Color-to-Gray Conversion Method Considering Contrasts in Color Image

Shi BAO; Zhiqiang LIU; Go TANAKA

doi:10.1587/transfun.E101.A.1849

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

Online ISSN : 1745-1337
Print ISSN : 0916-8508

Special Section on Smart Multimedia & Communication Systems

Color-to-Gray Conversion Method Considering Contrasts in Color Image

Shi BAO, Zhiqiang LIU, Go TANAKA

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Keywords: color-to-gray conversion, contrast, variance, color image

JOURNAL RESTRICTED ACCESS

2018 Volume E101.A Issue 11 Pages 1849-1853

DOI https://doi.org/10.1587/transfun.E101.A.1849

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Abstract

A new projection-based color-to-gray conversion method is proposed in this letter. In the proposed method, an objective function which considers color contrasts in an input image is defined. Projection coefficients are determined by minimizing the objective function. Experimental results show the validity of the proposed method.

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