Modulation Transfer Function (MTF) is also referred to as which of the following?

Modulation Transfer Function (MTF) is often referred to as image fidelity because it quantifies how well a system can reproduce the detail of an image compared to the original scene. MTF measures the ability of a digital imaging system to transfer various levels of detail from the object to the image. It describes the spatial resolution and the contrast of the imaging system. Higher MTF values indicate better fidelity, meaning that the image remains true to the original subject in terms of detail and clarity.

The other options relate to different aspects of imaging. For instance, signal-to-noise ratio primarily deals with the amount of desired signal versus noise, affecting clarity but not directly measuring fidelity. Image resolution references the detail an image holds but does not fully encapsulate the concept of fidelity since it doesn't account for the accuracy of information transfer. Contrast resolution refers to the ability to distinguish between differences in intensity in an image, focusing more on the dynamic range rather than the fidelity of detail reproduction.