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vector of vectors

asked 2014-03-31 05:11:07 -0500

yamanneameh gravatar image

updated 2016-01-10 15:54:56 -0500

Hello,

I am looping through multiple files to read images inside each one, I got the files paths and number of images in each file:

//here is part of the code:

vector <Mat>& Images;

for( size_t i = 0; i < ImagesCounts.size(); i++ )
    {
       Mat img = imread( filename, 1 ); //
       Images.push_back( img );
}

I read by this code the images of the first file so: Images[0]= img1 , Images[1]=img2 .....

I am now in the second loop (which has different filename and ImageCounts)

and I need to save first vector of Images in a global vector.. this mean:

FilesVector(vect[1],vect[2]......vect[N]); N is number of files

where: vect[1] should include the images of the first file vect[2] should include the images of the second file

So how I can define the global vector and push the images I have in the first loop to vect[1].. ?

I tried this code before going to the second loop but didn't work!

vector<vector<Mat>> FilesVector;
FilesVector[0]=Images;
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answered 2014-03-31 06:14:40 -0500

For the first loop, it should be:

vector <Mat> Images;

For the second loop, it shoud be:

vector<vector<Mat>> FilesVector;
FilesVector.push_back(Images);
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Comments

This not work because if you have in first file 20 images and in the second 10 images at the end you will get FilesVector[30] (with 30 images) but what I need is FilesVector[ vict(20) , vict(10)] so finally when I call FilesVector[0] this mean that I call the images in the first file

yamanneameh gravatar imageyamanneameh ( 2014-03-31 06:26:55 -0500 )edit

For the second loop, you will have FilesVector[0] (a vector of Mats) containing images from 1st file, FilesVector[1] (another vector of Mats) containing images from 2nd files. Did you test that for sure?

tuannhtn gravatar imagetuannhtn ( 2014-03-31 06:42:09 -0500 )edit
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Asked: 2014-03-31 05:11:07 -0500

Seen: 1,257 times

Last updated: Mar 31 '14