SEGMENTATION BASED IMAGE STEGANOGRAPHY

In recent years, the advancements in digital communications and information technology has become important for secured information transmission. For providing secured communication, steganography plays an important role. Different algorithms are utilized in steganography to conceal secret information in digital images. Imperceptibility is one of the major concerns in steganography. In the proposed method, segmentation and improved LSB algorithm has been used for embedding secret information in digital images. In order to maintain high imperceptibility in the proposed algorithm, the cover image is splited after which the secret data is embedded into any one of the segment of cover image by using a secret key. The test results demonstrate that the stego image quality has been improved contrasted with other existing algorithms of data hiding. Various parameters like NCC, MSE and PSNR are determined to check the robustness of this method. Higher estimations of NCC and PSNR are obtained compared to existing methods.