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International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.8, No.11, Nov. 2016

Development of Algorithm to Reduce Shadow on Digital Image

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Author(s)

Chok Dong Ooi, Haidi Ibrahim

Index Terms

Shadow reduction;shadow detection;illumination;color space;channel thresholding

Abstract

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. 

Cite This Paper

Chok Dong Ooi, Haidi Ibrahim,"Development of Algorithm to Reduce Shadow on Digital Image", International Journal of Image, Graphics and Signal Processing(IJIGSP), Vol.8, No.11, pp.1-9, 2016.DOI: 10.5815/ijigsp.2016.11.01

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