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EDLines 快速直线检测算子
EDLines是一种快速直线检测算子,2012年在ICCV上提出,也是目前处理直线检测最快的算法之一,该算法包含三个步骤:(1)边缘提取:利用Edge Drawing (ED)算法[28,29]从灰度图像中提取边缘片段;(2)线段检测:利用最小二乘法提取直线段;(3)线段确认:遵循Helmholtz定律,从已提取的直线段中摒弃虚假线段。EDLines算法的优越性得益于Edge Drawing (ED)算法能够从灰度图像中准确、快速、稳定地提取出光滑、完整的边缘片段。Edge Drawing (ED)算法包含以下步骤:
(1)采用size=5*5,σ=1的高斯核对灰度图像进行平滑滤波,去除噪声;
(2)采用一种常用的梯度算子,如Prewitt、Sobel或Scharr等计算平滑后图像中每个像素点的梯度幅度和梯度方向;
(3)将梯度图中邻域内幅度最大的像素点标记为锚点,这些锚点成为图像边缘点(edge elements)的概率很大;
(4)将相邻的锚点连接成边缘线。从一个锚点起始,ED利用相邻像素的梯度幅度和方向在梯度为最大值的锚点之间游走。
(Edge Drawing (ED) is our recently-proposed, novel, fast edge detection algorithm. What makes ED stand out
the existing edge detectors, e.g., Canny, is the following: While the other edge detectors give out a binary
edge image as output, where the etected edge pixels are usually independent, discontinuous entities ED produces a
set of edge segments, which are clean, contiguous, i.e., connected, chains of edge pixels. Thus, while the output of
the other edge detectors requires urther processing to generate potential object boundaries, which may not even be
possible or result in inaccuracies ED not only produces perfectly connected object boundaries by default, but it also achieves this in blazing speed compared to other edge detector.)
- 2021-03-22 16:29:16下载
- 积分:1
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32606208arnold~DFT
基于dft的数字水印算法,希望对大家有用(this is good)
- 2012-12-18 11:07:05下载
- 积分:1
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morphology-enhance
新的形态学图像增强,采用多尺度形态学增强算法,对图像进行增强(morphology image enhance )
- 2011-09-19 19:27:50下载
- 积分:1
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ex26aview1
基于最小二乘法的相位解缠VC++算法
(least squares method based on the VC Phase Unwrapping Algorithms)
- 2020-06-28 19:00:01下载
- 积分:1
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munnao_V8.1
是国外的成品模型,是小学期课程设计的题目,实现六自由度运动学逆解算法。( Foreign model is finished, Is the topic of the elementary school stage curriculum design, Six degrees of freedom to achieve inverse kinematics algorithm.)
- 2016-11-23 23:59:09下载
- 积分:1
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zishiyingxijiezengqiangrgb
细节增强的直方图均衡法,在增强图像对比度的同时还能保留细节细心,避免了细节吞噬现象(Detail enhancement, histogram equalization, but also retained the same time enhance the image contrast details carefully, to avoid the details of phagocytosis)
- 2021-04-29 12:08:43下载
- 积分:1
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frft_candon
离散分数阶傅立叶变换,算法参考
C. Candan, M.A. Kutay, and H.M. Ozaktas.
The discrete Fractional Fourier Transform.
IEEE Trans. Sig. Proc., 48:1329--1337, 2000
(Discrete fractional Fourier transform algorithm reference C. Candan, MA Kutay, and HM Ozaktas. The discrete Fractional Fourier Transform. IEEE Trans. Sig. Proc., 48:1329- 1337, 2000)
- 2013-10-23 18:27:29下载
- 积分:1
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matlab函数 localMaximum
matlab函数,将多维矩阵的极值找出并定位,图像处理经常用到,很简单很好用(matlab function, multi-dimensional matrix to identify and locate the extreme, often used in image processing, it is very simple to use)
- 2020-06-28 09:40:02下载
- 积分:1
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HoughMFC
用OpenCV进行图像处理与工程开发的一个入门示例程序——Hough变换,效果不错(using OpenCV for image processing and development of a project portal sample program-- Hough Transform good results!)
- 2006-11-03 21:15:57下载
- 积分:1
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demo_MLS-My
用matlab对点云数据进行曲面分析,对三维点云配准算法有很大的改进作用。(Using matlab for point cloud data for surface analysis, the three-dimensional point cloud registration algorithm has greatly improved effect.)
- 2013-06-03 18:18:56下载
- 积分:1