Search - discrete cosine

[Mathimatics-Numerical algorithms] 2维图像离散余弦变换

Description: 二维图像离散余弦变换：数字图像处理常用例程，可执行文件在Release中，具体说明见Readme。-two-dimensional discrete cosine transform image : Digital image processing routines used, in the Release executable file, specify see readme.
Platform: | Size: 138240 | Author: 陈咚 | Hits:

[Graph program] FFT_DCT

Description: 快速傅立叶变换和离散余弦变换的简单实现，有一些小问题，就不修复了，呵呵。-fast Fourier transform and discrete cosine transform a simple, and it is only a small problem, not repaired, huh.
Platform: | Size: 357376 | Author: asly | Hits:

[Algorithm] dct_p

Description: 这是用VHDL语言(硬件描述语言)写的一个二维 8*8块的离散余弦变换(DCT)以及反变换(IDCT).全同步设计,低门数.可以用于多媒体及打印应用领域.-VHDL (hardware description language) wrote a two-dimensional 8* 8 discrete cosine transform (D CT) and the anti-transform (IDCT). fully synchronous design, low gate count. can be used for multimedia and print applications.
Platform: | Size: 32768 | Author: citybus | Hits:

[2D Graphic] 2DDCT

Description: 实现快速离散余弦变换的C代码。用在2 维图形压缩处理的预先处理-fast discrete cosine transform C code. Using the two-dimensional graphics compression pre-treatment
Platform: | Size: 2048 | Author: 闫位岸 | Hits:

[Wavelet] Discrete_cosine_Transform

Description: Discrete cosine Transform的VC源代码希望能对大家有帮助-Discrete Cosine Transform VC source code in hopes of Members help
Platform: | Size: 48128 | Author: lixin | Hits:

[Graph program] CodeforMATLABImageProcessing

Description: 程序代码说明 P0301：数字图像矩阵数据的显示及其傅立叶变换 P0302：二维离散余弦变换的图像压缩 P0303：采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化 P0305：模拟图像受高斯白噪声和椒盐噪声的影响 P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波 P0309：运用5种不同的梯度增强法进行图像锐化 P0310：图像的高通滤波和掩模处理 P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理 -code P0301 : Digital image data matrix display and Fourier Transform P0302 : Two-dimensional discrete cosine transform image compression P0303 : Gray used a new method to enhance the contrast of the image P0304 : histogram equalization P0305 : Simulation images by white Gaussian noise and Impulse noise impact P0306 : 2D median filtering function medfilt2 right by the Salt and Pepper image noise filtering P0307 : MATLAB filter2 the function of noise interference by the image filtering P0308 : Image Adaptive Filter Weiner P0309 : use five different gradient Enhancement Act for image sharpening P0310 : Images of the high-pass filtering and mask handling P0311 : use Butterworth (Butterworth) low-pass filter to noise interference by the image smoothing P 0312 : Butterworth (Butterworth) high-pa
Platform: | Size: 11264 | Author: Jimmy Yen | Hits:

[Wavelet] fdct

Description: 使用vc++6.0完成快速离散余弦变换。-Use vc++ 6.0 complete the fast discrete cosine transform.
Platform: | Size: 2634752 | Author: 琨 | Hits:

[VHDL-FPGA-Verilog] dct

Description: 离散余弦变换的verilog源代码，经过验证可实现-Discrete cosine transform of Verilog source code can be verified
Platform: | Size: 27648 | Author: 罗伟 | Hits:

[Multimedia program] dct

Description: Mpeg2视频压缩时进行空间压缩时的离散余弦变换矩阵的verilog实现，采用modelsim验证-Mpeg2 video compression when space compression of discrete cosine transform matrix realize Verilog using ModelSim verification
Platform: | Size: 29696 | Author: mayang | Hits:

