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Pammosaicknit User Manual(0)			  Pammosaicknit	User Manual(0)

       Table Of	Contents <#contents>

NAME
       pammosaicknit - validate	a mosaic knitting pattern

SYNOPSIS
       pammosaicknit [in_netpbmfile]

DESCRIPTION
       This program is part of Netpbm(1).

       pammosaicknit   helps   the   user   create  mosaic  knitting  patterns
       <http://en.wikipedia.org/wiki/Slip-stitch_knitting#Mosaic_knitting>   .
       The  program inputs a black-and-white Netpbm image that describes a mo-
       saic knitting pattern and outputs a color Netpbm	image of the same pat-
       tern but	with invalid runs shown	in red.

       A  valid	 knitting  pattern starts with a "black" row on	the bottom and
       alternates "white" and "black" rows. A "black" row can contain any  ar-
       rangement of black pixels but no	more than three	consecutive white pix-
       els. A "white" row can contain any arrangement of white pixels  but  no
       more than three consecutive black pixels. Columns wrap horizontally, so
       a "white" row that both begins and ends with two	black pixels is	deemed
       to  contain  four  consecutive black pixels. Because this is an invalid
       number for a "white" row, those four pixels will	be  recolored  red  in
       the output image.

       For clarity, there are two shades of red	in the output image.  Dark red
       pixels indicate pixels that were	black in the  input  image  but	 which
       must contain one	or more	white pixels. Light red	pixels indicate	pixels
       that were white in the input image but which must contain one  or  more
       black pixels.

       If the output image contains no red pixels, then	the input image	repre-
       sents a valid mosaic knitting pattern.

ARGUMENTS
       pammosaicknit's only argument, in_netpbmfile, is	the name of  an	 image
       file  that  represents  a mosaic	knitting pattern. If you don't specify
       in_netpbmfile, the program reads	the image from Standard	Input.

NOTES
       If the input image is not a black-and-white image,  pammosaicknit  con-
       verts it	internally to black and	white by thresholding each pixel's lu-
       minosity. The output image is always a color image containing  at  most
       four colors (black, white, dark red, light red).

SEE ALSO
       o

	      pam(5)

HISTORY
       pammosaicknit was new in	Netpbm 10.53 (December 2010).

AUTHOR
       Copyright (C) 2010 Scott	Pakin, scott+pbm@pakin.org.

Table Of Contents
       o

	      SYNOPSIS <#synopsis>

       o

	      DESCRIPTION <#description>

       o

	      ARGUMENTS	<#arguments>

       o

	      NOTES <#notes>

       o

	      SEE ALSO <#see_also>

       o

	      HISTORY <#history>

       o

	      AUTHOR <#author>

DOCUMENT SOURCE
       This  manual  page was generated	by the Netpbm tool 'makeman' from HTML
       source.	The master documentation is at

	      http://netpbm.sourceforge.net/doc/pammosaicknit.html

netpbm documentation	       12 December 2010	  Pammosaicknit	User Manual(0)

NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | NOTES | SEE ALSO | HISTORY | AUTHOR | Table Of Contents | DOCUMENT SOURCE

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