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@kishida-sin株式会社AIメディカルサービス

jpgのqualityを確認する方法 [ImageMagick]

Posted at

目的

手元にあるjpgファイルが、qualityいくつで圧縮されたのかが知りたい！

環境

  • macOS High Sierra
  • homebrew がインストールされていること

手順

ImageMagick のインストール

$ brew install imagemagick

quality の確認

$ identify -format '%f:%Q\n' hoge.jpg

以下のように出力されます

hoge.jpg:85

%f (ファイルネーム), %Q (quality)以外に指定できるものはこちらを参照

参考

imagemagick 公式

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