文献类型： 会议论文

第一作者： Zied Kricha

作者： Zied Kricha ¹ ; Anis Kricha ² ; Anis Sakly ³ ; Abdellatif MTIBAA ¹ ;

作者机构： 1.CSR Research Unit of EμE Laboratory, University of Monastir

2.SAGE Laboratory, University of Sousse

3.Unit ESIER in ENIM, University of Monastir

关键词： Digital watermark;QIM;PQIM;Wavelet transform

会议名称： International Conference on Sciences and Techniques of Automatic Control and Computer Engineering

主办单位：

页码： 378-382

摘要： In this work, we investigate the performance of two watermarking scheme QIM and progressive QIM through a statistical analysis. We rely on imperceptibility and robustness as a measure of performance of a watermarking algorithm. Seven wavelet families are used to generate the carrier signal. We insert the watermark message in approximation as well as in different subbands, at a different level of transformation in each wavelet, one at a time. To test the robustness, the watermarked image was subject to several attacks: JPEG, gamma correction, median filter and Gaussian noise.

分类号： TP2-53