Final answer:
Steganography is the practice of concealing data within another image, which is typically undetectable to the casual observer.
It is a form of hiding information in plain sight, similar to the use of imagery to enhance text messages or precautions taken during wartime to avoid detection.
Step-by-step explanation:
The practice of hiding the existence of data by embedding it within another image is known as steganography. This technology is used to conceal information within digital files such that it goes unnoticed.
While a virtual image refers to an image that can't be projected physically, steganography allows data to be inserted into other media. An example of enriching messages with images is inserting an image with text where imagery enhances the underlying message of the text, providing a stronger impact.
Similarly, in the practice of steganography, the hidden data is embedded in a way that does not draw attention, much like how during a war effort, civilians would take precautions (such as hiding or covering up any light) to avoid being targeted.
The practice of hiding the existence of data, usually by embedding it in another image, is called steganography. Steganography is a technique used to conceal secret messages or data within seemingly innocuous files, such as images or audio files.
For example, a common method of steganography is to hide information within the pixels of an image. By slightly altering the color values of certain pixels, a hidden message can be concealed within the image without noticeably affecting its visual appearance.
Steganography has been used for various purposes, including secret communication, digital watermarking, and even as a form of digital art.