搜索资源列表
dct.rar
- 本人根据公式用VC++做出的DCT变换源码，解说清楚。转换矩阵8*8，计算结果与MATLAB计算结果比较，两者几乎一样(相差仅 0.001)，估计是计算误差，经过我的实践证明并不影响使用。,According to the formula I use VC++ source code to the DCT transform, to clarify. Conversion matrix 8* 8, the calculation results compared with the MATLAB
dctdwt.rar
- matlab 数字水印，dct变换，嵌入水印，简单易懂，方便学习,dct matlab
DWT_DCT_SVD.rar
- this is matlab code for the paper solved on the DWT SVD and DCT ,this is matlab code for the paper solved on the DWT SVD and DCT
workingjpeg.zip
- JPEG DCT based baseline method which divides the image into 8x8 blocks and quantize anthen entropy coded.,JPEG DCT based baseline method which divides the image into 8x8 blocks and quantize anthen entropy coded.
DCT
- 实现对一幅灰度和彩色图像作的离散余弦变换,选择适当的DCT系数阈值对其进行DCT反变换.-The realization of a piece of gray and color images for the discrete cosine transform, select the appropriate thresholds for DCT coefficients of its inverse transform DCT.
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
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
DCT
- 利用matlab实现基于DCT变换的变焦距图像融合-Using matlab to achieve DCT-based image fusion Zoom
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
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.
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.
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
dct
- 利用DCT进行图像压缩（首先将图像分割成8×8的图像，对每个子图像进行DCT，这样每个子图像有64个系数，舍去50％小的变换系数，进行2：1的压缩。）-The use of DCT for image compression
Dct
- 主要研究了彩色图像数字水印算法，在DCT域进行了水印的自适应嵌入和提取，并用Matlab进行了仿真实验，测试算法的性能-The main color image watermarking algorithm in the DCT domain adaptive watermark embedding and extraction, and with the Matlab simulation experiment to test the performance of algorithm
Discrete_Cosine_and_Sine_Transforms
- 继 Discrete Cosine Transform: Algorithms, Advantages, Applications (K. R. Rao and P. Yip) 之后的一本关于离散余弦变换(DCT)的快速实现算法的最新专著. 本书第五章“Integer Discrete Cosine/Sine Transforms”关于DCT整数近似实现写的非常详细和精彩, 很方便大家编程实现. 值得一提的是本书的第一作者Vladimir Britanak 一直在从事DCT, 尤其是改进的离散余
DCT
- 将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩。-The image sub-block (8* 8) for the DCT transform, and to make IDCT: DCT is a separable image transformations, is used to image compression coding, IDCT is used to decompress.
dct
- DCT图像压缩算法。1.图象进行归一化 2.显示系数图象 3.重构及显示图象 4.显示误差图象 5.计算归一化图象的均方误差 -DCT image compression algorithm. 1. Images were normalized 2. Shows coefficient image 3. Reconstruction and display of images 4. Show the error images 5. Calculated normalized mean squar
dct
- 离散余弦变换源代码(VC)- Separate cosine transformation source code (VC)