搜索资源列表
dct
- 一个快速算法的例子，有和一般算法的比较--A example about fast algorithm , it has been comparied with common algorithms
dct_cs
- DCT压缩感知方案，采用DCT基稀疏分解原始信号，并且重构出原始信号-DCT compressed sensing scheme, using sparse decomposition of the original DCT-based signal and reconstruct the original signal
AudioWatermarking
- 基于听觉频率掩蔽效应的音频数字水印算法和一种基于人耳掩蔽效应的DCT域音频水印-Auditory masking effect on the frequency of the audio digital watermarking algorithm based on the human ear and a masking effect of the DCT-domain audio watermarking
dct
- DCT变换和DCT反变换大全，提供多种DCT算法的实现，可用于图像和声音处理。-DCT and IDCT package, supplies lots of DCT and IDCT algorithm, very useful to image and audio processing
MATLAB
- dct变换 高通滤波 并带有原始图像 对于图像处理的初学者很实用-dct transform
lloyd_max
- dct- computes de discrete cosine transform for a matriz 8*8 from a picture.It receaves the point of the block where begin calculate, the tam of the block and the original picture... lLoyd-max- computes de lLoyd-max optimum quantizer for N bits.
19854796watermarking
- 武汉大学信息隐藏实验实现源代码 各种隐藏算法dct变换，小波变换，MD5算法等-Wuhan University Experimental realization of information hiding all kinds of hidden algorithm source code dct transform, wavelet transform, MD5 algorithm
test_dct
- 本程序是在VC++编译环境下，用纯C语言编写的2D-DCT变换，程序中用的是一个4*4的矩阵进行的变换，可以改为对一幅图像进行。运算结果正确，在Matlab中进行了检验，dct2()指令即进行DCT变换。有一定的参考价值。-This procedure is in VC++ compiler environment, written in pure C 2D-DCT transform, the program used is a 4 x 4 matrix for the transformat
DCT
- c语言DCT变换，还有逆变换，并且带有变换时间计算-dct transform
OFDM
- OFDM仿真程序，信道估计采用LS,MMSE,LMMSE,DCT等方法，做了个比较，ofdm那个是主程序-OFDM simulation program, channel estimation using LS, MMSE, LMMSE, DCT and so on, made a comparison, ofdm that is the main program
ar_dct_kda
- 在AR人脸库上进行DCT变换，使用DCT变换后的图像进行 kernel fisher discriminant analysis,其中kernel 函数可以自己选择-In the AR face database on the DCT transform, using the DCT transformed image kernel fisher discriminant analysis, which can choose the kernel function
YUVdct
- YUV序列打开，DCT变换，IDCT变换、量化、反量化等操作-YUV sequence of open, DCT transform, IDCT transform, quantization, inverse quantization operation
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Fourier transform.
DCT
- 基于visual c++对图像进行DCT变换的编程-Based on visual c++ Image DCT transform programming
DCT2D
- DCT变换的matlab源代码。适合用作特征提取的预处理方法来使用。-DCT transform matlab source code. Suitable for feature extraction preprocessing method to use.
JPEG
- 本文首先介绍了静态图像压缩（JPEG）编码算法的基本原理、压缩的实现过程及其重要过程的离散余弦变换（DCT）算法的实现原理及软件实现的例程，其次着重介绍了压缩过程中的DCT、量化和编码三个重要步骤的实现原理。-This paper describes the static image compression (JPEG) coding algorithm is the basic principle of compression process of the implementation pro
jpeg
- 对JPEG的压缩标准进行了仿真，主要过程DCT压缩，根据JPEG的量化矩阵对DCT结果进行量化，对量化结果进行Huffman编码。同时也实现了解压缩过程，即执行上述过程的逆过程。-JPEG compression standard of the simulation, the main process of DCT compression, according to the JPEG quantization matrix to quantify the results of the DCT,
matlab-code
- 对数字图像处理中的离散傅里叶变换(DFT),离散余弦变换（DCT）进行了详细的分析。其中DFT包括log视觉处理，中心点移动等。DCT包括分块处理，和保留较少系数，并比较结果。-Digital image processing of the discrete Fourier transform (DFT), discrete cosine transform (DCT) for a detailed analysis. DFT which include the log of visual pr
DCT
- 图像的基于8*8分块的DCT变换编码 MATLAB编程环境 -Images based on 8* 8 block of DCT transform coding MATLAB programming environment
information-hiding
- 采用MATLAB实现图像信息隐藏。将文本信息，通过DCT和LSB算法嵌入到二维图像中实现信息隐藏。-hide information into voice signal with the methods of DCT and LSB