我应该如何从WinForms PictureBox中的屏幕空间坐标转换为图像空间坐标？

private void pictureBox_Click(object sender, EventArgs e)
{
    // 获取鼠标点击的屏幕坐标
    Point mouseScreenPosition = Cursor.Position;

    // 获取 PictureBox 的位置和大小
    Point pictureBoxPosition = pictureBox.Location;
    Size pictureBoxSize = pictureBox.Size;

    // 计算图像在 PictureBox 中的位置
    Point imagePositionInPictureBox = new Point(
        mouseScreenPosition.X - pictureBoxPosition.X - pictureBoxSize.Width / 2,
        mouseScreenPosition.Y - pictureBoxPosition.Y - pictureBoxSize.Height / 2);

    // 获取图像的宽度和高度
    int imageWidth = pictureBox.Image.Width;
    int imageHeight = pictureBox.Image.Height;

    // 计算图像空间坐标
    PointF imageSpacePosition = new PointF(
        (float)imagePositionInPictureBox.X / (pictureBoxSize.Width / 2) * imageWidth,
        (float)imagePositionInPictureBox.Y / (pictureBoxSize.Height / 2) * imageHeight);

    // 显示结果
    MessageBox.Show($"图像空间坐标：({imageSpacePosition.X}, {imageSpacePosition.Y})");
}