shokai https://blog.hatena.ne.jp/shokai/ 橋本詳解 https://shokai.hatenadiary.org/ JRuby RMagick Ruby 画像読み込んでwidth, heightを出力対決 画像46枚でJRuby+javax.imageio #!/usr/bin/env jruby # -*- coding: utf-8 -*- require 'java' import 'java.lang.System' import 'javax.imageio.ImageIO' import 'java.awt.image.BufferedImage' start = Time.now ARGV.each{|name| begin img = ImageIO.read(java.io.File.new(name)) puts "#{na… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshokai.hatenadiary.org%2Fentry%2F20100629%2F1277804347" title="JRuby+javax.imageioを使うか、Ruby+RMagickを使うか - 橋本詳解" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2010-06-29 18:39:07 rich https://shokai.hatenadiary.org/entry/20100629/1277804347 1.0 100%