{"image_url":null,"published":"2011-02-24 02:54:19","title":"VisualWorks\u3067\u753b\u50cf\u30a8\u30c3\u30b8\u62bd\u51fa","height":"190","description":"VisualWorks\u3067\u753b\u50cf\u306e\u30a8\u30c3\u30b8\u62bd\u51fa\u3057\u3066\u307f\u307e\u3057\u305f\u3002 \"\u753b\u50cf\u306e\u30ed\u30fc\u30c9\" img := (ImageReader fromFile: '/path/to/your/image/file') image. newImage := img copyEmpty. \"\u753b\u50cf\u306e\u30b0\u30ec\u30a4\u30b9\u30b1\u30fc\u30eb\u5316\" img pixelsDo: [:x :y | pxColor := img valueAtPoint: x@y. ntscGray := (pxColor red + pxColor green + pxColor blue) / 3. newPxColor := (ColorValue red: ntscGra\u2026","type":"rich","provider_url":"https://hatena.blog","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech-blog.pocket7878.com%2Fentry%2F20110224%2F1298570059\" title=\"VisualWorks\u3067\u753b\u50cf\u30a8\u30c3\u30b8\u62bd\u51fa - Let&#39;s write \u03b2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","author_name":"Pocket7878_dev","blog_url":"https://tech-blog.pocket7878.com/","categories":["Smalltalk"],"blog_title":"Let's write \u03b2","url":"https://tech-blog.pocket7878.com/entry/20110224/1298570059","version":"1.0","author_url":"https://blog.hatena.ne.jp/Pocket7878_dev/"}