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Commands and references ( GNU / linux kernel 2.4.18-3 and 2.4.18-14 )   
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The commands with their most common usage are in brackets like this: [ command ].
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identify(1)                                                        identify(1)

       identify - describe an image or image sequence.

       identify file [ file ... ]

       Identify  describes the format and characteristics of one or more image
       files. It will also report if an image is incomplete or  corrupt.   The
       information  displayed  includes  the  scene number, the file name, the
       width and height of the image, whether the image is colormapped or not,
       the  number  of  colors in the image, the number of bytes in the image,
       the format of the image (JPEG, PNM, etc.), and finally  the  number  of
       seconds  it  took to read and process the image. An example line output
       from identify follows:

           images/aquarium.miff 640x480 PseudoClass 256c
                  308135b MIFF 1s

       If -verbose is set, expect additional output including any  image  com-

           Image: images/aquarium.miff
           class: PseudoClass
           colors: 256
           signature: eb5dca81dd93ae7e6ffae99a527eb5dca8...
           matte: False
           geometry: 640x480
              depth: 8
           bytes: 308135
           format: MIFF
           Imported from MTV raster image: aquarium.mtv

       For some formats, additional format-specific information about the file
       will be written if the -debug coder or -debug all option is used.

       Options are processed in command line order. Any option you specify  on
       the  command  line  remains in effect for the set of images immediately
       following, until the set is terminated by the appearance of any  option
       or -noop.

       For  a  more  detailed  description of each option, see Options, above.

       -authenticate (string)
              decrypt image with this password

       -cache (threshold)
              (This option has been replaced by the -limit option)

       -debug (events)
              enable debug printout

       -define (key){=(value)},...
              add coder/decoder specific options

       -density (width)x(height)
              horizontal and vertical resolution in pixels of the image

       -depth (value)
              depth of the image

       -format (string)
              output formatted image characteristics

       -help  print usage instructions

       -interlace (type)
              the type of interlacing scheme

       -limit (type) (value)
              Area, Disk, File, Map, or Memory resource limit

       -list (type)
              the type of list

       -log (string)
              Specify format for debug log

       -ping  efficiently determine image characteristics

       -sampling-factor (horizontal_factor)x(vertical_factor)
              sampling  factors  used  by  JPEG  or  MPEG-2  encoder  and  YUV

       -size (width)x(height){+offset}
              width and height of the image

              print detailed information about the image

              print ImageMagick version string

              For  a  more  detailed  description of each option, see Options,
              above.  ImageMagick(1).

       display(1), animate(1), montage(1), mogrify(1),  convert(1),  ImageMag-
       ick(1), composite(1)

       Copyright  (C)  1999-2004 ImageMagick Studio LLC. Additional copyrights
       and  licenses  apply  to  this   software,   see   http://www.imagemag-

ImageMagick                Date: 2004/01/01 01:00:00               identify(1)

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