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MeFrm
说明: 傅立叶变换在图像处理中的重要作用:
(A) 图像增强与图像去噪
绝大部分噪音都是图像的高频分量,通过低通滤波器来滤除高频噪声;边缘也是图像的高频分量,可以通过添加高频分量来增强原始图像的边缘;
(B) 图像分割与边缘检测
提取图像高频分量
(C) 图像特征提取
形状特征:傅里叶描述子
纹理特征:直接通过傅里叶系数来计算纹理特征
其他特征:将提取的特征值进行傅里叶变换来使特征具有平移、伸缩、旋转不变性
(D ) 图像压缩
可以直接通过傅里叶系数来压缩数据;常用的离散余弦变换是傅立叶变换的实变换;
(Fourier transform in the important role of image processing:
(A) image enhancement and image denoising
Most of all images of high frequency noise by low pass filter to filter out high frequency noise edge is the image of the high frequency components can be enhanced by adding high frequency components to the edge of the original image
(B) Image segmentation and edge detection
High frequency components extracted image
(C) image feature extraction
Shape features: Fourier descriptors
Texture: directly through the Fourier coefficients to calculate the texture features
Other features: The characteristic value extracted by Fourier transform to the characteristics of translation, scaling, rotation invariance
(D) image compression
Fourier coefficients can be directly compressed data commonly used discrete cosine transform is the Fourier transform of the real transformation
朗读显示对应的拉丁字符的拼音)
- 2011-03-28 19:06:27下载
- 积分:1
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Relative-orientation
摄影测量学 通过迭代法求解五个相对定向元素(Relative orientation)
- 2014-10-09 18:08:53下载
- 积分:1
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089
说明: 图片马赛克效果图片马赛克效果图片图片马赛克效果马赛克效果(Photo mosaic picture image photo mosaic mosaic mosaic)
- 2011-04-05 22:18:45下载
- 积分:1
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ImageHistogramEqualization
说明: vc代码,用于图像直方图均衡(以原始girl图像为测试图像) (vc code, for image histogram equalization (in the original girl image for the test images))
- 2010-03-28 09:42:18下载
- 积分:1
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Normal_estimation
基于PCL的估算散乱点云的法矢量,并进行颜色渲染显示(estimation of normal vectors for point clouds and color rendering display based on PCL)
- 2018-03-16 21:10:32下载
- 积分:1
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kz
说明: fluent udf dpm particle diamter
- 2011-04-09 02:54:56下载
- 积分:1
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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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VCDigitalImageProcessing01
说明: VC++数字图像处理典型算法及实现 01 源程序(VC++ Digital Image Processing Algorithm and Implementation of a typical 01)
- 2011-04-02 17:41:54下载
- 积分:1
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PrimeBackgroundDetection
基于主像素的背景建模方法。该方法对密集目标检测效果较好。(Based on the background of the main pixel modeling method. The method of intensive better target detection.)
- 2008-02-25 16:09:20下载
- 积分:1
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SIRC_convert_MLC_C3
说明: SAR影像单视数据转为多视数据,数据间相互转化,快捷处理SAR数据(Single-look SAR image data into a more visual data, data inter-conversion, fast processing SAR data)
- 2008-09-19 20:29:08下载
- 积分:1