在Matlab中转换数组的维数

Question

As with my previous question:

I am using this function I got from the internet:

 >>[Y,U,V]=yuv_import('test.yuv',[176 144],150,0) 

I got this from: [Convert YUV CIF 4:2:0 video file to image files][1]

It prints out the Y, U and V components of the yuv file test.yuv. When I typed:

 >>Y 

It displayed:

 Y = Columns 1 through 5 [144x176 double] [144x176 double] [144x176 double] [144x176 double] [144x176 double] ............... Columns 146 through 150 [144x176 double] [144x176 double] [144x176 double] [144x176 double] [144x176 double] 

And..

 >>size(Y) 

displayed:

 ans = 1 150 

Doing the same for U and V components also showed the same results.

And also..

 >>Y(150) 

displayed:

 ans = [144x176 double] 

What I want is make an array for Y, U and V that has the dimensions [numberOfFrames height width] or [150 144 176]. How can I do this?

[1]: http://www.mathworks.com/matlabcentral/fileexchange/6318

I got the solution by using

>>Y = cat(3, Y{:} );

and I have a

>>size(Y1)

ans =

144 176 150

Now, what I want is to convert it back to its original dimensions. How can I do it?

Answer 1

使用mat2cell

>> Y = mat2cell( Y1, size(Y1,1), size(Y1,2), ones(1,size(Y1,3)) );