pfsin(1)pfsin(1)NAMEpfsin - Read an image in one of the several formats and write pfs
stream to the standard output
SYNOPSISpfsin <file> [<file>...]
DESCRIPTION
This command can be used to read high- or low- dynamic range image in
several recognized formats and output pfs stream on standard output.
The pfs stream is usually piped to another program for further process‐
ing (see examples). To get a list of recognized formats and extensions,
execute:
pfsin--help
This command is a front-end for pfsin* programs for reading images:
pfsinrgbe, pfsinexr, etc. Based on the file extension, appropriate pro‐
gram is executed. If two different file format are given as parameters,
two different program for loading images are executed. Additional
options starting with dash '-' can be passed to pfsin* programs. The
following rules apply for passing the options: the options given before
any image file name (or %d pattern) are passed to all pfsin* programs.
Options given after image file name are only passed to the program exe‐
cuted for that file(s). Note also that all option that take an argument
(except --frames) must given in the form --option=value, that is with‐
out a space between an option and its argument.
OPTIONS
The following options are shared by most pfsin* commands, although some
may not accept --absolute and may ignore --linear.
--frames <range>
Range is given in mathlab / octave format:
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 frames 0,2,4,... up to the last file that exists.
--skip-missing
Skip up to ten frames in a row if corresponding files are miss‐
ing. Otherwise the program stops reading sequence at the first
file that does not exists. This switch does not apply to the
first frame in a sequence. This switch can be useful if there is
a rendered animation where some of the frame has not been gener‐
ated.
--linear, -l
Converts pixel values to linear luminance (XYZ), assuming the
sRGB color space for the input image. The maximum pixel value
(255,255,255) is mapped to Y=1. LUMINANCE tag is set to RELA‐
TIVE.
--absolute <max_lum>, -a <max_lum>
--absolute converts pixel values to an absolute linear luminance
(XYZ), that is the color space, in which channel Y contains
luminance given in cd/m^2. The sRGB color space is assumed for
the input image. The maximum pixel value (255,255,255) is mapped
to Y=<max_lum>. <max_lum> is typically set to 80 [cd/m^2] for a
CRT monitor. LUMINANCE tag is set to ABSOLUTE. --absolute
process images almost the same as --relative, but additionally
it scales all pixels by <max_lum>.
EXAMPLESpfsin memorial.pic | pfsview
See a hdr image in Radiance format (RGBE).
pfsin memorial.pic | pfstmo_drago03 | pfsout memorial.jpeg
Tone map a hdr image and save it as JPEG.
SEE ALSOpfsout(1)pfsinppm(1)BUGS
For LDR formats - JPEG, PNG, PNM: If pfstools are compiled without
ImageMagic support, this command currently will not handle multiple
frames given with a %d pattern.
Please report bugs and comments on implementation to the discussion
group http://groups.google.com/group/pfstools
pfsin(1)
