www.gusucode.com > Diabetic retinopathy > enhance_composite_alpha_rooting.m
function Y =enhance_composite_alpha_rooting(C,alpha,maxDC) [h w d]=size(C); Y=C; X=C(:,:,1); U=C(:,:,2); V=C(:,:,3); for i=1:h for j=1:w if(abs(X(i,j))>1e-3) X(i,j)=X(i,j)*(abs(X(i,j))/maxDC)^(alpha-1); end end end Y(:,:,1)=X; Y(:,:,2)=U; Y(:,:,3)=V; return