This paper focuses on the inverse halftoning problem, that is, the problem of reconstructing continuous‐tone images from halftone images of white and black pixels. In general, the problem does not have a unique solution, since halftoning is a many‐to‐one map from continuous‐tone images to binary ones. To this problem, we provide a simple and useful inverse halftoning method, composed of two steps. The first step is to generate several grayscale images from the original halftone image and low‐pass filters. The next step is to reconstruct a continuous‐tone image from the multiple grayscale images by using super‐resolution image processing. This method allows us to obtain good continuous‐tone images which are comparable to the results of the existing methods. The validity of the proposed method is demonstrated by several experiments. © 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.