first commit

OpenCV_Cuda_Test1/OpenCV_Cuda_Test1.pro

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+QT -= gui
+
+CONFIG += c++11 console
+CONFIG -= app_bundle
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which as been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+INCLUDEPATH += H:\_Downloads\opencv\build\include
+
+LIBS += C:\opencv-build\bin\libopencv_core412.dll
+LIBS += C:\opencv-build\bin\libopencv_highgui412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgcodecs412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgproc412.dll
+LIBS += C:\opencv-build\bin\libopencv_features2d412.dll
+LIBS += C:\opencv-build\bin\libopencv_calib3d412.dll
+
+
+SOURCES += \
+        main.cpp
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

OpenCV_Cuda_Test1/OpenCV_Cuda_Test1.pro.user

@@ -0,0 +1,322 @@
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OpenCV_Cuda_Test1/main.cpp

@@ -0,0 +1,119 @@
+#include <QCoreApplication>
+
+#include <opencv2/core/core.hpp>
+#include <opencv2/core/ocl.hpp>
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+#include <opencv2/imgcodecs.hpp>
+
+#include <QDebug>
+#include <QElapsedTimer>
+
+
+int main(int argc, char *argv[])
+{
+
+    QCoreApplication a(argc, argv);
+    QElapsedTimer loading;
+
+
+
+    loading.start();
+    cv::Mat image = cv::imread("C://Effective_Bayer.tif", cv::IMREAD_GRAYSCALE);
+    if (image.empty())
+        qDebug() << "Image vide";
+
+    else {
+        qDebug() << "[CPU] Chargement OK : " << loading.elapsed() << "ms";
+
+        loading.restart();
+        cv::Mat image = cv::imread("C://Effective_Bayer.tif", cv::IMREAD_GRAYSCALE);
+        cv::UMat image2;
+        image.copyTo(image2);
+        qDebug() << "[GPU] Chargement OK : " << loading.elapsed() << "ms";
+
+
+        qDebug() << "Height : " << image.size().height;
+        qDebug() << "Width  : " << image.size().width;
+        if (image.channels() != 1) {
+            qDebug() << image.channels() << "channels found, need 1 only";
+            return 0;
+        }
+
+        qDebug() << "Channels : " << image.channels();
+        qDebug() << "\r\r";
+
+        cv::Mat image_debayer_cpu(image.size().height, image.size().width, CV_16UC3);
+        cv::UMat image_debayer_gpu(image.size().height, image.size().width, CV_16UC3);
+
+
+        std::vector<int> compression_params;
+        compression_params.push_back(259);
+        compression_params.push_back(1);
+
+
+        loading.restart();
+
+
+        cv::cvtColor(image, image_debayer_cpu, cv::COLOR_BayerBG2BGR);
+        qDebug() << "[CPU] cv::COLOR_BayerBG2BGR done in :\t\t" << loading.elapsed() << "ms";
+        loading.restart();
+
+        cv::cvtColor(image, image_debayer_cpu, cv::COLOR_BayerBG2BGR_EA);
+        qDebug() << "[CPU] cv::COLOR_BayerBG2BGR_EA done in :\t" << loading.elapsed() << "ms";
+        loading.restart();
+
+        cv::cvtColor(image, image_debayer_cpu, cv::COLOR_BayerBG2BGR_VNG);
+        qDebug() << "[CPU] cv::COLOR_BayerBG2BGR_VNG done in :\t" << loading.elapsed() << "ms";
+        loading.restart();
+
+        cv::cvtColor(image, image_debayer_cpu, cv::COLOR_BayerBG2BGRA);
+        qDebug() << "[CPU] cv::COLOR_BayerBG2BGRA done in :\t\t" << loading.elapsed() << "ms";
+
+
+        if (cv::ocl::haveOpenCL() == true) {
+
+
+            cv::ocl::Context ctx = cv::ocl::Context::getDefault();
+            if (!ctx.ptr())
+            {
+                qDebug() << "OpenCL is not available";
+                return 1;
+            }
+
+            cv::ocl::Device device = cv::ocl::Device::getDefault();
+            if (!device.compilerAvailable())
+            {
+                qDebug() << "OpenCL compiler is not available";
+                return 1;
+            }
+
+
+            loading.restart();
+
+            cv::cvtColor(image, image_debayer_gpu, cv::COLOR_BayerBG2BGR);
+            qDebug() << "[GPU] cv::COLOR_BayerBG2BGR done in :\t\t" << loading.elapsed() << "ms";
+            loading.restart();
+
+            cv::cvtColor(image, image_debayer_gpu, cv::COLOR_BayerBG2BGR_EA);
+            qDebug() << "[GPU] cv::COLOR_BayerBG2BGR_EA done in :\t" << loading.elapsed() << "ms";
+            loading.restart();
+
+            cv::cvtColor(image, image_debayer_gpu, cv::COLOR_BayerBG2BGR_VNG);
+            qDebug() << "[GPU] cv::COLOR_BayerBG2BGR_VNG done in :\t" << loading.elapsed() << "ms";
+            loading.restart();
+
+            cv::cvtColor(image, image_debayer_gpu, cv::COLOR_BayerBG2BGRA);
+            qDebug() << "[GPU] cv::COLOR_BayerBG2BGRA done in :\t\t" << loading.elapsed() << "ms";
+
+
+
+
+            loading.restart();
+            cv::imwrite("Output.tif", image_debayer_cpu, compression_params);
+            qDebug() << "saved in : " << loading.elapsed() << "ms";
+        }
+
+    }
+    return a.exec();
+}

