pfssize(1) [suse man page]

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)

pfsoutjpeghdr(1)					      General Commands Manual						  pfsoutjpeghdr(1)

NAME

       pfsoutjpeghdr - Write images or frames in JPEG-HDR format

SYNOPSIS

       pfsoutjpeghdr (<file> [--linear] [--quality <val>] [--correction <correct>] [--frames <range>])	[<file>...]

DESCRIPTION

       Use  this  command to write JPEG file with HDR extension. This software makes use of the High Dynamic Range Imaging Library from Sunnybrook
       Technologies Inc. (c) Sunnybrook Inc. 2005

OPTIONS

       --quality <val>, -q <val>
	      The --quality setting controls the overall compression/quality trade-off, with 100 being the maximum setting, producing  the  lowest
	      losses  and  the largest output files.  Quality settings below 70 may result in significant image degradation, and should be avoided
	      in critical applications. Default: --quality=90

       --correction <correct>, -c <correct>
	      The --correction setting controls the algorithm used during downsampling of the HDR ratio image data.  The default precorrect option
	      compensates  for	resampling  errors by adjusting the tone-mapped image to maximize the accuracy of the HDR result.  This option may
	      sometimes induce modest halo artifacts in the tone-mapped image at lower quality settings.  If the tone-mapped  (backwards  compati-
	      ble)  image  is  more  important than the HDR version, the postcorrect option may be used, instead.  To avoid all artifacts from HDR
	      resampling, specify the fullsamp option. This will result in slightly larger image files. Default: --correction=precorrect

       --alpha <a>, -a <a>; --beta <b>, -b <b>
	      The --alpha and --beta settings control color desaturation during tone-mapping, which will also permits  super-saturated	colors	to
	      pass  through  safely.   (See  the appendix of the paper by Ward and Simmons cited below for details.) Use --alpha < 1 to desaturate
	      colors and --beta > 1 to enhance color saturation contrast. Any input color space will be converted to the standard YCC color  space
	      of JPEG, based on the CCIR-709 (sRGB) primaries. Default: --alpha=1, --beta=1.

EXAMPLES

	pfsin memorial.hdr | pfsoutjpeghdr memorial.jpeg

BUGS

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

SEE ALSO

       pfsinjpeghdr(1) Subband Encoding of High Dynamic Range ImagerybyWardandSimmons (www.anyhere.com/gward/papers/apgv04)

																  pfsoutjpeghdr(1)