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Forming a logical balance between the quality of the file and the scope of data that can be conveyed is the test of steganographic techniques to form such a balance. On top of that, the facts that cannot be covered up are the robustness of the method and security of the vague data. An insertion method which delivers a high level of visual quality and a huge amount of volume for the obscured data is called the Least Significant Bit (LSB), but the concealed message is poorly secured through this technique. In the recommended approach, the Vigenere encryption techniques initially used to encode the secret data to assure the safety of the concealed message. Later, the data is contracted through the Huffman coding method in order to decrease the occupational volume of the classified data. Then, each bit stream of the data is dispersed out onto the image to enhance the robustness of the technique by using the expanded knight tour algorithm. The outcomes show that apart from enhancing the visual quality of the stego image, the recommended technique enhances the safety and payload capacity issues of the simple LSB technique.

A Novel Approach to Enhance the Security of the LSB Image Steganography