OpenCV_TestGUI/OpenCV_TestGUI.pro

@@ -0,0 +1,51 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-12-18T22:17:29
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = OpenCV_TestGUI
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+CONFIG += c++11
+
+SOURCES += \
+        main.cpp \
+        mainwindow.cpp
+
+HEADERS += \
+        mainwindow.h
+
+FORMS += \
+        mainwindow.ui
+
+
+INCLUDEPATH += H:\Downloads\opencv\build\include
+
+LIBS += C:\opencv-build\bin\libopencv_core412.dll
+LIBS += C:\opencv-build\bin\libopencv_highgui412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgcodecs412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgproc412.dll
+LIBS += C:\opencv-build\bin\libopencv_features2d412.dll
+LIBS += C:\opencv-build\bin\libopencv_calib3d412.dll
+
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

OpenCV_TestGUI/OpenCV_TestGUI.pro.user

@@ -0,0 +1,322 @@
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OpenCV_TestGUI/main.cpp

@@ -0,0 +1,11 @@
+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    //w.show();
+
+    return a.exec();
+}

OpenCV_TestGUI/mainwindow.cpp

@@ -0,0 +1,49 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include <opencv2/core.hpp>
+#include <opencv2/imgcodecs.hpp>
+#include <opencv2/highgui.hpp>
+
+#include <QRandomGenerator>
+#include <QString>
+
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    QString BayerPics = "H://_Documents/build-OpenCV_TestGUI-Desktop_Qt_5_11_2_MinGW_32bit-Debug/debug/Bayer.tif";
+    QString EffectivePics = "Effective_Bayer.tif";
+
+    cv::Mat bayPic(8816, 11976, CV_16UC1);
+    bayPic = cv::imread(BayerPics.toStdString(), 1);
+
+
+
+    // read an image
+    cv::Mat image(800, 600, CV_16UC1);
+
+    for (int x = 1; x < 800-1; x++)
+    {
+        for (int y = 1; y < 600-1; y++)
+        {
+            uint16_t randNum = QRandomGenerator::global()->bounded(65535);
+            image.at<uint16_t>(x, y) = randNum;
+        }
+    }
+
+
+    //cv::Mat image = cv::imread("P://IMG-20180620-WA0001.jpg", 1);
+    // create image window named "My Image"
+    cv::namedWindow("My Image");
+    // show the image on window
+    cv::imshow("My Image", bayPic);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}

OpenCV_TestGUI/mainwindow.h

@@ -0,0 +1,22 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+};
+
+#endif // MAINWINDOW_H

OpenCV_TestGUI/mainwindow.ui

@@ -0,0 +1,24 @@
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow" >
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>MainWindow</string>
+  </property>
+  <widget class="QMenuBar" name="menuBar" />
+  <widget class="QToolBar" name="mainToolBar" />
+  <widget class="QWidget" name="centralWidget" />
+  <widget class="QStatusBar" name="statusBar" />
+ </widget>
+ <layoutDefault spacing="6" margin="11" />
+ <pixmapfunction></pixmapfunction>
+ <resources/>
+ <connections/>
+</ui>

