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- color image watermarking using DCT and DWT
DCT
- 利用快速傅立叶算法，实现快速离散余弦变换及其逆变换-Using fast Fourier algorithm for fast discrete cosine transform and its inverse transform
ar_dct_lda
- AR人脸库进行DCT变换，然后使用Fisher discriminant analysis 进行特征提取，使用cos分类器进行人脸分类。-AR Face Database for DCT transform, and then use the Fisher discriminant analysis feature extraction, using cos classifier for human face classification.
dct2
- 本代码是利用matlab实现dct变换，作用后效果可见 -This code is to use matlab to achieve dct transform, the role can be seen after the effect
11912927wavelet_transf
- 本实验主要利用MATLAB程序进行离散余弦变换（DCT）压缩和行程编码（Run Length Encoding， RLE）。-In this study, MATLAB programs using mainly discrete cosine transform (DCT) compression and run-length encoded (Run Length Encoding, RLE).
DPCM_DCT_m
- Differential Pulse Code Modulation (DPCM) and Discrete Cosine Transform (DCT) coding techniques in MATALB
IFI_DB
- face recognition using dct and neural networks
RLC
- This algorithm helps to compress the images using DCT-Run length coding technic.
DCT
- 离散傅里叶变换程序源码，matlab主程序，函数-Discrete Fourier transform program source code, matlab main program, function
dct2_embed
- 数字水印嵌入算法，利用离散余弦变换的（dct）算法，对以往的算法有所改进-Digital watermark embedding algorithm, using discrete cosine transform (dct) algorithm, an improvement on previous algorithms
1
- 基于DCT的数字水印matlab源码，对于初学者很有用-DCT-based digital watermarking matlab source code, useful for beginners
matlab
- jpeg to data matrix in r,g,b
watermark
- 基于DCT变换的数字水印实现，实现可数字水印的嵌入和提取，是MATLAB7.0环境下开发的- Itisa
zig
- 输入2维数组和行数列数，进行之字形重新排列，输出1维数组，比如图像的DCT变换系数-DCT，zigzag
dctannprotected
- High information redundancy and correlation in face images result in efficiencies when such images are used directly for recognition. In this paper, discrete cosine transforms are used to reduce image information redundancy because only a subset of t
DCT_SVD
- 本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。-This paper presents an original video in the DCT (Discrete Cosine
yansuoDCT
- 适用于图像压缩的二维8×+8+DCT查表快速算法研究，纪绣花，张彩明-Applicable to two-dimensional image compression 8 ×+8+ DCT fast algorithm for look-up table, Ji embroidery, Cai-Ming Zhang
itu-t81[1]
- Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding &
yousun
- 基于dct变换的水印算法，并进行有损压缩情形下的水印嵌入和提取-Dct transform based watermarking algorithm, and for lossy compression case the watermark embedding and extracting
work
- 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