搜索资源列表
DCT(sse2)
- 用SSE2汇报语言实现的H.264视频编码标准中的DCT变换。-using SSE2 reporting language of H.264 video coding standard of DCT.
LDPC-Video-DCT-VS-2005
- LDPC码的实现,包括编码器和解码器,使用了DCT.
dct.rar
- 已知两个不同图像块亮度数据如下： （1）分析DCT原理，采用DCT方法，编程并计算相应的DCT系数，分析系数分布特点。 （2）依据视觉特性分析量化表步长的分布特点，完成DCT系数量化。 （3）采用Z形扫描，实现输出数据的统计编码，形成Video stream。 （4）采用IDCT重建图像亮度数据，计算SAD大小，分析产生误差的原因及采用DCT进行数据压缩的原理。（ ） （5）分别利用左上角1、3、6个系数重建图像，计算相应的SAD，并由
DCT
- 用于视频图像编码的8×8DCT变换，可用于MPEG4.H263等VHDL编程-For video images encoded 8 × 8DCT transform, can be used to MPEG4.H263 such as VHDL Programming
DCT
- 视频处理中经常需要进行DCT变换，这是本人自己编写的、可以对图像样点进行一维和二维的DCT变换-Video processing often require DCT transform, which is I have written, you can kind of image points of one-dimensional and two-dimensional DCT transform
MPGextract
- 一个mpg压缩的水印提取程序,考虑到了几种压缩格式,并基于此提出DCT频率域上的水印提取.对学习视频水印的人有help-Mpg compressed a watermark extraction procedure, taking into account several types of compression formats, and based on this proposed DCT frequency domain watermark extraction. For learning
DCT
- 利用原本的256*256影像矩陣 計算出DCT矩陣-Use of the original 256* 256 video matrix to calculate DCT matrix
dct
- 实现图像压缩中的DCT变换，尤其是对于H.264视频标准中的DCT变换。-The realization of image compression in DCT transformation, especially for H.264 video standard DCT transform.
final
- H.264视频压缩代码中用线形汇编改写的dct、idct和quant\iquant部分-H.264 video compression using linear compilation of code to rewrite the dct, idct and part quantiquant
11111111111456
- 为保证网络信息传输的安全性,提出一种视频图像加密方法。该方法引入混沌系统中的Logistic映射和 Baker映射,结合H·264视频压缩编码特点,利用Baker映射对DCT (Discrete Cosine Transform)变换量化后 的块进行位置置乱, -In order to ensure the safety of information transmission network, and a video image encryption method. This met
resize
- 在DCT域中，通过裁减高频分量，或者增加高频分量的方式，对图像视频序列的尺寸进行上/下变换，变换过程中其他的低频DCT系数也要做相应的调整，否则处理后图像亮度会与原图不一致-resizing the video/image in dct domain .Adding or removing the high frequency components will realize the up-resizing or down-resizing. extra attention need to on
3D-DCTTransform
- 三维DCT变换是在空间信息上增加了一维的时间维度，对视频系列直接进行压缩-Three-dimensional DCT transform information in the space are added to one-dimensional time dimensions of the video series for direct compression
DCTvideowatermark
- DCT based video watermarking using pseudo random factor
WatermarkingofImagesandVideo
- Very thorough discussion of Data Hiding / Steganography / Watermarking of video with DCT-Very thorough discussion of Data Hiding/Steganography/Watermarking of video with DCT
temporal_compr
- The following files give basic informations regarding DCT,JPEG,VIDEO and temporal compression schemes
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
A.Blind.MPEG-2.Video.Watermarking.Robust.to.Regula
- Abstract—Based on the observation that low-frequency DCT coefficients of an image are less affected by geometric processing, we propose a new blind MPEG-2 video watermarking algorithm robust to camcorder recording. Both the embedding and extr
pudn2
- DCT变换在图像压缩中的实验 对视频的参考帧 和目标帧进行压缩的实验-DCT transform in image compression experiments on the video frames of reference frame and target compression experiments
LDPC-Video-DCT---VS-2005
- 分布式编码，来自Burckly大学，打开后经过对源文件的修改可以直接运行-distribution video coding
DCT水印
- 水印,旨在保护数字资源的版权信息，保障数字媒体内容的安全性，解决网络上的侵权问题，数字水印技术应运而生。(watermarking,With the rapid development of information technology, global networking, the emergence of e-commerce and a large number of commercial multimedia services, the copyright protection of d