搜索资源列表
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
DCTDWT
- 关于图像除了 的 水印算法 dct 很详细 很难下载的 一篇详细论文-In addition to the watermarking algorithm on the image detail dct difficult to download a detailed paper
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
watermark
- 基于DCT的水印图像matlab代码，主要是水印嵌入和水印提取两大主要部分-DCT-based image watermarking matlab code, mainly watermark embedding and watermark extraction are two main parts
JND
- 将watson的DCT视觉模型计算出来，能够得到每个8*8块的系数的JND值- calculate watson s vision model,we can get the JND of every 8*8 s coefficients.
dip4
- 对原始灰度图像进行图像压缩，对此图进行 8×8 DCT 变换后，分别只保留 DC系数，以及保留前 4、8、16 个变换系数(DC＋AC) ，然后再分别进行 IDCT 变换 -The original gray image compression, this map for 8 × 8 DCT transform, respectively, to retain only the DC coefficient, and to retain the former 4,8,16 months tr
hidedctadv
- 基于DCT的信息隐藏算法，水印技术方面的，用matlab开发的-Information hiding algorithm based on DCT, the watermark technology, developed with matlab
DCT_watermarking_System
- A gr8 Adaptive DCT based watermarking system is implemented with a nice GUI for embedding, extraction and attacks
ziliao
- 基于DCT变换的信息隐藏(数字水印)嵌入算法的设计(Matlab-DCT-based information hiding (digital watermark) embedded in the design of algorithms (Matlab
DCT_liang
- 此代码是基于DCT的数字水印MATLAB编程，包括水印的置乱和反置乱，嵌入以及提取水印四个部分-This code is based on digital watermark DCT MATLAB programming, including the watermark scrambling scrambling and anti-, four-part watermark embedding and extraction
dctwater
- 一种基于DCT域的不可见数字水印算法，文章源于IEEExplore-PERCEPTUAL DIGITAL WATERMARK OF IMAGES USING WAVELET TRANSFORM.pdf,down loaden from IEEE xplore
blinddct
- 一种基于DCT域的全盲数字水印，文章下载于IEEE XPLORE-Based DCT domain blind watermarking, the paper available on the IEEE XPLORE
frequercemark
- 一种基于DCT变换域的数字水印技术，其中用到了伪随机数生气器技术随机产生水印信号-DCT transform domain based on digital watermarking technology, which uses a pseudo-random number of randomly generated angry watermark signal device
watermark
- 包含有DCT水印嵌入算法，DWT水印嵌入算法，以及水印攻击和性能测试程序。参考价值极大-mark