1 .TH identify 1 "Date: 2009/01/10 01:00:00" "ImageMagick"
3 identify \- describes the format and characteristics of one or more image files.
6 \fBidentify\fP [\fIoptions\fP] \fIinput-file\fP
8 The \fBidentify\fP 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 \fI-define unique=true\fP 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.
10 For more information about the identify command, point your browser to file:///usr/share/doc/ImageMagick-7/www/identify.html or http://www.imagemagick.org/script/identify.php.
13 \-antialias remove pixel-aliasing
14 \-authenticate value decrypt image with this password
15 \-channel type apply option to select image channels
16 \-clip clip along the first path from the 8BIM profile
17 \-clip-mask filename associate a clip mask with the image
18 \-clip-path id clip along a named path from the 8BIM profile
19 \-crop geometry cut out a rectangular region of the image
20 \-define format:option
21 define one or more image format options
22 \-define unique=true return the number of unique colors in the image
23 \-density geometry horizontal and vertical density of the image
24 \-depth value image depth
25 \-endian type endianness (MSB or LSB) of the image
26 \-extract geometry extract area from image
27 \-features distance analyze image features (e.g. contrast, correlation)
28 \-format "string" output formatted image characteristics
29 \-fuzz distance colors within this distance are considered equal
30 \-interlace type type of image interlacing scheme
31 \-interpolate method pixel color interpolation method
32 \-limit type value pixel cache resource limit
33 \-list type Color, Configure, Delegate, Format, Magic, Module,
35 \-mask filename associate a mask with the image
36 \-matte store matte channel if the image has one
37 \-monitor monitor progress
38 \-ping efficiently determine image attributes
39 \-quiet suppress all warning messages
40 \-regard-warnings pay attention to warning messages
41 \-sampling-factor geometry
42 horizontal and vertical sampling factor
43 \-seed value seed a new sequence of pseudo-random numbers
44 \-set attribute value set an image attribute
45 \-size geometry width and height of image
46 \-strip strip image of all profiles and comments
47 \-unique display the number of unique colors in the image
48 \-units type the units of image resolution
49 \-verbose print detailed information about the image
50 \-virtual-pixel method
51 virtual pixel access method
54 \-negate replace each pixel with its complementary color
56 Miscellaneous Options:
57 \-debug events display copious debugging information
58 \-help print program options
59 \-log format format of debugging information
60 \-list type print a list of supported option arguments
61 \-version print version information
63 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.
65 Although some options appear to modify the file to be identified, the identify command is strictly \fBread only\fP. For instance, the crop option crops the in-memory image and then describes the result.
71 \fBCopyright (C) 1999-2013 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see file:///usr/share/doc/ImageMagick-7/www/license.html or http://www.imagemagick.org/script/license.php\fP