华荣三照明、合信、荣欣八组合馈电

Test/video.py

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+import sys
+from PyQt5.QtWidgets import QApplication, QMainWindow, QTextBrowser, QWidget, QLabel, QPushButton, QFileDialog
+from PyQt5.QtGui import QImage, QPixmap
+from PyQt5.QtCore import QTimer, Qt
+import cv2
+ 
+class CameraWindow(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.cap = cv2.VideoCapture(0)  # 默认摄像头
+        self.timer = QTimer()
+        self.initUI()
+        self.timer.timeout.connect(self.update_frame)
+    
+    def initUI(self):
+        self.setGeometry(100, 100, 640, 480)
+        self.setWindowTitle('Camera Feed')
+        self.show()
+        self.timer.start(20)
+ 
+    def update_frame(self):
+        ret, frame = self.cap.read()
+        if ret:
+            height, width, _ = frame.shape
+            bytes_per_line = 3 * width
+            cv2_img = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
+            qt_img = QImage(cv2_img.data, width, height, bytes_per_line, QImage.Format_RGB888)
+            qt_img = qt_img.scaled(self.width(), self.height(), Qt.KeepAspectRatio)
+            self.setCentralWidget(QLabel(self))
+            self.centralWidget().setPixmap(QPixmap.fromImage(qt_img))
+ 
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    window = CameraWindow()
+    sys.exit(app.exec_())