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. 2019 Jun 30;19(13):2903. doi: 10.3390/s19132903
Algorithm 2 Filtering algorithm.
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    procedurefilter tucker(I, tr, ws, CND)

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      form a zero filled initial output image X of the same dimensions as I

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      for m=1:ws/4:M do

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       for n=1:ws/4:N do

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         GENERATE TENSOR(I, m, n, ws, CND)         ▹ generate filtering tensor

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         if tr=∅ then

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          for k=1:3 do

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            calculate tr[k] for k-axis using MDL

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          end for

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         end if

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         reconstruct window Y with Tucker reconstruction and the ranks tr

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         add window Y to X

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       end for

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      end for

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      rescale window X

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      return X

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    end procedure