OpenCV_WebCamGUI/README.md

@@ -0,0 +1 @@
+# OpenCV-CPP-show-webcam-stream-on-Qt-GUI

OpenCV_WebCamGUI/functions.cpp

@@ -0,0 +1,165 @@
+#include "functions.h"
+
+
+functions::functions(QWidget *parent) : QMainWindow(parent)
+{
+
+
+}
+
+
+int functions::init_detect_visages(void) {
+        //-- 1. Load the cascades
+    if(!face_cascade.load(face_cascade_name)) {
+        qDebug() << "couc";
+    }
+
+    if(!eyes_cascade.load(eyes_cascade_name)) {
+        qDebug() << "couc";
+    }
+}
+
+
+
+cv::Mat functions::detect_visages(cv::Mat frame, Color_type type) {
+    //cv::cvtColor(frame, frame, cv::COLOR_RGB2BGR);
+    //cv::imwrite("out1.jpg", frame);
+
+    qDebug() << type;
+    cv::cvtColor( frame, frame_gray, cv::COLOR_BGR2GRAY );
+    cv::cvtColor(frame_gray, frame_fake_gray, cv::COLOR_GRAY2RGB);
+    equalizeHist( frame_gray, frame_gray );
+
+    //-- Detect faces
+    face_cascade.detectMultiScale( frame_gray,
+                                   faces,
+                                   1.1,
+                                   2,
+                                   0|cv::CASCADE_SCALE_IMAGE/* HAAR_SCALE_IMAGE*/,
+                                   cv::Size(30, 30) );
+
+    for( size_t i = 0; i < faces.size(); i++ ) {
+      cv::Point center( faces[i].x + faces[i].width*0.5, faces[i].y + faces[i].height*0.5 );
+
+      if (type == GREY8)
+          ellipse( frame_fake_gray, center, cv::Size( faces[i].width*0.5, faces[i].height*0.5), 0, 0, 360, cv::Scalar( 255, 0, 255 ), 4, 8, 0 );
+      if (type == RGB8 || type == BRG8 || type == BGR8)
+          ellipse( frame, center, cv::Size( faces[i].width*0.5, faces[i].height*0.5), 0, 0, 360, cv::Scalar( 255, 0, 255 ), 4, 8, 0 );
+
+      cv::Mat faceROI = frame_gray( faces[i] );
+
+      //-- In each face, detect eyes
+      eyes_cascade.detectMultiScale( faceROI,
+                                     eyes,
+                                     1.1,
+                                     2,
+                                     0 |cv::CASCADE_SCALE_IMAGE/* HAAR_SCALE_IMAGE*/,
+                                     cv::Size(30, 30) );
+
+      for( size_t j = 0; j < eyes.size(); j++ ) {
+         cv::Point center( faces[i].x + eyes[j].x + eyes[j].width*0.5, faces[i].y + eyes[j].y + eyes[j].height*0.5 );
+         int radius = cvRound( (eyes[j].width + eyes[j].height)*0.25 );
+         if (type == GREY8)
+             circle( frame_fake_gray, center, radius, cv::Scalar( 255, 0, 0 ), 4, 8, 0 );
+         if (type == RGB8 || type == BRG8 || type == BGR8)
+             circle( frame, center, radius, cv::Scalar( 255, 0, 0 ), 4, 8, 0 );
+       }
+    }
+
+   if (type == GREY8)
+        return frame_fake_gray;
+   if (type == RGB8 || type == BRG8 || type == BGR8)
+       return frame;
+
+}
+
+
+int functions::init_dnn(void) {
+
+
+
+
+}
+
+cv::Mat functions::dnn_test(cv::Mat frame) {
+
+
+    cv::String weights = "./ssd_mobilenet_v1_coco_11_06_2017/frozen_inference_graph.pb";
+    cv::String prototxt = "./ssd_mobilenet_v1_coco_11_06_2017/ssd_mobilenet_v1_coco.pbtxt";
+    cv::dnn::Net net = cv::dnn::readNetFromTensorflow(weights, prototxt);
+
+
+
+    const size_t inWidth = 300;
+    const size_t inHeight = 300;
+    const float WHRatio = inWidth / (float)inHeight;
+    const char* classNames[]= {"background", "person", "bicycle", "car", "motorcycle", "airplane", "bus", "train", "truck", "boat", "traffic light",
+    "fire hydrant", "background", "stop sign", "parking meter", "bench", "bird", "cat", "dog", "horse", "sheep", "cow", "elephant", "bear", "zebra", "giraffe", "background", "backpack",