[Special Effects] image-compress-denoise

Description: 图像压缩去噪增强锐化程序，供大家参考。包括：数字图像矩阵数据的显示及其傅立叶变换二维离散余弦变换的图像压缩采用灰度变换的方法增强图像的对比度采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波图像的自适应魏纳滤波运用5种不同的梯度增强法进行图像锐化图像的高通滤波和掩模处理利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-Sharpen Image Compression Denoising enhanced procedures for your reference. Include: digital image data display matrix and its Fourier transform two-dimensional discrete cosine transform image compression method using gray-scale transformation of the contrast-enhanced images using two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering using MATLAB The function affected by noise interference filter2 images mean filter Adaptive Image Filtering Wehner use five kinds of different gradient method to enhance image sharpening images of high-pass filtering and mask treatment using Butterworth (Butterworth) low pass filter noise by smoothing the images deal with the use of Butterworth (Butterworth) high-pass filter for sharpening images treatment
Platform: | Size: 11264 | Author: 张悦庭 | Hits:

[VHDL-FPGA-Verilog] DCT_IDCT

Description: 离散余弦变换及反离散余弦变换的HDL代码及测试文件。包括VHDL及Verilog版本。可用途JPEG及MEPG压缩算法。-Discrete cosine transform and inverse discrete cosine transform of the HDL code and test files. Including VHDL and Verilog versions. And MEPG can use JPEG compression algorithm.
Platform: | Size: 29696 | Author: caesar | Hits:

[Special Effects] Image-Compression

Description: 一系列展示图像压缩技术的源代码。包括有：使用块截断编码的图像压缩(Block Truncation)、基于高斯金字塔变换的图像压缩(Gaussian Pyramids)、基于离散余弦变换对图像压缩(Discrete Cosine Transform)、基于奇异值分解(SVD)的图像压缩(Singular Value Decomposition)。给出的代码还可以用于2D图像噪声消除-A series of image compression technology to display the source code. Include: the use of block truncation coding for image compression (Block Truncation), based on the Gaussian pyramid transform for image compression (Gaussian Pyramids), based on the discrete cosine transform for image compression (Discrete Cosine Transform), based on singular value decomposition (SVD) Image compression (Singular Value Decomposition). Given code can also be used in 2D image noise cancellation
Platform: | Size: 44032 | Author: 李远 | Hits:

[VHDL-FPGA-Verilog] dct-code

Description: 离散余弦变换的VHDL实现，不错的代码和方法-Discrete cosine transform VHDL realization of good code and methods
Platform: | Size: 30720 | Author: 宋雪兵 | Hits:

[Documents] DigitalImageProcessing3

Description: 3.1 概述 3.2 可分离图像变换 3.3 离散傅里叶变换和性质 3.4 快速傅里叶变换 3.5 离散沃尔什变换 3.6 离散余弦变换 3.7 小波变换 -3.1 overview 3.2 detachable image transform 3.3 Discrete Fourier Transform and Fast Fourier Transform 3.4 Properties 3.5 Discrete Walsh Transform 3.6 Discrete Cosine Transform 3.7 Wavelet Transform
Platform: | Size: 13244416 | Author: wnl | Hits:

[Graph program] 3

Description: matlab代码，数字图像矩阵数据的显示及其傅立叶变换，二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响，采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波-matlab code, digital image data display matrix and its Fourier transform, two-dimensional discrete cosine transform image compression, using gray-scale transformation method to enhance image contrast, histogram homogenization, analog image by Gaussian white noise and salt and pepper the impact of noise, using two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering
Platform: | Size: 2048 | Author: wang | Hits:

[Compress-Decompress algrithms] cosine

Description: 本文件是离散余弦的具体实现，文件虽然简单了点，但希望对大家有所帮助！-The present document is a concrete realization of discrete cosine, while the paper a simple, but we want to help!
Platform: | Size: 9216 | Author: 张影风 | Hits:

[Compress-Decompress algrithms] Discrete_Cosine_and_Sine_Transforms

Description: 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弦变换(MDCT)的快速算法的研究.-This book, which is written very carefully, is a new monograph of Discrete Cosine Transform (DCT).The fifth chapter about the Integer Discrete Cosine/Sine Transforms is especially wonderful.
Platform: | Size: 2693120 | Author: 伍家松 | Hits:

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