OS Manuals

/usr/bin/exr2aces

High dynamic-range image file format library

From openexr 3.5.3-r0 (os), captured 2026-11-05 by running exr2aces --help (exit 0). permalink

Warning: /usr/bin/exr2aces is deprecated and will be removed from distribution in an upcoming release.
Usage: exr2aces [options] infile outfile

Read an OpenEXR file from infile and save the contents
in ACES image file outfile.

The ACES image file format is a subset of the OpenEXR file
format.  ACES image files are restricted as follows:

  * Images are stored as scanlines; tiles are not allowed.
  * Images contain three color channels, either:
      R, G, B (red, green, blue)
    or:
      Y, RY, BY (luminance, sub-sampled chroma)
  * Images may optionally contain an alpha channel.
  * Only three compression types are allowed:
      NO_COMPRESSION (file is not compressed)
      PIZ_COMPRESSION (lossless)
      B44A_COMPRESSION (lossy)
  * The "chromaticities" header attribute must specify
    the ACES RGB primaries and white point.

Options:
  -v, --verbose     verbose mode
  -h, --help        print this message
      --version     print version information

Report bugs via https://github.com/AcademySoftwareFoundation/openexr/issues or email security@openexr.com
Options (3)
OptionDescriptionSource
-v, --verboseverbose modehelp
-h, --helpprint this messagehelp
--versionprint version informationhelp

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.