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Image-processing
基于MATLAB的系统分析与设计:图像处理(System Analysis and Design: Image processing based on MATLAB)
- 2013-01-23 12:12:19下载
- 积分:1
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BIAODING
RAC法标定程序,适用于单目摄像机的线结构光的标定(The RAC calibration method procedure applies to line structured light calibration)
- 2012-10-11 21:38:13下载
- 积分:1
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Area
matlab使用regionprops求面积,找到连通域(Matlab uses regionprops to calculate area and find connected region)
- 2020-06-17 08:00:02下载
- 积分:1
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A-Watermarking-Algorithm(MATLAB)--
盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词 数字水印盲水印关系嵌入量化嵌入离散余弦变换离散小波变换
按这篇文章的算法,自己编的matlab,没有攻击时水印提取率为1,加水印后图像PSNR有45+,。有攻击后提取率也有0.9+。(Blind watermark extraction can be fulfilled without referring to the original host image. Therefore it hasmuch
prospective applications in the fields of information hiding and copyright protection. Based on blocking Discrete Cosine
Transform (DCT) and blocking DiscreteWaveletTransform (DWT), the proposed blind watermarking algorithm uses an
embedding strategy of adaptively selecting either relationship embedding or quantization embedding. The relationship em-
bedding comes from the observation thatboth themagnitudes of coefficients concerned in the relationship usually have thesame change trend when the image is attacked. This strategy remarkably improves the robustness ofwatermark extraction.In addition, dithermodulation is used in quantization embedding, bywhich the tradeoff between transparency and robus-tness ofwatermarking can be easily adjusted. Simulation results show that the algorithm is fairly robust against the attacks such as noise, filtering, compression, and contrast )
- 2013-04-14 16:15:47下载
- 积分:1
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ivt
说明: 基于粒子滤波的强大的跟踪算法,可以在背景变化情况子实现可靠的实时跟踪,并且配有相应的论文(particle filter)
- 2011-02-20 15:41:08下载
- 积分:1
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Eyes
图像处理实习(针对遥感影像),包含许多经典的图像处理功能,比如多种植被指数计算、小波变换、镶嵌、图像分类等(Image processing internship (for remote sensing images), contains many classic image processing functions, such as a variety of vegetation indices, wavelet transform, mosaic, image classification, etc.)
- 2014-03-27 22:36:07下载
- 积分:1
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image fusion matlab code
说明: 基于小波变化的图像融合算法,matlab实现(Image fusion algorithm based on wavelet transform, realized by MATLAB)
- 2020-04-23 18:18:25下载
- 积分:1
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Hough-matalab
基于Hough变换的圆检测 -matalab程序,能有效地检测圆曲线,在matalab下运行(Based on the Hough transform circle detection-matalab procedures, can effectively detect circular curve, in the run matalab)
- 2007-11-24 18:06:53下载
- 积分:1
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pointCloud2mesh
由点云数据(point cloud)生成网格(mesh)的matlab实现(Converts a pointcloud (unordered vertices) to a mesh of triangles by connecting the nearest 3 points and calculates the normal of each vertex and triangle. Also finds the neighboring triangles of each vertex and the neighboring triangles of each triangle.
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- 2012-09-06 21:43:34下载
- 积分:1
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lpfilter
本matlab程序可生成低通滤波器,数字图像处理(The matlab program can generate low-pass filter, digital image processing)
- 2021-02-19 22:59:43下载
- 积分:1