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Invertible Color-to-Monochrome Conversion Based on Color Quantization with Lightness Constraint
Go TANAKA Noriaki SUETAKE Eiji UCHINO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/11/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: LETTER
color-to-monochrome conversion, color quantization, k-means, color image, recoloring,
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A method obtaining a monochrome image which can rebuild colors is proposed. In this method, colors in an input image are quantized under a lightness constraint and a palette, which represents relationship between quantized colors and gray-levels, is generated. Using the palette, an output monochrome image is obtained. Experiments show that the proposed method obtains good monochrome and rebuilt color images.