问题描述
我想知道如何通过提供两个Point来获取opencv rect对象. C ++版本提供了这种数据结构.
I would like to know how I can get an opencv rect object by providing two Points. The c++ version provides this datastructre.
http://docs.opencv.org /java/2.4.9/org/opencv/core/Rect.html
我找不到在python中实例化rect的方法.我尝试了cv2.Rect(p1,p2)，但是这种方法似乎不存在.可能吗?
I cant find a way to instantiate rects in python.I tried cv2.Rect(p1,p2) but this method seems not be existent.Is it even possible?
非常感谢:)
推荐答案
以本教程为例，例如面部检测 http://docs.opencv.org/trunk/d7/d8b/tutorial_py_face_detection.html ，您会发现在Python opencv绑定中，矩形是四个坐标的元组/列表-例如faceCascade.detectMultiScale的结果就是这些的列表-基本上，使用常规的Python功能来管理它们.
Look for example at this tutorial face detection http://docs.opencv.org/trunk/d7/d8b/tutorial_py_face_detection.html and you'll see that in Python opencv bindings rectangles are tuples/lists of the four coordinates - the results of, for example, faceCascade.detectMultiScale is a list of these - basically, use normal Python capabilities to manage them.
我想您必须编写自己的重叠/区域/包含函数-并非非常困难-或在此处查看其他答案，例如
I guess you'll have to write your own overlap/area/contains functions - not terribly diificult - or see other answers here, for example Intersection and difference of two rectangles
更新-不好的是，detectMultiScale返回的矩形是(x，y，w，h)
UPDATE - my bad, the rectangles returned by detectMultiScale are (x,y,w,h)
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