Provided by: pfstools_2.0.4-5build1_amd64 
NAME
pfsoutrgbe - Write images or frames in Radiance RGBE format
SYNOPSIS
pfsoutrgbe [--verbose] [--radiance] [--quiet] (<file> [--frames <range>]) [<file>...]
DESCRIPTION
Use this command to the incoming pfs frames (piped to standard input) to Radiance RGBE files (with .hdr
extension).
Each file name can contain a %d pattern, which is substituted with frame numbers. The pattern has the
same syntax as C printf command. For example, you can use %04d to make the frame number four digit with
proceedings zeros. You can select the frames using --frames option (see below).
OPTIONS
--frames <range>
The range of frames is given in a format similar to matlab or octave:
startframe:step:endframe
Frame numbers start with startframe (default 0), are increased by step (default 1) and stop at
endframe You can skip one of those values, for example 1:100 for frames 1,2,...,100 and 0:2: for
frame 0,2,4,... up to the last file that exists. Note that --frames option must be specified after
the file name containing %d string. higher bit depths.
--radiance, -r
Correct stored values so that the luminance is reported the same in pfsview and radiance tools
(xview or Photospheare). See IMPORTANT NOTE below.
--quiet, -q
Disable warning message about the change in handling absolute values in RGBE files. See IMPORTANT
NOTE below.
EXAMPLES
pfsin memorial.tiff | pfsoutrgbe memorial.hdr
Converts from one HDR format to another
pfsin test.jpg | pfsout test.png
Convert from one image format to another.
SEE ALSO
pfsout(1) pfsinppm(1)
IMPORTANT NOTE
There is an incompatibility between viewers of RGBE format in terms of absolute luminance values. The
ximage viewer from Radiance package expects radiance values in RGBE files and multiplies the resulting
luminance by the WHITE_EFFICACY constant equal to 179.0f to convert from radiance to luminance.
To remain compatible with Radiance (xview and Photospheare), pfstools prior to 1.9.0 divided red, green
and blue values by 179 on writing and multiplied by that constant on reading RGBE files. This in turn
caused incompatibility with other software, such as Photoshop or HDR toolbox. Starting from pfstools
1.9.0 this division / multiplication step was removed to make pfstools compatible in terms of absolute
values with the majority of the software. The downside is that this change made luminance units) with the
pfstools 1.9.0 or later. To avoid any mistakes because of that change, a long warning messages is shown
each time pfsinrgbe or pfsoutrgbe is called. The message can be suppressed with --quiet option.
To enable the old functionality and read or write RGBE files with the correction for WHITE_EFFICACY, add
--radiance option to the command line.
BUGS
Please report bugs and comments on implementation to the discussion group
http://groups.google.com/group/pfstools
pfsoutrgbe(1)