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miyao
本文提出了基于二维混沌映射的数字图像水印算法,混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数,实现了数字水印的隐蔽性、保密性和稳固性;利用二维混沌映射Arnold变换对水印信号进行置乱,不仅增强了水印信号保密性,同时有效提高了视觉上抵抗图像剪切攻击的能力。(In this paper, two-dimensional chaotic map based on digital image watermarking algorithm, Chaos with random noise and the likelihood of extreme sensitivity to initial conditions and so on. Two-dimensional chaotic map will be scrambling after the digital watermark embedded image signal of the low-frequency coefficients in wavelet domain, the realization of a digital watermark hidden, security and stability the use of two-dimensional chaotic map on Arnold transform scrambling watermark signal, not only enhances the confidentiality of the watermark signal at the same time improve the visual image shear resistance attacks.)
- 2009-06-28 10:11:45下载
- 积分:1
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Light-Spot
针对空间发光点缩成光斑图像中心的高精度提取问题,本文提出一种亚像素提取方法。该方法简历了具有高斯能量分布的空间发光点的透视投影光斑图像灰度分部数学模型,证明了空间发光点能量中心的透视投影不变性。(Light-emitting points of space shrunk to spot high-precision center of the image extraction problem, we propose a subpixel extraction method. This method resumes a space with Gaussian energy distribution points of perspective projection spot light gray segment mathematical model to prove the energy center of the space light-emitting point perspective projection invariance.)
- 2010-12-10 22:56:07下载
- 积分:1
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hesaff-master
影像仿射变换特征提取,结合 sift 等局部特征可以处理较大视角变化下的图像匹配。(This is an implementation of Hessian-Affine detector. )
- 2015-09-22 17:54:36下载
- 积分:1
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ImageRegistration
基于边缘特征的图像配准算法源码
基于边缘特征的图像配准算法是将不同时间、不同的传感器(成像设备)或不同条件下(天候、照度、摄像位置和角度等)获取的同一场景的两幅或多幅图像根据其边缘特征进行匹配、叠加的处理,最终生成一幅全景图像的方法。该方法具有抗噪性强,匹配速度快,误匹配率低,适用于多种类型的图像等优点,主要可以运用于以下领域:
(1)军事研究领域,如飞行器辅助导航系绞、武器投射系统的末制导以及寻地等应用研究;
(2)医学图像分析,如数字剪影血管造影DSA血管造影术、肿瘤检测、白内障检测、CT、MRI、 PET、 SPECT图像结构信息融合;
(3)模式识别,如特征识别、波形分析、签名证实、目标物运动跟踪、序列图像分析等;
(4)计算机视觉,可用于目标定位、自动质量控制等;
(5)遥感数据分析,多电磁波段图像信息融合,如多谱段的等场景分类、定位和识别定义好的或已知特征的场景、自然资源监控、核生长监控、市区增长检测等。
本算法实现使用VC++6.0为开发环境,目前只支持灰度图像,感兴趣的朋友可以进一步扩展。(Image registration is a fundamental problem in image processing, which is a process to match two or more images of the same scene taken at different times, from different viewpoints, or by different sensors. Image registration is an important technique for a great variety of applications such as medical image analysis, computer vision, remote image data analysis, image information fusion, and the recovery of the 3–D characteristics of a scene.)
- 2009-03-19 13:17:58下载
- 积分:1
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Digital_image_processing_frequency_domain
该数字图像处理文件有很强的修改能力,可以仔细的分析每一个频域不同条件下的实验结果分析。有很强的处理图像能力(The digital image processing of documents has a strong ability to change and be more careful analysis of each under different conditions, a frequency-domain analysis of the experimental results. Has a strong ability to deal with images)
- 2010-01-03 16:37:44下载
- 积分:1
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ElizziqunMATTd
边缘检测 的 matlab粒子群程序序源码 ,希望对你有所帮助
(Edge detection matlab particle swarm procedure sequence source, you want to help)
- 2012-07-29 23:52:42下载
- 积分:1
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GNSS-PRocess
本文介绍了一种
)’’
多系统静态基线数据处理方法!该方法使用统一的方式来处理
&’
5.)6’’
北斗
及三者融合的观测数据#这种处理方法已经实现在广州南方测绘仪器有限公司的静态后处理软件中#本文使用实际数据验
证了这种处理方法!得到了较好的结果(This article describes a ) ' multi-system static baseline data processing method! This method uses a unified way to deal & ' ' 5.) 6' ' ' Compass and three observational data fusion# This treatment method It has been achieved in the static Guangzhou South mapping Instrument Co.# post-processing software used herein, the actual data validation of this approach! Get better results)
- 2015-06-30 11:16:20下载
- 积分:1
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TemplateTran
用VC编写的一个图像处理的程序:它可以实现图像的增强,包括:图像的平滑、中值滤波、梯度锐化、拉普拉斯锐化和伪彩色编码(VC prepared by an image processing procedures : it can enhance the images, including : image smoothing, Median filtering, sharpening gradient, Laplacian sharpening and pseudo-color coding)
- 2007-04-12 10:15:19下载
- 积分:1
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shade1
检测视频中的运动目标以及阴影,并消除阴影,基于opencv,将RGB颜色空间根据一定的转换关系转换到HSV空间,最后消除阴影, 可以在vc6.0和vs2008上正常运行(Shadow detection algorithm based on HSV color space)
- 2012-08-20 21:22:09下载
- 积分:1
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SmartLoadBmp
对图像(Bmp)的智能读入界面设计,源代码(Read image (BMP), intelligent interface design, source code)
- 2013-04-25 17:01:46下载
- 积分:1