An enhanced mechanism for image steganography using sequential colour cycle algorithm

الملخص EN

Several problems arise among the existing LSB-based image steganographic schemes due to distortion in a stegoimage and limited payload capacity.

Thus, a proposed scheme has been developed with the aims to help in improving the payload of the secret data at the same time retaining the quality of the stego-image produced within an acceptance threshold.

This study has led to the modification of the current LSB substitution Algorithm by delivering a new Algorithm namely sequential colour cycle.

For achieving a higher security, multi-layered steganography can be performed by embedding a secret data into multiple layers of cover-images.

The performance evaluation has been tested and proven that the improvement of embedding ratio at 1 : 2 for the proposed Algorithm can be achieved and the value of the image quality is not falling below the threshold of distortion.