Abstract
Privacy protection can be achieved by unrecognizable method such as mosaicing. The method that unrecognizable objects can be reconstructed have been proposed. However, a method of reconstructed image authentication is necessary because reconstructed image is inadmissible. In this paper, we propose a method of image authentication by using encrypted stream by public key. This method can realize privacy protection and image authentication, because the image authentication does not require original image and privacy protect does not destroy its authenticity. Moreover, output data size increases little because the encrypted data for original image reconstruction is embedded into output image by using watermarking based on property of Huffman coding.
