Qiita Teams that are logged in
You are not logged in to any team

Log in to Qiita Team
OrganizationAdvent CalendarQiitadon (β)
Qiita JobsQiita ZineQiita Blog
Help us understand the problem. What is going on with this article?


More than 5 years have passed since last update.
# jpgファイルを縦幅1024pxに縮小して上書き保存
mogrify -resize x1024 -unsharp 2x1.4+0.5+0 -verbose *.jpg

# pngファイルを横幅1024pxに縮小して上書き保存
mogrify -resize 1024x -unsharp 2x1.4+0.5+0 -verbose *.png

# pngファイルを80%に縮小して上書き保存
mogrify -resize 80% -unsharp 2x1.4+0.5+0 -verbose *.png
# pngファイルをグレースケールへ変換して上書き保存
mogrify -colorspace grayscale -verbose *.png
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