Data hiding is one of the most important strategies on the field of data security; the main purpose of data hiding is to disguise the secret information and put them behind a cover image to make them unnoticeable and to assure the secrecy as a stego-image. Besides safety, the quantity of data that can be hidden in a single cover image is also very important to the data encryption. In this paper, we propose two kinds of weight-changing evaluation of high capacity EMD data hiding strategies that formulas can be open to the public; one of them is using table-checking to change the weighting evaluation of high capacity EMD data hiding strategy, the other is using generalize of high capacity EMD data hiding; both strategies can improve the safety problem when opening the formula to the public.
['Wen-Chung Kuo', 'Lih-Chyau Wuu', 'Chia-Nian Shyi', 'Shao-Hung Kuo']
A Data Hiding Scheme with High Embedding Capacity Based on General Improving Exploiting Modification Direction Method