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Optical Engineering

Converting color images to grayscale images by reducing dimensions
Author(s): Tae-Hee Lee; Byoung-Kwang Kim; Woo-Jin Song
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Paper 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.

Paper Details

Date Published: 1 May 2010
PDF: 7 pages
Opt. Eng. 49(5) 057006 doi: 10.1117/1.3431688
Published in: Optical Engineering Volume 49, Issue 5
Show Author Affiliations
Tae-Hee Lee, Pohang Univ. of Science and Technology (Korea, Republic of)
Byoung-Kwang Kim, Pohang Univ. of Science and Technology (Korea, Republic of)
Woo-Jin Song, Pohang Univ. of Science and Technology (Korea, Republic of)


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