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://@DOCUMENTATION_PATH@/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 \-crop geometry cut out a rectangular region of the image
17 \-define format:option
18 define one or more image format options
19 \-define unique=true return the number of unique colors in the image
20 \-density geometry horizontal and vertical density of the image
21 \-depth value image depth
22 \-endian type endianness (MSB or LSB) of the image
23 \-extract geometry extract area from image
24 \-features distance analyze image features (e.g. contrast, correlation)
25 \-format "string" output formatted image characteristics
26 \-fuzz distance colors within this distance are considered equal
27 \-interlace type type of image interlacing scheme
28 \-interpolate method pixel color interpolation method
29 \-limit type value pixel cache resource limit
30 \-list type Color, Configure, Delegate, Format, Magic, Module,
32 \-mask filename associate a mask with the image
33 \-matte store matte channel if the image has one
34 \-monitor monitor progress
35 \-ping efficiently determine image attributes
36 \-quiet suppress all warning messages
37 \-regard-warnings pay attention to warning messages
38 \-sampling-factor geometry
39 horizontal and vertical sampling factor
40 \-seed value seed a new sequence of pseudo-random numbers
41 \-set attribute value set an image attribute
42 \-size geometry width and height of image
43 \-strip strip image of all profiles and comments
44 \-unique display the number of unique colors in the image
45 \-units type the units of image resolution
46 \-verbose print detailed information about the image
47 \-virtual-pixel method
48 virtual pixel access method
51 \-negate replace each pixel with its complementary color
53 Miscellaneous Options:
54 \-debug events display copious debugging information
55 \-help print program options
56 \-log format format of debugging information
57 \-list type print a list of supported option arguments
58 \-version print version information
60 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.
62 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.
68 \fBCopyright (C) 1999-2012 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see file://@DOCUMENTATION_PATH@/www/license.html or http://www.imagemagick.org/script/license.php\fP