C = mat2cell(I, [10 10], [10 11]);
C{1,1}( C{1,1}==0 ) = 1;
C{1,2}( C{1,2}==0 ) = 2;
C{2,2}( C{2,2}==0 ) = 3;
I2 = cell2mat(C);

2楼: Originally posted by somomo91 at 2017-06-28 05:51:28
有好多方法，这里你的问题很简单，可以用最简单的方法之一，比如
C = mat2cell(I, , );
C{1,1}( C{1,1}==0 ) = 1;
C{1,2}( C{1,2}==0 ) = 2;
C{2,2}( C{2,2}==0 ) = 3;
I2 = cell2mat(C);
...