MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541122129 A) filed by Vellore Institute Of Technology, Vellore, Tamil Nadu, on Dec. 4, 2025, for 'reversible data hiding system using pixel value ordering and global sorting.'
Inventor(s) include Dr Mugelan RK; Dr Swetha NG; and Ammay Bathla.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The present disclosure provides a reversible data hiding system comprising a prediction module that generates predicted pixel values using warped distance-based prediction with asymmetric pixel pair analysis, calculating directional variance using asymmetric pairs, a global sorting module that sorts pixels by predicted values and groups pixels with identical predicted values, further sorting by local complexity values from neighboring pixel differences, an error expansion module that divides sorted pixels into blocks and generates pixel error pairs by computing differences between selected pixels and reference values, a mapping module that embeds secret data using two-dimensional mapping strategy converting pixel error pairs into modified pairs based on transformation rules, adaptively prioritizing quadrants of an error histogram based on statistical distribution, and an extraction module that recovers embedded secret data and original digital image by reversing the embedding process."
Disclaimer: Curated by HT Syndication.
