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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def to_color(self, normalize=False):
 """ Convert to a color image. Parameters normalize : bool whether or not to normalize by the maximum depth Returns ------- :obj:`ColorImage` color image corresponding to the depth image """

        im_data = self._image_data(normalize=normalize)
        return ColorImage(im_data, frame=self._frame)