+    "umbrella", "background", "background", "handbag", "tie", "suitcase", "frisbee","skis", "snowboard", "sports ball", "kite", "baseball bat","baseball glove", "skateboard", "surfboard", "tennis racket",
+    "bottle", "background", "wine glass", "cup", "fork", "knife", "spoon","bowl", "banana",  "apple", "sandwich", "orange","broccoli", "carrot", "hot dog",  "pizza", "donut",
+    "cake", "chair", "couch", "potted plant", "bed", "background", "dining table", "background", "background", "toilet", "background","tv", "laptop", "mouse", "remote", "keyboard",
+    "cell phone", "microwave", "oven", "toaster", "sink", "refrigerator", "background","book", "clock", "vase", "scissors","teddy bear", "hair drier", "toothbrush"};
+
+    cv::Size frame_size = frame.size();
+    cv::Size cropSize;
+    if (frame_size.width / (float)frame_size.height > WHRatio) {
+        cropSize = cv::Size(static_cast<int>(frame_size.height * WHRatio),
+                    frame_size.height);
+    }
+    else {
+    cropSize = cv::Size(frame_size.width,
+                    static_cast<int>(frame_size.width / WHRatio));
+    }
+
+    cv::Rect crop(  cv::Point((frame_size.width - cropSize.width) / 2,
+                    (frame_size.height - cropSize.height) / 2),
+                    cropSize);
+
+
+    cv::Mat blob = cv::dnn::blobFromImage(frame, 1. / 255, cv::Size(300, 300));
+    //cout << "blob size: " << blob.size << endl;
+
+    net.setInput(blob);
+    cv::Mat output = net.forward();
+//cout << "output size: " << output.size << endl;
+
+    cv::Mat detectionMat(output.size[2], output.size[3], CV_32F, output.ptr<float>());
+
+    frame = frame(crop);
+    float confidenceThreshold = 0.50;
+    for (int i = 0; i < detectionMat.rows; i++)
+    {
+        float confidence = detectionMat.at<float>(i, 2);
+
+        if (confidence > confidenceThreshold) {
+            size_t objectClass = (size_t)(detectionMat.at<float>(i, 1));
+
+            int xLeftBottom = static_cast<int>(detectionMat.at<float>(i, 3) * frame.cols);
+            int yLeftBottom = static_cast<int>(detectionMat.at<float>(i, 4) * frame.rows);
+            int xRightTop = static_cast<int>(detectionMat.at<float>(i, 5) * frame.cols);
+            int yRightTop = static_cast<int>(detectionMat.at<float>(i, 6) * frame.rows);
+
+            std::ostringstream ss;
+            ss << confidence;
+            cv::String conf(ss.str());
+
+            cv::Rect object((int)xLeftBottom, (int)yLeftBottom,
+                        (int)(xRightTop - xLeftBottom),
+                        (int)(yRightTop - yLeftBottom));
+
+            rectangle(frame, object, cv::Scalar(0, 255, 0), 2);
+            //cout << "objectClass:" << objectClass << endl;
+            cv::String label = cv::String(classNames[objectClass]) + ": " + conf;
+            //cout << "label"<<label << endl;
+            int baseLine = 0;
+            cv::Size labelSize = getTextSize(label, cv::FONT_HERSHEY_SIMPLEX, 0.5, 1, &baseLine);
+            rectangle(frame, cv::Rect(cv::Point(xLeftBottom, yLeftBottom - labelSize.height),
+                                  cv::Size(labelSize.width, labelSize.height + baseLine)),
+                      cv::Scalar(0, 255, 0), cv::FILLED);
+            putText(frame, label, cv::Point(xLeftBottom, yLeftBottom),
+                    cv::FONT_HERSHEY_SIMPLEX, 0.5, cv::Scalar(0, 0, 0));
+    }
+
+        return frame;
+    }
+}

