conv2br.m

超声图像实时消噪实验程序

function g = conv2br( f, w )
% convolve 2d with repetition of the border
N = size(f,1);
M = size(f,2);
K = (size(w,1)-1)/2;
L = (size(w,2)-1)/2;
iind = min(max((1:(N+2*K))-K,1),N);
jind = min(max((1:(M+2*L))-L,1),M);
fwb = f(iind,jind);
g=conv2(fwb,w,'valid');