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 \-alpha option on, activate, off, deactivate, set, opaque, copy
14 transparent, extract, background, or shape
15 \-antialias remove pixel-aliasing
16 \-authenticate value decrypt image with this password
17 \-channel type apply option to select image channels
18 \-clip clip along the first path from the 8BIM profile
19 \-clip-mask filename associate a clip mask with the image
20 \-clip-path id clip along a named path from the 8BIM profile
21 \-colorspace type alternate image colorspace
22 \-crop geometry cut out a rectangular region of the image
23 \-define format:option
24 define one or more image format options
25 \-define unique=true return the number of unique colors in the image
26 \-density geometry horizontal and vertical density of the image
27 \-depth value image depth
28 \-endian type endianness (MSB or LSB) of the image
29 \-extract geometry extract area from image
30 \-features distance analyze image features (e.g. contrast, correlation)
31 \-format "string" output formatted image characteristics
32 \-fuzz distance colors within this distance are considered equal
33 \-gamma value of gamma correction
34 \-interlace type type of image interlacing scheme
35 \-interpolate method pixel color interpolation method
36 \-limit type value pixel cache resource limit
37 \-list type Color, Configure, Delegate, Format, Magic, Module,
39 \-mask filename associate a mask with the image
40 \-matte store matte channel if the image has one
41 \-moments report image moments
42 \-monitor monitor progress
43 \-ping efficiently determine image attributes
44 \-precision value maximum number of significant digits to print
45 \-quiet suppress all warning messages
46 \-regard-warnings pay attention to warning messages
47 \-respect-parentheses settings remain in effect until parenthesis boundary
48 \-sampling-factor geometry
49 horizontal and vertical sampling factor
50 \-seed value seed a new sequence of pseudo-random numbers
51 \-set attribute value set an image attribute
52 \-size geometry width and height of image
53 \-strip strip image of all profiles and comments
54 \-unique display the number of unique colors in the image
55 \-units type the units of image resolution
56 \-verbose print detailed information about the image
57 \-virtual-pixel method
58 virtual pixel access method
61 \-grayscale method convert image to grayscale
62 \-negate replace each pixel with its complementary color
64 Miscellaneous Options:
65 \-debug events display copious debugging information
66 \-help print program options
67 \-list type print a list of supported option arguments
68 \-log format format of debugging information
69 \-version print version information
71 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.
73 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.
79 \fBCopyright (C) 1999-2014 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