Search - fft dct

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[GDI-Bitmap] 图像频率域变换 DL : 0: 图像频率域的变换方法集合，含有fft,dct,wavlet等-Image Transform the frequency domain method pool, containing fft, Copy, etc. wavlet
Update : 2008-10-13 Size : 5.73kb Publisher : Gan
[Other] fft+DCT DL : 0: 自己手写的图像的FFT变换和DCT变换的MATLAB代码-own handwritten Image Transform FFT and DCT MATLAB code
Update : 2008-10-13 Size : 733.29kb Publisher : Alex
[GDI-Bitmap] 图像频率域变换 DL : 0: 图像频率域的变换方法集合，含有fft,dct,wavlet等-Image Transform the frequency domain method pool, containing fft, Copy, etc. wavlet
Update : 2025-02-17 Size : 5kb Publisher : Gan
[Wavelet] MYDCT-Qwx DL : 0: 我自己写的DCT变换，8*8点的，采用FFT算法完成快速的DCT-I wrote it myself DCT, 8* 8 o'clock, FFT algorithm rapid completion of the DCT
Update : 2025-02-17 Size : 50kb Publisher : 邓云
[VHDL-FPGA-Verilog] matlab-fft DL : 0: FFT的MATLAB的实现方式，自己试过，大家可以参考一下。-FFT MATLAB way to achieve their tried, we could take a look.
Update : 2025-02-17 Size : 1kb Publisher : 郭子荣
[Other] fft+DCT DL : 0: 自己手写的图像的FFT变换和DCT变换的MATLAB代码-own handwritten Image Transform FFT and DCT MATLAB code
Update : 2025-02-17 Size : 733kb Publisher : Alex
[Special Effects] watermark DL : 0: 这是一个完成各种数字图像水印的算法的程序，里面也实现了dct，fft，以及水印的改进算法，程序移植性好-This is a complete range of digital image watermarking algorithm procedure, which also realize the dct, fft, as well as to improve the watermarking algorithm, transplantation procedures and good
Update : 2025-02-17 Size : 52kb Publisher : 粘永健
[Special Effects] DCT DL : 0: 将一副256*256的灰度图像分成8*8的小图像块，然后进行dct变换-Will be a 256* 256 gray image is divided into 8* 8 small image blocks, and then proceed to DCT transform
Update : 2025-02-17 Size : 380kb Publisher : 笨笨
[Algorithm] fft DL : 0: 由上述实验过程的图像变化可知，经过傅立叶变换和反变换及DCT离散余弦变换和反变换后，图像都发生了很大的变化，首先是经过2-D傅立叶变换后，图像数据频域出现高频数据集中，低频数据在四周的现象，然后再经过2-D傅立叶变换反变换后，图像再次恢复原始图。而2-D离散余弦变换对图像的影响也是如此。-From the above experiment, we can see the image change, after Fourier transform and inverse transform and DCT discrete cosine transform and inverse transform, the images have changed a lot, first of all, is a 2-D Fourier transform, the image data emergence of high-frequency frequency-domain data, low-frequency data in the four weeks of the phenomenon, and then after a 2-D Fourier transform inverse transform, the image again to restore the original map. And 2-D discrete cosine transform on the impact of images is also true.
Update : 2025-02-17 Size : 464kb Publisher :
[Algorithm] FFT DL : 0: 对图像进行离散余弦变换处理，包含FFT，DCT-On discrete cosine transform image processing, including FFT, DCT
Update : 2025-02-17 Size : 1kb Publisher : waternie
[2D Graphic] MulitDocument12-4 DL : 0: bmp JPG相互转化.FFT DCT变化-bmp JPG mutual conversion. FFT DCT changes
Update : 2025-02-17 Size : 10.04mb Publisher : andy
[VHDL-FPGA-Verilog] butterfly DL : 0: 蝶形运算，可用于DCT变换，FFT变换的模块-Butterfly computation, can be used for DCT transform, FFT transform module
Update : 2025-02-17 Size : 1kb Publisher : 过时无双
[Special Effects] ImageBoard DL : 0: 功能十分强大的数字图像处理程序，具有基本的图像输入和变换，图形的即时绘制，彩色图像处理，图像旋转平移缩放，分离滤除RGB三原色，边缘检测与提取，频域变换（FFT，DCT），中值滤波等功能-Function is very powerful digital image processing procedures, have a basic input and transform images, graphics, real-time rendering, color image processing, image rotation scaling translation, the three primary colors RGB separation filter, edge detection and extraction, frequency domain transform (FFT, DCT ), median filtering and other functions
Update : 2025-02-17 Size : 3.85mb Publisher : Myrrhy
[Special Effects] MATLAB_code_of_image_processing DL : 1: 该gui函数基本上包括图像处理里面的最基本处理，相当于一个小型photoshop。比如读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，DCT，DST，DHT，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；图像增强里面的加噪声，平滑，锐化，伪彩色增强；图像分割里面的灰度阈值法，Robert，Laplace，sobel，prewitt，canny算子边缘检测法；图像恢复里面的直接逆滤波，维纳滤波；图像编码里面的霍夫曼编码，行程编码-Basically, the gui functions including the most basic image processing inside the handle, which is equivalent to a small photoshop. For example, read the document, the geometric transformation of the vertical mirroring, shifting, rotating, zooming orthogonal transformation of the DFT, FFT, DCT, DST, DHT, DWashT anti-gray color processing, histogram equalization, global linear transformation , piecewise linear transformation, index of non-linear transform of the number of non-linear transformation image enhancement which increases the noise, smoothing, sharpening, pseudo-color enhancement the gray-scale image segmentation inside the threshold, Robert, Laplace, sobel, prewitt, canny edge detection operator method image restoration inside direct inverse filtering, Wiener filtering image coding inside the Huffman code, and so on Run-Length Coding
Update : 2025-02-17 Size : 389kb Publisher : guhuxiang
[JSP/Java] sp_java_applets_src DL : 0: Java applets that visualize signal processing operations: FFT, DCT, WHT transforms and 1-D FIR filtering.
Update : 2025-02-17 Size : 11kb Publisher : xyzyx
[Wavelet] FFT DL : 0: 图像的DCT（离散余旋）和FFT（傅立叶）变换。-The image DCT (Discrete I spin) and FFT (Fourier) transformation.
Update : 2025-02-17 Size : 1.17mb Publisher : 谌叶龙
[Special Effects] dct DL : 0: 基于快速fft变换的dct变换，实现速度快，效率高-Based on fast fft transform dct transform, to achieve fast, efficient
Update : 2025-02-17 Size : 1kb Publisher : liuhongwei
[Graph program] bianhuanbianmaDCT-FFT DL : 0: 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
Update : 2025-02-17 Size : 169kb Publisher : psc
[Special Effects] FFT-DCT DL : 0: 这两个程序分别是对图像进行FFT变换和DCT变换。-zhe liang ge cheng xu shi dui tu pian jin xing FFT and DCT bian huan .
Update : 2025-02-17 Size : 104kb Publisher : 马小平
[Other] DCT - Open Source DL : 0: DCT Implemetation using FFT.
Update : 2025-02-17 Size : 28kb Publisher : electronic1989

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