init

.gitignore

@@ -0,0 +1,74 @@
+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+
+CMakeLists.txt.user

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.5)
+
+project(cap0 VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
+find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
+
+
+set(PROJECT_SOURCES
+        main.cpp
+        mainwindow.cpp
+        mainwindow.h
+        mainwindow.ui
+)
+
+if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
+    qt_add_executable(cap0
+        MANUAL_FINALIZATION
+        ${PROJECT_SOURCES}
+    )
+# Define target properties for Android with Qt 6 as:
+#    set_property(TARGET cap0 APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
+#                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
+# For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
+else()
+    if(ANDROID)
+        add_library(cap0 SHARED
+            ${PROJECT_SOURCES}
+        )
+# Define properties for Android with Qt 5 after find_package() calls as:
+#    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
+    else()
+        add_executable(cap0
+            ${PROJECT_SOURCES}
+        )
+    endif()
+endif()
+
+target_link_libraries(cap0 PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
+set_target_properties(cap0 PROPERTIES
+    MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+if(QT_VERSION_MAJOR EQUAL 6)
+    qt_finalize_executable(cap0)
+endif()
+
+
+include_directories("C:/msys64/mingw64/include/opencv4")
+
+file(GLOB CVLIBS "C:/msys64/mingw64/lib/libopencv*.a")
+
+target_link_libraries(cap0 PRIVATE ${CVLIBS})

main.cpp

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

mainwindow.cpp

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+#include "mainwindow.h"
+#include "./ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+    cap = new VideoCapture(0);
+    onCap = false;
+    vt = new QTimer(this);
+//    vt->start(20);
+    QObject::connect(vt,SIGNAL(timeout()),this,SLOT(showImage()));
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+
+void MainWindow::on_pushButton_clicked()
+{
+    if(onCap){
+        vt->stop();
+        onCap = false;
+    }
+    else{
+        vt->start(20);
+        onCap = true;
+    }
+}
+
+void MainWindow::showImage(){
+    if(NULL!=cap){
+        if(cap->read(image)){
+            ui->label->setPixmap(QPixmap::fromImage(QImage(image.data,image.cols,image.rows,QImage::Format_RGB888)));
+        }
+    }
+}
+
+void MainWindow::on_pushButton_2_clicked()
+{
+    QFile f("img.bin");
+    f.open(QIODevice::ReadWrite);
+    QDataStream streamout(&f);
+    streamout.writeBytes((char*)image.data,image.rows*image.cols*3);
+    f.close();
+}
+

mainwindow.h

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+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <opencv2/opencv.hpp>
+#include <boost/chrono/chrono.hpp>
+#include <QPainter>
+#include <QTimer>
+#include <QObject>
+#include <QImage>
+#include <QPixmap>
+#include <QFile>
+#include <QDataStream>
+using namespace cv;
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class MainWindow; }
+QT_END_NAMESPACE
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private slots:
+    void on_pushButton_clicked();
+    void showImage();
+
+    void on_pushButton_2_clicked();
+
+private:
+    Ui::MainWindow *ui;
+    VideoCapture* cap;
+    bool onCap;
+    QTimer* vt;
+    Mat image;
+
+
+};
+#endif // MAINWINDOW_H

mainwindow.ui

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+<?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>993</width>
+    <height>496</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <widget class="QPushButton" name="pushButton">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>30</y>
+      <width>80</width>
+      <height>21</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>open</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="label">
+    <property name="geometry">
+     <rect>
+      <x>140</x>
+      <y>30</y>
+      <width>571</width>
+      <height>401</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string/>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="pushButton_2">
+    <property name="geometry">
+     <rect>
+      <x>20</x>
+      <y>70</y>
+      <width>80</width>
+      <height>21</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>save</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>993</width>
+     <height>19</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>