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cs-code
- 一个正弦波利用DCT，FFT变换后稀疏化，然后应用压缩感知实现压缩，并有仿真图例说明重构效果。重构算法采用线性规划和OMP算法等，是一个初学CS入门的好例子。-A sine wave using DCT, FFT transform sparse, and then apply compressed sensing to achieve compression, and a legend reconstruction simulation results. Reconstruction algo
FFTDFT
- 使用c++语言对图像进行fft变换以及DCT变换和DCT反变化，并分别输出各种变换后的图像-Using c++ language fft transform of images, as well as anti-DCT transform and DCT changes and transformation, respectively, the output of various image
Analysis_of_channel_estimation_methods_for_OFDMA.
- OFDMA, Orthogonal Frequency Division Multiple Access is a broad band communication method. Here channel estimation is more crucial. Based on the FFT size used for OFDM transmission method that many number of channel co-efficients are to be estimated
DCTencode_and_FFTencode
- 利用matlab对图像进行DCT和FFT变换，效果不错，试试吧！-DCT of the image using matlab and the FFT transform, the effect well, try it!
Freq_Domain
- Transforming images from the spatial domain to frequency domain using FFT and DCT, also it includes transforming to the Cepstrum domain.
DCT_algorithm
- 利用fft的dct算法，是个doc文件，里面列了代码和注释-Fft algorithm using the dct is a doc file, which listed the code and comments
dct
- 这是一个描述离散余弦变换，采用快速傅里叶变换实现-This document is on the discrete cosine transform, using FFT implementation and using block form
Digital_Image_Process_Example
- 本展示程式，采用Borland C++ Builder编译器开发， 参考书籍为 Digital Image Processing, Prentice Hall, 2002. (2nd edition) 具备功能如下： 空间域处理 Spatial domain proc.. 灰阶值转换 Gray Level Trans.. 遮罩型滤波器 Spatial Filter 统计型滤波器 Statistics Filter 梯度运算
DSP
- ECG data compression by using DCT, FFT , DST and DCT2
image
- 系统能读取不同图像，保存处理后的图像； 2. 直方图均衡化； 3. 对图像进行FFT和DCT变换； 4. 对图像添加高斯噪声，进行均值降噪（图像数目可设置）； 5. 对图像进行频域增强（可选一种滤波器对图像平滑或者锐化都行）； 6. 采用阈值法对图像进行二值化；（阈值可设置） -he system can read different image, save the image after processing 2 histogram equalization
61610
- Skew detection and correction is very important task before pre-processing of an image and it is a major problem in scanned documents, if it not detected correctly it will lead wrong result in future during image analysis. During the scanning of th
deskew-110
- Skew detection and correction is very important task before pre-processing of an image and it is a major problem in scanned documents, if it not detected correctly it will lead wrong result in future during image analysis. During the scanning of th
bianhuanbianmaDCT-FFT
- matlab 图像压缩 采用变换编码FFT，DCT方式压缩-matlab image compression using transform coding FFT, DCT compression mode
smoothing
- 基于dct或者fft方法简单快捷的平滑数据。包含源代码与例子。-The following Matlab project contains the source code and Matlab examples used for quick & easy smoothing. smoothes data using a DCT- or FFT-based spline smoothing method.
CS1
- python notebook file compressed sensing using FFT and DCT. where, Both both A and 5 keys are presssed and # sampling rate Fs = 40e3 duration = 1./8 N_samps = int(np.floor(duration*Fs)) # Number of compressed basis functions # i.e.
DCT - Open Source
- DCT Implemetation using FFT.
DFT&DCT
- 编程实现二维8*8图像块的DFT，DCT变换 输入一副RGB图像，将其转化为YCbCr颜色空间，然后对Y分量做分块DFT变换，保存为灰度图像，统计计算时间 编程实现8*8块DCT变换,然后分别显示，当使用64个DCT系数里面的一些系数进行重构，比较其质量；同时熟悉采用FFT来实现DCT变换的思想，并显示2维8*8DCT变换的基函数图像(Programming the DFT, DCT transform of two dimensional 8*8 image block Input
shutu1
- （1）图像基本操作：不同格式（大于3种）图像的读入与存盘、文字叠加、不同彩色空间的转换、图像的DCT及FFT变换等； （2）图像增强：包括直方图拉升（线性和非线性）、直方图均衡、平滑与锐化（采用不同的滤镜），美颜（加分项）； （3）图像恢复：几何操作（如旋转、缩放、投影校正等）、模糊恢复（如运动模糊消除等，加分项）； （4）图像合成（加分项）：实现换头、换背景、图像拼接等功能。((1) Basic operation of image: reading and saving of images