vector Mat crashes

asked 2016-06-28 08:46:53 -0600

Hello,

I did sample code which add each time Mat to a vector

header :

std::vector<cv::Mat> Histograms

sources

 // hist -> cv::Mat
// each time add new hist
    Histograms.push_back(hist);
    std::cout << hist << std::endl;

//
for(unsigned int i = 0; i < Histograms.size(); i++) {
    std::cout << Histograms[i].cols << std::endl;
    std::cout << Histograms[i] << std::endl;
}

the cout of hist work normaly, but the cout of each Histgrams crashed, the weird thing each time crash in different row?

example of output :

59
[517, 45, 85, 46, 46, 46, 78, 84, 81, 236, 221, 132, 182, 262, 706, 134, 79, 189, 292, 438, 267, 53, 59, 66, 184, 315, 161, 85, 34, 57, 47, 135, 68, 65, 49, 65, 38, 91, 238, 44, 46, 21, 148, 183, 115, 42, 53, 331, 108, 26, 9, 180, 58, 53, 126, 37, 175, 325, 1160]
59
[536, 108, 61, 79, 36, 26, 85, 64, 42, 301, 450, 127, 92, 101, 549, 114, 128, 116, 235, 226, 120, 26, 76, 95, 133, 166, 97, 77, 41, 94, 80, 143, 146, 68, 45, 33, 82, 131, 254, 99, 56, 40, 326, 318, 148, 60, 100, 336, 183, 52, 49, 120, 80, 86, 105, 59, 153, 337, 1126]
59
[454, 95, 59, 94, 73, 72, 97, 72, 65, 127, 259, 100, 87, 100, 350, 119, 67, 96, 244, 332, 119, 66, 83, 92, 139, 318, 158, 68, 39, 93, 122, 260, 386, 140, 41, 72, 106, 102, 287, 203, 70, 31, 146, 210, 174, 90, 81, 330, 133, 84, 57, 162, 70, 90, 107, 39, 129, 334, 1023]
59
[470, 68, 85, 73, 45, 86, 118, 75, 93, 423, 537, 119, 103, 163, 661, 265, 86, 71, 128, 174, 204, 56, 44, 67, 98, 155, 77, 64, 28, 59, 63, 137, 149, 152, 68, 40, 58, 85, 192, 82, 79, 43, 204, 314, 141, 63, 125, 469, 139, 53, 30, 156, 50, 44, 46, 38, 150, 299, 1052]
59
[396, 61, 66, 77, 42, 87, 94, 88, 81, 282, 356, 163, 136, 165, 595, 180, 85, 122, 258, 306, 195, 63, 31, 94, 158, 316, 145, 102, 36, 69, 58, 252, 200, 119, 64, 46, 57, 84, 198, 69, 47, 35, 258, 331, 100, 41, 80, 337, 180, 40, 24, 168, 79, 44, 98, 52, 151, 289, 866]
59
[302, 97, 38, 91, 14, 43, 168, 41, 50, 338, 627, 163, 123, 178, 672, 136, 58, 126, 222, 451, 136, 41, 10, 45, 140, 292, 128, 89, 45, 62, 92, 166, 544, 127, 43, 29, 48, 83, 162, 87, 73, 24, 167, 385, 114, 91, 111, 410, 111, 32, 28, 162, 17, 24, 111, 18, 192, 176, 663]
59
    The program has unexpectedly finished.

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vector<cv::Mat> hists; vector<string> files = { "1.pgm", "2.pgm", "4.pgm" }; int histSize = 256; float range[] = { 0, 256 }; const float* histRange = { range }; bool uniform = true; bool accumulate = false; Mat img; Mat hist; for (int i = 0; i < files.size(); i++) { img = cv::imread(files[i], 0); cv::calcHist(&img, 1, 0, Mat(), hist, 1, &histSize, &histRange, uniform, accumulate); hists.push_back(hist); } for (int i = 0; i < files.size(); i++) { cout << hists[i].rows << endl; cout << hists[i].t() << endl; }

Mat img; for (int i = 0; i < files.size(); i++) { Mat hist; img = cv::imread(files[i], 0); cv::calcHist(&img, 1, 0, Mat(), hist, 1, &histSize, &histRange, uniform, accumulate); hists.push_back(hist); } for (int i = 0; i < files.size(); i++) { cout << hists[i].rows << endl; cout << hists[i].t() << endl; }

Mat img; Mat hist; for (int i = 0; i < files.size(); i++) { img = cv::imread(files[i], 0); cv::calcHist(&img, 1, 0, Mat(), hist, 1, &histSize, &histRange, uniform, accumulate); hists.push_back(hist.clone()); } for (int i = 0; i < files.size(); i++) { cout << hists[i].rows << endl; cout << hists[i].t() << endl; }

vector Mat crashes

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vector Mat crashes