NAME
pfsinexr - Load images or frames in OpenEXR format
SYNOPSIS
pfsinexr [--keep-rgb] (<file> [--frames <range>] [--skip-missing])
[<file>...]
DESCRIPTION
Use this command to read frames in OpenEXR format. The frames are
converted to pfs stream and send to the standard output. This command
can read arbitrary channels from OpenEXR files; color channels XYZ are
however specially handled (see option keep-rgb).
pfsinexr reads also all string attributes from OpenEXR file and write
them as tags in pfs stream. Attributes of other types are ignored. If
attribute name contains a colon (:), the part before colon is treated
as a channel name and the attribute is assigned to that channel
(similar notation as command line argument of pfstag program).
pfsinexr recognizes OpenEXR standard attribute WhiteLuminance and
multiplies the data by that value to get absolute luminance values (see
also --fix-halfmax switch in pfsoutexr). Additionally the tag LUMINANCE
is set to ABSOLUTE unless OpenEXR files contains attribute LUMINANCE
set to semething else. That is the channel Y is assumued to represent
absolute luminance levels in cd/m^2.
If an OpenEXR file contains ’Z’ channel, it is renamed to ’DEPTH’ to
avoid conflict with the Z color channel for the XYZ color space.
Details on the format of the pattern file names, which are used for
reading multiple frames, can be found in the manual page of pfsinppm.
To automatically recognize a file format from the extension, use pfsin
command instead.
--keep-rgb
By default, color channels R, G and B from an OpenEXR file are
converted to XYZ color space, which is suggested format for
color data in pfs. When keep-rgb option is specified, color
channels RGB are stored as they are without any conversion.
EXAMPLES
pfsin memorial.exr | pfsout memorial.hdr
Converts from one HDR format to another
BUGS
pfsinexr and pfsoutexr can not take stdin / stdout as an input/output
(dash ’-’ instead of file name).
Please report bugs and comments on implementation to the discussion
group http://groups.google.com/group/pfstools
SEE ALSO
pfsin(1) pfsinppm(1) pfsoutexr(1)
pfsinexr(1)