image - For the array I am getting values either 0 and 255 and nothing in between for matlab? -

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i using code:

for m_cof=1:3     n_cof=1:3         fixed_term=(((2*(m_cof-1)+1)*(2*(n_cof-1)+1))/(g(1)*g(2)));         c(m_cof,n_cof)=0;         u=1:g(1)             y=((2*u)/g(1));             uof=polynomial1(y,m_cof);             v=1:g(2)                 z=((2*v)/g(2));                 vof=polynomial1(z,n_cof);                 f=f_template(u,v);                 iop=(fixed_term*f_template(u,v)*uof*vof)                 c(m_cof,n_cof)=iop+c(m_cof,n_cof)             end         end     end end`

where f_template rgb grey image array, but contents of c 0 , 255 , nothing in between can please help?

it looks experiencing saturation due data type image belongs to. overcome this, cast image double, try code again.

simply put, @ beginning of code before nested loops:

f_template = double(f_template);

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