{"id":2640,"date":"2021-02-23T21:30:25","date_gmt":"2021-02-23T12:30:25","guid":{"rendered":"https:\/\/obenkyolab.com\/?p=2640"},"modified":"2022-01-29T00:28:04","modified_gmt":"2022-01-28T15:28:04","slug":"keras%e3%81%8b%e3%82%89mnist%e3%82%92%e5%8f%96%e5%be%97%e3%81%97%e3%81%a6%e7%99%bd%e9%bb%92%e8%a1%a8%e7%a4%ba%e3%81%99%e3%82%8b%e3%81%be%e3%81%a7","status":"publish","type":"post","link":"https:\/\/obenkyolab.com\/?p=2640","title":{"rendered":"Keras\u304b\u3089MNIST\u3092\u53d6\u5f97\u3057\u3066\u767d\u9ed2\u8868\u793a\u3059\u308b\u307e\u3067"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/obenkyolab.com\/?p=2640\/#%E6%A6%82%E8%A6%81\" >\u6982\u8981<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/obenkyolab.com\/?p=2640\/#%E7%92%B0%E5%A2%83\" >\u74b0\u5883<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/obenkyolab.com\/?p=2640\/#Step1_MNIST%E3%81%AE%E5%8F%96%E5%BE%97\" >Step1 : MNIST\u306e\u53d6\u5f97<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/obenkyolab.com\/?p=2640\/#Step2_MNIST%E3%82%92%E7%94%BB%E5%83%8F%E3%81%A7%E8%A1%A8%E7%A4%BA\" >Step2 : MNIST\u3092\u753b\u50cf\u3067\u8868\u793a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/obenkyolab.com\/?p=2640\/#Step3_%E3%82%B0%E3%83%AC%E3%83%BC%E3%82%B9%E3%82%B1%E3%83%BC%E3%83%AB%E3%81%A7%E8%A1%A8%E7%A4%BA%E3%81%99%E3%82%8B\" >Step3 : \u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u3067\u8868\u793a\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/obenkyolab.com\/?p=2640\/#%E3%82%B3%E3%83%BC%E3%83%89%E5%85%A8%E6%96%87\" >\u30b3\u30fc\u30c9\u5168\u6587<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"\u6982\u8981\"><span class=\"ez-toc-section\" id=\"%E6%A6%82%E8%A6%81\"><\/span>\u6982\u8981<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u30c7\u30a3\u30fc\u30d7\u30e9\u30fc\u30cb\u30f3\u30b0\u306e\u5b66\u7fd2\u7528\u30c7\u30fc\u30bf\u3068\u3057\u3066\u3088\u304f\u5229\u7528\u3055\u308c\u308b\u624b\u66f8\u304d\u6570\u5b57\u753b\u50cf\u306e\u30e9\u30d9\u30eb\u4ed8\u304d\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3068\u3057\u3066\u3001MNIST\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u56de\u306f\u3053\u306eMNIST\u3092Keras\u304b\u3089\u53d6\u5f97\u3057\u3066\u767d\u9ed2\u753b\u50cf\u3092Jupyter\u3092\u4f7f\u3063\u3066\u8868\u793a\u3059\u308b\u3068\u3053\u308d\u307e\u3067\u3092\u8a66\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u74b0\u5883\"><span class=\"ez-toc-section\" id=\"%E7%92%B0%E5%A2%83\"><\/span>\u74b0\u5883<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Windows10<\/li><li>python3.8(venv)<\/li><li>TensorFlow2.4.1<\/li><li>Keras2.4.3<\/li><\/ul>\n\n\n\n<p>\u4eca\u56de\u4f7f\u7528\u3059\u308b\u74b0\u5883\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u69cb\u7bc9\u3057\u305fKeras\u306e\u74b0\u5883\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-it-learning wp-block-embed-it-learning\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"8UUsmuhOwI\"><a href=\"https:\/\/obenkyolab.com\/?p=2631\">Windows10\u306bKeras\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Windows10\u306bKeras\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b&#8221; &#8212; Obenkyolab\" src=\"https:\/\/obenkyolab.com\/?p=2631&#038;embed=true#?secret=bAC0vheexB#?secret=8UUsmuhOwI\" data-secret=\"8UUsmuhOwI\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p>\u3000keras\u306f\u521d\u5fc3\u8005\u3067\u3082\u3068\u3063\u3064\u304d\u3084\u3059\u3044\u306e\u3067\u72ec\u5b66\u3067\u3082\u7fd2\u5f97\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<iframe style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"https:\/\/rcm-fe.amazon-adsystem.com\/e\/cm?ref=tf_til&amp;t=sebone0f-22&amp;m=amazon&amp;o=9&amp;p=8&amp;l=as1&amp;IS2=1&amp;detail=1&amp;asins=4873118263&amp;linkId=36818f67133b297fd00910cffa5467c8&amp;bc1=000000&amp;lt1=_blank&amp;fc1=333333&amp;lc1=0066c0&amp;bg1=ffffff&amp;f=ifr\">\n    <\/iframe>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step1-mnist\u306e\u53d6\u5f97\"><span class=\"ez-toc-section\" id=\"Step1_MNIST%E3%81%AE%E5%8F%96%E5%BE%97\"><\/span>Step1 : MNIST\u306e\u53d6\u5f97<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>JupyterNotebook\u3067\u4ee5\u4e0b\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>from keras.datasets import mnist\n(x_train, y_train), (x_test, y_test) = mnist.load_data()<\/code><\/pre><\/div>\n\n\n\n<p>\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306bMNIST\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u304c\u59cb\u307e\u308a\u307e\u3059\u3002<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"104\" src=\"https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-700x104.png\" alt=\"\" class=\"wp-image-2642\" srcset=\"https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-700x104.png 700w, https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-300x45.png 300w, https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-768x114.png 