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identify ()
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  • identify (9) ( Solaris man: Ядро )
  • 
    NAME
         identify - describe the format and characteristics of one or
         more image files.
    
    SYNOPSIS
         identify [ options ... ] file [ file ... ]
    
    DESCRIPTION
         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 comment:
    
              Image: images/aquarium.miff
                class: PseudoClass
                colors: 256
                signature: eb5dca81dd93ae7e6ffae99a5275a53e
                matte: False
                geometry: 640x480
                depth: 8
                bytes: 308135
                format: MIFF
                comments:
    
                  Imported from MTV raster image:  aquarium.mtv
    
    OPTIONS
         -cache threshold
              megabytes of memory available to the pixel cache.
    
              Image pixels are stored in memory until 80 megabytes of
              memory have been consumed.  Subsequent pixel operations
              are cached on disk.  Operations to memory are
              significantly faster but if your computer does not have
              a sufficient amount of free memory you may want to
              adjust this threshold value.
    
         -density <width>x<height>
              vertical and horizontal resolution in pixels of the
              image.
    
              This option specifies an image density when decoding a
              Postscript or Portable Document page.  The default is
              72 pixels per inch in the horizontal and vertical
              direction.  This option is used in concert with -page.
    
         -format string
              output formatted image characteristics.
    
              Use this option to print information about the image in
              a format of your choosing.  You can include the image
              filename, type, width, height, or other image
              attributes by embedding special format characters:
    
                  %b   file size
                  %c   comment
                  %d   directory
                  %e   filename extention
                  %f   filename
                  %h   height
                  %i   input filename
                  %l   label
                  %m   magick
                  %n   number of scenes
                  %o   output filename
                  %p   page number
                  %q   quantum depth
                  %s   scene number
                  %t   top of filename
                  %u   unique temporary filename
                  %w   width
                  %x   x resolution
                  %y   y resolution
                  \n   newline
                  \r   carriage return
    
              For example,
    
                   -format "%m:%f %wx%h"
    
              displays MIFF:bird.miff 512x480 for an image titled
              bird.miff and whose width is 512 and height is 480.
    
              If the first character of string is @, the image
              comment is read from a file titled by the remaining
              characters in the string.
    
         -ping
              efficiently determine image characteristics.
    
              This is a more efficient and less memory intensive way
              to query if an image exists and what its size is.
              Note, only the size of the first image in a multi-frame
              image file is returned.
    
         -size <width>x<height>+<offset>
              width and height of the image.
    
              Use this option to specify the width and height of raw
              images whose dimensions are unknown such as GRAY, RGB,
              or CMYK.  In addition to width and height, use -size to
              skip any header information in the image or tell the
              number of colors in a MAP image file, (e.g. -size
              640x512+256).
    
              For Photo CD images, choose from these sizes:
    
                    192x128
                    384x256
                    768x512
                   1536x1024
                   3072x2048
    
              Finally, use this option to choose a particular
              resolution layer of a JBIG or JPEG image (e.g. -size
              1024x768).
    
         -verbose
              print detailed information about the image.
    
              This information is printed:  image name;  the image
              class (DirectClass or PseudoClass);  the total number
              of unique colors; whether there is a matte associated
              with the image; the number of runlength packets; the
              image size; the depth of the image; the image format;
              the image scene; and finally any image comment.  Refer
              to miff(1) for a description of the image class.
    
    SEE ALSO
         display(1), animate(1), montage(1), mogrify(1), convert(1),
         combine(1), xtp(1)
    
    COPYRIGHT
         Copyright (C) 2001 ImageMagick Studio, a non-profit
         organization dedicated to making software imaging solutions
         freely available.
    
         Permission is hereby granted, free of charge, to any person
         obtaining a copy of this software and associated
         documentation files ("ImageMagick"), to deal in ImageMagick
         without restriction, including without limitation the rights
         to use, copy, modify, merge, publish, distribute,
         sublicense, and/or sell copies of ImageMagick, and to permit
         persons to whom the ImageMagick is furnished to do so,
         subject to the following conditions:
    
         The above copyright notice and this permission notice shall
         be included in all copies or substantial portions of
         ImageMagick.
    
         The software is provided "as is", without warranty of any
         kind, express or implied, including but not limited to the
         warranties of merchantability, fitness for a particular
         purpose and noninfringement.  In no event shall ImageMagick
         Studio be liable for any claim, damages or other liability,
         whether in an action of contract, tort or otherwise, arising
         from, out of or in connection with ImageMagick or the use or
         other dealings in ImageMagick.
    
         Except as contained in this notice, the name of the
         ImageMagick Studio shall not be used in advertising or
         otherwise to promote the sale, use or other dealings in
         ImageMagick without prior written authorization from the
         ImageMagick Studio.
    
    AUTHORS
         John Cristy, E.I. du Pont De Nemours and Company
         Incorporated
    
    
    
    


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