Help us understand the problem. What is going on with this article?

jpgのqualityを確認する方法 [ImageMagick]

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

kishida-s
Software engineer?
AI-medical-service
近未来の内視鏡医療を実現する医療ベンチャー
https://www.ai-ms.com/
Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
Comments
No comments
Sign up for free and join this conversation.
If you already have a Qiita account
Why do not you register as a user and use Qiita more conveniently?
You need to log in to use this function. Qiita can be used more conveniently after logging in.
You seem to be reading articles frequently this month. Qiita can be used more conveniently after logging in.
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
ユーザーは見つかりませんでした