μ-Law Based Watermarking for HDR Image Robust to Tone Mapping
High Dynamic Range (HDR) images have been widely applied in daily applications. However, HDR image is special format, which need to pre-process known as tone mapping operators for display. Since the visual quality of HDR images are very sensitive to luminance value variations, conventional watermarking methods for low dynamic range (LDR) images are not suitable and may even cause catastrophic visible distortion. Currently, few methods for HDR image watermarking are discussed. In this paper, we propose a watermarking scheme for HDR image. Both of the subjective and objective qualities of watermarked image are improved. What’s more, it also shows higher robustness against tone mapping operations.
Xinwei Xue Masahiro Okuda Satoshi Goto
Graduate School of Information, Production and Systems, Waseda University, Japan The University of Kitakyushu, Dpt. of Information and Media Sciences, Japan
国际会议
2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)
西安
英文
1-4
2011-10-18（万方平台首次上网日期，不代表论文的发表时间）