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pfssize(1)		    General Commands Manual		    pfssize(1)

NAME
       pfssize - Resize	frames

SYNOPSIS
       pfssize	[--x  <new_width>]  [--y <new_height>] [--ratio	<scale_ratio>]
       [--maxx <max_width>] [--maxy <max_heigh>] [--minx <max_width>]  [--miny
       <max_heigh>] [--filter <filter-name>]

DESCRIPTION
       Resize  all frames and all channels in the stream. Note that resampling
       is done on each channel as it is	- for color images resampling is  usu-
       ally done in linear (not	gamma corrected) XYZ color space.

OPTIONS
       --x <new_width>,	-x <new_width>

	      New x resolution in pixels.

       --y <new_height>, -y <new_height>

	      New y resolution in pixels.

       --ratio <scale_ratio>, -r <scale_ratio>

	      Resize  both width and height using the given ratio. Ratio equal
	      1	is the original	size, lower than 1 makes  the  frames  smaller
	      and greater than 1, enlarges the frames.

       --minx <max_width>, --miny <max_heigh>

	      Make  sure  that	the  resulting	image has at least <min_width>
	      width and/or <min_height>	height.	Cannot be used in  combination
	      with -x, -y and --ratio.

       --maxx <max_width>, --maxy <max_heigh>

	      Make sure	that the resulting image has at	most <max_width> width
	      and/or <max_height> height. Cannot be used in  combination  with
	      -x, -y and --ratio.

       --filter	<filter-name>, -f <filter-name>

	      Use  filter  <filter-name>  for upsampling (on downsampling, box
	      filter is	always used). Available	filters:

	      BOX Box filter. This is the fastest and the filter, but it  also
	      causes visible aliasing artifacts.

	      LINEAR (default) Bi-linear filter.

	      MITCHELL	Mitchell  filter.  From	Mitchell and Netravali,	Recon-
	      struction	Filters	in  Computer  Graphics,In  Computer  Graphics,
	      vol.  22	(4) 1988. Since	the filter contains negative parts, it
	      may cause	halo artifacts and it may result  in  negative	values
	      for HDR images.

EXAMPLES
       pfsin memorial.hdr | pfssize -r 0.25 | pfsout memorial_small.hdr

	      Lower the	resolution of memorial.hdr four	times.

SEE ALSO
       pfsin(1)	pfsout(1)

BUGS
       Please	report	bugs  and  comments  to	 Rafal	Mantiuk	 <mantiuk@mpi-
       sb.mpg.de>.

								    pfssize(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | BUGS

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