现代电子技术2015，Vol.38Issue(17)：87-88,92,3.
水印容量可变数字图像可恢复水印算法研究
Research on watermark algorithm of recoverable digital image with variable watermark capacity
谢娜 1张亦姝2
作者信息
- 1. 陕西能源职业技术学院,陕西 咸阳 712000
- 2. 空军装备部,陕西 西安 710019
- 折叠
摘要
Abstract
A watermark algorithm of recoverable digital image with variable watermark capacity is studied according to the embedded capacity of the watermark and the security,which can extract image features to generate the recoverable capacity wa-termark. The recoverable watermark of image block takes LSBs of the random embedded secret key in the image block as the foundation,the authenticity of the block itself is judged by comparing the characteristics of recovery watermark reconstruction and the image block. The number of bits should be adopted by variable capacity recovery watermark to restore the image block information,which is used for recover and tamper detection during the embedded period. It is helpful to reduce the embedded watermark capacity,and enhance the ability to resist the constant mean attacks. The analysis results show that the watermark al-gorithm of digital image recovery can obtain the higher quality recovery image and embedded watermark image,and has higher resistance to collage attack.关键词
水印容量/可变数字图像/水印恢复/检测篡改Key words
watermark capacity/variable digital image/watermark recovery/detection tampering分类
信息技术与安全科学引用本文复制引用
谢娜,张亦姝..水印容量可变数字图像可恢复水印算法研究[J].现代电子技术,2015,38(17):87-88,92,3.
