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identify(1)            DragonFly General Commands Manual           identify(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/local/share/doc/ImageMagick-6/www/identify.html or
       http://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:
         -auto-orient         automatically orient image
         -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.

SEE ALSO
       ImageMagick(1)

COPYRIGHT
       Copyright (C) 1999-2021 ImageMagick Studio LLC. Additional copyrights
       and licenses apply to this software, see
       file:///usr/local/share/doc/ImageMagick-6/www/license.html or
       http://imagemagick.org/script/license.php

ImageMagick                Date: 2009/01/10 01:00:00               identify(1)