ImageMagick

ImageMagick

• site: http://www.imagemagick.org/
   

Compile & Install

1. Install JasPer
2. Compile & Install ImageMagick

   bzcat ImageMagick-6.6.3-8.tar.bz2 |tar xfv -
   cd ImageMagick-6.6.3-8
   ./configure --with-jp2=yes
   make
   make install

   - If JasPer was installed, --with-jp2=yes option is automatically set.
    

convert

• Stdin, Stdout

  cat a.gif | convert - jpeg:- > a.jpg

List of Tools

• animate
• compare
• composite
• conjure
• convert
• display
• identify
• import
• mogrify
• montage
• stream
   

Tips

• サポートしているフォーマットを調べる

  convert -list format

• コンパイルの設定を調べる

  convert -list configure

• delegate で機能拡張できるらしい
  • http://www.imagemagick.org/download/dele​gates/
     

Bug?

• libMagickCore.so.4: cannot restore segment prot after reloc: Permission denied is outputted.

• Cause: SELinux prohibits loading the library.
• Solution: Execute chcon -c -v -R -u system_u -r object_r -t textrel_shlib_t /usr/local/lib/libMagickCore.so.4