辽宁石油化工大学学报2017，Vol.37Issue(6)：51-55,5.DOI:10.3969/j.issn.1672-6952.2017.06.011
空间域和频率域相结合的图像水印研究
Research on Image Watermarking Combining Spatial and Frequency Domains
摘要
Abstract
A new technique combining spatial domain and frequency domain is proposed,which can provide more watermarks in the condition of reducing the distortion of watermark image.The watermark is divided into two parts:the spatial domain and the frequency domain,and embedded into the spatial domain and the frequency domain according to the user's needs or the importance of the data respectively.Experimental results provide the comparisons when different sized watermarks are embedded into the grayscale image.The proposed combinational image watermarking possesses the following advantages.More watermark data can be embedded into the host image,so that the capacity is increased.The watermark is divided into two parts in spatial domain and frequency domain makes the degree of protection double.The splitting strategy can be designed to be more complex in order to make the embedded watermark unrecoverable.In addition,in order to enhance the robustness,a random permutation of the watermark is used to combat the attacks of signal processing such as image crops.关键词
图像处理/图像水印/压缩/安全/加密/信号处理Key words
Image processing/Image watermarking/Compression/Security/Encryption/Signal processing分类
信息技术与安全科学引用本文复制引用
张威,陈飞旭,葛琳琳..空间域和频率域相结合的图像水印研究[J].辽宁石油化工大学学报,2017,37(6):51-55,5.基金项目
抚顺市科学技术发展资金计划项目(FSKJHT201548) （FSKJHT201548）
辽宁省大学生创新创业项目(2014101486060、201510148068). （2014101486060、201510148068）
