mkhdr is a tool designed to convert a series of still images into a high
dynamic range image. mkhdr also allows for the recovery of the response characteristics of a given imaging system. The recovered information may be
saved and used to speed up future conversions. The techniques used in mkhdr are
based on the paper Recovering High Dynamic Range Radiance Maps from Photographs published in SIGGRAPH 97.
The mkhdr program was created by H.P Duiker, Tim Hawkins, and Paul Debevec.
The solution routines used in mkhdr were provided by LAPACK, a freely available
linear algebra package. mkhdr outputs high dynamic range images in the
format supported by Greg Ward Larson’s Radiance
rendering system, or in floating point TIFF format.
High Dynamic Range images may be viewed using the HDRView utility program for Windows NT.
Please let us know about any problems you may have using it.
For questions about commercial use of mkhdr commercially, please
see the licensing information below.
The source code, as well as precompiled binaries for x86
Linux, IRIX, SunOS, and Windows NT are available for direct
download. An example high dynamic range image and the sequence of
images from which it was derived is also available.
Example HDR image and original sequence
A readme that is included
with the source file distribution is also available online.
mkhdr is Copyright ©1999. The
Regents of the University of California (Regents). All Rights
Permission is hereby granted to use, copy, modify, display
and distribute this software and documentation for
educational purposes only, provided that the above copyright
notice, this paragraph, and the following two paragraphs
appear in all copies, modifications, displays and
distributions. The University has patented an apparatus and
method of recovering high dynamic range radiance maps using
algorithms embodied in this software. For use of this
software and documentation for purposes other than
educational purposes, contact the Office of
Technology Licensing, UC Berkeley, 2150 Shattuck Avenue,
Suite 510, Berkeley, CA 94720-1620; (510) 643-7201. Created
by H.P. Duiker, Tim Hawkins, and Paul Debevec, Computer
Science Division, University of California, Berkeley.
IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT,
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
DOCUMENTATION, EVEN IF REGENTS HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE. REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE AND ACCOMPANYING
DOCUMENTATION, IF ANY, PROVIDED HEREUNDER IS PROVIDED “AS IS”.
REGENTS HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
LAPACK comes courtesy of Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd., Courant Institute, Argonne National Lab, and Rice University 1994
The TIFF library comes courtesy of Sam Leffler and Silicon Graphics, Inc. Copyright (c) 1988-1996, and Copyright (c) 1991-1996 respectively
The NT port was made possible by the Cygnus Solutions
Radiance is Copyright (c) 1991 Regents of the University of California