Encrypt Microar ray Image with Your Pictures

Abstract

The objective of this research is to apply the data hiding technique to encrypt micro-array image with the help of contrast properties of a portrait image or company logo. The original micro-array image is captured and digitized from a gene-chip membrane, with 9600 different hybridized and expressed gene fragments, as 9600 features are extracted by image analysis. By adopting an algorithm of "relative-contrast-consistent reshuffle," the features of the micro-array image and an 80x120 grayscale image can result a new image which possesses the features of microarray's gene expression and a meaningful pattern (e.g., a human portrait or a company logo) as well. The method developed in this research has significant potential in personal identification, security information protection and next generation gene-chip design.