How use the dequantization in matlab?

2015 11 17
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更新时间：2015 11 17
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Hello guys.
I use the function quantiz, and lloyds to quantize one matrix, the code is the next:
level= 2;
interval = (max(r(:))-min(r(:)))/2^level;
partition = (min(r(:))+ intervalo_r: intervalo: max(r(:)));
[~,idx] = max(partition);
partition(idx) = [];
codebook = (min(r(:)) + intervalo/2.0: intervalo: max(r(:)));
[Uindex,Uquants,Udistor] = quantiz(r(:),partition,codebook);
The Uindex is the index of quants for matrix r, and the Uquants it´s the values of quantization.
I need "desquantize" the Uquants, how i can get this?
thank you
Best regards
Pedro

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