Save a sequence of images in a new folder

2014 7 11
3 个回答
回答已采纳
更新时间：2017 12 31
7 次查看（30 天）

0 个投票

I have this code:
miFolder='C:\Users\karina\Documents\MATLAB\11';
if ~isdir(miFolder)
errorMensaje = sprintf('Error: El folder no existe:\n%s', miFolder);
uiwait(warndlg(errorMensaje));
return;
end
filePatron = fullfile(miFolder, '*.jpg');
jpegFil = dir(filePatron);
Resultados='C:\Users\karina\Documents\MATLAB\11\SerieN';
mkdir(Resultados);
for k = 1:10
baseFN = jpegFil(k).name;
fullFN = fullfile(miFolder, baseFN);
I=imread(fullFN);
I2=imcrop(I,[167.5 0.5 660 524]);
imwrite(I2,[Resultados,num2str(k),'.png']);
end
Then what I want is to save the images in the C:\Users\karina\Documents\MATLAB\11\SerieN location but the images of the SerieN are saved in the C:\Users\karina\Documents\MATLAB\11. All the images are saved as SerieN1.png, SerieN2.png and so on, that's ok but I need to those images will be saved in the correct folder. Thank you for your time. Regards.

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 采纳的回答

Image Analyst
Image Analyst 2014-7-11
编辑：Image Analyst 2017-12-31

2 个投票

If you're not going to use fullfile(), and use concatenation like you did, you need to add a trailing space to your folder. It's best to use fullfile() which takes care of all that for you.
baseFileName = sprintf('%d.png', k); % e.g. "1.png"
fullFileName = fullfile(Resultados, baseFileName); % No need to worry about slashes now!
imwrite(I2, fullFileName);

3 个评论
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Karina
Karina 2014-7-16
Thank you Image Analyst. Can I ask you a favor? I have a problem,I finally ended all my files in Matlab. But now the instruction is to compile and create dll in order to read them in Labview. Do you know something related about this? In fact I already have asked but nobody has answered yet. Also I've researched, but I didn't found the correct way to do this. I hope you can help me. Thank you.
Image Analyst
Image Analyst 2014-7-16
I've just compiled m-files into standalone executables, not DLLs, so I don't think I'm of much help there. Call the Mathworks and ask them. The compiler is very expensive so you might as well get something for your support payment.
Githae Wanyawira
Githae Wanyawira 2017-12-31
Thanks Analyst for the great assistance

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更多回答（2 个）

Ali Noori
Ali Noori 2015-6-12
编辑：Walter Roberson 2015-6-12

1 个投票

For example, if you have video (video.avi) in matlab directory and you want to convert this video into frame sequences and save them in new folder (IMAGESEQUENCES). write this code below:
%%code %%
video = VideoReader('video.avi');
OutVideoDir = 'IMAGESEQUENCES';
mkdir(OutVideoDir);
for i = 1:video.NumberOfFrames
img = read(video,i);
baseFileName = sprintf('%d.png', i); % e.g. "1.png"
fullFileName = fullfile(OutVideoDir, baseFileName);
imwrite(img, fullFileName);
end
David Young
David Young 2014-7-11

0 个投票

Instead of
imwrite(I2,[Resultados,num2str(k),'.png']);
try
imswrite(I2, fullfile(Resultados, ['SerieN', num2str(k), '.png']));

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