ImageMagick - Describe an Image or Image Sequence
Description: ImageMagick is a robust collection of tools and libraries to read, write, and manipulate an image in many image formats including popular formats like TIFF, JPEG, PNG, PDF, PhotoCD, and GIF. With ImageMagick you can create images dynamically, making it suitable for Web applications. You can also resize, rotate, sharpen, color reduce, or add special effects to an image or image sequence and save your completed work in the same or differing image format. Image processing operations are available from the command line, as well as through C, C++, Perl, or Java programming interfaces.
Keywords: ImageMagick,PerlMagick,GraphicsMagick,Magick++,Image,Magick,Magic,Pixel,Graphics,Perl,Wand

NAME
| identify - describe an image or image sequence.
Contents
| Synopsis Description Options Authors Copyright
Synopsis
| identify file [ file ... ]
Description
| Identify describes the format and characteristics of one or more image files. It will also report if an image is incomplete or corrupt. The information displayed includes the scene 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, 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. An example line output from identify follows:
        aquarium.miff MIFF 640x480+0+0 PseudoClass 256c 8-bit 300.9kb 0.020u 0:01
If `-verbose` is set, expect additional output including any image comment:
        Image: aquarium.miff
        Geometry: 640x480
        Class: PseudoClass
        Type: palette
        Depth: 8 bits-per-pixel component
        Colors: 256
        Resolution: 72x72 pixels
        Filesize: 300.9kb
        Interlace: None
        Background Color: grey100
        Border Color: #DFDFDF
        Matte Color: grey74
        Dispose: Undefined
        Iterations: 0
        Compression: None
        comment: Imported from MTV raster image:  aquarium.mtv
        signature: 3ee95d2f4629a543771321ebc46d958fb228b08d428cb321ebc8d470bc7d6165
        Tainted: False
        User Time: 0.030u
        Elapsed Time: 0:01
For some formats, additional format-specific information about the file will be written if the `-debug coder` or `-debug all` option is used.
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Options
| Options are processed in command line order. Any option you specify on the command line remains in effect for the set of images immediately following, until the set is terminated by the appearance of any option or -noop. For a more detailed description of each option, see ImageMagick(1).
| -authenticate <string>
| decrypt image with this password
| -cache <threshold>
| (This option has been replaced by the -limit option)
| -debug <events>
| enable debug printout
| -density <width>x<height>
| vertical and horizontal resolution in pixels of the image
| -depth <value>
| depth of the image
| -extract <width>x<height>{+-}<x>{+-}<y>{%}{@} {!}{<}{>}
| extract an area from the image while decoding
| -format <string>
| output formatted image characteristics
| -help
| print usage instructions
| -interlace <type>
| the type of interlacing scheme
| -limit <type> <value>
| Disk, File, Map, or Memory resource limit
| -list <type>
| the type of list
| -log <string>
| -ping
| efficiently determine image characteristics
| -sampling-factor <horizontal_factor>x<vertical_factor>
| sampling factors used by JPEG or MPEG-2 encoder and YUV decoder/encoder.
| -size <width>x<height>{+offset}
| width and height of the image
| -verbose
| print detailed information about the image
| -version
| print ImageMagick version string
For a more detailed description of each option, see ImageMagick(1).
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Authors
| John Cristy, magick-users@imagemagick.org, ImageMagick Studio LLC, Glenn Randers-Pehrson, randeg@alum.rpi.edu, ImageMagick Studio LLC.
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Copyright
| Copyright (C) 2003 ImageMagick Studio Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files ("ImageMagick"), to deal in ImageMagick without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of ImageMagick, and to permit persons to whom the ImageMagick is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of ImageMagick. The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement.In no event shall ImageMagick Studio be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with ImageMagick or the use or other dealings in ImageMagick. Except as contained in this notice, the name of the ImageMagick Studio LLC shall not be used in advertising or otherwise to promote the sale, use or other dealings in ImageMagick without prior written authorization from the ImageMagick Studio.
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