pip?install?PyQt5

pip?install?python-opencv

#?It's?just?an?alias?for?the?cv2?module.
import?cv2?as?cv_

#?It's?importing?all?the?classes?from?the?QtGui?module.
from?PyQt5.QtGui?import?*

#?It's?importing?all?the?classes?from?the?QtCore?module.
from?PyQt5.QtCore?import?*

#?It's?importing?all?the?classes?from?the?QtWidgets?module.
from?PyQt5.QtWidgets?import?*

#?It's?importing?the?sys?module.
import?sys

#?It's?importing?the?os?module.
import?os

#?It's?importing?the?time?module.
import?time

#?It's?importing?the?traceback?module.
import?traceback

class?CameraUI(QWidget):
????def?__init__(self):
????????super(CameraUI,?self).__init__()
????????self.init_ui()

????def?init_ui(self):
????????self.setWindowTitle('本地監(jiān)控工具?公眾號：Python 集中營')
????????self.setWindowIcon(QIcon('ico.png'))
????????self.resize(600,?400)

????????self.label_view?=?QLabel()

????????self.image_path?=?QLineEdit()
????????self.image_path.setReadOnly(True)
????????self.image_path.setPlaceholderText('視頻流圖片保存地址')

????????self.image_path_btn?=?QPushButton()
????????self.image_path_btn.setText('打開')
????????self.image_path_btn.clicked.connect(self.image_path_btn_clk)

????????self.video_path?=?QLineEdit()
????????self.video_path.setReadOnly(True)
????????self.video_path.setPlaceholderText('監(jiān)控視頻保存地址')

????????self.video_path_btn?=?QPushButton()
????????self.video_path_btn.setText('打開')
????????self.video_path_btn.clicked.connect(self.video_path_btn_clk)

????????self.start_listen_btn?=?QPushButton()
????????self.start_listen_btn.setText('開啟監(jiān)控')
????????self.start_listen_btn.clicked.connect(self.start_listen_btn_clk)

????????self.brower?=?QTextBrowser()
????????self.brower.setReadOnly(True)
????????self.brower.setFont(QFont('宋體',?8))
????????self.brower.setPlaceholderText('日志處理過程區(qū)域...')
????????self.brower.ensureCursorVisible()

????????hbox?=?QHBoxLayout()
????????vbox_left?=?QVBoxLayout()
????????vbox_right?=?QVBoxLayout()

????????vbox_left.addWidget(self.label_view)
????????vbox_right_grid1?=?QGridLayout()
????????vbox_right_grid1.addWidget(self.image_path,?0,?0,?1,?2)
????????vbox_right_grid1.addWidget(self.image_path_btn,?0,?2,?1,?1)
????????vbox_right_grid1.addWidget(self.video_path,?1,?0,?1,?2)
????????vbox_right_grid1.addWidget(self.video_path_btn,?1,?2,?1,?1)

????????vbox_right_grid2?=?QGridLayout()
????????vbox_right_grid2.addWidget(self.brower,?0,?0,?1,?3)
????????vbox_right_grid2.addWidget(self.start_listen_btn,?1,?0,?1,?3)

????????vbox_right.addLayout(vbox_right_grid1)
????????vbox_right.addLayout(vbox_right_grid2)

????????hbox.addLayout(vbox_left)
????????hbox.addLayout(vbox_right)

????????self.listen_thread?=?ListenWorkThread(self)
????????self.listen_thread.message.connect(self.show_message)
????????self.listen_thread.finished.connect(lambda:?self.start_listen_btn.setEnabled(True))

????????self.setLayout(hbox)

????def?show_message(self,?text):
????????cursor?=?self.brower.textCursor()
????????cursor.movePosition(QTextCursor.End)
????????self.brower.append(text)
????????self.brower.setTextCursor(cursor)
????????self.brower.ensureCursorVisible()

????def?image_path_btn_clk(self):
????????dir?=?QFileDialog.getExistingDirectory(self,?"選擇文件夾",?os.getcwd())
????????self.image_path.setText(dir)

????def?video_path_btn_clk(self):
????????dir?=?QFileDialog.getExistingDirectory(self,?"選擇文件夾",?os.getcwd())
????????self.video_path.setText(dir)

????def?start_listen_btn_clk(self):
????????self.listen_thread.start()

class?ListenWorkThread(QThread):
????message?=?pyqtSignal(str)
????finished?=?pyqtSignal(bool)

????def?__init__(self,?parent=None):
????????super(ListenWorkThread,?self).__init__(parent)
????????self.parent?=?parent
????????self.working?=?True

????def?__del__(self):
????????self.working?=?False

????def?run(self):
????????try:
????????????image_path?=?self.parent.image_path.text()
????????????video_path?=?self.parent.video_path.text()
????????????if?image_path.strip()?==?''?or?video_path.strip()?==?'':
????????????????self.message.emit('相關路徑設置不能為空，請檢查設置！')
????????????????return
????????????self.cap?=?cv_.VideoCapture(0)
????????????self.cap.set(3,?300)
????????????self.cap.set(4,?400)
????????????if?self.cap.isOpened():
????????????????self.message.emit('攝像頭已成功打開！')
????????????????n?=?0
????????????????self.message.emit('正在進行視頻 監(jiān)控中....')
????????????????start_time?=?time.clock()
????????????????while?True:
????????????????????ret,?img?=?self.cap.read()
????????????????????if?os.path.exists(os.path.join(image_path,?str(n)?+?'.jpg')):
????????????????????????os.remove(os.path.join(image_path,?str(n)?+?'.jpg'))
????????????????????self.save_image(img,?str(n),?image_path)
????????????????????time.sleep(0.1)
????????????????????pixmap_?=?QPixmap(os.path.join(image_path,?str(n)?+?'.jpg'))
????????????????????self.parent.label_view.setPixmap(pixmap_)
????????????????????n?=?n?+?1

????????????self.finished.emit(True)
????????except?Exception?as?e:
????????????traceback.print_exc()
????????????self.message.emit('程序運行錯誤，請檢查參數(shù)是否設置正確！')
????????????self.finished.emit(True)

????def?save_image(self,?image=None,?file_name=None,?image_path=None):
????????if?image?is?not?None:
????????????cv_.imwrite(os.path.join(image_path,?file_name?+?'.jpg'),?image)

if?__name__?==?'__main__':
????app?=?QApplication(sys.argv)
????main?=?CameraUI()
????main.show()
????sys.exit(app.exec_())