Unix/Linux Go Back    


CentOS 7.0 - man page for identify (centos section 1)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


identify(1)									      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/share/doc/ImageMagick-6.7.8/www/identify.html      or     http://www.imagemag-
       ick.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
	 -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
	 -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
	 -matte 	      store matte channel if the image has one
	 -monitor	      monitor progress
	 -ping		      efficiently determine image attributes
	 -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:
	 -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)  1999-2012 ImageMagick Studio LLC. Additional copyrights and licenses apply
       to  this   software,   see   file:///usr/share/doc/ImageMagick-6.7.8/www/license.html   or
       http://www.imagemagick.org/script/license.php

ImageMagick			    Date: 2009/01/10 01:00:00			      identify(1)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 05:03 PM.