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Exposure Fusion: A Simple and Practical Alternative to High Dynamic Range Photography
Author(s) -
Mertens T.,
Kautz J.,
Van Reeth F.
Publication year - 2009
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.2008.01171.x
Subject(s) - tone mapping , high dynamic range , computer science , computer vision , multiple exposure , artificial intelligence , computer graphics (images) , pipeline (software) , dynamic range , sequence (biology) , photography , image quality , brightness , computational photography , range (aeronautics) , simple (philosophy) , image (mathematics) , image processing , optics , art , philosophy , physics , materials science , epistemology , composite material , biology , visual arts , genetics , programming language
We propose a technique for fusing a bracketed exposure sequence into a high quality image, without converting to High dynamic range (HDR) first. Skipping the physically based HDR assembly step simplifies the acquisition pipeline. This avoids camera response curve calibration and is computationally efficient. It also allows for including flash images in the sequence. Our technique blends multiple exposures, guided by simple quality measures like saturation and contrast. This is done in a multiresolution fashion to account for the brightness variation in the sequence. The resulting image quality is comparable to existing tone mapping operators.