=J D H C ImageMagick - Image Processing and Display Package; C
F Identify

 
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>Contents

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>Synopsis




4identify file [ file ... ]

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Ý
>Description




GIdentify describes the format and characteristics of one or moreFimage files. It will also report if an image is incomplete or corrupt.GThe information displayed includes the scene number, the file name, theGwidth and height of the image, whether the image is colormapped or not,Hthe number of colors in the image, the number of bytes in the image, theHformat of the image (JPEG, PNM, etc.), and finally the number of secondsRit took to read and process the image. An example line output from identify follows:
[
    images/aquarium.miff 640x480 PseudoClass 256c 308135b MIFF 1s
IIf -verbose is set, expect additional output including any imagecomment:3
    Image: images/aquarium.miff1      class: PseudoClass*      colors: 256J      signature: eb5dca81dd93ae7e6ffae99a5275a53e+      matte: False0      geometry: 640x480'      depth: 8,      bytes: 308135+      format: MIFF(      comments: c        Imported from MTV raster image:  aquarium.mtv

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Ù
>Options




FOptions are processed in command line order. Any option you specify onOthe command line remains in effect until it is explicitly changed by specifying.the option again with a different effect.


 

º
>-cache.threshold
<
megabytes of memory available to the pixel cache.


B

Image pixels are stored in memory until 80 megabytes of memoryDhave been consumed. Subsequent pixel operations are cached on disk.KOperations to memory are significantly faster but if your computer does notMhave a sufficient amount of free memory you may want to adjust this threshold value.


×
>-ping

1efficiently determine image characteristics.




KThis is a more efficient and less memory intensive way to query if an imageFexists and what its size is. Note, only the size of the first image in*a multi-frame image file is returned.





¹
>-sizeL<width>{%}x<height>{%}{+offset}{!}

#width and height of the image.




NUse this option to specify the width and height of raw images whose dimensions are unknown such as GRAY,'RGB, or CMYK. In additionto width and height, use.-size to skip any header information inHthe image or tell the number of colors in a MAP image file, (e.g.-size 640x512+256).




2For Photo CD images, choose from these sizes:

   192x128   384x256   768x512   1536x1024   3072x2048

JFinally, use this option to choose a particular resolution layer of a JBIG)or JPEG image (e.g. -size 1024x768).





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>-verbose

0print detailed information about the image.




LThis information is printed: image name; the image class (DirectClassHor PseudoClass); the total number of unique colors; whether thereFis a matte associated with the image; the number of runlength packets;Jthe image size; the depth of the image; the image format; the image scene;'and finally any image comment. Refer to miff for&a description of the image class.

 

 

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Ù
>Authors




cJohn Cristy, magick@wizards.dupont.com=E.I. du Pont de Nemours and Company Incorporated.

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Û
>Copyright




1Copyright (C) 2000 ImageMagick Studio




HPermission is hereby granted, free of charge, to any person obtainingKa copy of this software and associated documentation files ("ImageMagick"),Hto deal in ImageMagick without restriction, including without limitationHthe rights to use, copy, modify, merge, publish, distribute, sublicense,Pand/or sell copies of ImageMagick, and to permit persons to whom the ImageMagickDis furnished to do so, subject to the following conditions:




JThe above copyright notice and this permission notice shall be included>in all copies or substantial portions of ImageMagick.




JThe software is provided "as is", without warranty of any kind, expressKor implied, including but not limited to the warranties of merchantability,Ffitness for a particular purpose and noninfringement.In no event shall6ImageMagick Studio be liable for any claim, damages orMother liability, whether in an action of contract, tort or otherwise, arisingKfrom, out of or in connection with ImageMagick or the use or other dealingsin ImageMagick.




GExcept as contained in this notice, the name of the E. I. du Pont deLNemours and Company shall not be used in advertising or otherwise to promoteRthe sale, use or other dealings in ImageMagick without prior written authorization%from the ImageMagick Studio.

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