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Pnmstitch User Manual(0)						 Pnmstitch User Manual(0)

NAME
       pnmstitch - stitch together two panoramic (side-by-side) photographs

SYNOPSIS
       pnmstitch  [ [left_filespec] right_filespec | left_filespec right_filespec output_filespec
       ]      [-width=width]	  [-height=height]	[-xrightpos=column]	 [-yrightpos=row]
       [-stitcher={RotateSliver,  BiLinearSliver,LinearSliver}] [-filter={LineAtATime,Horizontal-
       Crop}] [-output=output_filespec] [-verbose]

       All options can be abbreviated to their shortest unique prefix.	You may use  two  hyphens
       instead of one.	You may separate an option name and its value with white space instead of
       an equals sign.

DESCRIPTION
       This program is part of Netpbm(1)

       pnmstitch stitches together two panoramic photographs.  This means if you have photographs
       of  the	left  and right side of something that is too big for a single camera frame, pnm-
       stitch can join them into one wide picture.

       pnmstitch works only on side-by-side images, not top and bottom	(though  you  could  cer-
       tainly  use  pamflip in combination with pnmstitch to achieve this).  It stitches together
       two images, but you can use it repeatedly to stitch together as many as you need to.

       Your photographs must overlap in order for pnmstitch to work, and the  overlap  should  be
       substantial.   pnmstitch shifts and stretches the right hand image to match it up the left
       hand image.  You probably want to crop the result with pamcut to make a	nice  rectangular
       image.

       If you're just trying to join (concatenate) two images at their edges, use pnmcat.

       The  left_filespec  and right_filespec arguments are the specifications (names) of the PNM
       files containing the left hand and right hand images.  If you specify only right_filespec,
       the  left  hand image comes from Standard Input.  If you specify neither, both images come
       from Standard Input as a multi-image file containing first the left  and  then  the  right
       image.

       output_filespec	is  the  specification (name) of the output PNM file.  The -output option
       also specifies the output file.	You cannot specify both the argument and the option.   If
       you specify neither, the output goes to Standard Output.

OPTIONS
       -width=width

       -height=height

       -xrightpos=column

       -yrightpos=row
	      These  are  constraints  on  where pnmstitch stitches the images together.  For the
	      LinearSliver method, column and row tell what location  in  the  right  hand  image
	      matches up to the top right corner of the left hand image.

       -stitcher={RotateSliver,BiLinearSliver,
	      LinearSliver} The default is RotateSliver.

       -filter={LineAtATime,HorizontalCrop}
	      No details available.

       -output=output_filespec
	      Name  of	output	file.  If you don't specify this option, the output image goes to
	      Standard Output.

       -verbose
	      This option causes pnmstitch to issue messages to Standard Error about the  stitch-
	      ing process.

SEE ALSO
       pamcut(1) , pnmcat(1) , pamflip(1) , pnm(1) ,

HISTORY
       This program was added to Netpbm in Release 10.7 (August 2002).

netpbm documentation			    July 2002			 Pnmstitch User Manual(0)
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