A Watermarking-Based Authentication for Progressive Transmission Images

Abstract

The image transmission over the Internet with progression is preferable and provided by most of image encoders such as SPIHT, EZW, JPEG 2000, etc. The progressive image transmission benefits the applications such as low-band channel or time-critical in which the transmission can be halted according to the user requirement. However, the received partial image should also be authenticated to ensure the transmission security. In this paper, a watermarking-based authentication scheme for progressive transmission images is proposed. The authentication code is extracted from the image content, which preserves the characteristic for progressive authentication. The authentication code embedding is incorporated to the multi-stage encoding. The embedded authentication code can be extracted progressively to authenticate the current received images. The experimental results show the validity of the proposed progressive images authentication. Furthermore, the size of the proposed authentication code is small, so that, the distortion of watermarked image is less.