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objdetect(QR): avoid bug with empty input

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This commit is contained in:
Alexander Alekhin 2020-03-21 00:51:34 +00:00
parent 0fb4f2cc9c
commit d7e839b8c5
1 changed files with 9 additions and 2 deletions
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11
modules/objdetect/src/qrcode.cpp
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@ -122,9 +122,16 @@ void QRDetect::init(const Mat& src, double eps_vertical_, double eps_horizontal_
eps_vertical = eps_vertical_; eps_vertical = eps_vertical_;
eps_horizontal = eps_horizontal_; eps_horizontal = eps_horizontal_;
adaptiveThreshold(barcode, bin_barcode, 255, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY, 83, 2);
adaptiveThreshold(resized_barcode, resized_bin_barcode, 255, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY, 83, 2);
if (!barcode.empty())
adaptiveThreshold(barcode, bin_barcode, 255, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY, 83, 2);
else
bin_barcode.release();
if (!resized_barcode.empty())
adaptiveThreshold(resized_barcode, resized_bin_barcode, 255, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY, 83, 2);
else
resized_bin_barcode.release();
} }
vector<Vec3d> QRDetect::searchHorizontalLines() vector<Vec3d> QRDetect::searchHorizontalLines()