how to find the difference between the energies in lower frequency band and higher frequency band?

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mano 2012-1-20

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i built the edge oriented histogram of an image and i dont know how to find the difference between the energies in lower frequency band and higher frequency band from this histogram?anyone who know about this help me.

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Walter Roberson 2012-1-20

If you have N counts for a single frequency bin that runs from F1 to F2, then how much energy does that represent?

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