TY - JOUR
T1 - Improving preprocessing in reversible data hiding based on contrast enhancement
AU - Nuñez-Ramirez, Diana
AU - Mata-Mendoza, David
AU - Cedillo-Hernandez, Manuel
N1 - Publisher Copyright:
© 2021 The Authors
PY - 2022/9
Y1 - 2022/9
N2 - In this paper, we propose an improvement in the preprocessing stage of the reversible data hiding method based on contrast enhancement applied to grayscale digital images. In conventional proposals, the preprocessing stage plays a fundamental role in the performance of the data hiding algorithm in terms of capacity and visual quality. Thus, this work presents two improvements to the preprocessing stage based on the analysis, merging, and shifting the image histogram, which, in conjunction with the data hiding stage, maximize the embedding capacity while keeping the visual distortion at a minimum. The proposed algorithm was implemented on two image datasets and compared with several related works previously reported in the scientific literature. The experimental results show that the visual quality can be preserved after data have been concealed when employing different embedding rates. Either of the preprocessing techniques presented in this paper can be adopted considering the application scenario and the priority of the requirements of the capacity and visual quality needed.
AB - In this paper, we propose an improvement in the preprocessing stage of the reversible data hiding method based on contrast enhancement applied to grayscale digital images. In conventional proposals, the preprocessing stage plays a fundamental role in the performance of the data hiding algorithm in terms of capacity and visual quality. Thus, this work presents two improvements to the preprocessing stage based on the analysis, merging, and shifting the image histogram, which, in conjunction with the data hiding stage, maximize the embedding capacity while keeping the visual distortion at a minimum. The proposed algorithm was implemented on two image datasets and compared with several related works previously reported in the scientific literature. The experimental results show that the visual quality can be preserved after data have been concealed when employing different embedding rates. Either of the preprocessing techniques presented in this paper can be adopted considering the application scenario and the priority of the requirements of the capacity and visual quality needed.
KW - Contrast enhancement
KW - Data hiding
KW - Histogram equalization
KW - Information security
KW - Reversible data hiding
UR - http://www.scopus.com/inward/record.url?scp=85107133148&partnerID=8YFLogxK
U2 - 10.1016/j.jksuci.2021.05.007
DO - 10.1016/j.jksuci.2021.05.007
M3 - Artículo
AN - SCOPUS:85107133148
SN - 1319-1578
VL - 34
SP - 5468
EP - 5477
JO - Journal of King Saud University - Computer and Information Sciences
JF - Journal of King Saud University - Computer and Information Sciences
IS - 8
ER -