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image 2-d Fouriertransform ?
Hello, sorry for this question but .. i have a 2-d image with 8 bit grey level. Now i make a 2-d-Fouriertransform of the image (in Mathematica) The result is a Picture with 4 quadrants, were the signals are significant. Now my questions: I think, only the first quadrant ist important ? Rest ist random ? What does the axis, the results means ? If someone canl help me, i can send an example for better understanding. In this case, the Helpfunktion in Mathematica ist not to good. Thanks in advance Maurus