how to find magnitude of image of size 256x384

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ganesh  s
ganesh s 2011 年 9 月 21 日
please tell me how to find and plot the magnitude of the image & how to quantize the output after finding it's magnitude
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Image Analyst
Image Analyst 2011 年 9 月 23 日
I still have no idea what you said. The gray scale image is already quantized. Do you want to quantize it in intensity differently? Like into fewer gray levels?

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Walter Roberson
Walter Roberson 2011 年 9 月 21 日
Finding the magnitude of the discrete Fourier transform does not calculate the magnitude of the image: it only finds the magnitude of the frequency components. If you were to quantize the frequency components and then ifft() to get back to an image, I suspect the result would be pretty messy.
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ganesh  s
ganesh s 2011 年 9 月 23 日
@ walter Roberson :thanks sir

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