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Volume: 30 | Article ID: art00023
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Media Color Adaptive Gamma Correction
  DOI :  10.2352/ISSN.2470-1173.2018.16.COLOR-417  Published OnlineJanuary 2018
Abstract

In general, most prints are printed on white paper. However, there is a little chroma level in this color, called the white. Because the color is bright enough, people may do not aware of the chroma level. However, when these prints are used as input original of a copier or a scanner, the little chroma level in this color can be detected meaningfully due to the device characteristics of the scanner and environmental factors at that time. This can lead to unintended problems such as color blur, and this color blur can be intensified especially in generation copying. Despite the fact that many scanner and copier manufacturers offer ways to reduce the chroma level of the white, color blur occurred by a variety of causes, and is therefore difficult to remove completely. The proposed correction is intended to suppress the color blur by reducing the chroma level in the white of the original used for copying or scanning. We were able to adjust the RGB gamma curve to reduce the chroma level and adjust the reduction level by analyzing the differences between the RGB channels. The experimental results demonstrate that the proposed correction provides excellent color blur reduction and is particularly effective for generation copying.

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Jaemin Shin, Hyunsoo Oh, Kyeongman Kim, Seong Wook Han, "Media Color Adaptive Gamma Correctionin Proc. IS&T Int’l. Symp. on Electronic Imaging: Color Imaging XXIII: Displaying, Processing, Hardcopy, and Applications,  2018,  pp 417-1 - 417-6,  https://doi.org/10.2352/ISSN.2470-1173.2018.16.COLOR-417

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