  Digital steganography or data hiding has emerged as a new area of research in
connection to the communication in secured channel as well as intellectual
property protection for multimedia signals. The redundancy in image
representation can be exploited successfully to embed specified characteristic
information with a good quality of imperceptibility. The hidden multimedia
information will be communicated to the authentic user through secured channel
as a part of the data. This article deals with a transform domain, block-based
and signal non-adaptive/adaptive technique for inserting multimedia signals
into an RGB image. The robustness of the proposed method has been tested
compared to the other transform domain techniques. Proposed algorithm also
shows improvement in visual and statistical invisibility of the hidden
information.