OpenCV_WebCamGUI/functions.h

@@ -0,0 +1,58 @@
+#ifndef FUNCTIONS_H
+#define FUNCTIONS_H
+
+#include <QMainWindow>
+#include <QObject>
+#include <QWidget>
+#include <QImage>
+#include <QDebug>
+
+#include <iostream>
+
+
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+#include <opencv2/objdetect/objdetect.hpp>
+#include <opencv2/videoio/videoio.hpp>
+#include <opencv2/dnn/dnn.hpp>
+
+typedef enum
+{
+    GREY8,
+    RGB8,
+    BRG8,
+    BGR8,
+}Color_type;
+
+
+class functions : public QMainWindow
+{
+    Q_OBJECT
+public:
+    explicit functions(QWidget *parent = nullptr);
+
+    int init_detect_visages(void);
+    cv::Mat detect_visages(cv::Mat frame, Color_type type);
+
+    int init_dnn(void);
+    cv::Mat dnn_test(cv::Mat frame);
+
+
+    cv::Mat frame_fake_gray;
+    cv::Mat frame_gray;
+    cv::Mat frame;
+    std::vector<cv::Rect> faces;
+    std::vector<cv::Rect> eyes;
+
+
+    /** Global variables */
+    cv::String face_cascade_name = "haarcascade_frontalface_alt.xml";
+    cv::String eyes_cascade_name = "haarcascade_eye_tree_eyeglasses.xml";
+
+    cv::CascadeClassifier face_cascade;
+    cv::CascadeClassifier eyes_cascade;
+
+private:
+};
+
+#endif // FUNCTIONS_H

OpenCV_WebCamGUI/main.cpp

@@ -0,0 +1,11 @@
+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+
+    return a.exec();
+}

OpenCV_WebCamGUI/mainwindow.cpp

@@ -0,0 +1,127 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include <QImage>
+
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    timer = new QTimer(this);
+    on_refreshRateSlider_valueChanged(100);
+
+    cv::Mat image = cv::Mat::zeros(frame.size(),CV_8UC3);
+    qt_image = QImage((const unsigned char*) (image.data), image.cols, image.rows, QImage::Format_RGB888 );
+
+    myFunctions.init_detect_visages();
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::on_pushButton_open_webcam_clicked()
+{
+
+    cap.open(0);
+    if(!cap.isOpened())  // Check if we succeeded
+    {
+        statusBar()->showMessage("Error !");
+    }
+    else
+    {
+        connect(timer, SIGNAL(timeout()), this, SLOT(update_window()));
+        timer->start(ui->refreshRateSlider->value());
+        statusBar()->showMessage("Camera is open !");
+    }
+}
+
+void MainWindow::on_pushButton_close_webcam_clicked()
+{
+    disconnect(timer, SIGNAL(timeout()), this, SLOT(update_window()));
+    cap.release();
+    cv::Mat image = cv::Mat::zeros(frame.size(),CV_8UC3);
+    qt_image = QImage((const unsigned char*) (image.data), image.cols, image.rows, QImage::Format_RGB888);
+    ui->label->setPixmap(QPixmap::fromImage(qt_image));
+    ui->label->resize(ui->label->pixmap()->size());
+    cout << "camera is closed" << endl;
+}
+
+void MainWindow::update_window()
+{
+    /*
+     * Todo !
+     * Fonction détection du mode
+     */
+
+    /* Capture de l'image */
+    cap >> frame;
+
+    /* Infos Live */
+    ui->resText->setText(QString::number(frame.size().width) + "x" + QString::number(frame.size().height));
+
+    /* Check des options
+     * Mode Couleur
+     */
+    if ( ui->colorchooseComboBox->currentIndex() ==0 ) {
+
+            if (ui->objectDetectorComboBox->currentIndex() == 0) {
+                qt_image = QImage((const unsigned char*) (frame.data), frame.cols, frame.rows, QImage::Format_RGB888);
+
+            }
+
+            if (ui->objectDetectorComboBox->currentIndex() == 1) {
+                qt_image = QImage((unsigned char*) (myFunctions.detect_visages(frame, RGB8).data), frame.cols, frame.rows, QImage::Format_RGB888);
+
+            }
+            if (ui->objectDetectorComboBox->currentIndex() == 2) {
+                qt_image = QImage((unsigned char*) (myFunctions.dnn_test(frame).data), frame.cols, frame.rows, QImage::Format_RGB888);
+            }
+
+
+        }
+
+    /*
+     * Mode BW
+     */
+    if ( ui->colorchooseComboBox->currentIndex() == 1 ) {
+        if (ui->objectDetectorComboBox->currentIndex() == 0) {
+            cv::cvtColor(frame, framebw, cv::COLOR_BGR2GRAY);
+            qDebug() << "cvtColor OK";
+            qt_image = QImage((const unsigned char*) (framebw.data), framebw.cols, framebw.rows, QImage::Format_Grayscale8);
+            qDebug() << "qt_image updated";
+        }
+
+        if (ui->objectDetectorComboBox->currentIndex() == 1) {
+
+            qt_image = QImage((const unsigned char*) (myFunctions.detect_visages(frame, GREY8).data), framebw.cols, framebw.rows, QImage::Format_RGB888) ;
+
+
+        }
+
+
+
+    }
+
+    ui->label->setPixmap(QPixmap::fromImage(qt_image));
+    ui->label->resize(ui->label->pixmap()->size());
+
+
+
+    //-- Show what you got
+    //imshow( window_name, frame );
+
+}
+
+
+
+void MainWindow::on_refreshRateSlider_valueChanged(int value)
+{
+    ui->refreshRateText->setText(QString::number(value) + " ms"); 
+    timer->start(value);
+
+}

