I understand that you are trying to perform a matrix operation involving arrays A and d, specifically computing an inverse expression like:
inv = (eye(d) + 2*tau*gamma1*A)^(-1);
However, your array A has size 256×256×4 and d is 1×1, which suggests a dimension mismatch — eye(d) creates a 1×1 identity matrix, but you likely want an identity matrix matching the first two dimensions of A.
To fix the dimension mismatch and perform the intended operation for each 2D slice of A, you can loop through the third dimension and compute the inverse per slice:
tau = 0.1; % example scalar
gamma1 = 0.5; % example scalar
A = rand(256,256,4); % example A
inv_result = zeros(256,256,4);
for k = 1:size(A,3)
inv_result(:,:,k) = inv(eye(256) + 2*tau*gamma1*A(:,:,k));
end
This way, you correctly apply the inverse operation to each 256×256 matrix slice in A.
Please find attached the documentation of functions used for reference:
I hope this hleps.
