A novel approach to embedding digital data into a cover image using simple Bézier curve is proposed on the base of harmonic amalgamation algorithm whose purpose is to hide digital images.A message embedded by this approach can be in the form of text

imagery

or any other digital signal.The data to be embedded is treated as a binary stream and is partitioned into a number of sub-streams.Each sub-stream of data is converted into values that are then embedded into the public original image.Given appropriate parameters

it could be proved that digital data embedded by this approach could all be recovered correctly by data recovering process with the knowledge of original image.The advantage of this approach is high efficiency of data hiding.Its maximal efficiency of data hiding could come up to 3 bits/pixel when using gray images as public original images.Experimental results show that the proposed approach is feasible.