Converting color images to grayscale images by reducing dimensions

Tae-Hee Lee; Byoung-Kwang Kim; Woo-Jin Song

doi:10.1117/1.3431688

1 May 2010 Converting color images to grayscale images by reducing dimensions

Tae-Hee Lee, Byoung-Kwang Kim, Woo-Jin Song

Author Affiliations +

Optical Engineering, Vol. 49, Issue 5, 057006 (May 2010). https://doi.org/10.1117/1.3431688

Abstract

A novel color-to-grayscale method is presented for converting color images to grayscale images by reducing dimensions. The proposed method converts three-dimensional (3-D) RGB color vectors into one-dimensional (1-D) grayscale values by projecting the 3-D vector into a two-dimensional (2-D) intermediate one followed by compressing the 2-D vector into the 1-D value. Characteristics of color are introduced to facilitate the final determination of the 1-D values in the reducing dimensions. The proposed method has the advantages of preserving chromatic contrasts, maintaining luminance consistency, and having a low computational cost. Furthermore, the proposed method has high resistance to artifacts, such as halos, which can occur when using local contents.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Tae-Hee Lee, Byoung-Kwang Kim, and Woo-Jin Song "Converting color images to grayscale images by reducing dimensions," Optical Engineering 49(5), 057006 (1 May 2010). https://doi.org/10.1117/1.3431688

Published: 1 May 2010

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