Design and implementation of information hiding system based on RGB

The improved method of text steganography based on RGB is proposed in this paper, and we present a promising algorithm for information hiding in Word document, which by means of changing the RGB values of character and underline. Specially, the most important part is an information hiding system which is designed based on the attribute of characters. The general methods of text information hiding are analyzed briefly. In this algorithm, the RGB values of character and underline are converted to ensure the information hiding capacity of each character hide 8-bit information. Tests and comparisons show that the algorithm expands the hidden capacity and improves the imperceptibility of carrier document. Furthermore, it obtains a favorable compromise between robustness and imperceptibility.