www.pudn.com > watermarking-with-Hus-moments.rar > invmoments.m, change:2015-05-13,size:273b


function phi=invmoments(F) 
if (ndims(F)~=2)|| issparse(F)||~isreal(F)||... 
~(isnumeric(F)||islogical ( F ) ) 
error(['F must be a 2 - D , real , nonsparse , numeric or logical '... 
' matrix . ' ]); 
end 
F = double(F)  ; 
phi = compute_phi(compute_eta(compute_m ( F )));