I'm making an application to control a camera. I have the main window where the live image of what the camera is capturing will be shown. However, I have the start and end button in another window that is built in QWidget. In the QWidget window the image appears, I tried to make a logic to send it to the Main View but so far without effect. Does anyone know what my problem might be? Thank you all! Camera Class class CameraControl(QWidget): frame_ready = pyqtSignal(QImage) def __init__(self, update_callback=None): super().__init__() self.update_callback = update_callback self.init_ui() def init_ui(self): ------Code-------- def start_camera(self): ------Code-------- def stop_camera(self): ------Code-------- def update_frame(self): image, status = self.stream.wait() if status == cvb.WaitStatus.Ok: frame = cvb.as_array(image, copy=True) # Normalize if 16-bit if frame.dtype == np.uint16: frame = cv2.normalize(frame, None, 0, 255, cv2.NORM_MINMAX).astype(np.uint8) # Resize for display frame = cv2.resize(frame, (0, 0), fx=0.5, fy=0.5, interpolation=cv2.INTER_AREA) # Convert to QImage format h, w = frame.shape qt_image = QImage(frame.data, w, h, w, QImage.Format_Grayscale8) if self.update_callback: print("[DEBUG] frame_ready signal emitted!") self.frame_ready.emit(qt_image) Class Main Window class MainWindow(QMainWindow): def __init__(self): super().__init__() self.camera_control = CameraControl(self.update_video_feed) self.camera_control.frame_ready.connect(self.update_video_feed) self.initUI() def initUI(self): # Video Feed Labe self.video_label = QLabel(self) self.video_label.setAlignment(QtCore.Qt.AlignCenter) self.video_label.setFixedSize(640, 480) # Default size self.layout.addWidget(self.video_label, 1, 1, 2, 3) ------Code-------- def update_video_feed(self, image): if image.isNull(): print("[ERROR] Received an invalid image!") return print("[DEBUG] Displaying frame in main window") self.video_label.setPixmap(QtGui.QPixmap.fromImage(image)) self.video_label.repaint() The print print("[DEBUG] Displaying frame in main window") works, it's sending it to the main window, it's just not displaying it. Continue reading...
