实现pyqt5在表单中显示labelimg标记的信息的方法并给出实现代码

要在PyQt5中显示LabelImg标记的信息，可以使用QPixmap和QPainter将图像加载到QWidget中，并在上面绘制标记框和标记文本。以下是一个简单的实现：

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel
from PyQt5.QtGui import QPixmap, QPainter, QPen, QFont
from PyQt5.QtCore import Qt

class ImageLabel(QWidget):
    def __init__(self, image_path, annotations):
        super().__init__()
        self.image_path = image_path
        self.annotations = annotations
        self.initUI()

    def initUI(self):
        self.setGeometry(100, 100, 800, 600)
        self.setWindowTitle('LabelImg Annotations')

        # Load image
        pixmap = QPixmap(self.image_path)

        # Create label widget and set pixmap
        self.label = QLabel(self)
        self.label.setPixmap(pixmap)
        self.label.setGeometry(0, 0, pixmap.width(), pixmap.height())

        # Draw annotations on label widget
        painter = QPainter(self.label.pixmap())
        pen = QPen(Qt.red)
        font = QFont('Helvetica', 10)
        painter.setFont(font)
        painter.setPen(pen)
        for annotation in self.annotations:
            x, y, w, h = annotation['bbox']
            painter.drawRect(x, y, w, h)
            painter.drawText(x, y - 5, annotation['label'])

        self.show()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    image_path = 'example.jpg'
    annotations = [
        {'label': 'person', 'bbox': (100, 100, 50, 100)},
        {'label': 'car', 'bbox': (200, 200, 100, 50)}
    ]
    label_widget = ImageLabel(image_path, annotations)
    sys.exit(app.exec_())

在此示例中，我们定义了一个名为ImageLabel的QWidget子类，它接受图像路径和注释列表作为输入，并使用QPixmap将图像加载到QLabel中。然后，我们使用QPainter在QLabel上绘制标记框和标记文本。最后，我们使用QApplication运行应用程序并显示QWidget。