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实现对视频图像的游程编码和解码。过程包括:二维DCT变换、量化及游程编码。
一般来讲对于视频的I帧进行恢复,其信噪比可达到38DB以上。-Implementation of the video image encoding and decoding run-length. Process includes: two-dimensional DCT transform, quantization and run-length encoding. In general, I frame for
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水印的嵌入与提取,用DCT变换的算法进行实现,嵌入二值灰度图像-Watermark embedding and extraction algorithm using DCT transform implementation, the embedded binary Gray image
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基于图像预处理的DCT数字水印算法及其MATLAB实现,作者:QQ 64134703 ,电子毕业设计,欢迎咨询
-DCT-based image preprocessing for digital watermarking algorithm and MATLAB implementation of: QQ 64134703, e-graduate design, please consult
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图像的DCT压缩(matlab7.0实现),包含了两个源码文件,以及运行截图,编译后可直接运行。-DCT image compression (matlab7.0 implementation), consists of two source files, and run shots, can be compiled to run directly.
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无限长的序列也往往可以用有限长序列来逼近。对于有限长的序列我们可以使用离散傅立叶变换(DFT)。DFT是对序列傅立叶变换的等距采样。是序列傅立叶变换的等距采样。
本源码是对DCT、DFT、FFT的matlab实现-Infinitely long sequence is often a long sequence with limited approximation. For the finite length of the sequence we can use the discrete F
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c语言环境开发的用于对指定BMP格式图像的DCT转换的实现-c language environment for the development of BMP format images to the specified implementation of DCT transform
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基于dct的图像转换,及fdct,以及idct的实现源代码,有需要的可以拿去-Dct-based image conversion, and fdct, and idct implementation source code, we need to take it
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基于jpeg的DCT变换,详述算法的流程和实现-Jpeg of the DCT-based transform, process and implementation details of the algorithm
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c++下的dct/lsb水印设计与实现,做图像隐藏时用的-c++ under the dct/lsb watermark design and implementation, making use of hidden images
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变换编码的matlab实现,主要有DCT编码等-Matlab implementation Transform Coding
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基于DCT系数的自适应视频水印算法与实现与应用-DCT coefficients based Adaptive Video Watermarking Algorithm and Implementation
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VC++实现的DCT、IDCT图像变换与反变换,分为普通和快速模式-VC++ implementation of the DCT, IDCT transform and inverse transform the image is divided into normal and fast mode
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通过8*8点图像的DCT变换时间,比较W.Chen的快速算法和传统算法的运算效率, 显示变换前后的系数矩阵,代码较短,易懂,适于学生用,用vs2008很好的实现。-vc++ implementation of w.chen fast DCT computational algorthm
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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。
-DCT-based watermark image watermarking algorithm source code (Matlab implementation). Extract the file to the MATLAB installation directory under the work folder, and the
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This program has implementation of DCT image compression in matlab. Hope it helps............!
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This file contains a floating-point implementation of the forward DCT Discrete Cosine Transform.
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This file contains a fast, not so accurate integer implementation of the forward DCT (Discrete Cosine Transform) for Linux.
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This file contains a slow-but-accurate integer implementation of the forward DCT (Discrete Cosine Transform) for Linux.
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This file contains a floating-point implementation of the forward DCT (Discrete Cosine Transform) for Linux.
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dct隐写技术matlab实现资料。算法原理:通过在一个图像块中调整两个DCT系数的相对大小,隐藏秘密信息。
将载体图像分为8×8的块,做二维DCT变换
用来表示选中的两个系数的坐标对于第i bit秘密信息
if(要隐藏信息‘1’)
make
else
make
逆DCT变换,还原图像
-dct steganography matlab implementation information. Algorithm principle: an image bl
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