i have done 2d dft for image without using function(fft2) and received dft image.now i have to get magnitude and phase image of dft image.help me..
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how can i get separated magnitude and phase image..i have done 2d dft without using built-in function.
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Walter Roberson
il 30 Dic 2013
magnitude image is abs() of the dft, plotted as an image. phase image is angle() of the dft, plotted as an image.
Remember that dft may have a large component for the first entry, representing the total offset from 0 (sum() of the signal). This tends to swamp everything else, and you need to decide how you are going to deal with it. You can use imshow(TheArray,[]) or imagesc(TheArray) but you might not get much readable in most of the image.
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