Multidimensional discrete convolution: Difference between revisions

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Row-Column Decomposition: Clarify math to show where the efficiency saving comes from
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</math>
 
The valuesvalue of <math>\sum_{k_2=-\infty}^{\infty} h_2(k_2)x(n_1-k_1,n_2-k_2)</math> can now be re-used when evaluating other <math>y</math> values with a shared value of <math>n_2</math>:
 
<math>