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Man Pages


Manual Reference Pages  -  SCALERX (1)

NAME

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

CONTENTS

Synopsis
Description
Options
Copyright

SYNOPSIS

scalerx [-k N] [-w] [-r N] input.png output.png

DESCRIPTION

Scale2x, Scale3x and Scale4x are real-time graphics effects able to increase 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 resolutions.

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 algorithm '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
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