How can i make an array of 100 images ?

Question

Himanshu 2014-12-8

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评论： Walter Roberson 2018-2-6

I want to perform some feature vector operations on 100 images directly , how can i do that?

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Answer 1

Guillaume 2014-12-8

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You didn't give enough information to answer in any detail (for example what is the size of the images, how many channels, how are they stored, etc.), so:

If the images are all the same size concatenate them in a new dimension (dim 3 for single channel, dim 4 for RGB) with cat

If they're all different size, use a for loop.

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amara zafar 2018-2-6

my images arre in tiff format does it work same way

Walter Roberson 2018-2-6

Yes, you can use imread() with tif images. However, tif can store multiple images in the same file, so in some circumstances you might need to take extra steps.

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Answer 2

Himanshu 2014-12-8

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在 MATLAB Online 中打开

image_folder = 'C:\Users\user 1\Desktop\New folder (2)\my code\rear'; %  Enter name of folder from which you want to upload pictures with full path

filenames = dir(fullfile(image_folder, '*.png')); % read all images with specified extention, its jpg in our case total_images = numel(filenames); % count total number of photos present in that folder

 for n = 1:total_images
  full_name= fullfile(image_folder, filenames(n).name);         % it will specify images names with full path and extension
our_images = imread(full_name);                 % Read images  
   figure (n)                           % used tat index n so old figures are not over written by new new figures
    imshow(our_images)                  % Show all images
 end

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Answer 3

Stalin Samuel 2014-12-8

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编辑：Stalin Samuel 2014-12-8

for example if u have images named as 1.jpg,2.jpg,....n.jpg then

for i = 1:no_of_images currentimage = imread( sprintf('ur_image directory_folder/%d.JPG',i) ); //your feature calculation feature(i)=your calculation end