Improved Steganography Approach using Color Guided Channel in Digital Image

Computer Science & Engineering

In Today’s World most of the digital data is transmitted from one place to another through the medium of Internet. So there is a possibility of insecurity of data through the communication medium. Steganography is one of the technique which can be used to hide the data which means it is a method of communicating or connecting in a hidden manner. Data hiding plays a important role to serve this purpose. The proposed data hiding method uses a color image (RGB). In this approach data does not embedded directly. This approach use both direct and indirect form. In this method First of all secret message is converted into binary bit stream i.e. in the form of zeros (0) and ones (1). After that Run Length Encoding is used to compress the bit stream, in which the repeated occurrences are rewritten in the form of digit & its count. Here the data is embedded in direct & indirect form. One channel is used as identifier channel and the other two channels used for carry the data. In direct form bits are directly embedded in the LSBs of channel-1 and channel-2. In indirect form the count is embedded in the 2 LSB of channel-2 and 1 LSB of channel-1. The results show that the proposed approach gives better performance & proposed method improves visual quality of Stego image in terms of MSE and it has more embedded capacity as compare to existing method.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.