PLEASE EXPLAIN The SUM operation on an (L,M,N) array returns a (1,M,N) array. CODE THAT FOLLOWS IS AS WRITTEN gray_average_2d(1:m,1:n) = gray_average(1,1:m,1:n); ?

Question

Gursheen 2014-3-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/119927-please-explain-the-sum-operation-on-an-l-m-n-array-returns-a-1-m-n-array-code-that-follows-is-a

评论： Gursheen 2014-3-3

PLEASE EXPLAIN THE STATEMENT ALONG THE CODE...THIS STATEMENT IS BEING USED FOE ENHANCING THE CONTRAST OF AN IMAGE. AFTER THIS THE NEXT CODING FOLLOWS...

2 个评论
显示无隐藏无

Jos (10584) 2014-3-3

YOU DO NOT HAVE TO SHOUT, WE ARE NOT BLIND!!

Please, use lower case and be a little bit more polite, … unless you are my boss and pay me lots ;-)

Gursheen 2014-3-3

lol...ok...is that fine now sir...??....now please also try and help me out..i am stuck with the coding part....thanks

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Jos (10584) 2014-3-3

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/119927-please-explain-the-sum-operation-on-an-l-m-n-array-returns-a-1-m-n-array-code-that-follows-is-a#answer_126878

在 MATLAB Online 中打开

It is because you asked for a single slice in a 3D array. This might help you

A = reshape(1:(2*3*4),2,3,4) ; % 3D test data, a cube with 2 slices. Each slice is 3-by-4
B = A(1,:,:)  % still 3D, but with only one slice, so you could say it is 2D
C = squeeze(B) % squeeze out the singleton dimensions
help squeeze

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Gursheen 2014-3-3

ok...thanks sir...but what exactly is slice????? please elaborate a little more... is it that (1,m,n) here means that we are dealing with only one face of the 3d image..although i am not using 3d image....:(

请先登录，再进行评论。