What MTF score indicates that an image perfectly represents the object in both spatial resolution and contrast?

The MTF, or Modulation Transfer Function, is a critical measurement in imaging systems that indicates how well an imaging system can transfer various levels of detail from the object to the image. An MTF score of 1.0 signifies that the imaging system represents the object with perfect fidelity in both spatial resolution and contrast. This means that the system can display fine details accurately without any blurring or loss of contrast, illustrating the highest possible quality of the image.

In contrast, lower MTF scores (such as 0.5 or 0.25) indicate a reduced capability of the imaging system to accurately transfer the object's details to the image, resulting in compromises in either spatial resolution, contrast, or both. Therefore, a score of 1.0 is essential for evaluating an imaging system at its most effective performance level.