pfspad(1) [debian man page]

pfspad(1)						      General Commands Manual							 pfspad(1)

NAME

       pfspad - Add borders to a frame in PFS stream

SYNOPSIS

       pfspad  [--left	<columns>]  [--right <columns>] [--top <rows>] [--bottom <rows>] [--width <new_width>] [--height <new_height>] [--R <val>]
       [--G <val>] [--B <val>] [--Y <val>] [--help]

DESCRIPTION

       Add borders to each frame in PFS stream. User specifies size of left, right, top and bottom border or size of an  output  image.  Color	of
       borders can be specified as well.

OPTIONS

       --left <columns>, -l <columns>
	      Width in pixels of the left border.

       --right <columns>, -r <columns>
	      Width in pixels of the right border.

       --top <rows>, -t <rows>
	      Height in pixels of the top border.

       --bottom <rows>, -b <rows>
	      Height in pixels of the bottom border.

       --width <new_width>, -W <new_width>
	      Width of an output image. Note that --width can be mixed with either --left or --right option.

       --height <new_height>, -H <new_height>
	      Height of an output image. Note that --height can be mixed with either --top or --bottom option.

       --R <val>, -R <val>, --G <val>, -G <val>, --B <val>, -B <val>
	      Color of borders in RGB mode. Default color is black, and if some of the components is not specified, its value is set to 0.0.

       --Y <val>, -Y <val>
	      Color of borders in luminance mode.

       --help, -h
	      Print a list of commandline options.

EXAMPLES

       pfsin image.hdr | pfspad --left 50 --bottom 20 | pfsout out.hdr
	      Add 50 columns to the left and 20 rows to the bottom side of image.hdr.  Color of borders is default black.

       pfsin image.hdr | pfspad --top 20 --height 500 --width 400 --R 1.0 | pfsout out.hdr
	      Add 20 rows to the top side of image.hdr and create output image out.hdr 500 pixels in height and 400 pixels in width. Color of bor-
	      ders is set to red.

SEE ALSO

       pfsin(1) pfsout(1)

BUGS

       Please report bugs and comments to Dorota Zdrojewska <dzdrojewska@wi.ps.pl>.

																	 pfspad(1)

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
       usually 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 (deafult) Bi-linear filter.

	      MITCHELL Mitchell filter. From Mitchell and Netravali, Reconstruction 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)