机构

• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [1]

内容类型

• 会议论文 [1]

发表日期

• 2011 [1]

学科主题

筛选

浏览/检索结果: 共1条，第1-1条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序题名升序题名降序作者升序作者降序发表日期升序发表日期降序 DWT-based digital image watermarking algorithm (EI CONFERENCE) 会议论文  OAI收割 IEEE 2011 10th International Conference on Electronic Measurement and Instruments, ICEMI 2011, August 16, 2011 - August 18, 2011, Chengdu, China 作者:  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y. 收藏  |  浏览/下载：11/0  |  提交时间：2013/03/25 This paper presents a digital watermarking algorithm based on the DWT coefficients. This algorithm does not change any information of the original image  but combines the information of low frequency DWT coefficients and the watermark image. The combination is the key  which is used to extract the watermark. When we need to extract the watermark  we can obtain it by divide the key. Because the algorithm does not change any information of the original image  it will not affect the quality of the original image. Experimental results show that the proposed algorithm is robust and secure against a wide range of image processing operations. 2011 IEEE.