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DCT

于 2010-06-03 发布 文件大小:448KB
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代码说明:

  基于离散余弦变换的数字水印,包括水印的嵌入和提取以及常间的各种水印攻击(Discrete cosine transform based on digital watermarking, including the watermark embedding and extraction, as well as between the various watermark attacks often)

文件列表:

DCT



...\mark.bmp
...\NC.m,576,2010-05-09
...\PSNR.m,964,2010-05-11

...\withmark.bmp,148534,2010-06-02
...\zongchengxu.m,4150,2010-05-11

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    常规的中值滤波器,在噪声的密度不是很大的情况下效果不错。但是当概率出现的概率较高时,常规的中值滤波处理后,仍然具有噪声点,并丢失了细节和边缘,效果不是很好。 自适应中值滤波器可以尽可能的保护图像中细节信息,避免图像边缘的细化或者粗化。(The conventional median filter works well when the noise density is not very large. However, when the probability of probability is high, the conventional median filter still has noise points, and the details and edges are missing. The result is not very good. The adaptive median filter can protect details in the image as far as possible and avoid thinning or coarsening of the image edges.)
    2018-05-28 11:29:19下载
    积分:1
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    可以自行选择将图片放大或缩小到一定的倍数。(Can select the picture to zoom in or out to a certain multiple of.)
    2013-03-23 11:38:20下载
    积分:1
  • WPSNR
    能计算一幅噪声图像的加权峰值信噪比,以评价各种图像去噪方法的效果(Can calculate an image of the weighted noise PSNR to evaluate the effect of image denoising methods)
    2008-04-25 17:07:40下载
    积分:1
  • renyandingweiyurenlianjiance
    说明:  这是一个经过调试过的人眼定位和人脸检测算法的代码。(This is a debug-off position of human eyes and human face detection algorithm code.)
    2021-03-17 16:49:21下载
    积分:1
  • CGAL-4.5
    CGAL,Computational Geometry Algorithms Library,计算几何算法库,设计目标是,以C++库的形式,提供方便,高效,可靠的几何算法。CGAL可用于各种需要几何计算的领域,如计算机图形学,科学可视化,计算机辅助设计和建模,地理信息系统,分子生物学,医学成像,机器人运动规划,网格生成,数值方法等等。    计算几何算法库(CGAL),提供计算几何相关的数据结构和算法,诸如三角剖分(2D约束三角剖分及二维和三维Delaunay三角剖分),Voronoi图(二维和三维的点,2D加权Voronoi图,分割Voronoi图等),多边形(布尔操作,偏置),多面体(布尔运算),曲线整理及其应用,网格生成(二维Delaunay网格生成和三维表面和体积网格生成等),几何处理(表面网格简化,细分和参数化等),凸壳算法(2D,3D和dD),搜索结构(近邻搜索,kd树等),插值,形状分析,拟合,距离等。(The goal of the CGAL Open Source Project is to provide easy access to efficient and reliable geometric algorithms in the form of a C++ library. CGAL is used in various areas needing geometric computation, such as: computer graphics, scientific visualization, computer aided design and modeling, geographic information systems, molecular biology, medical imaging, robotics and motion planning, mesh generation, numerical methods... More on the projects using CGAL web page. The Computational Geometry Algorithms Library (CGAL), offers data structures and algorithms like triangulations (2D constrained triangulations, and Delaunay triangulations and periodic triangulations in 2D and 3D), Voronoi diagrams (for 2D and 3D points, 2D additively weighted Voronoi diagrams, and segment Voronoi diagrams), polygons (Boolean operations, offsets, straight skeleton), polyhedra (Boolean operations), arrangements of curves and their applications (2D and 3D envelopes, Minkowski sums), mesh generation (2D Del)
    2014-12-11 14:45:21下载
    积分:1
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    2011-05-11 22:02:45下载
    积分:1
  • 135
    matlab程序,图像应用处理,可实现散焦模糊篡改图像的定位和分离,实现模糊图像真实性的检测(matlab program, image processing applications can be realized defocus blurred image tampering localization and separation, to achieve authenticity blurred image detection)
    2013-05-24 11:48:51下载
    积分:1
  • Phase_unrapping_using_Graph_cuts
    用Graph cuts 来解决磁共振图像的 phase unwrapping。(Graph cuts used to solve the magnetic resonance images of the phase unwrapping.)
    2008-03-12 15:21:43下载
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    C#模拟播放连续的图片为GIF动画,模拟出播放GIF的动画效果,在Debug/bin目录下,有很多的图像文件,有VS的可重新修改源码,适合学习,源码简单。(C# analog playback consecutive pictures as an animated GIF, animated GIF to simulate the effect of playing in Debug/bin directory, there are a lot of image files, there VS can re-edit the source code, suitable for learning, simple source.)
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    叠加平均去噪过程的实现,信号产生,加噪,去噪效果的显示(Average denoising, signal generation, noise addition, display the denoising effects)
    2013-05-20 16:13:15下载
    积分:1
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