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dddddd
- :数字水印技术在数字产品的版权保护中起着非常重要的作用。概括了数字水印技术的现状及其基本原理,并 分析了变换域数字水印算法的优势,详细阐述了DCT 水印嵌入和提取算法的原理和步骤。最后在Matlab 平台下对DCT 数 字水印算法进行了仿真,仿真结果证实了DCT 算法的强健性和鲁棒性。-: digital watermarking technology in the digital copyright protection products played a very important
Brief-instructions-of-JPEG
- 里面是JPEG的标准变换过程,含有离散余弦变换,哈弗曼编码和行程编码-Inside the JPEG standard transform, DCT, Hafu Man coding, run length encoding
离散余弦变换(DCT)
- 离散余弦变换(DCT)及其C++实现 定义:离散余弦是一种基于实数的正交变换 基本算法 快速算法 程序说明
zongjie
- 各种视频水印技术的总结,包括小波变换,DCT变换,混沌算法等。-Summary of the various video watermarking technology, including wavelet transform, DCT, chaos algorithm.
matlab-DCT-watermark
- 基于离散余弦变换的数字水印嵌入以及实现代码-Embedded watermarking based on discrete cosine transform and implementation code
DCTprocessing
- DCT 变换,包括实验图片,可直接实现DCT变换-DCT transform, including experiment picture. the soft can complete directly DCT transform
压缩感知
- 本文分别以稀疏基有离散余弦变换基(DCT)和快速傅立叶变换基(FFT)做为稀疏基,高斯随机矩阵、部分哈达玛矩阵为测量矩阵,L1范数、正交匹配追踪算法(OMP)为重建算法进行压缩感知算法实现。(In this paper, DCT and FFT are used as sparse basis, Gauss random matrix and partial Hadamard matrix are used as measurement matrix, L1 norm and OMP are u