[Guus Hiddink]

I need to show the Fourier spectrum of the image and determine one dimensional spectrum in the form: S(theta)=sum(Sr(theta)), where the limits of the sum are r=1 and r=Ro where Ro is the radius of a circle centered at the origin. S(r,theta): S is the spectrum function and r and theta are the variables in polar coordinate system. For each frequency r, Sr(theta) is a 1-D function. Analyzing Sr(theta) for a fixed value of r yields the behavior along the circle centered on the origin. Can someone help me? Thanks

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