Hardware implementation of a real-time tone mapping algorithm based on a mantissa-exponent representation

2016 ◽  
Author(s):  
Ulian Shahnovich ◽  
Alain Hore ◽  
Orly Yadid-Pecht
Keyword(s):  
Real Time ◽  
Hardware Implementation ◽  
Tone Mapping ◽  
Mapping Algorithm

scholarly journals Local tone mapping algorithm and hardware implementation

2018 ◽  
Vol 54 (9) ◽  
pp. 560-562 ◽  
Author(s):  
J. Yang ◽  
A. Hore ◽  
O. Yadid‐Pecht
Keyword(s):  
Hardware Implementation ◽  
Tone Mapping ◽  
Mapping Algorithm ◽  
Local Tone Mapping

REAL-TIME DISPERSIVE REFRACTION WITH ADAPTIVE SPECTRAL MAPPING

2013 ◽  
Vol 22 (06) ◽  
pp. 1360019
Author(s):  
DAMON BLANCHETTE ◽  
EMMANUEL AGU
Keyword(s):  
Real Time ◽  
White Light ◽  
Spectral Mapping ◽  
Mapping Algorithm ◽  
Physically Based ◽  
Refractive Medium ◽  
Interactive Frame ◽  
Screen Space ◽  
Special Case ◽  
Novel Algorithm

Spectral rendering, or the synthesis of images by taking into account the constituent wavelengths of white light, enables the rendering of iridescent colors caused by phenomena such as dispersion, diffraction, interference and scattering. Caustics, the focusing and defocusing of light through a refractive medium, can be interpreted as a special case of dispersion where all the wavelengths travel along the same paths. In this paper we extend Adaptive Caustic Mapping (ACM), a previously proposed caustics mapping algorithm, to handle physically-based dispersion. Because ACM can display caustics in real-time, it is amenable to extension to handle the more general case of dispersion. We also present a novel algorithm for filling in the gaps that occur due to discrete sampling of the spectrum. Our proposed method runs in screen-space, and is fast enough to display plausible dispersion phenomena at real-time and interactive frame rates.

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