標題: AUTHENTICATION AND CROSS-RECOVERY OF MULTIPLE IMAGES
作者: Chen, Lee Shu-Teng
Chen, Shang-Kuan
Lin, Ja-Chen
資訊工程學系
Department of Computer Science
關鍵字: Cross recovery;Image authentication;Reed-Solomon codes;JPEG
公開日期: 1-Jul-2011
摘要: This work presents an authentication and cross-recovery scheme to protect a group of n JPEG images. Given n images, the images are scaled down and then encoded using JPEG to create n recovery data. Based on a pre-determined threshold t, 2 <= t < n, the n recovery data are shared to create n shadows. Next, n authentication data are generated to identify malicious attacks on the system. Additionally, the n shadows and the n authentication data are embedded in the n JPEG codes of the n original images to form n JPEG stego codes, which can be stored in a distributed storage system. Moreover, in the daily maintenance of the storage system, the authentication data concealed inside these n JPEG stego codes are used to verify which ones have been attacked. If some (up to n - t) of the n JPEG stego codes are corrupted, the corrupted JPEG images can be recovered approximately using any t survived JPEG stego codes. Experimental results demonstrate the effectiveness of the proposed method. Comparisons with other image recovery methods are also included.
URI: http://hdl.handle.net/11536/21936
ISSN: 1349-4198
期刊: INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL
Volume: 7
Issue: 7A
起始頁: 3645
結束頁: 3657
Appears in Collections:Articles