描述:union() 取并集,效果等同于|,重复元素只会出现⼀次,但是括号⾥可以是 list,tuple,其他 , 甚⾄是 dict 语法:set.union(set1, set2...) 参数: set1--必需,合并的⽬标集合 set2--可选,其他要合并的集合,可以多个,多个使⽤逗号 , 隔开。'''#1.找出a和b中都包含了
Python provides built-in functions to find the intersection and union of two sets or lists. These functions areintersectionandunion. In this article, we will explore these functions and see how they can be used in various scenarios. Intersection Theintersectionfunction returns a new set or list ...
set1 -- 必需,合并的⽬标集合 set2 -- 可选,其他要合并的集合,可以多个,多个使⽤逗号 , 隔开。 ''' # 1.找出a和b中都包含了的元素 # set类intersection()函数来获取两个集合的交集 print(list(set(a) .intersection(set(b))) # 2.a或b中包含的所有元素 # 交集 union print(list(set(a). ...
iou = np.sum(intersection) / np.sum(union) print('IOU:', iou) 在上面的代码中,我们首先使用OpenCV的imread函数读取两个二值化图像,并将其转换为NumPy数组。然后,我们使用NumPy的logical_and函数计算两个图像的交集,使用logical_or函数计算两个图像的并集。最后,我们将交集的像素数除以并集的像素数,得到IOU值...
python的set和其他语言类似, 是一个无序不重复元素集, 基本功能包括关系测试和消除重复元素。 集合对象还支持union(联合), intersection(交), difference(差)和sysmmetric difference(对称差集)等数学运算。 sets 支持 x in set的bool运算判别x是否在集合内, len(set)集合的长度,和 for x in set对集合内数据的...
python程序实现 具体实现过程请移步:https://www.pyimagesearch.com/2016/11/07/intersection-over-union-iou-for-object-detection/ 代码语言:javascript 代码运行次数:0 运行 AI代码解释 defbb_intersection_over_union(boxA,boxB):# determinethe(x,y)-coordinatesofthe intersection rectangle ...
def bb_intersection_over_union(boxA, boxB): boxA = [int(x) for x in boxA] boxB = [int(x) for x in boxB] xA = max(boxA[0], boxB[0]) yA = max(boxA[1], boxB[1]) xB = min(boxA[2], boxB[2]) yB = min(boxA[3], boxB[3]) interArea = max(0, xB - xA...
python 并集union, 交集intersection, 差集difference, 对称差集symmetric_difference a,b,c = [1,2,3],[2,3,4],[3,4,5] print('--->union') print('a,b取并集:',set(a).union(b)) print('a,b取并集:',set(a)|set(b)) print('a,b,c取并集:',set(a).union(b,c)) print('a,b,...
Last update on January 06 2025 13:35:54 (UTC/GMT +8 hours) Write a Python program that performs common set operations like union, intersection, and difference of two frozensets. Sample Solution: Code: defmain():frozenset_x=frozenset([1,2,3,4,5])frozenset_y=frozenset([0,1,...
Write a Python program that creates two 'Counter' objects and finds their union, intersection, and difference.Sample Solution:Code:from collections import Counter # Create two Counter objects ctr1 = Counter(x=3, y=2, z=10) ctr2 = Counter(x=1, y=2, z=3) # Union of counters...