我有一个问题。我试图计算交并比(Intersection over Union),它是两个组件的重叠部分除以两个组件的联合部分。假设component1是一个矩阵,其中第一个对象为1;component2是一个矩阵,其中第二个对象为1。我可以通过
np.logical_and(component == 1, component2 == 1)
来计算重叠。但是如何计算联合部分呢?我只对连接的对象感兴趣。import numpy as np
component1 = np.array([[0,1,1],[0,1,1],[0,1,1]])
component2 = np.array([[1,1,0],[1,1,0],[1,1,0]])
overlap = np.logical_and(component == 1, component2 == 1)
union = ?
IOU = len(overlap)/len(union)