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identify-im6(1)

NAME

   identify  -  describes  the  format  and characteristics of one or more
   image files.

SYNOPSIS

   identify [options] input-file

OVERVIEW

   The identify program is a member of the ImageMagick(1) suite of  tools.
   It describes the format and characteristics of one or more image files.
   It also reports if an image is incomplete or corrupt.  The  information
   returned includes the image 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 (by default off use -define unique=true option),
   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. Many more attributes are available with the verbose option.

   For more information about the identify command, point your browser  to
   file:///usr/share/doc/ImageMagick-6/www/identify.html                or
   http://www.imagemagick.org/script/identify.php.

DESCRIPTION

   Image Settings:
     -alpha option        on, activate, off, deactivate, set, opaque, copy
                          transparent, extract, background, or shape
     -antialias           remove pixel-aliasing
     -authenticate value  decrypt image with this password
     -channel type        apply option to select image channels
     -clip                clip along the first path from the 8BIM profile
     -clip-mask filename  associate a clip mask with the image
     -clip-path id        clip along a named path from the 8BIM profile
     -colorspace type     alternate image colorspace
     -crop geometry       cut out a rectangular region of the image
     -define format:option
                          define one or more image format options
     -define unique=true  return the number of unique colors in the image
     -density geometry    horizontal and vertical density of the image
     -depth value         image depth
     -endian type         endianness (MSB or LSB) of the image
     -extract geometry    extract area from image
     -features  distance    analyze   image   features   (e.g.   contrast,
   correlation)
     -format "string"     output formatted image characteristics
     -fuzz distance       colors within this distance are considered equal
     -gamma value         of gamma correction
     -interlace type      type of image interlacing scheme
     -interpolate method  pixel color interpolation method
     -limit type value    pixel cache resource limit
     -list  type            Color,  Configure,  Delegate,  Format,  Magic,
   Module,
                          Resource, or Type
     -mask filename       associate a mask with the image
     -matte               store matte channel if the image has one
     -moments             report image moments
     -monitor             monitor progress
     -ping                efficiently determine image attributes
     -precision value     maximum number of significant digits to print
     -quiet               suppress all warning messages
     -regard-warnings     pay attention to warning messages
     -respect-parentheses settings  remain  in  effect  until  parenthesis
   boundary
     -sampling-factor geometry
                          horizontal and vertical sampling factor
     -seed value          seed a new sequence of pseudo-random numbers
     -set attribute value set an image attribute
     -size geometry       width and height of image
     -strip               strip image of all profiles and comments
     -unique              display the number of unique colors in the image
     -units type          the units of image resolution
     -verbose             print detailed information about the image
     -virtual-pixel method
                          virtual pixel access method

   Image Operators:
     -grayscale method    convert image to grayscale
     -negate              replace each pixel with its complementary color

   Miscellaneous Options:
     -debug events        display copious debugging information
     -help                print program options
     -list type           print a list of supported option arguments
     -log format          format of debugging information
     -version             print version information

   By  default,  the  image  format  of  `file' is determined by its magic
   number.  To specify a particular image  format,  precede  the  filename
   with  an  image  format name and a colon (i.e. ps:image) or specify the
   image type as the filename suffix (i.e. image.ps).  Specify  'file'  as
   '-' for standard input or output.

NOTE

   Although  some  options appear to modify the file to be identified, the
   identify command is strictly read only. For instance, the  crop  option
   crops the in-memory image and then describes the result.

COPYRIGHT

   Copyright  (C)  1999-2014 ImageMagick Studio LLC. Additional copyrights
   and      licenses      apply      to      this      software,       see
   file:///usr/share/doc/ImageMagick-6/www/license.html                 or
   http://www.imagemagick.org/script/license.php

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