【PYQT项目】摄像头拍照保存

文章目录

1.实现目标
2.Qt designer绘制界面
3.将.ui文件转为.py文件
4.ui_MainWindow.py文件
5.myMainWindow.py文件（调用ui_MainWindow.py）
6.主程序入口appMain.py（非必须）
7.效果

1.实现目标

使用OpenCV-Python调用笔记本电脑摄像头，使用QT绘制图形界面，当按下拍照时，照片显示在屏幕，按下保存时，该照片可以保存在指定路径。

2.Qt designer绘制界面

3.将.ui文件转为.py文件

pyuic5 -o ui_MainWindow.py MainWindow.ui

4.ui_MainWindow.py文件

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtMultimediaWidgets import QCameraViewfinderclass Ui_MainWindow(object):def setupUi(self, MainWindow):MainWindow.setObjectName("MainWindow")MainWindow.resize(963, 603)self.centralWidget = QtWidgets.QWidget(MainWindow)self.centralWidget.setObjectName("centralWidget")self.verticalLayout_3 = QtWidgets.QVBoxLayout(self.centralWidget)self.verticalLayout_3.setContentsMargins(3, 3, 3, 3)self.verticalLayout_3.setSpacing(3)self.verticalLayout_3.setObjectName("verticalLayout_3")self.groupBox_2 = QtWidgets.QGroupBox(self.centralWidget)self.groupBox_2.setMaximumSize(QtCore.QSize(16777215, 60))self.groupBox_2.setTitle("")self.groupBox_2.setObjectName("groupBox_2")self.gridLayout = QtWidgets.QGridLayout(self.groupBox_2)self.gridLayout.setContentsMargins(11, 5, 11, 5)self.gridLayout.setHorizontalSpacing(12)self.gridLayout.setVerticalSpacing(6)self.gridLayout.setObjectName("gridLayout")self.label = QtWidgets.QLabel(self.groupBox_2)self.label.setMaximumSize(QtCore.QSize(80, 16777215))self.label.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)self.label.setObjectName("label")self.gridLayout.addWidget(self.label, 0, 0, 1, 1)self.comboCamera = QtWidgets.QComboBox(self.groupBox_2)self.comboCamera.setMinimumSize(QtCore.QSize(150, 20))self.comboCamera.setObjectName("comboCamera")self.gridLayout.addWidget(self.comboCamera, 0, 1, 1, 1)self.verticalLayout_3.addWidget(self.groupBox_2)self.splitter = QtWidgets.QSplitter(self.centralWidget)sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)sizePolicy.setHorizontalStretch(0)sizePolicy.setVerticalStretch(0)sizePolicy.setHeightForWidth(self.splitter.sizePolicy().hasHeightForWidth())self.splitter.setSizePolicy(sizePolicy)self.splitter.setOrientation(QtCore.Qt.Horizontal)self.splitter.setHandleWidth(5)self.splitter.setObjectName("splitter")self.splitter.setStretchFactor(1, 1)self.groupBox = QtWidgets.QGroupBox(self.splitter)self.groupBox.setMinimumSize(QtCore.QSize(476, 0))self.groupBox.setMaximumSize(QtCore.QSize(16777215, 16777215))self.groupBox.setObjectName("groupBox")self.gridLayout_2 = QtWidgets.QGridLayout(self.groupBox)self.gridLayout_2.setContentsMargins(11, 11, 11, 11)self.gridLayout_2.setSpacing(6)self.gridLayout_2.setObjectName("gridLayout_2")self.viewFinder = QCameraViewfinder(self.groupBox)self.viewFinder.setMinimumSize(QtCore.QSize(0, 0))self.viewFinder.setObjectName("viewFinder")self.gridLayout_2.addWidget(self.viewFinder, 0, 0, 1, 1)self.groupBox_3 = QtWidgets.QGroupBox(self.splitter)self.groupBox_3.setMinimumSize(QtCore.QSize(476, 