当鼠标点击图像时,Pyqt获取像素位置和值

from PyQt5.QtWidgets import QMainWindow, QLabel, QApplication
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtCore import Qt

class ImageWindow(QMainWindow):
    def __init__(self, image_path):
        super().__init__()
        self.label = QLabel(self)
        self.setCentralWidget(self.label)
        
        image = QImage(image_path)
        pixmap = QPixmap.fromImage(image)
        self.label.setPixmap(pixmap)
        
    def mousePressEvent(self, event):
        position = event.pos()
        x = position.x()
        y = position.y()
        
        image = self.label.pixmap().toImage()
        pixel_value = image.pixel(x, y)
        
        print("点击位置：({}, {})，像素值：{}".format(x, y, pixel_value))

if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    window = ImageWindow("image.jpg")
    window.show()
    sys.exit(app.exec_())