decode inverted qr codes by inverting image color (#72) (#73)

EddyTheCo · Feb 18, 2024 · e7483b6 · e7483b6
1 parent 4e96a58
commit e7483b6
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/QrDec/include/qrcodedec.hpp b/QrDec/include/qrcodedec.hpp
@@ -1,5 +1,4 @@
 #pragma once
-#include<opencv2/opencv.hpp>
 #include <opencv2/objdetect.hpp>
 #include<string>
 

diff --git a/QrDec/qrcodedec.cpp b/QrDec/qrcodedec.cpp
@@ -3,6 +3,11 @@
 std::string QRDecoder::decode_grey(unsigned char* img,int rows ,int cols)
 {
     cv::Mat greyImg = cv::Mat(rows,cols, CV_8UC1, img);
+    const auto str=detectAndDecode(greyImg);
+    if(str!="")
+        return str;
+    cv::bitwise_not(greyImg,greyImg);
+
     return detectAndDecode(greyImg);
 }