ImageMagick format options

imOptions.txt

   \n   newline
   \r   carriage return
   <    less-than character.
   >    greater-than character.
   &    ampersand character.
   %%   a percent sign
   %b   file size of image read in
   %c   comment meta-data property
   %d   directory component of path
   %e   filename extension or suffix
   %f   filename (including suffix)
   %g   layer canvas page geometry   (equivalent to "%Wx%H%X%Y")
   %h   current image height in pixels
   %i   image filename (note: becomes output filename for "info:")
   %k   CALCULATED: number of unique colors
   %l   label meta-data property
   %m   image file format (file magic)
   %n   number of images in current image sequence
   %o   output filename  (used for delegates)
   %p   index of image in current image list
   %q   quantum depth (compile-time constant)
   %r   image class and colorspace
   %s   scene number (from input unless re-assigned)
   %t   filename without directory or extension (suffix)
   %u   unique temporary filename (used for delegates)
   %w   current width in pixels
   %x   x resolution (density)
   %y   y resolution (density)
   %z   image depth (as read in unless modified, image save depth)
   %A   image transparency channel enabled (true/false)
   %C   image compression type
   %D   image GIF dispose method
   %G   original image size (%wx%h; before any resizes)
   %H   page (canvas) height
   %M   Magick filename (original file exactly as given,  including read mods)
   %O   page (canvas) offset ( = %X%Y )
   %P   page (canvas) size ( = %Wx%H )
   %Q   image compression quality ( 0 = default )
   %S   ?? scenes ??
   %T   image time delay (in centi-seconds)
   %U   image resolution units
   %W   page (canvas) width
   %X   page (canvas) x offset (including sign)
   %Y   page (canvas) y offset (including sign)
   %Z   unique filename (used for delegates)
   %@   CALCULATED: trim bounding box (without actually trimming)
   %#   CALCULATED: 'signature' hash of image values