Chok Dong Ooi

Work place: School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.

E-mail: ocdong.ueee12@student.usm.my

Website:

Research Interests: Detection Theory, Image Manipulation, Image Compression, Computer systems and computational processes

Biography

Chok Dong Ooi graduated with B.Eng degree from the School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, Malaysia in year 2016. He is currently working as an engineer with a company located in Penang, Malaysia. His research interest is on shadow detection and shadow removal from digital image.

Author Articles
Development of Algorithm to Reduce Shadow on Digital Image

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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