How to create a single .mat file from multiple images?

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Le Nguyen
Le Nguyen 2012 年 10 月 5 日
コメント済み: Shourya 2022 年 1 月 19 日
Hi all,
Assume that I have 5 images as following: 1.bmp, 2.bmp, 3.bmp, 4.bmp, 5.bmp. I want to combine those 5 images into a single .mat file. Anyone knows how to solve this issue, please help me!!
Thanks in advance!!
  2 件のコメント
naila
naila 2013 年 8 月 1 日
Hi I have the same problem with images: 01.dcm, 02.dcm, 03.dcm ... 22.dcm;
%d isn't working for 01.dcm. what should I do Please
Azzi Abdelmalek
Azzi Abdelmalek 2013 年 8 月 1 日
What is the error message?

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採用された回答

Azzi Abdelmalek
Azzi Abdelmalek 2012 年 10 月 5 日
編集済み: Azzi Abdelmalek 2012 年 10 月 5 日
for k=1:5
h{k}=imread(sprintf('%d.bmp',k));
end
save file h
  7 件のコメント
Le Nguyen
Le Nguyen 2012 年 10 月 6 日
Hi all,
After taking a look around Matlab for a while, I seem to know how to solve this issue!! You are right, Matt J!! My bitmap files are all 3D as well as colourful!! That's why Matt Kindig's solution didnt work at all!! Here is my modification and it really works well!!
img = rgb2gray(imread('1.bmp'));
[r,c]= size(img);
h = NaN(r,c,5); %pre-allocate memory
h(:,:,1) = img;
for k=2:5
h(:,:,k) = rgb2gray(imread(sprintf('%d.bmp',k)));
end
save filename h
I am totally a newbie to Matlab, thus, all of your suggestions are always helpful to me and I am really in debt of it!!
Again, thanks a lot!! :)
PS: if there are any modifications for better performance as well as optimization, please let me know!!
Jan
Jan 2013 年 8 月 1 日
編集済み: Jan 2013 年 8 月 1 日
@Le: Please be careful with the exclamation marks. The have a lot of power in English, e.g. much more than in German.
Your solution looks fine and efficient. Disk access like imread has the benefit, that it is such slow, that improvements in other parts of the code are usually not significant.

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その他の回答 (1 件)

mona
mona 2017 年 2 月 3 日
how to deal with images in a single .mat file?
  1 件のコメント
Shourya
Shourya 2022 年 1 月 19 日
Hi,
Have you figured out how to display multiple images stored in a single .mat file? Please help.

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