The line spread function of an imaging system is described by a rectangular box function
of width W millimeter (mm), i.e.,
L(x) = { 1, | x | < W/2
{ 0, otherwise
a. What is the resolution of this imaging system in terms of FWHM (full width at half maximum) and in terms of lines/mm?
b. Suppose the field to be imaged contains 3 parallel bars of width W mm, spread nonuniformly, with the darkness profile. Determine the darkness profile of the bars after imaging. Can you still tell all the bars apart? How bars will you see? What will be their respective width?