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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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fire
对火焰图像进行二值化 边缘检测 链码提取 并计算火焰图像的面积和周长 绝对好用!(Binarization flame image edge detection chain code extraction and absolutely easy to calculate the area and perimeter of the flame image!)
- 2013-01-05 16:08:10下载
- 积分:1
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FillRegion
填充区域图像,设置填充区域,填出图像的颜色(Filled regional images, set fill area, fill in the color of the image)
- 2009-01-18 22:45:33下载
- 积分:1
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Histogram-method
利用直方图双峰法选取适当阈值对图像进行二值化处理。此法只适用于直方图为双峰状图像。(Using the Shuangfeng method to the appropriate threshold histogram of image processing two values. This method is only applicable to the histogram of image of Shuangfeng.)
- 2015-04-14 15:56:07下载
- 积分:1
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prient
静态画图,可以改变图形边框颜色与矩形或椭圆的填充颜色(Static drawing, you can change the fill color graphics border color and rectangular or oval)
- 2012-11-22 17:26:00下载
- 积分:1
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Demo3_line-segment-detection-
直线检测 Visual C++编写 用于图像处理(line segment detection)
- 2012-06-29 16:39:16下载
- 积分:1
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lbgvq
lbg算法是一种经典的矢量量化算法,此源码为lbg算法的c语言实现。(lbg algorithm is a classic vector quantization algorithm, the algorithm lbg source for the C Language.)
- 2021-01-06 21:28:54下载
- 积分:1
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cviimage
cvi图像设计替换背景 扣图专用代码 毕业设计可用(cvi replace the background of graphic design graduate design buckle Figure specific code available)
- 2020-07-01 15:00:01下载
- 积分:1
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Seg_soble
sobel segmentation, this algorithme has a great effect for segmenting
- 2015-01-25 18:02:39下载
- 积分:1
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VCPP-image-processing-chapter06
VisualC++数字图像处理技术详解第2版光盘-第六章(VisualC++ digital image processing technology Detailed Version 2 CD- Chapter VI)
- 2016-04-16 13:34:28下载
- 积分:1