image normalization

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It depends how you need to implement it.

If you can cope using normalisation factors from the previous frame you minimise any video buffering as you can normallise and run the FFT on the fly, using old rescale co-efficients.

But if this will upset the FFT, then you will need some serious video buffering.

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thanks tricky for your interest in this regard,

in vhdl how we will decide our normalization factor of a frame? can you plz guide me..

thank you

Rizwan