{"id":131854,"date":"2024-03-25T20:47:29","date_gmt":"2024-03-25T11:47:29","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/matlab%e3%81%aefilter2-conv2%e9%96%a2%e6%95%b0%e3%81%aepython%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e5%90%8c%e7%ad%89%e3%81%ae%e9%96%a2%e6%95%b0\/"},"modified":"2024-03-27T21:26:08","modified_gmt":"2024-03-27T12:26:08","slug":"matlab%e3%81%aefilter2-conv2%e9%96%a2%e6%95%b0%e3%81%aepython%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e5%90%8c%e7%ad%89%e3%81%ae%e9%96%a2%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/matlab%e3%81%aefilter2-conv2%e9%96%a2%e6%95%b0%e3%81%aepython%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e5%90%8c%e7%ad%89%e3%81%ae%e9%96%a2%e6%95%b0\/","title":{"rendered":"MATLAB\u306efilter2\/conv2\u95a2\u6570\u306ePython\u306b\u304a\u3051\u308b\u540c\u7b49\u306e\u95a2\u6570"},"content":{"rendered":"<p>Python\u3067\u306f\u3001filter2\u3084conv2\u306eMATLAB\u95a2\u6570\u306e\u6a5f\u80fd\u3092\u3001SciPy\u30e9\u30a4\u30d6\u30e9\u30ea\u306econvolve2d\u95a2\u6570\u3092\u4f7f\u3063\u3066\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\r\n<span class=\"hljs-keyword\">from<\/span> scipy.signal <span class=\"hljs-keyword\">import<\/span> convolve2d\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">filter2<\/span>(<span class=\"hljs-params\">mat, kernel<\/span>):\r\n<span class=\"hljs-keyword\">return<\/span> convolve2d(mat, kernel, mode=<span class=\"hljs-string\">'same'<\/span>)\r\n<span class=\"hljs-comment\"># \u793a\u4f8b\u7528\u6cd5<\/span>\r\nmat = np.array([[<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>],\r\n[<span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>],\r\n[<span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>, <span class=\"hljs-number\">9<\/span>]])\r\nkernel = np.array([[<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">0<\/span>, -<span class=\"hljs-number\">1<\/span>],\r\n[<span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">0<\/span>, -<span class=\"hljs-number\">2<\/span>],\r\n[<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">0<\/span>, -<span class=\"hljs-number\">1<\/span>]])\r\nresult = filter2(mat, kernel)\r\n<span class=\"hljs-built_in\">print<\/span>(result)\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001mat \u304c\u5165\u529b\u884c\u5217\u3001kernel \u304c\u7573\u307f\u8fbc\u307f\u30ab\u30fc\u30cd\u30eb\u3067\u3059\u3002 filter2 \u95a2\u6570\u306f\u3001\u7573\u307f\u8fbc\u307f\u5f8c\u306e\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002 &#8216;same&#8217; \u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u51fa\u529b\u3068\u5165\u529b\u884c\u5217\u306e\u30b5\u30a4\u30ba\u3092\u540c\u3058\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f MATLAB \u306e filter2 \u95a2\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u52d5\u4f5c\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python\u3067\u306f\u3001filter2\u3084conv2\u306eMATLAB\u95a2\u6570\u306e\u6a5f\u80fd\u3092\u3001SciPy\u30e9\u30a4\u30d6\u30e9\u30ea\u306econvolve2d\u95a2\u6570\u3092\u4f7f\u3063\u3066\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002 import numpy as np from [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-131854","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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