0))self.groupBox_3.setMaximumSize(QtCore.QSize(16777215, 16777215))self.groupBox_3.setObjectName("groupBox_3")self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.groupBox_3)self.verticalLayout_2.setContentsMargins(11, 11, 11, 11)self.verticalLayout_2.setSpacing(6)self.verticalLayout_2.setObjectName("verticalLayout_2")self.LabImage = QtWidgets.QLabel(self.groupBox_3)self.LabImage.setMinimumSize(QtCore.QSize(0, 0))self.LabImage.setAlignment(QtCore.Qt.AlignCenter)self.LabImage.setObjectName("LabImage")self.verticalLayout_2.addWidget(self.LabImage)self.verticalLayout_3.addWidget(self.splitter)MainWindow.setCentralWidget(self.centralWidget)self.menuBar = QtWidgets.QMenuBar(MainWindow)self.menuBar.setGeometry(QtCore.QRect(0, 0, 963, 23))self.menuBar.setObjectName("menuBar")MainWindow.setMenuBar(self.menuBar)self.mainToolBar = QtWidgets.QToolBar(MainWindow)self.mainToolBar.setToolButtonStyle(QtCore.Qt.ToolButtonTextBesideIcon)self.mainToolBar.setObjectName("mainToolBar")MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.mainToolBar)self.statusBar = QtWidgets.QStatusBar(MainWindow)self.statusBar.setObjectName("statusBar")MainWindow.setStatusBar(self.statusBar)self.actStartCamera = QtWidgets.QAction(MainWindow)self.actStartCamera.setEnabled(False)self.actStartCamera.setObjectName("actStartCamera")self.actStopCamera = QtWidgets.QAction(MainWindow)self.actStopCamera.setEnabled(False)self.actStopCamera.setObjectName("actStopCamera")self.actCapture = QtWidgets.QAction(MainWindow)self.actCapture.setEnabled(False)self.actCapture.setObjectName("actCapture")self.actQuit = QtWidgets.QAction(MainWindow)self.actQuit.setObjectName("actQuit")self.mainToolBar.addAction(self.actStartCamera)self.mainToolBar.addSeparator()self.mainToolBar.addAction(self.actStopCamera)self.mainToolBar.addSeparator()self.mainToolBar.addAction(self.actCapture)self.mainToolBar.addSeparator()self.mainToolBar.addAction(self.actQuit)self.retranslateUi(MainWindow)self.actQuit.triggered.connect(MainWindow.close)QtCore.QMetaObject.connectSlotsByName(MainWindow)def retranslateUi(self, MainWindow):_translate = QtCore.QCoreApplication.translateMainWindow.setWindowTitle(_translate("MainWindow", "camera"))self.label.setText(_translate("MainWindow", "摄像头设备"))self.groupBox.setTitle(_translate("MainWindow", "摄像头预览"))self.groupBox_3.setTitle(_translate("MainWindow", "抓取的图片"))self.LabImage.setText(_translate("MainWindow", "抓取的图片"))self.actStartCamera.setText(_translate("MainWindow", "开启摄像头"))self.actStartCamera.setToolTip(_translate("MainWindow", "开启摄像头"))self.actStopCamera.setText(_translate("MainWindow", "关闭摄像头"))self.actStopCamera.setToolTip(_translate("MainWindow", "关闭摄像头"))self.actCapture.setText(_translate("MainWindow", "拍照"))self.actCapture.setToolTip(_translate("MainWindow", "拍照"))self.actQuit.setText(_translate("MainWindow", "退出"))self.actQuit.setToolTip(_translate("MainWindow", "退出"))
#from QCameraViewfinder import QCameraViewfinder
import res_rc

