• A.Sivasankari
• Dr.Krishnaveni Sakkarapani

Information security is one of the most important factors to consider when exchanging sensitive information between two parties. Cryptography and steganography are the two techniques used for this. Encryption encrypts information but reveals the existence of information. Steganography hides the actual existence of the information and makes the transmission invisible to anyone but the sender and receiver. In steganography, the confidential information sent is hidden by another carrier, making the confidential information invisible. Steganography can be applied to various file formats such as audio, video, text, and images. In this method of thrashing an image in a different image using the Hybrid Continuous Wavelet Transform (HCWT) process, HCWT combines WFT (Windowed Fourier Transform) and CWT (Continuous Wavelet Transform). HCWT uses an LSB method that converts data into various window shapes, converts high-frequency and low-frequency components into a bitstream, and hides the data bits in the last 3 bits of the carrier medium. We support. Due to data being embedded or hiding, the size of the cover media increases. Discrete Fourier Transform (DFT) is applied to reduce steganoImage file size. On the receiver side, secreted information is restored through Inverse HCWT. The evaluation result shows enhanced PSNR and lesser MSE with improved compression ratio, capacity, and security.

Steganography, CWT, Hybrid CWT, Data Security, DFT, Image Compression

"HCWT: HYBRID CONTINUOUS WAVELET TRANSFORMED STEGANOGRAPHY FOR SECRET DATA SHARING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.17-26, June-2022, Available :http://www.jetir.org/papers/JETIRFN06003.pdf

"HCWT: HYBRID CONTINUOUS WAVELET TRANSFORMED STEGANOGRAPHY FOR SECRET DATA SHARING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. pp17-26, June-2022, Available at : http://www.jetir.org/papers/JETIRFN06003.pdf