Optimal Exposure Value Shift in Acquisition of Hdr Images

Kartalov, Tomislav and Ivanovski, Zoran and Panovski, Ljupcho (2010) Optimal Exposure Value Shift in Acquisition of Hdr Images. In: Proceedings of the Seventh Conference on Informatics and Information Technology. Institute of Informatics, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, Macedonia, Skopje, Macedonia, pp. 162-166. ISBN 978-9989-668-88-3

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Abstract

This paper addresses the problem of choosing the optimal exposure value shift in the process of acquisition of input overexposed and underexposed images that are used to produce the output high dynamic range image. The analysis performed in the paper is based on mathematical background of the photometric properties of the digital still cameras, defined by the international standards established by CIE. The paper shows that in order to obtain input images suitable for the HDR process, for greyscale images represented by 8 bits per pixel, relative exposure difference should be at least 2 exposure points over and under the calculated optimal exposure for the observed scene.

Item Type: Book Section
Uncontrolled Keywords: HDR, exposure value, CIE Lab
Subjects: International Conference on Informatics and Information Technologies > Signal Processing
International Conference on Informatics and Information Technologies > Multimedia
Depositing User: Vangel Ajanovski
Date Deposited: 28 Oct 2016 00:15
Last Modified: 28 Oct 2016 00:15
URI: http://eprints.finki.ukim.mk/id/eprint/11297

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