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code.rar
- 基于离散小波余弦变换DCT的数字水印算法，实现了水印的嵌入提取等过程。毕业设计源代码,Discrete Cosine Transform Based on Wavelet Digital Watermarking Algorithm in DCT, the watermark embedded in the realization of the process of extraction. Graduation Project source code
erweiDCT
- 用 FPGA实现了二维离散余弦变换和逆变换，结构设计采用行列分解法，乘法器采用移位求和的方法实现，并且采用流水线结构设计，提高处理核的性能-Using FPGA to achieve the two-dimensional discrete cosine transform and inverse transform, the structural design of the use of the ranks of decomposition, the sum of multipliers us
zhidct2
- 这个程序根据公式实现了离散余弦逆变换，可以验证自己编写的离散余弦变换是否正确，对理解公式有帮助。-This procedure according to the formula to achieve the inverse discrete cosine transform, you can write your own validation of discrete cosine transform is correct, understanding the formula help.
ex
- 矩形序列余弦序列的生成 各序列dft fft变换 fft的实现-Rectangular sequence cosine sequence generated dft fft transform the sequence of implementation of fft
Preemphasis
- 傅里叶变换能将满足一定条件的某个函数表示成三角函数（正弦和/或余弦函数）或者它们的积分的线性组合。利用傅里叶变换可对语音信号消噪。-ourier transform to meet certain conditions can be expressed as a function of trigonometric functions (sine and/or cosine functions), or their integral linear combination. Fourier tran
2005-12-29_22-34-9_93
- 用ＶＨＤＬ实现dct．离散余弦变换(DCT)在图像编解码方面应用十分广泛,至今已被JPEG、MPEG1、MPEG2、MPEG4和H26x等国际标准所采用。由于其计算量较大,软件实现往往难以满足实时处理的要求,因而在很多实际应用中需要采用硬件设计的DCT处理电路来满足我们对处理速度的要求-Using VHDL implementation dct. Discrete cosine transform (DCT) in image decoding application of very exten
funcDWT
- 离散余弦变换的MATLAB程序， -Discrete cosine transform of the MATLAB program
whtPdct
- 给出图像处理中应用比较广泛的三种方法：Karhunen－Loeve变换-离散余弦变换-小波变换在图像处理中的比较，供参考-Given the image processing application in a wide range of three methods: Karhunen-Loeve transform- discrete cosine transform- wavelet transform in image processing, comparison and for refer
Fourier-transform
- 傅立叶变换能将满足一定条件的某个函数表示成三角函数（正弦和/或余弦函数）或者它们的积分的线性组合。-Fourier transform can meet certain conditions expressed as a function trigonometric (sine and/or cosine functions) or their integral linear combinations.
biyesheji
- 基于离散余弦变换的数字水印提取嵌入技术应用-Based on the discrete cosine transform digital watermark embedding technology to extract
3MATLABYUYIN
- 3.1语音信号的同态处理和倒谱分析30 3.1.1同态处理的基本原理30 3.1.2复倒谱和倒谱31 3.2离散余弦变换34 3.3Mel频率倒谱系数的分析37 3.3.1Mel滤波器组37 3.3.2MFCC特征参数提取38 3.4小波和小波包变换43 3.4.1小波变换43 3.4.2小波包变换44 3.4.3小波包算法45 3.4.4MATLAB中一维小波和小波包变换函数46 3.4.5MATLAB语音信号小波和小波包变换的例子49 3.
f2t
- 这是一个实现升余弦滚降函数的一段MATLAB代码，在变换不同的滚降系数可以很清楚的观察函数。-This is a realization raised cosine function for some MATLAB code, in the transformation of different roll-off factor can be clearly observed functions.
gen_dct
- 生成一维离散余弦变换矩阵，可用于对一维信号进行压缩-Generate a one-dimensional discrete cosine transform matrix that can be used for one-dimensional signal is compressed
VC++图像处理典型算法完整演示源代码
- VC++图像处理典型算法完整演示源代码,实现傅里叶变换、离散余弦变换等经典图形处理算法(VC++ image processing typical algorithm, complete demonstration source code)
matlab实现DCt
- 用MATLAB实现DCT水印算法。信号经过DCT后，从空间域变换到频域。是一种正交变换的方法。是图像处理中应用即为广泛的傅氏变换中一种特殊的情况（被展开函数是实偶函数，再离散化，即为离散余弦变换）。 同傅氏变换一样，有正反两种变换。(DCT watermarking algorithm is implemented with MATLAB.)
图像频域操作全系列
- 对图像进行傅里叶变换，离散余弦变换，小波分解，拉东变换等(Two layers of wavelet decomposition for image)
JPEGCompression-master
- matlab基于余弦变换及霍夫曼编码实现jpeg压缩和解压，(Matlab implements JPEG compression and decompression)
数字2
- 三角波和反三角波序列的时域和FFT幅频特性，余弦信号傅里叶变换，比较DFT和FFT程序的运行时间(The time-domain and FFT amplitude frequency characteristics of the triangular and anti triangular wave sequences, cosine signal Fu Liye transform, and the running time of DFT and FFT programs are compa