def METHOD_NAME(self) -> QtGui.QImage:
    """Converts array data stored in object to QImage.
    Returns:
        QImage.
    """
    if self.confmap is None:
        return
    # Get image data
    frame = self.confmap
    # Colorize single-channel overlap
    if np.ptp(frame) <= 1.0:
        frame_a = (frame * 255).astype(np.uint8)
        frame_r = (frame * self.color_map[0]).astype(np.uint8)
        frame_g = (frame * self.color_map[1]).astype(np.uint8)
        frame_b = (frame * self.color_map[2]).astype(np.uint8)
    else:
        frame_a = (frame).astype(np.uint8)
        frame_r = (frame * (self.color_map[0] / 255.0)).astype(np.uint8)
        frame_g = (frame * (self.color_map[1] / 255.0)).astype(np.uint8)
        frame_b = (frame * (self.color_map[2] / 255.0)).astype(np.uint8)
    frame_composite = np.dstack((frame_r, frame_g, frame_b, frame_a))
    # Convert ndarray to QImage
    image = qimage2ndarray.array2qimage(frame_composite)
    return image