How to change from cell to array

Question

nahyun lee 2020-3-20

0
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https://ww2.mathworks.cn/matlabcentral/answers/511882-how-to-change-from-cell-to-array

评论： nahyun lee 2020-3-20

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Hi all,

I want this code to run on the GPU.

Maybe O = (num2cell (O, [1 2])) of the RainDetect function; The part is expected to be a problem.

Since this part is a cell, the gpu operation does not seem to work.

I want to change from cell to array, is there a good way?

O = gather(video_ycbcr(gpuArray(video))); % Transfer RGB to YCbCr and retain Y only
O_cpu = {};
O_cpu{1} = O(:,:,001:149);% Can be easily extend to multiple GPU
O_gpu{1} = gpuArray(O_cpu{1});% Move array from CPU to GPU for acceleration
R_gpu{1} = RainDetect(O_gpu{1},paras);
R_cpu{1} = gather(cat(3,R_gpu{1}{:}));
R = R_cpu{1};
%==============================================================================
function [R,iter]=RainDetect(O,paras)
[m,n,t] = size(O);
O = (num2cell(O,[1 2]));
R{1} = gpuArray(zeros(m,n));
B{1} = O{1}-R{1};
iter{1} = 0;
[R{2},B{2},iter{2}]=RainDetect_i(O{2},B{1},paras);
for i = 3:t
    disp(i);
    [R{i},B{i},iter{i}]=RainDetect_i(O{i},B{i-1},paras);
end
   