identify
(1)
名称
identify - describes the format and characteristics of one
or more image files.
用法概要
identify [options] input-file
描述
User Commands 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 num-
ber 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-6.8.3/www/iden-
tify.html or http://www.imagemagick.org/script/identify.php.
DESCRIPTION
Image Settings:
-antialias remove pixel-aliasing
-authenticate value decrypt image with this password
-channel type apply option to select image channels
-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. con-
trast, correlation)
-format "string" output formatted image characteris-
tics
-fuzz distance colors within this distance are con-
sidered equal
-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,
ImageMagick Last change: Date: 2009/01/10 01:00:00 1
User Commands identify(1)
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
-sampling-factor geometry
horizontal and vertical sampling fac-
tor
-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 com-
ments
-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 comple-
mentary color
Miscellaneous Options:
-debug events display copious debugging information
-help print program options
-log format format of debugging information
-list type print a list of supported option
arguments
-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 iden-
tified, the identify command is strictly read only. For
instance, the crop option crops the in-memory image and then
describes the result.
ImageMagick Last change: Date: 2009/01/10 01:00:00 2
User Commands identify(1)
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+-------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-------------------+
|Availability | image/imagemagick |
+---------------+-------------------+
|Stability | Volatile |
+---------------+-------------------+
SEE ALSO
ImageMagick(1)
COPYRIGHT
Copyright (C) 1999-2013 ImageMagick Studio LLC. Additional
copyrights and licenses apply to this software, see
file:///usr/share/doc/ImageMagick-6.8.3/www/license.html or
http://www.imagemagick.org/script/license.php
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from http://image_mag-
ick.veidrodis.com/image_magick/ImageMagick-6.8.3-5.tar.gz
Further information about this software can be found on the
open source community website at http://www.imagemag-
ick.org/.
ImageMagick Last change: Date: 2009/01/10 01:00:00 3