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TonemapCTR v.1.3

TonemapCTR is simple, easy-to-use, and efficient software to tonemap high dynamic range (HDR) images, which means that this software convert HDR images into low dynamic range (LDR) format, making HDR images visible on ordinary displays.
 
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Download: tonemapctr.zip (725KB)

Purpose:
Tonemapctr is being provided to produce results of our previous research for only purpose of implementation of this below paper.

@InProceedings{Kim_Kautz:2008a,
  author    = {Min H. Kim and Jan Kautz},
  title     = {Consistent Tone Reproduction},
  booktitle = {Proc. the Tenth {IASTED} International Conference 
              on Computer Graphics and Imaging ({CGIM})},
  year      = {2008},
  pages     = {152--159},
  publisher = {{IASTED/ACTA} Press},
  address   = {Innsbruck, Austria}
}

Installation:
This software is a command-line application for 32-bits Windows machine. To install it, copy "tonemapctr.exe" file into a directory as you wish. If you want to use it in any directory, please SET PATH of your certain directory. It should work immediately.

Quick Start:
USAGE: tonemapctr [input hdr] [output ldr] [options]

OPTIONS:
/t: <num> Target Dynamic Range (default: 8.0)
/e: <num> Display Efficiency Factor (default: 0.5)
/g: <num> Target Display Gamma (default: 2.4)
/h: <num> Clamping Level in Highest Level (default: 99.0)
/l: <num> Clamping Level in Lowest Level (default: 0.1)
/s: <num> Standard Deviation Scalar (default: 3.0)
/b: Use Color Gamut Expansion (default: off)
/c: Don't use Smart Highlight Scalar (default: on)
/w: Don't use Gaussian Weighting (default: on)
/m: Use Normalization of Lowest Level(default: off)
/v: Don't show verbose and time (default: on)

SUPPORT:
Input HDR: rgbe, hdr, exr
Output LDR: jpeg, tiff, bmp, png

EXAMPLE:
>>tonemapctr memorial.hdr memorial.png

Tips on Practical Use:
- Ordinary hdr images work well with its diffult parameters. We strongly encourage you to use this application with its set of default parameters. You can use tonemapctr in simplest way for general cases like above.
- If you find some artifacts on highlight part of images, you may want to try options (/c) or (/h 100).
- If you want to get more contrast images, you may want to try options (/m or /c), which were used for the cited paper.


Copyright © 2008 Min H. Kim

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