Research on image scrambling degree evaluation method

Sen Bai; Xiaofeng Liao; Jinyu Chen; Yijun Liu; Xiao Wang

doi:10.1117/12.664291

20 February 2006 Research on image scrambling degree evaluation method

Sen Bai, Xiaofeng Liao, Jinyu Chen, Yijun Liu, Xiao Wang

Proceedings Volume 6041, ICMIT 2005: Information Systems and Signal Processing; 60410E (2006) https://doi.org/10.1117/12.664291
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China

Abstract

This paper discussed the evaluation problem of image scrambling degree (ISD). Inspired by the evaluation method of image texture characteristics, three new metrics for assessing objectively the ISD were proposed. The first method utilized the performance of energy concentration of Walsh transformation (WT), which took into account the properties that a good ISD measurement method should be contented. The second method used angular second moment (ASM) of image gray level co-occurrence matrix (GLCM). The third method combined the entropy of GLCM with image texture characteristic. Experimental results show that the proposed metrics are effective to assess the ISD, which correlates well with subjective assessment. Considering the computational complexity, the first evaluation method based on WT is remarkably superior to the method based on ASM and GLCM in terms of the time cost.

Citation Download Citation

Sen Bai, Xiaofeng Liao, Jinyu Chen, Yijun Liu, and Xiao Wang "Research on image scrambling degree evaluation method", Proc. SPIE 6041, ICMIT 2005: Information Systems and Signal Processing, 60410E (20 February 2006); https://doi.org/10.1117/12.664291

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