Improvement of the Bit Plane Truncation Image Scheme for Reversible Data Hiding

Data hiding is a technique for embedding secret data into digitalized carriers, such as images, videos, and documents. With remarkable demand for quality image in the past decades, reversible data hiding (RDH) has attracted researchers' attention. In the RDH methods, not only the secret information can be extracted, but the original image can also be recovered without loss. In the present study, we attempt to improve an existing RDH scheme known as bit-plane truncation image (BPTI). The proposed method follows the block division used in the BPTI, and achieves higher embedding capacity without extra memory to store the peak point and zero point values. Experimental results show that the image visual quality of the proposed method is very satisfactory.