OpenCV_WebCamGUI/mainwindow.h

@@ -0,0 +1,55 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QTimer>
+#include <QString>
+#include <QDebug>
+
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+#include <opencv2/objdetect/objdetect.hpp>
+#include <opencv2/videoio/videoio.hpp>
+
+#include <functions.h>
+
+#include <iostream>
+using namespace std;
+
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+    int refreshRate;
+    functions myFunctions;
+
+    cv::Mat frame;
+    cv::Mat framebw;
+    QImage qt_image;
+
+
+private slots:
+    void on_pushButton_open_webcam_clicked();
+    void on_pushButton_close_webcam_clicked();
+    void update_window();
+
+    void on_refreshRateSlider_valueChanged(int value);
+
+private:
+    Ui::MainWindow *ui;
+
+    QTimer *timer;
+    cv::VideoCapture cap;
+
+};
+
+#endif // MAINWINDOW_H

OpenCV_WebCamGUI/mainwindow.ui

@@ -0,0 +1,290 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1246</width>
+    <height>576</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralWidget">
+   <widget class="QPushButton" name="pushButton_open_webcam">
+    <property name="geometry">
+     <rect>
+      <x>50</x>
+      <y>20</y>
+      <width>171</width>
+      <height>81</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Open Webcam</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="pushButton_close_webcam">
+    <property name="geometry">
+     <rect>
+      <x>50</x>
+      <y>110</y>
+      <width>171</width>
+      <height>81</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Close Webcam</string>
+    </property>
+   </widget>
+   <widget class="QGroupBox" name="groupBox">
+    <property name="geometry">
+     <rect>
+      <x>290</x>
+      <y>10</y>
+      <width>661</width>
+      <height>511</height>
+     </rect>
+    </property>
+    <property name="title">
+     <string>Vidéo</string>
+    </property>
+    <widget class="QLabel" name="label">
+     <property name="geometry">
+      <rect>
+       <x>10</x>
+       <y>20</y>
+       <width>640</width>
+       <height>480</height>
+      </rect>
+     </property>
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </widget>
+   <widget class="QGroupBox" name="groupBox_2">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>270</y>
+      <width>251</width>
+      <height>91</height>
+     </rect>
+    </property>
+    <property name="title">
+     <string>Live Information</string>
+    </property>
+    <widget class="QLabel" name="label_2">
+     <property name="geometry">
+      <rect>
+       <x>20</x>
+       <y>30</y>
+       <width>71</width>
+       <height>16</height>
+      </rect>
+     </property>
+     <property name="text">
+      <string>Résolution</string>
+     </property>
+    </widget>
+    <widget class="QLabel" name="resText">
+     <property name="geometry">
+      <rect>
+       <x>100</x>
+       <y>30</y>
+       <width>111</width>
+       <height>16</height>
+      </rect>
+     </property>
+     <property name="text">
+      <string>TextLabel</string>
+     </property>
+    </widget>
+   </widget>
+   <widget class="QLabel" name="label_3">
+    <property name="geometry">
+     <rect>
+      <x>22</x>
+      <y>202</y>
+      <width>38</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Refresh</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="refreshRateText">
+    <property name="geometry">
+     <rect>
+      <x>66</x>
+      <y>202</y>
+      <width>47</width>
+      <height>16</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>TextLabel</string>
+    </property>
+   </widget>
+   <widget class="QSlider" name="refreshRateSlider">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>230</y>
+      <width>251</width>
+      <height>22</height>
+     </rect>
+    </property>
+    <property name="minimum">
+     <number>1</number>
+    </property>
+    <property name="maximum">
+     <number>1000</number>
+    </property>
+    <property name="pageStep">
+     <number>10</number>
+    </property>
