Performance analysis of LSB, DCT, and DWT for digital watermarking application using steganography

Digital watermarking have been used for maintaining copyright information of the digital media for a decade. Digital watermarking is a technique used for embedding copyright information in the media files. The media file could be an image, an audio, a video, or a text. Steganography have been used in the Digital watermarking application. Steganography has become more important due to the exponential growth of communication of potential computer information on the internet. Steganography differs from cryptography, such that cryptography hides the contents of secret message, whereas, steganography is about hiding the message in media effectively. This research article gives an overview of steganography, its applications, and difference from cryptography. This research article analyses performance of the Least Significant Bit (LSB), Discrete Cosine Transform (DCT), and Discrete Wavelet Transform (DWT).