fidelity measure

Fidelity measure is a way to evaluate how accurately a system or process performs its intended task, especially when dealing with information like signals, images, or communication. It assesses how close the output is to the original input, indicating the quality or integrity maintained during transmission or processing. High fidelity means the result closely resembles the original, with minimal distortion or loss. This concept is important in fields like audio, video, and data communication, where preserving the original quality is essential for a reliable and effective experience.