From b47c9ac6434a62f7773947273e8d561bb65f0ca5 Mon Sep 17 00:00:00 2001
From: logic1988 <1988heqian@163.com>
Date: Thu, 23 Aug 2018 12:48:13 +0800
Subject: [PATCH] Update aff_trans.cpp

When the fullAffine parameter is set to false, the estimateRigidTransform function maybe return empty, then the _localAffineEstimate function will be called, but the bug in it will result in incorrect results.
---
 modules/shape/src/aff_trans.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/shape/src/aff_trans.cpp b/modules/shape/src/aff_trans.cpp
index 3316f0f41f..a4490f474f 100644
--- a/modules/shape/src/aff_trans.cpp
+++ b/modules/shape/src/aff_trans.cpp
@@ -165,8 +165,8 @@ static Mat _localAffineEstimate(const std::vector<Point2f>& shape1, const std::v
             }
             else
             {
-                therow.at<float>(0,0)=-shape1[contPt].y;
-                therow.at<float>(0,1)=shape1[contPt].x;
+                therow.at<float>(0,0)=shape1[contPt].y;
+                therow.at<float>(0,1)=-shape1[contPt].x;
                 therow.at<float>(0,3)=1;
                 therow.row(0).copyTo(matM.row(ii));
                 matP.at<float>(ii,0) = shape2[contPt].y;