To increase the amount of embedded information hidden in digital image

a hiding algorithm based on bit-plane and the information of HVS (human visual system)is proposed. Our proposed method takes both

the position of the image and changes in the pixel gray values into account. First of all

the secret image is stratified by a bit-plane

scrambling in accordance with the improved Arnold transform algorithms.The most significant bit plane is matched with the bit plane of the cover image and then obtained. This reduces the space of the secret sequence

and then in accordance with the masking effect of the human visual system

in the table of embedded depth

the information is embedded. The experimental results show that the algorithm is not ensuring the visual effect

the amount of information which can be embedded is further improved

and the capacity is more than 28%

PSNR greater than 45 dB.Furthermore

the proposed algorithm is more robust.