A New Digital Image Hiding Approach Using Multi-Image Fusion

Using the idea of digital image's information sharing, a new hiding approach for multi-image fusion based on NURBS curve is presented. The approach makes use of a k-order non-uniform rational B-spline curve with weights to hide information of one image into information of n images. These hiding schemes have more fusion parameters to act as the private keys, which can enhance the security and robustness of the hiding image more. Actually, in the whole image sequence, only p+1 public images do work, so the influence on the recovering result can be decreased, which is caused by the pollution of various noises during public images' transmission. Examples show that these schemes can be realized expediently and have some degree of robustness. These hiding approaches can also be used in the field of digital watermarking and other digital application.