::ostringstream text;
127 text <<
"Found " << face_detector.
getNbObjects() <<
" face(s)";
129 for (
size_t i = 0; i < face_detector.
getNbObjects(); i++) {
147 #if (VISP_CXX_STANDARD < VISP_CXX_STANDARD_11)
148 if (display !=
nullptr) {
158 #if !defined(HAVE_OPENCV_IMGPROC)
159 std::cout <<
"This tutorial needs OpenCV imgproc module that is missing." << std::endl;
161 #if (VISP_HAVE_OPENCV_VERSION < 0x050000) && !defined(HAVE_OPENCV_OBJDETECT)
162 std::cout <<
"This tutorial needs OpenCV objdetect module that is missing." << std::endl;
164 #if ((VISP_HAVE_OPENCV_VERSION >= 0x050000) && !defined(HAVE_OPENCV_XOBJDETECT))
165 std::cout <<
"This tutorial needs OpenCV xobjdetect module that is missing." << std::endl;
static const vpColor green
vpRect getBBox(size_t i) const
size_t getNbObjects() const
std::vector< std::string > & getMessage()
void setCascadeClassifierFile(const std::string &filename)
bool detect(const vpImage< unsigned char > &I) VP_OVERRIDE
Class that defines generic functionalities for display.
static bool getClick(const vpImage< unsigned char > &I, bool blocking=true)
static void display(const vpImage< unsigned char > &I)
static void setTitle(const vpImage< unsigned char > &I, const std::string &windowtitle)
static void flush(const vpImage< unsigned char > &I)
static void displayRectangle(const vpImage< unsigned char > &I, const vpImagePoint &topLeft, unsigned int width, unsigned int height, const vpColor &color, bool fill=false, unsigned int thickness=1)
static void displayText(const vpImage< unsigned char > &I, const vpImagePoint &ip, const std::string &s, const vpColor &color)
error that can be emitted by ViSP classes.
const char * getMessage() const
static void convert(const vpImage< unsigned char > &src, vpImage< vpRGBa > &dest)
unsigned int getHeight() const
Defines a rectangle in the plane.
Class that is a wrapper over the Video4Linux2 (V4L2) driver.
void setScale(unsigned scale=vpV4l2Grabber::DEFAULT_SCALE)
void setDevice(const std::string &devname)
void acquire(vpImage< unsigned char > &I)
std::shared_ptr< vpDisplay > createDisplay()
Return a smart pointer vpDisplay specialization if a GUI library is available or nullptr otherwise.
vpDisplay * allocateDisplay()
Return a newly allocated vpDisplay specialization if a GUI library is available or nullptr otherwise.
VISP_EXPORT double measureTimeMs()