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LiftDwt97
- 提升小波,可直接欠入到VC程序里,比第一代小波算法较快,优点也多.-lifting wavelet can be owed directly into the VC Program, compared to the first generation wavelet algorithm faster, has more advantages.
2
- 选取 Haar 小波的频率响应和，编写 Mallat 算法程序分解和重 构信号 4,4，最大尺度J3.
DWThundunjiami
- 文中提出了一种基于离散小波变换和混沌加密的数字水印新算法,采用二维混沌变换对水印图像加密 对载体图像进行多分辨离散小波变换,应用小波系数判断载体图像的纹理复杂程度后,依据人眼的视觉系统(HVS)特性,将水印信号嵌入到图像的低频部分,对图像的不 同分解层分别选取不同的纹理阈值和水印嵌入强度,将数字水印嵌入到相同分辨层的原始图像中,提高了水印算法的鲁棒性。在检测和提取水印时,通过水印相似度(NC)和峰值信噪比( PNSR)评价水印质量,实验结果表明提出的算法可以抵抗剪裁、JPEG压缩、滤波等几何
1-encryprion-JPEG2000-Image-by-Arnold
- 针对JPEG2000格式的图像，利用了Arnold变换对图像的小波系数进行加密，对初步研究JPEG2000图像加密算法的有试用价值-JPEG2000 image format for the use of the Arnold transform the image of the wavelet coefficients encryption, preliminary study of the JPEG2000 image encryption algorithms have tested th
0707-3
- 小波变换+线性预测+LZ77算法实现极速屏幕监控-Linear Prediction Wavelet Transform++ LZ77 algorithm speed-screen monitor
dwt_embed
- 数字水印嵌入算法，利用离散小波变换的（dwt）算法-Digital watermark embedding algorithm, using discrete wavelet transform (dwt) algorithm
xiaobosuanfa
- 基于matlab的小波算法，给出了一个完整的算例，初学者可以很好的学习。-Based on the the matlab wavelet algorithm is given a complete example, beginners can learn well.
waterprint_rgb
- 此算法为一例实际利用小波变换进行数字水印的制作，在图像的R、G、B三维上进行操作。-This algorithm is an example of the practical use of digital watermarking wavelet transform production, operating in the image of R, G, B on the three-dimensional.
caisetuxiangjiamichengxv
- 采用了迭代混沌，Arnold算法，傅里叶变换加密，小波变换加密对彩色图像的加解密过程-Using iterative chaotic, Arnold algorithm to encrypt the Fourier transform, the wavelet transform color image encryption and decryption process
encryption
- 一种图像加密算法和一种基于小波变换的音频加密算法-An image encryption algorithm and an audio encryption algorithm based on wavelet transform
lavrlct-mainly
- 本程序为构造小波信号,主要采用上采样的算法实现,,不错的(This procedure for constructing the wavelet signal, mainly adopts the sampling algorithm, and good)