This paper proposes a fragile watermarking method for image authentication,in the method,the original image is firstly divided into 8×8 blocks,then choose the region to be protected.
该方法首先对图像进行8×8分块,计算每一块的DCT值,然后选择所要保护的区域,确定完全属于该区域的分块,并提取这些分块的特定位置的低频分量,采用Hash函数加密生成相应的具有固定长度的数字摘要,然后选取该数字摘要的若干位作为脆弱水印,并把其隐藏到该区域其余的DCT分块中去,以实现水印检测时不需要任何额外信息,试验表明这是一种行之有效的图像鉴别方法。
Therefore content-based multimedia data authentication technique has become a research focus, within which image authentication is important and crucial.
因此基于内容的多媒体数据鉴别技术成为了一个热点研究领域,数字图像鉴别是其中一项非常重要和关键的技术。
Distinguishing Computer Graphics from Nature Image on Interpolation Algorithms
基于插值算法的真实图像与计算机生成图像鉴别
Researches on Self-Located and Recoverable Authentication Methods for Digital Images;
可定位和恢复的数字图像鉴别方法研究
Classification for Computer Graphic Images and Natural Photographs;
数码照片和计算机生成图像的图像源鉴别
Seed color detection by computer technology in rapeseed
计算机图像识别鉴定油菜种子颜色
Target Detection and Discrimination in UWB-SAR Image;
UWB-SAR图像中的目标检测与鉴别
2-Dimensional Kernel Discriminant Analysis Based on Image Sampling and Regrouping
基于图像抽样重组的2维核鉴别分析
A NOVEL APPROACH FOR DISTINGUISHING PHOTO IMAGES AND COMPUTER GRAPHICS
一种新的自然图像和计算机图形鉴别方法
Use Image Processing to Inspect Welding Spots;
基于图像处理技术的焊点缺陷提取和自动鉴别
A Research on Fingerprint Image Pre-processing and Minutiae Matching Based on Embedded Platform;
嵌入式指纹鉴别图像预处理与特征点匹配研究
Research on Paper Currency Identification Technology Based-On Magnetic Signal and Infrared Image
基于磁信号与红外图像的纸币鉴别技术研究
A New Approach to Preprocessing of Image for Auto-identification of Seal Imprint
印鉴自动识别中一种新的图像预处理方法
Blind Identification for Digital Images Based on Inconsistency of Illuminant Direction
基于光照方向不一致性的图像盲鉴别方法
New feature for vehicle target discrimination in SAR imagery
一种SAR图像车辆目标鉴别特征及其提取方法
Classification of Animal Fibers Based on Microscopic Images
基于显微图像的动物纤维鉴别技术(英文)
Seal imprint verification is an important application in the field of image processing and pattern recognition.
印鉴识别是计算机图像处理和模式识别技术的重要应用。
Identifying Natural Image and Computer Graphics Based on HMM
基于隐马尔可夫模型的自然图像和计算机图形的鉴别
A Study of Information Fusion Applied to Remote Sensing and Identity Verification Systems;
信息融合在遥感图像和身份鉴别系统中的应用研究
Discriminant Feature Extraction Algorithms for Face Images Based on "Small Sample Size" Problem;
小样本问题下人脸图像的鉴别特征抽取方法研究