Sharpness measurement may not be accurate as ROI contrast is less than 20%. Sharpness measurement may not be accurate as

[omidrostaei]

Sharpness measurement may not be accurate as ROI contrast is less than 20%.
Sharpness measurement may not be accurate as slope of slanted edge deviates significantly from 5 degrees.
Sharpness measurement table. The rows of the sharpnessTable correspond to individual slanted edge ROIs numbered as displayed when using the displayChart function.

esfrChart