Merge pull request #7879 from alalek:backport_7852

8 years ago · c7ae26bf24
parent 22df206e1f 8444c23803
commit c7ae26bf24
1 changed files with 3 additions and 1 deletions
--- a/modules/features2d/src/orb.cpp
+++ b/modules/features2d/src/orb.cpp
@ -736,7 +736,9 @@ void ORB::operator()( InputArray _image, InputArray _mask, vector<KeyPoint>& _ke
    //ROI handling
    const int HARRIS_BLOCK_SIZE = 9;
    int halfPatchSize = patchSize / 2;
-    int border = std::max(edgeThreshold, std::max(halfPatchSize, HARRIS_BLOCK_SIZE/2))+1;
+    // sqrt(2.0) is for handling patch rotation
+    int descPatchSize = cvCeil(halfPatchSize*sqrt(2.0));
+    int border = std::max(edgeThreshold, std::max(descPatchSize, HARRIS_BLOCK_SIZE/2))+1;

    Mat image = _image.getMat(), mask = _mask.getMat();
    if( image.type() != CV_8UC1 )