Image Steganography Method for Securing Multiple Images Using LSB–GA

Image steganography is renowned for its flexibility and frequency in the current scenario. This article presents a combination of LSB (Least Significant Bit) and GA (Genetic Algorithm) to hide various forms of data—text, and images. A novel combination of steganography techniques is used to transmit complete secret data. Also, multiple color images are embedded in a single color image, showing increased secret data holding capacity. Furthermore, the application of GA assures increased security. The excellence of the stego image and retrieved images are evaluated in terms of Peak Signal to Noise Ratio (PSNR), Structural Similarity Index Metric (SSIM), Correlation coefficient, and Bit Error Rate (BER). Hence, this article is targeted to transmit multiple color images with no loss and improved security using GA and we achieved SSIM between 0.996 to 1.