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[2D Graphic] DCT_2D DL : 0: DCT_2D Transform 2D DCT变换-DCT_2D Transform 2D DCT
Date : 2025-12-23 Size : 1kb User : 刘曦
[2D Graphic] FasteffectiveDCT DL : 0: DCT变换是数字图像处理中重要的变换，很多重要的图像算法、图像应用都是基于DCT变换的，如JPEG图像编码方式。对于大尺寸的二维数值矩阵，倘若采用普通的DCT变换来进行，其所花费的时间将是让人难以忍受甚至无法达到实用。而要克服这一难点，DCT变换的快速算法无非是非常吸引人的-DCT digital image processing is an important transformation, many important images algorithm, imaging applications are based on the DCT, such as JPEG image encoding. For large-size two-dimensional numerical matrix, if only the ordinary for DCT, they spent the time people will be unable to reach intolerable even practical. To overcome this difficulty, DCT fast algorithm is nothing more than a very attractive
Date : 2025-12-23 Size : 10kb User : javenliu
[2D Graphic] imagelisanyuxuan(DCT)bianhuansuanfa DL : 0: VC++6.0对图像进行离散余弦变换处理的源代码-VC 6.0, the image discrete cosine transform source code
Date : 2025-12-23 Size : 43kb User :
[2D Graphic] imagetransformationbymatlab DL : 0: 1.图像频域处理正交变换的matlab实例 2.含有的频域变换内容如下：正交变换通用算子傅立叶变换傅立叶变换的原理傅立叶性质二维离散傅立叶变换（ 2DDFT ）快速傅立叶变换（ FFT ）傅立叶变换的研究与应用离散余弦变换 DCT 变换矩阵 dct2 函数和 dctmtx 函数 Walsh- Hadamard 变换 Radon 变换 -1. Image processing orthogonal frequency-domain transform Matlab two examples. Containing the frequency domain transform as follows : orthogonal transformation generic operator Fourier transform theory of Fourier transform two-dimensional Fourier nature of discrete Fourier transform (2DDF T) Fast Fourier Transform (FFT) of the Fourier transform and discrete cosine transform matrix dc t2 function and the function dctmtx Walsh-Hadamard transform Radon transform
Date : 2025-12-23 Size : 5kb User : 方周
[2D Graphic] ImagesharpeningImageTransform DL : 0: Sobel算子：是一种空域微分算子，可以通过它锐化图象。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。-Sobel Operator : airspace is a differential operator, through its image sharpening. Image will block (8* 8), for the DCT and IDCT for : DCT is a separable Image Transform, used to image compression coding.
Date : 2025-12-23 Size : 2kb User : xuhua
[2D Graphic] 20031361 DL : 0: 二维和一维DCT变换以及IDCT变换的程序,有问题自己改正.-two-dimensional and one-dimensional DCT and IDCT transform the procedures to correct their problems.
Date : 2025-12-23 Size : 901kb User : cws
[2D Graphic] dct DL : 0: DCT的Verilog 程序，用QUARTUS进行开发-DCT-Verilog procedures developed by Quartus
Date : 2025-12-23 Size : 2.98mb User : 张伟
[2D Graphic] Watermarking_althorithm_based_on_DCT(MATLAB) DL : 0: 基于DCT变换的水印图像水印算法源代码（matlab实现）。将文件解压缩到MATLAB安装目录下的work文件夹中，然后打开aaa.m文件，运行即可。-Based on the DCT Transform Watermarking Image Watermarking Algorithm source code (matlab achieve). Extract the file to the MATLAB installation directory under the work folder, then open the document aaa.m, running can be.
Date : 2025-12-23 Size : 55kb User : xuan
[2D Graphic] dct DL : 0: dct变换先进fft变换，然后再利用fft进行dct变换，是基于win32平台的-DCT transform fft transform advanced, and then use fft for DCT transform, is based on the win32 platform
Date : 2025-12-23 Size : 6.66mb User : cyy
[2D Graphic] MulitDocument12-4 DL : 0: bmp JPG相互转化.FFT DCT变化-bmp JPG mutual conversion. FFT DCT changes
Date : 2025-12-23 Size : 10.04mb User : andy
[2D Graphic] DCT DL : 0: 该程序利用matlab实现了基于DWT的数字图像水印-Matlab use the program to achieve the DWT-based Digital Image Watermarking
Date : 2025-12-23 Size : 857kb User : yinkexin
[2D Graphic] dct DL : 0: 用DCT变换对图像进行压缩，并计算了MSE-DCT
Date : 2025-12-23 Size : 1kb User : 骨头鱼
[2D Graphic] embed DL : 0: 自己写的基于DCT和Logistic映射的脆弱水印算法嵌入算法-Write your own based on the DCT and the Logistic map fragile watermarking embedding algorithm
Date : 2025-12-23 Size : 1kb User : 刘乃成
[2D Graphic] 9 DL : 0: open CV 环境下对DCT的使用，可以使用-using openCV to make the anaysis of DCT,easy to use
Date : 2025-12-23 Size : 2.45mb User : 许佳炜
[2D Graphic] Final_28Nov DL : 0: 2D-DCT 压缩图像后，通过QPSK,AWGN信道编码传输后，IDCT解压缩回原始图像，适用于任何图像-Using DCT to compress the orginal image, I use zigzag program, quantization, dct compression, then change the vector to bineary bit to pass through the QPSK channel. And from the binary array, I use IDCT to reconstructe the orignial image. working perfectly.
Date : 2025-12-23 Size : 3.85mb User : Jackie
[2D Graphic] DCT DL : 0: 离散余弦算法，DCT 可以打开pic格式文件-Discrete cosine algorithm, DCT can open the pic format file
Date : 2025-12-23 Size : 217kb User : allen
[2D Graphic] work DL : 0: 在DCT域进行图像检索，分别采取了对DCT块的边缘类型提取以及纹理特征提取两个方法-Image Retrieval in DCT domain, DCT blocks were taken on the edge of the type and texture feature extraction method of extracting the two
Date : 2025-12-23 Size : 877kb User : liulu
[2D Graphic] FreqCalculate DL : 0: 各种变换：// FFT() - 一维快速付立叶变换 // IFFT() - 一维快速付立叶逆变换 // Fourier() - 二维快速傅立叶变换 // IFourier() - 二维快速傅立叶逆变换 // DCT() - 一维快速离散余弦变换 // IDCT() - 一维快速离散余弦逆变换 // FreqDCT() - 二维快速离散余弦变换 // IFreqDCT() - 二维快速离散余弦逆变换，图象的二维离散小波变换-Various transformations:// FFT ()- one-dimensional Fast Fourier Transform// IFFT ()- one-dimensional inverse fast Fourier transform// Fourier ()- two-dimensional fast Fourier transform// IFourier ()- D Inverse Fast Fourier Transform// DCT ()- one-dimensional fast discrete cosine transform// IDCT ()- Fast one-dimensional inverse discrete cosine transform// FreqDCT ()- two-dimensional fast discrete cosine transform// IFreqDCT ()- two-dimensional fast inverse discrete cosine transform, discrete wavelet transform two-dimensional image
Date : 2025-12-23 Size : 6kb User : lcy
[2D Graphic] DCT DL : 0: DCT c++ source file name DCT.cpp (DCT, Fast DCT, chenDCT)
Date : 2025-12-23 Size : 7.6mb User : petrus
[2D Graphic] DCT DL : 0: 多媒体编码，DCT离散余弦变换，CSharp版，Zig-Zag扫描。-This is multimedia encode program--DCT sosine change,programed by CSharp.
Date : 2025-12-23 Size : 30kb User : zheng

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