An Extended Method for Reversible Color Tone Control Using Data Hiding

Daichi Nakaya,Shoko Imaizumi

ELECTRONICS(2024)

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摘要
This paper proposes an extended method for reversible color tone control for blue and red tones. Our previous method has an issue in that there are cases where the intensity of enhancement cannot be flexibly controlled. In contrast, the proposed method can gradually improve the intensity by increasing the correction coefficients, regardless of the image features. This is because the method defines one reference area where the correction coefficients are determined, one each for blue and red tones, while the previous method defines a common reference area for both tones. Owing to this, the method also provides independent control for blue and red tones. In our experiments, we clarify the above advantages of the method. Additionally, we also discuss the influence of the data-embedding process, which is necessary to store recovery information, on the output image quality.
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关键词
image processing,data hiding,color tone control,reversibility,YDbDr color space
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