zhm000000的博客

load(‘mnist_uint8.mat’); tr_picture=cell(1,60000);for i=1:60000 tr_picture{1,i}=zeros(28);endfor k=1:60000for i=1:28 for j=1:28 tr_picture{1,k}(i,j)=train_x(k,(i-1)*28+j); endendtr_picture{1,k}=imcomplement(tr_picture{1,k});endte_picture=ce

大佬们，为什么BP神经网络会出现这种情况呢？