TECH OFFER

Method Of Embedding External Data In A Digital Image

TECHNOLOGY OVERVIEW

A method of embedding external data into digital image is described. Reference points (R) are determined, said reference points have one pixel between each reference point horizontally, vertically and diagonally. Pixels next to reference points (Xp) are predicted to find prediction error (e). Selected errors for predicted pixels are histogram shifted to created vacant error (f). External data is parsed into strings (L) of two to five bit, said strings comprise an odd bit value. If there are no odd bit string, parsing of uniform bit value string is performed. Parsed string is mapped into triplet of errors by switching errors into vacant shifted errors. The image is constructed by adding shifted errors (es) into predicted value of pixels (Xp). The method can be operated in lossless mode by restoring replaced pixel of shifted errors(es) with prediction error.

Mega - Trends

Innovative Technologies of the Future, Wireless Intelligence

Technology Readiness Level (TRL)

TRL 4

Patent Number

PI 2015700361

Get the technology fact sheet here:

Contact person for this offer:

ChM Dr. Lee Ching Shya, PhD (Dual), RTTP

Technology Transfer Manager

Email: leecs@um.edu.my

Tel: +603-7967-7351/ 013-2250151

MAKE AN ENQUIRY

press to zoom

press to zoom
1/1

MORE INFORMATION

You have a question to know about technologies or cooperations? 
Please Contact Us:

+603 - 7967 7351 / 013-2250151