{"categories":["Python"],"version":"1.0","provider_name":"Hatena Blog","image_url":null,"height":"190","title":"\u753b\u50cf\u306e\u77e9\u5f62\u62bd\u51fa","blog_title":"HTN20190109\u306e\u65e5\u8a18","type":"rich","description":"https://qiita.com/neriai/items/448a36992e308f4cabe2 cd imgrm -rf outmkdir out python3.11 import cv2import numpy as npimport osimport glob def crop_img(file_path,count): # \u753b\u50cf\u3092\u8aad\u8fbc src = cv2.imread(file_path, cv2.IMREAD_COLOR) # \u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u753b\u50cf\u3078\u5909\u63db gray = cv2.cvtColor(src, cv2.COLOR_BGR2GRAY) # 2\u5024\u5316 retval, bw \u2026","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2025%2F09%2F07%2F125117\" title=\"\u753b\u50cf\u306e\u77e9\u5f62\u62bd\u51fa - HTN20190109\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://htn20190109.hatenablog.com/entry/2025/09/07/125117","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/HTN20190109/","published":"2025-09-07 12:51:17","author_name":"HTN20190109","blog_url":"https://htn20190109.hatenablog.com/"}