How to convert a column vector into an image

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Hello sir
I have an vector of size (258x1). Now I want to convert it into a square matrix (101x101) i.e. in 2D image in matlab.
Please help me.
  7 个评论
Walter Roberson
Walter Roberson 2019-5-23
What data type is the vector, such that it has two values per entry ?
Boni_Pl
Boni_Pl 2019-5-23
if A=[1;2;3;6;4;8;9] and coordinates are C=[3 4;1 2;5 6;4 5;5 3;1 6;6 6] so if a matrix is B=zeros(6, 6) then how can I replace each elements of A vector with B matrix using the coordinates points

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采纳的回答

Walter Roberson
Walter Roberson 2019-5-23
nrow = 6; ncol = 6;
B = full( sparse(C(:,1), C(:,2), A, nrow, ncol) );
Or
nrow = 6; ncol = 6;
B = accumarray(C, A(:), [nrow ncol]);

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