+    <property name="value">
+     <number>100</number>
+    </property>
+    <property name="orientation">
+     <enum>Qt::Horizontal</enum>
+    </property>
+   </widget>
+   <widget class="QGroupBox" name="groupBox_3">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>370</y>
+      <width>251</width>
+      <height>151</height>
+     </rect>
+    </property>
+    <property name="title">
+     <string>Tricks</string>
+    </property>
+    <widget class="QComboBox" name="objectDetectorComboBox">
+     <property name="geometry">
+      <rect>
+       <x>10</x>
+       <y>90</y>
+       <width>231</width>
+       <height>22</height>
+      </rect>
+     </property>
+     <item>
+      <property name="text">
+       <string>Flux RAW</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Visages</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Objets</string>
+      </property>
+     </item>
+    </widget>
+    <widget class="QComboBox" name="colorchooseComboBox">
+     <property name="geometry">
+      <rect>
+       <x>10</x>
+       <y>40</y>
+       <width>231</width>
+       <height>22</height>
+      </rect>
+     </property>
+     <item>
+      <property name="text">
+       <string>Color</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>B/W</string>
+      </property>
+     </item>
+    </widget>
+    <widget class="QLabel" name="label_4">
+     <property name="geometry">
+      <rect>
+       <x>10</x>
+       <y>20</y>
+       <width>81</width>
+       <height>20</height>
+      </rect>
+     </property>
+     <property name="text">
+      <string>COLOR_MODES</string>
+     </property>
+    </widget>
+    <widget class="QLabel" name="label_5">
+     <property name="geometry">
+      <rect>
+       <x>10</x>
+       <y>70</y>
+       <width>111</width>
+       <height>20</height>
+      </rect>
+     </property>
+     <property name="text">
+      <string>OBJECTS_DETECTOR</string>
+     </property>
+    </widget>
+   </widget>
+   <widget class="QGroupBox" name="groupBox_4">
+    <property name="geometry">
+     <rect>
+      <x>960</x>
+      <y>10</y>
+      <width>281</width>
+      <height>511</height>
+     </rect>
+    </property>
+    <property name="title">
+     <string>Debug</string>
+    </property>
+    <widget class="QTextBrowser" name="textBrowser">
+     <property name="geometry">
+      <rect>
+       <x>10</x>
+       <y>20</y>
+       <width>261</width>
+       <height>481</height>
+      </rect>
+     </property>
+    </widget>
+   </widget>
+  </widget>
+  <widget class="QMenuBar" name="menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1246</width>
+     <height>21</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QToolBar" name="mainToolBar">
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+  <widget class="QStatusBar" name="statusBar"/>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources/>
+ <connections/>
+</ui>

OpenCV_WebCamGUI/opencv_cpp_show_webcam_stream_on_Qt_GUI.pro

@@ -0,0 +1,48 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2017-02-26T14:13:24
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = opencv_cpp_show_webcam_stream_on_Qt_GUI
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which as been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+
+SOURCES += main.cpp\
+        mainwindow.cpp \
+    functions.cpp \
+    test.cpp
+
+HEADERS  += mainwindow.h \
+    functions.h \
+    test.h
+
+FORMS    += mainwindow.ui
+
+INCLUDEPATH += H:\_Downloads\opencv\build\include
+
+LIBS += C:\opencv-build\bin\libopencv_core412.dll
+LIBS += C:\opencv-build\bin\libopencv_highgui412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgcodecs412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgproc412.dll
+LIBS += C:\opencv-build\bin\libopencv_features2d412.dll
+LIBS += C:\opencv-build\bin\libopencv_video412.dll
+LIBS += C:\opencv-build\bin\libopencv_videoio412.dll
+LIBS += C:\opencv-build\bin\libopencv_objdetect412.dll
+LIBS += C:\opencv-build\bin\libopencv_dnn412.dll
+

