MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202641008111 A) filed by Karpagam Academy Of Higher Education; Karpagam Institute Of Technology; Dr Vadivu; and Srikumaran, Coimbatore, Tamil Nadu, on Jan. 28, for 'image steganography.'
Inventor(s) include Dr Vadivu; and Srikumaran.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "Image steganography has emerged as a vital technique for secure communication in an era where digital data transmission is increasingly vulnerable to interception and unauthorized access. This invention presents a robust and user-friendly image steganography system that leverages the Least Significant Bit (LSB) technique combined with Advanced Encryption Standard (AES) encryption to ensure highly secure and concealed data embedding. The proposed system enables users to hide sensitive text messages within popular image formats such as PNG, JPEG, BMP, and TIFF while maintaining visual fidelity and ensuring that the existence of the hidden information remains undetectable to human observers. The invention introduces a two-layer security mechanism wherein the user's message is first encrypted using AES and a password before being embedded into image pixels through LSB manipulation. This ensures that even if the stego-image is intercepted or analyzed, the hidden content remains inaccessible without the correct decryption key. The decoding mechanism further reinforces security by retrieving and decrypting embedded data only upon successful authentication. The system incorporates strong error-handling to identify invalid images, prevent oversized message encoding, and maintain the integrity of both embedding and extraction processes. To enhance accessibility and ease of use, the system is implemented as an interactive web application using Python and Streamlit. This interface allows users to upload images, input messages and passwords, perform encoding and decoding operations, and save processed images locally without requiring advanced technical expertise. The seamless integration of encryption, steganography, and an intuitive user interface makes the invention suitable for secure personal communication, digital watermarking, forensic investigation, and other applications requiring discreet data transmission. Overall, the invention provides a comprehensive and versatile solution for secure data hiding, offering improved protection, reliability, and usability compared to conventional steganographic tools."
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