Reversible data hiding using texture synthesis approach

Reversible data hiding refers to embedding secret message into a cover and the cover image can be recovered exactly. In the texture synthesis approach texture image which is smaller in size is resampled in order to form a texture image which is comparatively of larger size but similar to the original one. It helps in concealing the secret information in the image. Patch based texture synthesis pattern preserves the image quality. By our approach first a lookup table is created denoting the location of source patches. Next based on the lookup-table secret messages are placed on a blank workbench. The secret messages are embedded according to our proposed embedding algorithm which is robust to any steganalysis attack. The reversible capacity inherited from our approach allows the receiver to perform second round of steganalysis by using the same source texture which the sender has sent.