计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
24期
91-95
,共5页
复合混沌%块奇异值分解%平衡多小波%均衡因子%鲁棒水印
複閤混沌%塊奇異值分解%平衡多小波%均衡因子%魯棒水印
복합혼돈%괴기이치분해%평형다소파%균형인자%로봉수인
hybrid chaotic%blocks singular value decomposition%balance multiwavelets%equilibrium factor%robust watermarking
提出了一种基于复合混沌系统与平衡多小波、块SVD相结合的鲁棒水印算法。对待嵌入水印信号进行复合混沌置乱加密；对载体图像作一次cardbal2多小波变换；对低频子带进行4×4分块并做SVD处理，根据均衡因子和嵌入系数进行嵌入。实验结果表明算法有很好的不可见性和鲁棒性。
提齣瞭一種基于複閤混沌繫統與平衡多小波、塊SVD相結閤的魯棒水印算法。對待嵌入水印信號進行複閤混沌置亂加密；對載體圖像作一次cardbal2多小波變換；對低頻子帶進行4×4分塊併做SVD處理，根據均衡因子和嵌入繫數進行嵌入。實驗結果錶明算法有很好的不可見性和魯棒性。
제출료일충기우복합혼돈계통여평형다소파、괴SVD상결합적로봉수인산법。대대감입수인신호진행복합혼돈치란가밀；대재체도상작일차cardbal2다소파변환；대저빈자대진행4×4분괴병주SVD처리，근거균형인자화감입계수진행감입。실험결과표명산법유흔호적불가견성화로봉성。
This paper puts forward a kind of robust watermarking algorithm based on block SVD, the hybrid system and balanced multiwavelet. To being embedded watermarking signal, it should make hybrid chaotic system to be scrambled and encrypted. Then the coverimage should be changed by cardbal2 multiwavelet. Low frequency sub-band is done 4 × 4 blocks, SVD handling and embedded according to embedded coefficients and equilibrium factor. The experimental results show that this algorithm has good invisibility and robustness.
