Description: 彩色图像的篡改检测及自恢复算法赵春晖,孙建军,朱海峰(哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001)摘要:数字水印是图像认证的有效手段之一.利用小波变换提出一种计算简单的彩色图像水印算法,将一个图像的主要内容嵌入该图像自身之中,用均值量化的方法在亮度信号中嵌入水印,实现篡改检测和定位篡改区域;用多余的色度空间嵌入亮度信号和色度信号,用于恢复被篡改的图像内容.该算法可以获取较高的峰值信噪比,具有很好的鲁棒性.实验结果表明,该算法对删除、替换等恶意图像篡改具有良好的检测、定位和自修复能力.-color image tamper detection and self-recovery algorithm Zhao Chunhui, Sun Jianjun, Zhu Haifeng (Harbin Engineering University, Information and Communication Engineering Institute, Harbin, Heilongjiang 150001) Abstract : digital watermark image authentication is one of the effective means. Using wavelet transform A simple calculation of the color image watermarking algorithm, an image of the main elements embedded in the image itself, and use of quantitative methods mean the luminance signal embedded watermark, achieve tamper detection and localization tampering with the region; use of surplus space embedded color luminance signals and chrominance signals, for the restoration of tampering with the image content. The algorithm can generate a higher signal-to-noise ratio of the peak value, h Platform: |
Size: 237568 |
Author:ghostsx |
Hits:
Description: 此程序实现的是对一幅图像进行卡尔曼滤波实现多天线时变信道下基于卡尔曼滤波跟踪的数字图像通信系统仿真-Realize this procedure is the image of a Kalman filter to achieve multi-antenna time-varying channel tracking based on Kalman filtering of digital image communication system simulation Platform: |
Size: 46080 |
Author:袁辉 |
Hits:
Description: 基于matlab的图像增强技术分析与实现,基于Matlab的图像增强技术研究,基于Matlab的现代通信系统的仿真应用,基于巴特沃斯低通滤波器的图像增强-Matlab image enhancement based on technical analysis and implementation, based on Matlab' s image enhancement technology research, based on the Matlab simulation of modern communication systems applications, based on the Butterworth low-pass filter the image enhancement Platform: |
Size: 2232320 |
Author:jojo |
Hits:
Description: A paper that I presented on Supervisory Control and Data Acquisition (SCADA) won the second prize at the symposium conducted by the Electrical and Electronics Engineering department of the SRM University. Other topics on which I presented papers were Performance enhancement of wireless sensor networks using directional antennas, Smart card application and wireless communication. Also my research idea titled “Wavelet Based Image Compression Using SPIHT Algorithm “secured third prize in a technical festival. Platform: |
Size: 522240 |
Author:ajeeth |
Hits:
Description: A paper that I presented on Supervisory Control and Data Acquisition (SCADA) won the second prize at the symposium conducted by the Electrical and Electronics Engineering department of the SRM University. Other topics on which I presented papers were Performance enhancement of wireless sensor networks using directional antennas, Smart card application and wireless communication. Also my research idea titled “Wavelet Based Image Compression Using SPIHT Algorithm “secured third prize in a technical festival. Platform: |
Size: 20480 |
Author:ajeeth |
Hits:
Description: This source code simulates UWB based wireless Communication system which transmits color image over wireless medium.
Modulation type: Pulse position modulation
Pulse: second derivative of a Gaussian pulse Channel: AWGN
Image: lib.jpg-This source code simulates UWB based wireless Communication system which transmits color image over wireless medium.
