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The paper explores the development of an optimization of method and apparatus for retrieving extended high dynamic range from digital negative image. Architectural photo imaging can benefit from high dynamic range imaging (HDRI) technique for preserving and presenting sufficient luminance in the shadow and highlight clipping image areas. The HDRI technique that requires multiple exposure images as the source of HDRI rendering may not be effective in terms of time efficiency during the acquisition process and post-processing stage, considering it has numerous potential imaging variables and technical limitations during the multiple exposure process. This paper explores an experimental method and apparatus that aims to expand the dynamic range from digital negative image in HDRI environment. The method and apparatus explored is based on a single source of RAW image acquisition for the use of HDRI post-processing. It will cater the optimization in order to avoid and minimize the conventional HDRI photographic errors caused by different physical conditions during the photographing process and the misalignment of multiple exposed image sequences. The study observes the characteristics and capabilities of RAW image format as digital negative used for the retrieval of extended high dynamic range process in HDRI environment.

Item Type:	Refereed Article
Keywords:	technologies, virtual reality, augmented reality, computational photography, high dynamic range image, photography workflow, optimization, digital negative image, architectural image
Research Division:	Creative Arts and Writing
Research Group:	Screen and digital media
Research Field:	Interactive media
Objective Division:	Expanding Knowledge
Objective Group:	Expanding knowledge
Objective Field:	Expanding knowledge in education
UTAS Author:	See, ZS (Dr Zi Siang See)
ID Code:	148982
Year Published:	2012
Deposited By:	Education
Deposited On:	2022-02-25
Last Modified:	2022-04-27
Downloads:	4 View Download Statistics