768w, https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image.png 896w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p>\u3053\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306f\u521d\u3081\u3066mnist\u3092\u30ed\u30fc\u30c9\u3057\u305f\u3068\u304d\u306e\u307f\u5b9f\u65bd\u3055\u308c\u307e\u3059\u3002\u521d\u56de\u30ed\u30fc\u30c9\u6642\u306b\u30e6\u30fc\u30b6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u914d\u4e0b\u306b.keras\u30d5\u30a9\u30eb\u30c0\u5185\u304c\u751f\u6210\u3055\u308c\u30012\u56de\u76ee\u4ee5\u964d\u306f\u305d\u306e\u914d\u4e0b\u306edatsets\/mnist.npz\u304b\u3089\u306e\u30ed\u30fc\u30c9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step2-mnist\u3092\u753b\u50cf\u3067\u8868\u793a\"><span class=\"ez-toc-section\" id=\"Step2_MNIST%E3%82%92%E7%94%BB%E5%83%8F%E3%81%A7%E8%A1%A8%E7%A4%BA\"><\/span>Step2 : MNIST\u3092\u753b\u50cf\u3067\u8868\u793a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4e0a\u8a18\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30c7\u30fc\u30bf\u306b\u304a\u3044\u3066\u3001x_train\u306f28\u00d728\u306e\u884c\u5217\uff08\u753b\u50cf\u30c7\u30fc\u30bf\uff09\u304c6000\u500b\u5165\u3063\u3066\u304a\u308a\u3001y_train\u306f\u305d\u308c\u306b\u5bfe\u3059\u308b\u30e9\u30d9\u30eb\u306e\u30c7\u30fc\u30bf\u3067\u3059\u3002<br>x_train\u306e1\u679a\u76ee\u306e\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u8868\u793a\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>import matplotlib.pyplot as plt\nplt.imshow(x_train[0])<\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"245\" height=\"229\" src=\"https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-1.png\" alt=\"\" class=\"wp-image-2644\"\/><\/figure>\n\n\n\n<p>\u624b\u66f8\u304d\u306e&#8221;5&#8243;\u306e\u753b\u50cf\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"step3-\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u3067\u8868\u793a\u3059\u308b\"><span class=\"ez-toc-section\" id=\"Step3_%E3%82%B0%E3%83%AC%E3%83%BC%E3%82%B9%E3%82%B1%E3%83%BC%E3%83%AB%E3%81%A7%E8%A1%A8%E7%A4%BA%E3%81%99%E3%82%8B\"><\/span>Step3 : \u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u3067\u8868\u793a\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4e0a\u8a18\u3067\u793a\u3057\u305f\u8868\u793a\u306e\u307e\u307e\u3067\u3082\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u3067\u8868\u793a\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306bgray\u30e1\u30bd\u30c3\u30c9\u3092\u4e88\u5099\u30ac\u30b9\u3053\u3068\u3067\u767d\u9ed2\u8868\u793a\u3092\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>plt.gray()\nplt.imshow(x_train[0])<\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"243\" height=\"231\" src=\"https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-2.png\" alt=\"\" class=\"wp-image-2645\"\/><\/figure>\n\n\n\n<p>\u4ee5\u4e0a<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u30b3\u30fc\u30c9\u5168\u6587\"><span class=\"ez-toc-section\" id=\"%E3%82%B3%E3%83%BC%E3%83%89%E5%85%A8%E6%96%87\"><\/span>\u30b3\u30fc\u30c9\u5168\u6587<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-file=\"keras_test.py\" data-lang=\"Python\"><code>from keras.datasets import mnist\nimport matplotlib.pyplot as plt\n\n#MNIST\u30ed\u30fc\u30c9\n(x_train, y_train), (x_test, y_test) = mnist.load_data()\n\n#\u30ab\u30e9\u30fc(viridis)\u8868\u793a\nplt.subplot(121)\nplt.imshow(x_train[0])\nplt.viridis()\nplt.title(&quot;viridis&quot;)\n\n#\u767d\u9ed2\u8868\u793a\nplt.subplot(122)\nplt.imshow(x_train[0])\nplt.gray()\nplt.title(&quot;gray&quot;)<\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"365\" height=\"187\" src=\"https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-3.png\" alt=\"\" class=\"wp-image-2647\" srcset=\"https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-3.png 365w, https:\/\/obenkyolab.com\/wp-content\/uploads\/2021\/02\/image-3-300x154.png 300w\" sizes=\"auto, (max-width: 365px) 100vw, 365px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 \u30c7\u30a3\u30fc\u30d7\u30e9\u30fc\u30cb\u30f3\u30b0\u306e\u5b66\u7fd2\u7528\u30c7\u30fc\u30bf\u3068\u3057\u3066\u3088\u304f\u5229\u7528\u3055\u308c\u308b\u624b\u66f8\u304d\u6570\u5b57&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":1218,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"ja","_original_post":"https:\/\/obenkyolab.com\/?p=2640","footnotes":""},"categories":[7,53],"tags":[],"class_list":["post-2640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","category-53","ja"],"_links":{"self":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/2640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2640"}],"version-history":[{"count":12,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/2640\/revisions"}],"predecessor-version":[{"id":4729,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/2640\/revisions\/4729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/media\/1218"}],"wp:attachment":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}