Data Embeddable Texture Synthesis with Fast Data Extraction

Abstract

Texture synthesis which grows source texture image into a bigger texture image is applied for data embedding, instead of using a readily available digital image as a carrier for data. The patch based texture synthesis is used to embed the data in patches. The selection of a suitable patch for texture synthesis is dependent on data to be hidden. At receiver, embedded data is recovered along with source texture. The efforts are taken to improve the speed of the data extraction. In the process of data extraction, the matched candidate patch is identified at every patch location of stego synthetic texture image. If it is done by referring to the energy value of the kernel region than by comparing the whole patch with all candidate patches for similarity, data extraction is almost 40 times faster.