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OpenSolaris 2009.06 - man page for thumbnail (opensolaris section 1)

thumbnail(1)				  User Commands 			     thumbnail(1)

NAME
       thumbnail - create a TIFF file with thumbnail images

SYNOPSIS
       thumbnail [options] input.tif output.tif

DESCRIPTION
       The  thumbnail  command	shows how to use the SubIFD tag (#330) to store thumbnail images.
       thumbnail copies a TIFF Class F facsimile file to the output file and, for each image,  an
       8-bit  grayscale  thumbnail  sketch. The output file contains the thumbnail image with the
       associated full-resolution page linked below with the SubIFD tag.

       By default, thumbnail images are 216 pixels wide by 274 pixels high.   Pixels  are  calcu-
       lated  by  sampling  and  filtering the input image with each pixel value passed through a
       contrast curve.

OPTIONS
       The following options are supported:

       -c	       Specify a contrast curve to apply when generating the thumbnail images. By
		       default, pixel values are passed through a linear contrast curve that sim-
		       ply maps the pixel value ranges. Alternative curves are as follows:

		       exp50		       50% exponential curve

		       exp60		       60% exponential curve

		       exp70		       70% exponential curve

		       exp80		       80% exponential curve

		       exp90		       90% exponential curve

		       exp		       pure exponential curve

		       linear		       linear curve

       -h	       Specify the height of thumbnail images in pixels.

       -w	       Specify the width of thumbnail images in pixels.

OPERANDS
       The following operands are supported:

       input.tif       The name of the input TIFF file.

       output.tif      The name of the output file.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWTiff			   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |Uncommitted		   |
       +-----------------------------+-----------------------------+

SEE ALSO
       tiffdump(1), tiffgt(1), tiffinfo(1), libtiff(3)

NOTES
       There are no options to control the format of the saved thumbnail images.

       Updated by Breda McColgan, Sun Microsystems Inc., 2004.

SunOS 5.11				   26 Mar 2004				     thumbnail(1)


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