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fix: add a safe score threshold(1E-5) to wechat_qrcode detector

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chester
2021-03-21 16:45:11 +08:00
parent d882e6c873
commit ba281ca104
1 changed files with 2 additions and 1 deletions
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3
modules/wechat_qrcode/src/detector/ssd_detector.cpp
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@@ -31,7 +31,8 @@ vector<Mat> SSDDetector::forward(Mat img, const int target_width, const int targ
const float* prob_score = prob.ptr<float>(0, 0, row);
// prob_score[0] is not used.
// prob_score[1]==1 stands for qrcode
if (prob_score[1] == 1) {
if (prob_score[1] == 1 && prob_score[2] > 1E-5) {
// add a safe score threshold due to https://github.com/opencv/opencv_contrib/issues/2877
// prob_score[2] is the probability of the qrcode, which is not used.
auto point = Mat(4, 2, CV_32FC1);
float x0 = CLIP(prob_score[3] * img_w, 0.0f, img_w - 1.0f);