OpenCV_WebCamGUI/opencv_cpp_show_webcam_stream_on_Qt_GUI.pro.user

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OpenCV_WebCamGUI/test.cpp

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+#include "test.h"
+
+test::test(QWidget *parent) : QMainWindow(parent)
+{
+
+}

OpenCV_WebCamGUI/test.h

@@ -0,0 +1,19 @@
+#ifndef TEST_H
+#define TEST_H
+
+#include <QMainWindow>
+#include <QObject>
+#include <QWidget>
+
+class test : public QMainWindow
+{
+    Q_OBJECT
+public:
+    explicit test(QWidget *parent = nullptr);
+
+signals:
+
+public slots:
+};
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OpenCV_Webcam/OpenCV_Webcam.pro

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+#-------------------------------------------------
+#
+# Project created by QtCreator 2020-04-25T19:22:31
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = OpenCV_Webcam
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
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+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
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+
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+        main.cpp \
+        mainwindow.cpp
+
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+        mainwindow.h
+
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+        mainwindow.ui
+
+
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+
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+LIBS += C:\opencv-build\bin\libopencv_highgui412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgcodecs412.dll
+LIBS += C:\opencv-build\bin\libopencv_imgproc412.dll
+LIBS += C:\opencv-build\bin\libopencv_features2d412.dll
+LIBS += C:\opencv-build\bin\libopencv_video412.dll
+LIBS += C:\opencv-build\bin\libopencv_videoio412.dll
+
+
+
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+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

OpenCV_Webcam/OpenCV_Webcam.pro.user

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OpenCV_Webcam/main.cpp

@@ -0,0 +1,62 @@
+#include "mainwindow.h"
+#include <QApplication>
+
+#include <opencv2/core/core.hpp>
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/videoio/videoio.hpp>
+
+#include <QDebug>
+
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    //jMainWindow w;
+    //w.show();
+
+    cv::Mat frame;
+    //--- INITIALIZE VIDEOCAPTURE
+    cv::VideoCapture cap;
+    // open the default camera using default API
+    // cap.open(0);
+    // OR advance usage: select any API backend
+    int deviceID = 0;             // 0 = open default camera
+    int apiID = cv::CAP_ANY;      // 0 = autodetect default API
+    // open selected camera using selected API
+    cap.open(deviceID, apiID);
+    // check if we succeeded
+    if (!cap.isOpened()) {
+        qDebug() << "ERROR! Unable to open camera";
+        return a.exec();
+    }
+
+    qDebug() << "Camera Open !";
+
+    //--- GRAB AND WRITE LOOP
+    qDebug() << "Start grabbing";
+    qDebug() << "Press any key to terminate";
+
+    //for (;;)
+    //{
+        // wait for a new frame from camera and store it into 'frame'
+        cap.read(frame);
+        // check if we succeeded
+        if (frame.empty()) {
+            qDebug() << "ERROR! blank frame grabbed\n";
+            //break;
+        }
+        else {
+            // show live and wait for a key with timeout long enough to show images
+            imshow("Live", frame);
+            //  if (cv::waitKey(5) > = 0)
+            //b     break;
+            qDebug() << "FLUX !!\n";
+
+        }
+
+
+ //   }
+    // the camera will be deinitialized automatically in VideoCapture destructor
+
+    return a.exec();
+}

OpenCV_Webcam/mainwindow.cpp

@@ -0,0 +1,16 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}

OpenCV_Webcam/mainwindow.h

@@ -0,0 +1,22 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+};
+
+#endif // MAINWINDOW_H

OpenCV_Webcam/mainwindow.ui

@@ -0,0 +1,24 @@
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow" >
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>MainWindow</string>
+  </property>
+  <widget class="QMenuBar" name="menuBar" />
+  <widget class="QToolBar" name="mainToolBar" />
+  <widget class="QWidget" name="centralWidget" />
+  <widget class="QStatusBar" name="statusBar" />
+ </widget>
+ <layoutDefault spacing="6" margin="11" />
+ <pixmapfunction></pixmapfunction>
+ <resources/>
+ <connections/>
+</ui>