| # im is a PIL Image object | |
| im_arr = np.asarray(im) | |
| # convert rgb array to opencv's bgr format | |
| im_arr_bgr = cv2.cvtColor(im_arr, cv2.COLOR_RGB2BGR) | |
| # pts1 and pts2 are the upper left and bottom right coordinates of the rectangle | |
| cv2.rectangle(im_arr_bgr, pts1, pts2), | |
| color=(0, 255, 0), thickness=3) | |
| im_arr = cv2.cvtColor(im_arr_bgr, cv2.COLOR_BGR2RGB) | |
| # convert back to Image object | |
| im = Image.fromarray(im_arr) |
| """ | |
| Description: In this script, I plot the benchmark result of lambda compared | |
| to itemgetter in the operator package. We sort a list of tuple (which has two | |
| elements) to benchmark. The list element number ranges from 100 to 1000000. | |
| """ | |
| # import numpy as np | |
| import matplotlib | |
| import matplotlib.pyplot as plt | |
| colors = ["#e6194b", |
| import cv2 | |
| import numpy as np | |
| def main(): | |
| img = cv2.imread("test_image.jpg") | |
| # assume coord is a list with 8 float values, the points of the rectangle area should | |
| # have be clockwise | |
| x1, y1, x2, y2, x3, y3, x4, y4 = coord |
| from PIL import Image, ImageFont, ImageDraw | |
| im = Image.new('RGB', (1024, 1024), (255, 255, 255)) | |
| # in the font parameter, use a valid path to a font | |
| font = ImageFont.truetype( | |
| font="D:/code_exprt/fzyh.ttf", | |
| size=250) | |
| drawer = ImageDraw.Draw(im) |
| # show code point in hexadecimal format, | |
| # see reference https://stackoverflow.com/questions/38909362/is-there-a-way-to-find-a-characters-unicode-code-point-in-python-2-7 | |
| hex(ord('我')) | |
| # get the character corresponding to a code point, | |
| # reference: https://stackoverflow.com/questions/10715669/python-unicode-codepoint-to-unicode-character | |
| chr(0x6211) # the code point of 我 is \u6211 |
To update mintty packaged with msys2, first download the latest version of mintty from here. Download
the mintty tarball and extract it. Then copy mintty.exe to MSYS2_ROOT/usr/bin to replace the old mintty.exe file.
Restart msys2 and you should be albe to use the latest mintty. Reference here.
Install the latest wsltty release from here. Mintty will be updated.
在 Windows Store 下载应用需要登录 Microsoft 账户，登录时遇到错误，信息如下：
遇到错误 请稍后重试登录
解决方案如下：
按
Win + R键，在运行窗口中，键入WSReset.exe并点击「运行」。
| # Enable tab completion | |
| import rlcompleter | |
| import pdb | |
| pdb.Pdb.complete=rlcompleter.Completer(locals()).complete |
| # Path to your oh-my-zsh installation. | |
| export ZSH="/home/haojiedong/.oh-my-zsh" | |
| # Set name of the theme to load --- if set to "random", it will | |
| # load a random theme each time oh-my-zsh is loaded, in which case, | |
| # to know which specific one was loaded, run: echo $RANDOM_THEME | |
| # See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes | |
| # to use random theme, enable the following option | |
| ZSH_THEME="random" |
