Install ImageMagick for only manipulating image files

gistfile1.txt

# Get http://www.ijg.org/files/jpegsrc.v6b.tar.gz

  tar zxvf jpegsrc.v6b.tar.gz
  cd jpeg-6b
  cp /usr/share/libtool/config.sub .
  cp /usr/share/libtool/config.guess .
  sudo mkdir -p /usr/local/man/man1
  ./configure --enable-shared --enable-static
  make
  sudo make install
  sudo ranlib /usr/local/lib/libjpeg.a

# Get the latest version or http://sourceforge.net/project/downloading.php?groupname=libpng&filename=libpng-1.2.34.tar.bz2&use_mirror=superb-east

  tar zxf libpng-1.2.24.tar.gz
  cd libpng-1.2.24
  ./configure
  make
  sudo make install

# Get ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick.tar.gz

  tar zxf ImageMagick.tar.gz
  cd ImageMagick-6.3.8/
  ./configure

# Look for to see if it's all setup correctly
#  JPEG v1           --with-jpeg=yes               yes
#  PNG               --with-png=yes                yes


  make
  sudo make install