Study of Preferable Quantity of Hiding Data in An Image

Relationship among the quantity of hiding data,their invisibility,and robustness of hiding in an image is studied.A binary image and Chinese characters were embedded into a 256 gray-level image with LSB method.The algorithm to hide the data both in single bit-plane and multi-bit-plane of the image are given.Experiments are carried out to hide a binary image into each bit-plane （8bit-planes totally） of the image,and hide Chinese characters into multi-bit-plane （0,0～1,0～2,0～3,0～4,0～5,0 ～6,0～7） of the same image.Attack experiments are also made with noise adding,filtering and JPEG compression.Experimental results show the relationship among the quantity of hidden data,invisibility and robustness for different single bit-plane and different multi-bit-plane respectively.Some suggestions are given about the preferable hiding scheme to meet various application needs.