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/local/share/doc/ImageMagick-7/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 \-clip clip along the first path from the 8BIM profile
18 \-clip-mask filename associate a clip mask with the image
19 \-clip-path id clip along a named path from the 8BIM profile
20 \-colorspace type alternate image colorspace
21 \-crop geometry cut out a rectangular region of the image
22 \-define format:option
23 define one or more image format options
24 \-define unique=true return the number of unique colors in the image
25 \-density geometry horizontal and vertical density of the image
26 \-depth value image depth
27 \-endian type endianness (MSB or LSB) of the image
28 \-extract geometry extract area from image
29 \-features distance analyze image features (e.g. contrast, correlation)
30 \-format "string" output formatted image characteristics
31 \-fuzz distance colors within this distance are considered equal
32 \-gamma value of gamma correction
33 \-interlace type type of image interlacing scheme
34 \-interpolate method pixel color interpolation method
35 \-limit type value pixel cache resource limit
36 \-list type Color, Configure, Delegate, Format, Magic, Module,
38 \-matte store matte channel if the image has one
39 \-moments report image moments
40 \-monitor monitor progress
41 \-ping efficiently determine image attributes
42 \-precision value maximum number of significant digits to print
43 \-quiet suppress all warning messages
44 \-read-mask filename associate a read mask with the image
45 \-regard-warnings pay attention to warning messages
46 \-respect-parentheses settings remain in effect until parenthesis boundary
47 \-sampling-factor geometry
48 horizontal and vertical sampling factor
49 \-seed value seed a new sequence of pseudo-random numbers
50 \-set attribute value set an image attribute
51 \-size geometry width and height of image
52 \-strip strip image of all profiles and comments
53 \-unique display the number of unique colors in the image
54 \-units type the units of image resolution
55 \-verbose print detailed information about the image
56 \-virtual-pixel method
57 virtual pixel access method
60 \-channel mask set the image channel mask
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) 1999-2018 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see file:///usr/local/share/doc/ImageMagick-7/www/license.html or http://www.imagemagick.org/script/license.php\fP