5.myMainWindow.py文件（调用ui_MainWindow.py）

import sysimport cv2
from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel, QFileDialogfrom PyQt5.QtCore import pyqtSlot, Qtfrom PyQt5.QtGui import QImage, QPixmapfrom PyQt5.QtMultimedia import (QCameraInfo, QCameraImageCapture,QImageEncoderSettings, QMultimedia, QVideoFrame, QSound, QCamera)from ui_MainWindow import Ui_MainWindowclass QmyMainWindow(QMainWindow):def __init__(self, parent=None):super().__init__(parent)self.ui = Ui_MainWindow()  # 创建UI对象self.ui.setupUi(self)  # 构造UI界面self.__LabCameraState = QLabel("摄像头state:")self.__LabCameraState.setMinimumWidth(150)self.ui.statusBar.addWidget(self.__LabCameraState)self.__LabImageID = QLabel("图片文件ID:")self.__LabImageID.setMinimumWidth(100)self.ui.statusBar.addWidget(self.__LabImageID)self.__LabImageFile = QLabel("")  # 保存的图片文件名self.ui.statusBar.addPermanentWidget(self.__LabImageFile)self.camera = None  # QCamera对象cameras = QCameraInfo.availableCameras()  # list[QCameraInfo]print(str(len(cameras)) + " camera find!")if len(cameras) > 0:self.__iniCamera()  # 初始化摄像头self.__iniImageCapture()  # 初始化静态画图self.camera.start()def __iniCamera(self):  # 创建 QCamera对象camInfo = QCameraInfo.defaultCamera()  # 获取缺省摄像头#camInfo = QCameraInfo.availableCameras()  # 获取所有摄像头self.ui.comboCamera.addItem(camInfo.description())  # 摄像头描述#self.ui.comboCamera.addItem(camInfo.)self.ui.comboCamera.setCurrentIndex(0)self.camera = QCamera(camInfo)  # 创建摄像头对象self.camera.setViewfinder(self.ui.viewFinder)  # 设置取景框预览self.camera.setCaptureMode(QCamera.CaptureStillImage)  # 抓取静态图片模式self.camera.stateChanged.connect(self.do_cameraStateChanged)def __iniImageCapture(self):  ##创建 QCameraImageCapture对象self.capturer = QCameraImageCapture(self.camera)settings = QImageEncoderSettings()  # 拍照设置settings.setCodec("image/jpeg")  # 设置抓图图形编码settings.setResolution(640, 480)  # 分辨率settings.setQuality(QMultimedia.HighQuality)  # 图片质量self.capturer.setEncodingSettings(settings)self.capturer.setBufferFormat(QVideoFrame.Format_Jpeg)  # 缓冲区格式dest = QCameraImageCapture.CaptureToFile  # 保存到文件（必定执行）self.capturer.setCaptureDestination(dest)  # 保存目标self.capturer.readyForCaptureChanged.connect(self.do_imageReady)self.capturer.imageCaptured.connect(self.do_imageCaptured)@pyqtSlot()  # 拍照def on_actCapture_triggered(self):self.camera.searchAndLock()  # 快门半按下时锁定摄像头参数self.capturer.capture()  # 拍照self.camera.unlock()  # 快门按钮释放时解除锁定@pyqtSlot()  # 打开摄像头def on_actStartCamera_triggered(self):self.camera.start()print("打开摄像头")@pyqtSlot()  # 关闭摄像头def on_actStopCamera_triggered(self):self.camera.stop()print("关闭摄像头")def do_cameraStateChanged(self, state):if (state == QCamera.UnloadedState):self.__LabCameraState.setText("摄像头状态: UnloadedState")elif (state == QCamera.LoadedState):self.__LabCameraState.setText("摄像头状态: LoadedState")elif (state == QCamera.ActiveState):self.__LabCameraState.setText("摄像头状态: ActiveState")self.ui.actStartCamera.setEnabled(state != QCamera.ActiveState)self.ui.actStopCamera.setEnabled(state == QCamera.ActiveState)def do_imageReady(self, ready):self.ui.actCapture.setEnabled(ready)print("摄像头可以拍照")def do_imageCaptured(self, imageID, preview):  # 图片被抓取到内存print("捕捉图片")# preview是 QImage# H = self.ui.LabImage.height()# W = self.ui.LabImage.width()H = 1200W = 900scaledImage = preview.scaled(W, H,Qt.KeepAspectRatio, Qt.SmoothTransformation)self.ui.LabImage.setPixmap(QPixmap.fromImage(scaledImage))self.__LabImageID.setText("图片文件ID:%d" % imageID)self.__LabImageFile.setText("图片正在保存")file_path = QFileDialog.getSaveFileName(self, "保存文件", "C:\\Users\\zty\\Desktop","jpeg files (*.jpeg);;all files(*.*)")scaledImage.save(file_path[0], "jpeg")def do_imageSaved(self, imageID, fileName):  # 图片被保存try:self.__LabImageID.setText("图片文件ID:%d" % imageID)self.__LabImageFile.setText("图片保存为： " + fileName)resize_img = cv2.resize(imageID, dsize=(1200, 900))cv2.imwrite(fileName, resize_img)print("保存图片")except:print("未选择保存文件")if __name__ == "__main__":app = QApplication(sys.argv)form = QmyMainWindow()form.show()sys.exit(app.exec_())

