Journal of Astronautics ›› 2015, Vol. 36 ›› Issue (3): 315-323.doi: 10.3873/j.issn.1000-1328.2015.03.010
ZHU Li hong，ZHOU Quan
Based on the background of covert transmission for satellite remote sensing image, a robust lossless data hidden algorithm based on integer discrete cosine transformation (IntDCT) domain is proposed. First, the covert image is pre-processed to construct a carrier suitable for embedding information; then, a lossless data hidden idea is introduced to restore the information to be used for reversibly recovering the covert image. In order to give consideration to both robustness and image quality, the algorithm completes the secret information embedding by modifying the high frequency coefficient histogram of covert image in IntDCT domain. Finally, in contrast with the traditional algorithms, in order to ensure the quality of remote sensing images, the proposed algorithm gives the way of image restoration at a receiving end when stego-image has some distortion. Experimental results show that the proposed algorithm can effectively resist the compression attack, has a good image quality and a larger capacity. Compared with the previous algorithm, this algorithm has obvious advantages in terms of performance.
Satellite remote sensing image,
ZHU Li hong，ZHOU Quan. A Robust Lossless Data Hidden Transmission Method for Satellite Remote Sensing Image[J]. Journal of Astronautics, 2015, 36(3): 315-323.
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