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Scale a	.P...le	effects(1)  General Commands Manual Scale a .P...le effects(1)

NAME
       scalerx	- Scale	a .PNG image using the reference implementation	of the
       Scale effects

SYNOPSIS
       scalerx [-k N] [-w] [-r N] input.png output.png
DESCRIPTION
       Scale2x,	Scale3x	and Scale4x are	real-time graphics effects able	to in-
       crease the size of small	bitmaps	guessing the  missing  pixels  without
       blurring	the images.

       They  were originally developed for the AdvanceMAME project in the year
       2001 to improve the quality of old games	running	at low	video  resolu-
       tions.

       The specification of the	algorithm and more details are at:

	   http://scale2x.sourceforge.net
       These  command line tools read a	.PNG file and write another image with
       the effects applied.

       The reference implementation of the Scale effects is used.

OPTIONS
       -k N, --scale N
	      Select the scale factor. Available values	are 2,	2x3,  2x4,  3,
	      and 4.

       -w, --wrap
	      Compute the image	border for a wraparound	effect.

       -r N   Select a specific	revision of the	effect.	 The default is	scaleX
	      using  algorithm 'x' or '1'.  To select the new scaleK use algo-
	      rithm 'k'	or '2'.	 To scale an image without any effect use  the
	      value  '0'.   Other nunbers are alternative versions.  Refers at
	      the source implementation	for more details.

COPYRIGHT
       This file is Copyright (C) 2003,	2004 Andrea Mazzoleni

						    Scale a .P...le effects(1)

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<https://man.freebsd.org/cgi/man.cgi?query=scalerx&sektion=1&manpath=FreeBSD+Ports+15.0>

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