HDR Toolbox

HDR Toolbox is a MATLAB/Octave toolbox for processing High Dynamic Range (HDR) content.

Author: Francesco Banterle

License: This software is distributed under GPL v3 license (see license.txt)

Year: Fall 2010-2018

Title: HDR Toolbox for Matlab

Version: 1.1.0

REFERENCE:

When you use the HDR Toolbox for your research, please DO NOT reference the URL of this website as many people wrongly do. Please reference the book in your work/papers:

@book{Banterle:2017,

author = {Banterle, Francesco and Artusi, Alessandro and Debattista, Kurt and Chalmers, Alan},

title = {Advanced High Dynamic Range Imaging (2nd Edition)},

year = {2017},

month={July},

isbn = {9781498706940},

publisher = {AK Peters (CRC Press)},

address = {Natick, MA, USA},

}

HOW TO INSTALL:

Unzip the file HDRToolbox.zip in a FOLDER on your PC/MAC
Run Matlab
Set the FOLDER as current directory
Write the command installHDRToolbox in the Command Window, and wait for the installation process to end.

NOTE ON EXPANSION OPERATORS (INVERSE/REVERSE TONE MAPPING):

The majority of EOs require to have as input LDR/SDR images that are NORMALZIED (i.e., in the range [0,1]) and LINEARIZED. To be LINEARIZED means that the camera response function (CRF) or the gamma encoding has been removed. This operation is MANDATORY in order to generate FAIR comparisons.

NOTE1: Please DO use the gammaRemoval parameter to remove gamma encoding if you do not have the CRF of the input image. Note that this is an approximation.

NOTE2: RAW files do not require this step because they are already linear. Therefore, for ONLY these images set gammaRemoval = 1.0.

NOTE ON TONE MAPPING:

The majority of TMOs return tone mapped images with linear values (i.e., withouth a CRF or gamma encoding). This means that gamma encoding needs to be applied to the output of these TMOs before visualization or before writing tone mapped images on the disk; otherwise these images will appear dark. A few operators (e.g., Mertens et al.'s operator) return gamma encoded values, so there is no need to apply gamma to them; in this case a message (e.g., a Warning) is displayed after tone mapping alerting that there is no need of gamma encoding.

NOTE ON PULL REQUESTS:

Please, send your pull requests to the develop branch. Requests sent to the Master branch will be ignored.

Contact:

e-mail: support@advancedhdrbook.com

facebook: https://www.facebook.com/pages/Advanced-High-Dynamic-Range-Imaging-Book/166905003358276