imshow command will not display my images
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Hi all, I am currently trying to randomly present 21 images, one after the other, all located within the same folder. When I run my code, Matlab does not display any errors, but no images are shown either. I currently have the following code;
dirname= 'C:\Users\User\Documents\MATLAB\stimuli\';
d=dir([dirname '*.jpg']);
for i= randperm(numel(d))
imshow(d(i).name)
pause(2);
end
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回答(3 个)
KSSV
2019-1-29
d=dir([dirname '*.jpg']);
for i= randperm(numel(d))
I = imread(d(i).name) ;
imshow(I)
pause(2);
end
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Walter Roberson
2019-1-29
dirname= 'C:\Users\User\Documents\MATLAB\stimuli\';
d=dir(fullfile(dirname, '*.jpg'));
for i = randperm(numel(d))
imshow( fullfile(dirname, d(i).name) )
pause(2);
end
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Stephen23
2019-1-29
编辑:Stephen23
2019-1-29
The reason is very simple: you forgot to use the path when you tried to read the file:
D = 'C:\Users\User\Documents\MATLAB\stimuli';
S = dir(fullfile(D,'*.jpg'));
for k = randperm(numel(S))
imshow(fullfile(D,S(k).name))
pause(2);
end
Note that it is recommended to avoid using i for a loop iterator, as this is the name of the imaginary unit. Using fullfile is recommended instead of string concatenation:
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