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二维小波变换
- 关于二维小波变换的程序 [精华] 说明：此算法重在概念，速度并不是很快。因为FOR循环的缘故。此程序从循环矩阵的观点出发，把圆周卷积和快速幅里叶变换建立了联系。实现了分解和无失真重构。它只做了一层分解，即将256x256图形分解成为64x64的四个图形，避免了使用WKEEP()的困惑。主要思想为用小波滤波器族构造正交阵W,变换写为B=W*A*W ,反变换为：A=W *A*W,这与所有正交变换无异。W为循环正交矩阵，因此可用FFT实现快速运算，难点就在重构矩阵上。若用矩阵概念明确，一个
C1PROJ2003-1
- 使用影像處理原理與應用課本中所提及的小波轉換的知識，將一張影像轉換為四張包含不同資訊的影像。並對於特殊的影像處理要求，分別對特定幾張影像作反轉換，會產生符合要求的影像。-use image processing and application of principles mentioned in the textbooks of wavelet conversion expertise, the conversion of an image containing four different i
XiaoBoBianHuanVC++
- 里面有小波变换应用的算法,如行列变换,滤波,反变换等.-inside the application of wavelet transform algorithm, as the ranks of transformation, filtering, anti-transformation.
Multi_Wavelet.rar
- 多小波代码，有CL,GHM,Sa4,Opt-rec四种多小波的变换与反变化，前处理和后处理的代码。,Multiwavelet code, there are CL, GHM, Sa4, Opt-rec four Multiwavelet Transform and anti-change, pre-treatment and post-processing code.
watermark
- 这个算法能使用DCT变换在图像中加入和检测出水印，抗干扰性能比较强，而且算法比较优化。-The algorithm can use the DCT transform in the image by adding and testing a watermark, a strong anti-interference performance, and optimization algorithms.
fourier_ecg
- 心电图的傅里叶变换，反傅里叶变换滤波等等。阈值算法求波位置。-ECG Fourier Transform, the anti-Fourier transform filtering and so on. Threshold algorithm for wave position.
watermark
- 一个简单的基于小波变换水印算法,抗攻击能力较强-A simple Watermarking Algorithm Based on Wavelet Transform, anti-attack ability
littlewave
- 图像小波变换，一次，二次变换和反变化，还有滤波-Image wavelet transform, the first and second transformation and anti-change, as well as filtering
dct
- 程序实现了对灰度图像的离散余弦变换和小波变换,并能进行反变换-Procedures to achieve gray-scale image of the discrete cosine transform and wavelet transform, and anti-transform
LtoLHtoH_svd
- 本算法结合小波变换和SVD奇异值变换，实现了水印的嵌入和提取，载体图像的鲁棒性和水印的不可见性，提取出的水印图像的和原水印图像基本一致，抗攻击性强。-The algorithm combines wavelet transform and SVD singular value transformation, achieved watermark embedding and extraction, vector image watermark robustness and invisibility
wavelet-fft
- 该程序主要说明了小波具有良好的抗噪功能，与fft相比，它有自己的独特之处。-The program mainly explains the wavelet has a good anti-noise function,and compared with the fft, it has its own uniqueness.
Matlab-wavelet-lifting-scheme
- 提升小波源代码，可直接用于matlab编程，具有许多优良特性：结构简单、运算量低、原位运算、节省存储空间、逆变化可以直接反转实现，以及可逆的整数到整数变换。-The wavelet lifting scheme under matlab.It has many features:simple structure,little caculation scalar,computing at the original place,little storation,directily anti-conv
kanggongji
- 水印抗攻击测试,基于小波变换，用于检测加入水印后图像的鲁棒性-Watermark anti-attack test for the detection of the robustness of the watermarked image based on wavelet transform