opencv中,convexhull()能够得到一系列点的凸包,比如由点组成的轮廓,通过ConvexHull函数,得到凸包。 可以用来做手势的识别。 几何图形 我们用以下的Python代码来自己绘制一张简单的多边形的图片 importcv2importnumpyasnp# 新建512*512的空白图片img = np.zeros((512,512,3), np.uint8)# 平面点集pts = np.array...
fromMyClassimport*importnumpyfrommpl_toolkits.mplot3dimportAxes3Dimportmatplotlib.pyplot as plt M= numpy.array([[6, 0, 9, 9, 6, 6, 2, 0, 6], [5, 7, 2, 6, 7, 3, 7, 4, 4], [8, 3, 2, 5, 0, 0, 7, 6, 5]]) obj= ConvexHullMap(matrix=M)print("obj.points =", ...
Python中的凸包(ConvexHull)与多边形(Polygon)转换 在计算机科学和数学中,凸包是一个重要的概念,它描述了一个点集的最小凸多边形或多面体。在二维空间中,凸包是一个凸多边形,其所有顶点都来自于原始点集,并且包含了原始点集中的所有点。在Python中,我们可以使用scipy库中的ConvexHull类来计算凸包,然后将其转换为matplo...
var balls:Array; var numBalls:uint=30; var fl:Number=250; var vpx:Number=stage.stageWidth/2...
Python 1 2 3 4 5 6 7 # create hull array for convex hull points hull = [] # calculate points for each contour for i in range(len(contours)): # creating convex hull object for each contour hull.append(cv2.convexHull(contours[i], False)) C++ 1 2 3 4 // create hull array for ...
fromskimage.morphologyimportconvex_hull_image chull = convex_hull_image(image) 完整代码: """ === Convex Hull === The convex hull of a binary image is the set of pixels included in the smallest convex polygon that surround all white pixels in the input. A good overview of the ...
A Python implementation of Chan's Algorithm for lower convex hull in 3D. convex-hullconvexhullconvex-hull-algorithms UpdatedApr 10, 2021 Python NishanthPrajith/Convex_Hull_Visualization Star2 Code Issues Pull requests A simple convex hull algorithm visualization. ...
Use plot.py to generate the 3D plot of the points that are in the hull. python plot.py <name of input file> Description The figure generated from plot.py is interactive and can be rotated in any direction to look into the details of the points. The picture shown here is just a sn...
cv.convexHull 使用的是Sklansky算法，是第一个线性时间的简单多边形凸包算法。它使用了一个非常简单的...
Convex Hull(凸包) 二圈妹 It's fun, it's the future. 来自专栏 · Python笔记 12 人赞同了该文章 2D 凸包是给定点集的最小凸多边形,即包围该点集的最小的凸多边形。凸包的特点是: 每个点都在或在多边形的边界上。 如果将每个点看作钉在平面上的钉子,拉一根橡皮筋将所有钉子围起来,松开后橡皮筋所形...