6.主程序入口appMain.py（非必须）

import sysfrom PyQt5.QtWidgets import QApplicationfrom myMainWindow import QmyMainWindowapp = QApplication(sys.argv)  # 创建GUI应用程序mainform = QmyMainWindow()  # 创建主窗体mainform.show()  # 显示主窗体sys.exit(app.exec_())

7.效果

【PYQT项目】摄像头拍照保存相关推荐

利用Python+opencv进行视频文件的读取和保存，打开笔记本摄像头拍照保存、图像在窗口显示等操作
版权声明:本文为博主原创文章,转载请附源链接一.视频文件的读取和保存 Opencv中视频的读入是用VideoCapture函数,保存用的是VideoWriter函数.这两个函数支持的视频格式因电脑系 ...
Unity 调用摄像头拍照保存
unity在制作很多大屏互动时候都会用到摄像头拍照或者保存图片,摄像头拍照方式也有多种,仅记录一下. using System.Collections; using System.Collection ...
用Python控制摄像头拍照并发邮件
1 前言为什么会有写这个程序的想法呢? 最初的想法是写一个可以用电脑前置摄像头拍照的程序,在舍友使用你电脑的时候,不经意间获取到一大堆奇葩舍友的表情包. 然后我又突发奇想,要不搞个开机启动吧,这样我 ...
python实现摄像头拍照_使用Python控制摄像头拍照并发邮件
o1 前言为什么会有写这个程序的想法呢? 最初的想法是写一个可以用电脑前置摄像头拍照的程序,在舍友使用你电脑的时候,不经意间获取到一大堆奇葩舍友的表情包. 然后我又突发奇想,要不搞个开机启动吧,这样 ...
Python黑客系列之——控制自己的手机摄像头拍照，并自动发送到邮箱。
前言嗨喽,大家好~今天教大家玩个花的,加入你手机被人偷了或者捡走了,那么如何找到这个人呢?通过定位系统可以,那么还有什么办法是可以让别人给你送回来的方法吗?这就是今天咱们的一个要实现的一个案例! 今 ...
python控制网络摄像头_用Python控制摄像头拍照并发邮件
码农那点事儿关注我们,一起学习进步 00 概述前言工具思路安装及导入包设置参数实现拍照构造邮件内容发送邮件判断网络连接开机自启后记 o1 前言为什么会有写这个程序的想法呢? ...
Python控制自己的手机摄像头拍照，并把照片自动发送到邮箱
前言今天这个案例,就是控制自己的摄像头拍照,并且把拍下来的照片,通过邮件发到自己的邮箱里. 想完成今天的这个案例,只要记住一个重点:你需要一个摄像头思路通过opencv调用摄像头拍照保存图像本地 ...
python控制摄像头拍照_用Python控制摄像头拍照并发邮件
1 前言为什么会有写这个程序的想法呢? 最初的想法是写一个可以用电脑前置摄像头拍照的程序,在舍友使用你电脑的时候,不经意间获取到一大堆奇葩舍友的表情包. 然后我又突发奇想,要不搞个开机启动吧,这样我 ...
【Python】控制自己的手机摄像头拍照，并自动发送到邮箱
前言嗨喽,大家好呀~这里是爱看美女的茜茜呐今天这个案例,就是控制自己的摄像头拍照, 并且把拍下来的照片,通过邮件发到自己的邮箱里. 想完成今天的这个案例,只要记住一个重点:你需要一个摄像头思路 ...

【PYQT项目】摄像头拍照保存

文章目录

1.实现目标

2.Qt designer绘制界面

3.将.ui文件转为.py文件

4.ui_MainWindow.py文件

5.myMainWindow.py文件（调用ui_MainWindow.py）

6.主程序入口appMain.py（非必须）

7.效果

【PYQT项目】摄像头拍照保存相关推荐

最新文章

热门文章