python
复制代码
import sys
from showVideo import Ui_MainWindow
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
import cv2
import os
class videoShow(QMainWindow,Ui_MainWindow):
def __init__(self):
super().__init__()
self.setupUi(self)
self.setWindowTitle("相机")
self.setWindowFlags(Qt.FramelessWindowHint )
self.camera_path = 0
self.n = 0
self.m = 0
self.capture = cv2.VideoCapture(self.camera_path)
# fourcc = cv2.VideoWriter_fourcc('M', 'P', '4', 'V')
# video_writer = cv2.VideoWriter('image/myself.mp4',fourcc,35,(960,540))
self.timer = QTimer(self)
self.timer.timeout.connect(self.show_vid)#连接计时器触发函数，作用相当while语句不断show video
# self.timer.start(30)
def show_vid(self):
flag,self.frame = self.capture.read()
# 此时视频的某一帧图像存在frame中
if flag is False:
return
frame = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
height, width = frame.shape[:2]
pixMap = QImage(frame, width, height, QImage.Format_RGB888) # 定义pixMap,将BGR格式转化成RGB
pixMap = QPixmap.fromImage(pixMap)
ratio = max(width / self.label.width(), height / self.label.height())
pixMap.setDevicePixelRatio(ratio) # 根据比例显示图片
self.label.setAlignment(Qt.AlignCenter) # 设置图片居中显示
self.label.setPixmap(pixMap)
@pyqtSlot()
def on_pushButtonSX_clicked(self):
self.timer.start(30)
@pyqtSlot()
def on_pushButtonGSX_clicked(self):
self.timer.stop()
@pyqtSlot()
def on_pushButtonQX_clicked(self):
self.timer.start(30)
@pyqtSlot()
def on_pushButtonBC_clicked(self):
self.n
new_path = 'image/myself'+ str(self.n) + '.png'
self.n += 1
print(new_path+"保存成功")
cv2.imwrite(new_path,self.frame)
@pyqtSlot()
def on_pushButtonLZ_clicked(self):
fourcc = cv2.VideoWriter_fourcc('M', 'P', '4', 'V')
# 初始化创建 video_writer 变量用来即将保存的录制的视频
video_newpath = 'image/selfvideo'+str(self.m)+'.mp4'
video_writer = cv2.VideoWriter(video_newpath, fourcc, 25, (960, 540)) # 视频地址，视频录制方式,录制视频的尺寸
video_writer.write(self.frame)
@pyqtSlot()
def on_pushButtonEXIT_clicked(self):
QApp = QApplication.instance()
QApp.quit()
if __name__ == '__main__':
app = QApplication(sys.argv)
ui = videoShow()
ui.show()
sys.exit(app.exec_())
python
复制代码
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'showVideo.ui'
#
# Created by: PyQt5 UI code generator 5.15.9
#
# 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
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(719, 546)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(20, 40, 661, 311))
self.label.setStyleSheet("background-color: rgb(0, 0, 0);")
self.label.setText("")
self.label.setObjectName("label")
self.pushButtonSX = QtWidgets.QPushButton(self.centralwidget)
self.pushButtonSX.setGeometry(QtCore.QRect(20, 350, 151, 81))
self.pushButtonSX.setObjectName("pushButtonSX")
self.pushButtonLZ = QtWidgets.QPushButton(self.centralwidget)
self.pushButtonLZ.setGeometry(QtCore.QRect(580, 350, 101, 81))
self.pushButtonLZ.setObjectName("pushButtonLZ")
self.pushButtonBC = QtWidgets.QPushButton(self.centralwidget)
self.pushButtonBC.setGeometry(QtCore.QRect(480, 350, 91, 81))
self.pushButtonBC.setObjectName("pushButtonBC")
self.horizontalSlider = QtWidgets.QSlider(self.centralwidget)
self.horizontalSlider.setGeometry(QtCore.QRect(140, 340, 411, 16))
self.horizontalSlider.setOrientation(QtCore.Qt.Horizontal)
self.horizontalSlider.setObjectName("horizontalSlider")
self.pushButtonGSX = QtWidgets.QPushButton(self.centralwidget)
self.pushButtonGSX.setGeometry(QtCore.QRect(230, 350, 91, 81))
self.pushButtonGSX.setObjectName("pushButtonGSX")
self.pushButtonQX = QtWidgets.QPushButton(self.centralwidget)
self.pushButtonQX.setGeometry(QtCore.QRect(320, 350, 91, 81))
self.pushButtonQX.setObjectName("pushButtonQX")
self.pushButtonEXIT = QtWidgets.QPushButton(self.centralwidget)
self.pushButtonEXIT.setGeometry(QtCore.QRect(50, 440, 591, 61))
self.pushButtonEXIT.setObjectName("pushButtonEXIT")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(20, 0, 661, 41))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 719, 22))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.pushButtonSX.setText(_translate("MainWindow", "开启摄像头"))
self.pushButtonLZ.setText(_translate("MainWindow", "录制"))
self.pushButtonBC.setText(_translate("MainWindow", "保存"))
self.pushButtonGSX.setText(_translate("MainWindow", "抓拍"))
self.pushButtonQX.setText(_translate("MainWindow", "重拍"))
self.pushButtonEXIT.setText(_translate("MainWindow", "关闭主窗口"))
self.pushButton.setText(_translate("MainWindow", "相机"))