extract image from array.

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Naseeb Gill 2015-12-30

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评论： Walter Roberson 2015-12-31

I take down some snapshots from logitech camera and images are stored in array form in pics folder name. Now I want to see those pictures (in png format). So how can i extract iamges from those array. number of images are 20.

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Walter Roberson 2015-12-30

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https://ww2.mathworks.cn/matlabcentral/answers/262199-extract-image-from-array#answer_204649

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

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Naseeb Gill 2015-12-31

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Thanks for pointing out my mistake. I solved this problem using following code:

 vid1 = videoinput('winvideo',1,'RGB24_640x480'); 
 vid2 = videoinput('winvideo',2,'RGB24_640x480');
 start(vid1);
start(vid2);
preview(vid1);
preview(vid2);
pics1 = cell(1,10)
pics2 = cell(1,10)
for i = 1: 10
    pause(5);
    pics1{i} = getsnapshot(vid1);
    pics2{i} = getsnapshot(vid2);
end
for i = 1:10
    FileName1 = sprintf( 'pica%d.png',i) ;
    fullFileName1 = fullfile( FileName1);
    imwrite(pics1{i}, fullFileName1);
    FileName2 = sprintf( 'picb%d.png',i) ;
    fullFileName2 = fullfile( FileName2);
    imwrite(pics2{i}, fullFileName2);
end
closepreview(vid1);
closepreview(vid2);
 clear ('vid1');
 clear ('vid2');

but now I'm facing a new problem that images store in default folder but i want to save images in predetermined folder say in 'image_folder' folder present on desktop. How can I do it???