DIGITAL-WARTERMARKING

所属分类:波变换
开发工具:matlab
文件大小:2552KB
下载次数:37
上传日期:2013-08-18 22:31:47
上 传 者aes3219563
说明:  使用DCT和小波变换的数字音频水印生成/解码程序,可存活于方差0.05的高斯白噪声及不同程度的剪切。内含程序/测试文件介绍。
(Digital wartermarking encoding/decoding program with DCT and wavelet transform. nice robustness against Gaussian noise with variance less than 0.05 and any type of cropping attack. functions/test files introduction included)

文件列表:
DIGITAL WARTERMARKING\study report\files\a.wav (885228, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\b.wav (885148, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\bb.wav (885148, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\dequan.m (628, 2013-08-18)
DIGITAL WARTERMARKING\study report\files\de_freq.m (1268, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\dwm.m (2194, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\enframe.m (725, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\findwm.m (958, 2013-04-17)
DIGITAL WARTERMARKING\study report\files\freq.m (2270, 2013-08-18)
DIGITAL WARTERMARKING\study report\files\quan.m (942, 2013-08-18)
DIGITAL WARTERMARKING\study report\files\wm.m (2345, 2013-04-17)
DIGITAL WARTERMARKING\study report\Report\report.pdf (521159, 2013-04-18)
DIGITAL WARTERMARKING\study report\files (0, 2013-04-17)
DIGITAL WARTERMARKING\study report\Report (0, 2013-04-17)
DIGITAL WARTERMARKING\study report (0, 2013-08-18)
DIGITAL WARTERMARKING (0, 2013-08-18)

****************************FUNCTION LIST****************************** freq.m : main function of encoding de_freq.m : main function of decoding enframe.m : this is a funtion to cut a 1-D array into pieces wm.m : this function creats a rn-length-array with watermark information(rn is total frame number) dwm.m : this is a function to decode the watermarked information findwm.m : this is a function to find the exact watermarked information from circular expression quan.m : this is the function to encode binary information dequan.m : this is the funtion to decode the binary inform in each frame *************************TEST FILE LIST******************************** a.wav : original music piece (10 seconds) b.wav : music after encoding (watermark inform : hello_everyone) bb.wav: watermarked piece with noise (Gaussian noise with a variance of 0.04)

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