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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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calibration-toolbox-0.9
matlab上面自动实现相机校准标定的一个工具库(Matlab toolbox for multiphase calibration can realize automatic calibration)
- 2020-06-18 22:20:02下载
- 积分:1
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dct水印
通过dct的8*8块的变换量化操作结合水印生成水印图像,其中包含几种常见的攻击测试。(The program generates watermark image through DCT transform.)
- 2020-07-10 11:08:55下载
- 积分:1
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LSB-Algorithm
LSB算法实现BMP图片信息的隐藏和提取 语言:C#(LSB algorithm BMP image information hiding and extraction languages: C#)
- 2020-12-01 17:39:25下载
- 积分:1
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2011-ImageInpainting
图像修复算法 及 仿真程序代码 2011年《基于纹理特征的自适应图像修复算法》(the image inpainting algorithm and its matlab code “Adaptive Image Inpainting Algorithm Based
On the Texture Feature”
)
- 2012-02-23 19:15:14下载
- 积分:1
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watermark
图像中数字水印matlab编码,水印的嵌入提取及嵌入强度(Digital watermark image matlab coding, the embedded watermark extraction and embedding strength)
- 2008-06-16 02:21:25下载
- 积分:1
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SpectralResidual
谱残缺算法显著性检测源程序!!谱残缺算法显著性检测源程序!!(the vision of matlab of special residual of salienp)
- 2020-11-08 21:19:47下载
- 积分:1
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SAR
以MSTAR为实验数据,对SAR影像进行杂波统计分析研究。利用高斯、瑞利、对数正态、LN、gamma函数模型对其拟合,通过K-S方法检验拟合精度(The MSTAR the experimental data, statistical analysis of SAR images of clutter. Gaussian, Rayleigh, lognormal, LN, gamma function model to its fitting, fitting by means of checking the accuracy of KS)
- 2012-01-09 10:56:18下载
- 积分:1
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face2_jiance
人脸检测:可自动检测人脸,速度还可以吧!(Face Detection : can automatically detect faces and can also speed!)
- 2007-01-26 09:17:23下载
- 积分:1
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VCPP-image-processing-chapter04
VisualC++数字图像处理技术详解第2版光盘-第四章(VisualC++ digital image processing technology Detailed Version 2 CD- Chapter Four)
- 2016-04-16 13:23:00下载
- 积分:1