Modulation type: Pulse position modulation
Pulse: second derivative of a Gaussian pulse Channel: AWGN
Image: lib.jpg Platform: |
Size: 83968 |
Author: |
Hits:
Description: 都是用matlab写的,复制到txt上了
(1)基于简单背景的人脸监测,针对视频,效果还不错,传的是txt,大家新建一个M文件,复制,然后把视频名与程序中的改成一致就可以了。
(2)对多椭圆的检测,非实际图像,无噪声,就是简单的椭圆,使用同上。-Are written with matlab, copy to the txt on the (1) human face based on a simple background monitoring, for video, the results were good, communication is the txt, you create a new M file, copy, and then the video name and program The change in line on it. (2) the detection of multi-elliptical, non-real image, no noise, that is a simple oval, use ibid. Platform: |
Size: 2048 |
Author:sss |
Hits:
Description: 通信系统仿真的星座图的画法问题,qpsk的仿真,图像很准确-Communication System Simulation constellation of painting issues, qpsk simulation, the image is very accurate and Platform: |
Size: 1024 |
Author:刘德华 |
Hits:
Description: 用matlab实现了图像通信中的全搜索算法与三步搜索算法这两种运动估值算法,给出了运动矢量图,对两种方法的计算复杂度和搜索性能进行了客观的比较。-Matlab image communication achieved by the full search algorithm in the three-step search algorithm with the two motion estimation algorithms, given the movement vector, the computational complexity of both methods and the search performance of objective comparison. Platform: |
Size: 442368 |
Author:朱洁丽 |
Hits:
Description: 用matlab实现了图像通信中的方块编码,并针对不同的块大小与压缩比进行了比较。-Matlab realize image communication with the block coding, and for different block sizes and compression ratios are compared. Platform: |
Size: 287744 |
Author:朱洁丽 |
Hits:
Description: 图像重建程序包含了图像重建的各种不同算法,调经均已通过,方便大家学习、交流!-Image reconstruction program includes a variety of different image reconstruction algorithms have been through menstruation, facilitate learning, communication! Platform: |
Size: 6672384 |
Author:孙天号 |
Hits:
Description: DICOM是各种数字化影像设备的图像格式和数据传输标准。许多医学图像都采用了DICOM标准。DICOM医学图像的编
码和显示是医学图像研究的基础。该文介绍了DICOM的相关概念和医学图像的组织结构。列出了数据集进行编解码的算法并用
Matlab和VC++编程实现DICOM医学图像的信息读取和显示。-Abstract:Dicom(Digital Imaging and Communications in Medicine)is the international standard of medical images archiving and com-
munication.It is built by NEMA and ACR..It prescribes the uniform exchange format in Picture Archiving and Communication Systems.It
provides the interface standard and communication protocol for different medical imaging equipments and their users.The displaying of Di-
com medical image and encoding is the basis of medical image technology study.In this paper,the organization structure of Dcm file and
displaying method of Dicom medical image is introduced.And describe the realization process of information read.The displaying is real-
ized by Matlab and VC++programming. Platform: |
Size: 164864 |
Author:xiaoquan |
Hits:
Description: MATLAB与opencv的通讯 包括读取视频 图像处理等-MATLAB and opencv communication include read video and image processing Platform: |
Size: 279552 |
Author:陈庆亚 |
Hits:
Description: Matlab Code for:
Adaptive post-filtering for reducing blocking and ringing artifacts in low bit-rate video coding
in Signal Processing: Image Communication 17 (2002) 525–535 Platform: |
Size: 2048 |
Author:EhsanNadernejad |
Hits:
Description: 通过混沌算法对图像和单一信号进行加密和解密,混沌算法在保密通信中应用-By chaos algorithm for encryption and decryption of the image and a single signal, chaos algorithm application in secure communication Platform: |
Size: 4096 |
Author:yy |
Hits:
Description: 《MATLAB语言》是一门实践性很强的专业基础课程。对电子信息类专业的学生而言,通过上机实验,可以使学生掌握MATLAB语言的编程基础与技巧,为后续的《信号与系统》、《数字信号处理》、《通信原理》、《数字图像处理》等专业课程提供数值计算和可视化编程工具。- MATLAB language is a practical and very strong professional basic course. For electronic information majors, through computer experiments, students can master the programming of MATLAB language and skills, which provide a number of computing and visual programming tools for the follow-up of signal and system , digital signal processing , communication principle , digital image processing . Platform: |
Size: 500736 |
Author:hym |
Hits:
Description: 这是在MATLAB环境下的一个进行图像连通,识别,提取质心的程序。-This is an image communication, recognition in a MATLAB environment, extracting the centroid of the program. Platform: |
Size: 3072 |
Author:李亚伟 |
Hits: