COMPUTER FUNDAMENTALS

Detailed explanation-1: -The practice of adding a watermark–a trademark or other identifying data hidden in multimedia or other content files–is one common use of steganography. Watermarking is a technique often used by online publishers to identify the source of media files that have been found being shared without permission.

Detailed explanation-2: -Steganography is the practice of concealing information within another message or physical object to avoid detection. Steganography can be used to hide virtually any type of digital content, including text, image, video, or audio content. That hidden data is then extracted at its destination.

Detailed explanation-3: -Answer: The Least Significant Bit technique( LSB) is most commonly used by steganography to hide text in an image file. In this method, the data is concealed by altering the last few bits in a byte required to encode a message.

Detailed explanation-4: -Summarizing: each pixel has three values (RGB), each RGB value is 8-bit (it means we can store 8 binary values) and the rightmost bits are less significant. So, if we change the rightmost bits it will have a small visual impact on the final image. This is the steganography key to hide an image inside another.