Improving preprocessing in reversible data hiding based on contrast enhancement.
Diana Nuñez-RamirezDavid Mata-MendozaManuel Cedillo-HernandezPublished in: J. King Saud Univ. Comput. Inf. Sci. (2022)
Keyphrases
- contrast enhancement
- reversible data hiding
- preprocessing
- visual quality
- image enhancement
- data hiding
- histogram equalization
- gray level
- multiscale
- color images
- transfer function
- image quality
- low contrast
- bit rate
- high capacity
- low pass
- reconstructed image
- color restoration
- adaptive histogram equalization
- human visual system
- multiresolution
- image analysis
- pixel values
- high frequency
- gray value
- post processing
- input image
- feature extraction