Work place: School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
E-mail: haidi_ibrahim@ieee.org
Website:
Research Interests: Image Processing, Virtual Reality, Image Manipulation, Image Compression, Computer Graphics and Visualization, Computer systems and computational processes
Biography
Haidi Ibrahim received his B.Eng degree in electronic engineering from Universiti Sains Malaysia, Malaysia in year 2000. He is then received his Ph.D degree in digital image processing from the Centre for Vision, Speech, and Signal Processing (CVSSP), University of Surrey, Guildford, United Kingdom in year 2005. He is now an Associate Professor at the School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia. His research interest includes digital image contrast enhancement, noise reduction, image segmentation, 3D viualization, and virtual reality.
By Chok Dong Ooi Haidi Ibrahim
DOI: https://doi.org/10.5815/ijigsp.2016.11.01, Pub. Date: 8 Nov. 2016
In this paper, two shadow reduction algorithms have been proposed and implemented using CIE Lab color space. The task of performing shadow reduction is done by executing shadow detection, shadow removal and lastly shadow edge correction in a sequential order. The first proposed algorithm is implemented based on pixel illumination and color information meanwhile the second algorithm is carried out via thresholding of one or more CIE Lab color space channels. The outputs from both proposed algorithms are compared in terms of shadow detection accuracy and required processing period. The proposed methods shown some promising results.
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