Interestingly, thisThis vector length is equivalent to the dimensions of the original matrix output <math>Z</math>, making converting back to a matrix a direct transformation. Thus, the vector, <math>Z''</math>, is converted back to matrix form, which produces the output of the two-dimensional discrete convolution.<ref name=":1">{{Cite journal|url = |title = Multidimensional convolution via a 1D convolution algorithm|last = Naghizadeh|first = Mostafa|date = November 2009|journal = The Leading Edge|doi = |pmid = |access-date = |last2 = Sacchi|first2 = Mauricio}}</ref>