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Hey there,

I am looking for the "best practice" to save a lot of images of type cv::Mat in the cache. Is it okay if I just push_back them in a vector<mat> and get back as soon as I need them? Reason for my question is, that I tried to load ~150 images (300 Mb) with imread and after 100 the system starts to slow down extremely. After having a look at the monitoring I noticed that the RAM of 5 GB is getting trashed until it breaks down. Code snippet for my image reading below:

    cout << "Start reading image inputs..." << endl;

vector<Mat> imagesArg;
for (int i = 1; i < argc; i++) {
    Mat img = imread(argv[i]);
    if (argc == 1){
        cout << "Not enough image data." << endl;
    }
    if (img.empty()) {
        cout << "Can't read image " << argv[i] << "." << endl;
        return 1;
    }
    imagesArg.push_back(img);
    img.release();
}
cout << "Finished reading " << imagesArg.size() << " images." << endl;

Thanks in advance for an answer!

Lax

Hey there,

I am looking for the "best practice" to save a lot of images of type cv::Mat in the cache. Is it okay if I just push_back them in a vector<mat> vector< Mat > and get back as soon as I need them? Reason for my question is, that I tried to load ~150 images (300 Mb) with imread and after 100 the system starts to slow down extremely. After having a look at the monitoring I noticed that the RAM of 5 GB is getting trashed until it breaks down. Code snippet for my image reading below:

    cout << "Start reading image inputs..." << endl;

vector<Mat> imagesArg;
for (int i = 1; i < argc; i++) {
    Mat img = imread(argv[i]);
    if (argc == 1){
        cout << "Not enough image data." << endl;
    }
    if (img.empty()) {
        cout << "Can't read image " << argv[i] << "." << endl;
        return 1;
    }
    imagesArg.push_back(img);
    img.release();
}
cout << "Finished reading " << imagesArg.size() << " images." << endl;

Thanks in advance for an answer!

Lax