Japanese / English

Detail of Publication

Text Language Japanese
Authors Motoi Iwata,Kenta Eguchi,Koichi Kise
Title Digital Watermarking Method Preventing Extraction Error Caused by Transformation from Uniform Color Space to RGB Color Space
Journal Journal of the Imaging Society of Japan
Vol. 54
No. 4
Pages pp.284-291
Reviewed or not Reviewed
Month & Year August 2015
Abstract Uniform color space is a color space matching with human visual system臓促Therefore many digital watermarking method employed it臓促However, watermark bits are not always correctly extracted if the RGB values transformed from uniform color space are adjusted to integer values by rounded-up although this procedure is often employed臓促It is because the transformation from uniform color space to RGB color space is non-linear臓促The proposed method solves this problem by using color transformation table臓促Moreover, the proposed method improves processing speed by changing search procedure and dividing color transformation table appropriately臓促Experimental results clarify the problem of existing methods and the performance of the proposed method臓促
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