# Question about Mini\_Magick and mogrify

**URL:** <https://www.ruby-forum.com/t/question-about-mini-magick-and-mogrify/168187>\
**Category:** Ruby\
**Created:** [May 18, 2009, 12:47am UTC](https://www.ruby-forum.com/t/question-about-mini-magick-and-mogrify/168187 "2009-05-18T00:47:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![arvias](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@arvias](https://www.ruby-forum.com/u/arvias)\
**Post date:** [May 18, 2009, 12:47am UTC](https://www.ruby-forum.com/t/question-about-mini-magick-and-mogrify/168187/1 "2009-05-18T00:47:57Z")

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Hi.

I’m trying to write a caption to an image in my Rails Project.

From [http://www.imagemagick.org](http://www.imagemagick.org) this is something I should use:

width=`identify -format %w dragon.jpg`;   
convert -background ‘#0008’ -fill white -gravity center -size  
${width}x30   
caption:“Faerie Dragons love hot apple pies!”   
+size dragon.jpg +swap -gravity south -composite  
anno\_caption.jpg

If possible how can I write that in mini\_magick? I thinks it’s related  
to mogrify somehow.

Thanks.