third index in three dimention array

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Rd
Rd 2020-7-24
评论： Stephen23 2020-7-24
kindly explain me about the following line
Vt = zeros(img_h, img_w, 4);
i know the following line if(img_h=2, img_w=3)
zeros (img_h, img_w)=[0 0 0; 0 0 0]
but i cant clearly understand the third dimention

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KSSV
KSSV 2020-7-24
You matrices can be 1D, 2D, 3D or nD...where D stands for dimensional.
A = zeros(2,2,2) ;
The above A has 2 matrices of size 2X2 having zeros.
B = ones(3,4,5) ;
The above matrix has 5 matrices each os size 3*4.
I = imread("cameraman.tif") ;
size(I)
Check the size of I above. So nD matrices are possible, in your case third dimension stands for that.

更多回答（1 个）

madhan ravi
madhan ravi 2020-7-24
Imagine that 2 X 3 matrix is copied 4 times.

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