Title :
Embedding gray level images
Author :
Huang, Jiwu ; Shi, Yun Q.
Author_Institution :
Dept. of Electron., Zhongshan Univ., Guangzhou, China
Abstract :
Hiding a gray scale image encounters some difficulties. In this paper, a DCT-based image hiding algorithm is proposed. The bit rate of the hidden image is reduced by applying an image compression technique. To extract the hidden data from the corrupted watermarked image, BCH coding and matched filtering are applied. With the proposed algorithm, we hide a gray scale image of 64×64×8 in an image of 512×512×8. The experimental results demonstrated that the embedded image can be extracted reliably from noisy watermarked images
Keywords :
BCH codes; copy protection; data compression; data encapsulation; discrete cosine transforms; image coding; matched filters; message authentication; BCH coding; DCT-based image hiding algorithm; bit rate reduction; corrupted watermarked image; embedded image extraction; gray level image embedding; hidden data extraction; hidden image; image compression technique; matched filtering; noisy watermarked images; Additive white noise; Bit rate; Data encapsulation; Data mining; Discrete cosine transforms; Filtering; Image coding; Matched filters; Robustness; Watermarking;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922029
