-
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
-
不规则图形的填充
说明: 用VC开发的图形填充算法,简单实用,
希望对你的图形开发有所帮助,
如果有什么问题,可以与我联系(development of the VC graphics filling algorithm, simple and practical, and I hope to your graphics development will help, if any, can contact me)
- 2005-11-29 15:22:20下载
- 积分:1
-
business-card
自动匹配下拉列表框中的内容,根据所选下拉列表框的不同去加载不同的名片(Automatic matching of the drop-down list box in the content, according to the selected drop-down list box is different to load a different card
)
- 2014-07-21 11:51:22下载
- 积分:1
-
dicom(vc)
论解读DICOM医学图像文件及其显示的VC++实施方法
是一份比较新的讨论dicon的vc实现方法的文章(read DICOM medical images and documents show that the implementation of the VC is a relatively new discussion di vc con method of the article)
- 2007-06-22 00:20:44下载
- 积分:1
-
SmartLoadBmp
对图像(Bmp)的智能读入界面设计,源代码(Read image (BMP), intelligent interface design, source code)
- 2013-04-25 17:01:46下载
- 积分:1
-
txcl
说明: 实现了图像的打开功能,并能实现图像打开时的扫描,渐进,马赛克等功能(To realize the image of the open function, and can achieve image scans open, progressive, mosaic and other functions)
- 2010-04-18 22:43:57下载
- 积分:1
-
XIHUA
本程序是使用c++开发语言编写的,功能是将bmp图像进行细化处理,比如,可以将比较粗的汉字细化成较细的汉字。(This program used c++ development language, the function is to thinning BMP image . For example, it can be more crude refining the Chinese characters into a fine characters.)
- 2016-01-06 16:35:17下载
- 积分:1
-
HoleFilling
利用opencv库写的一个关于图像孔洞填补的小程序,附加了效果图片(Using the opencv library to write a small program on the filling of the hole, the additional effect of the picture)
- 2020-11-27 09:39:30下载
- 积分:1
-
boxFilter
盒状滤波器,可以用来用来对图像进行滤波,对图像的预处理(Box-shaped filter can be used for image filtering, pre-processing of the image)
- 2016-05-12 10:41:30下载
- 积分:1
-
ComputerGraphics
多边形填充 多边形裁剪 自定义多边形区域 自定义裁剪区域(Polygon fill polygon clipping custom polygon area custom crop area)
- 2012-11-14 23:04:40下载
- 积分:1