P0ny的博客

np.stack(list or tuple , axis=0, out=None)axis写的是哪个维度,就在哪个维度插入叠加的数组的总数 >>> arrays = [np.random.randn(3, 4) for _ in range(10)] # 产生一个list,包含10个shape为(3,4)的数组 >>> np.stack(...

用途：pip更换为国内源，可以大大的提高安装成功率和速度。Windows更换pip/pip3源打开目录：%appdata%新增pip文件夹，新建pip.ini文件给pip.ini添加以下内容[global]timeout = 6000index-url = https://pypi.tuna.tsinghua.edu.cn/simpletrusted-host = pypi.t...

背景照片:logo:合成效果:代码:import cv2 as cv, numpy as np# Load two imagesimg1 = cv.imread('227351.jpg')img2 = cv.imread('logo.png')# I want to put logo on top-left corner, So I create...

import xml.etree.cElementTree as ETimport ospath_root = ['E:\data-VOC0712\VOC2007\Annotations', 'E:\data-VOC0712\VOC2012\Annotations']CLASSES = [ "bottle", "cat...