An adaptive reversible watermarking in IWT domain

L Meng, L Liu, G Tian, X Wang - Multimedia Tools and Applications, 2021 - Springer
An adaptive reversible watermarking in integer wavelet transform (IWT) domain was
proposed in this paper. It could adaptively embed according to the size of the watermark …

Reversible data hiding using improved gradient based prediction and adaptive histogram bin shifting

R Uyyala, R Pal - 2020 7th International Conference on Signal …, 2020 - ieeexplore.ieee.org
In this paper, a novel reversible data hiding method is proposed using an improved gradient
based prediction. The gradients are computed across horizontal, vertical, diagonal and anti …

Accurate gradient selective based histogram bin shifting for reversible data hiding

R Uyyala - 2023 4th International Conference for Emerging …, 2023 - ieeexplore.ieee.org
A good prediction Error Expansion (PEE) based reversible data hiding method demands an
effective pixel prediction strategy. There are numerous pixel prediction techniques in the …

Gradient adaptive planar prediction for high-fidelity images

R Uyyala, M Subramaniam - 2023 International Conference on …, 2023 - ieeexplore.ieee.org
A good pixel prediction strategy is essential to have a good Prediction Error-Expansion
(PEE) based reversible data hiding (RDH) technique. Several pixel prediction strategies …

Reversible data hiding using multi-layer perceptron based pixel prediction

A Bhandari, S Sharma, R Uyyala, R Pal… - Proceedings of the 11th …, 2020 - dl.acm.org
Reversible data hiding is a branch of data hiding in which cover image can additionally be
restored along with the extraction of hidden data. In prediction error expansion based …

Reversible data hiding with selected directional context based prediction using 8-neighborhood

R Uyyala, R Pal - 2020 IEEE International Conference on …, 2020 - ieeexplore.ieee.org
In this paper, a novel reversible data hiding technique using a selected directional context
based prediction has been suggested. In the proposed prediction strategy, the predicted …

Gradient directional predictor for reconstructing high-fidelity images

R Uyyala, J Joshi - International Conference on Multi-disciplinary Trends …, 2023 - Springer
A good pixel prediction strategy is essential to have a good prediction error expansion
based reversible data hiding technique. Several pixel prediction strategies exist in literature …

Selective Weighting and Prediction Error Expansion for High-Fidelity Images

R Uyyala, S Bojjagani, NK Sharma, P Chithaluru… - SN Computer …, 2024 - Springer
Reversible data hiding (RDH) based on prediction error expansion (PEE) needs a reliable
predictor to forecast the pixel. The hidden information is inserted into the original cover …

Prediction Based Reversible Data Hiding for Gray-Scale Images

R Uyyala, S Bojjagani - 2023 Seventh International Conference …, 2023 - ieeexplore.ieee.org
Predicting the pixel is crucial in prediction error expansion (PEE) based reversible data
hiding (RDH). There are a number of methods for predicting pixels that can be found in …

Speech Emotion Recognition for Psychiatric Care Using Vision Transformers and Predictive Analysis

R Uyyala, MS Shelly, ST Reddy… - 2024 9th International …, 2024 - ieeexplore.ieee.org
Speech emotion recognition is the process of ascertaining and identifying feelings in speech
so that machines could better understand human emotional states. SER is also being used …