From dd454f7767df5e7d1b3cf8148dd387b4e8bd1067 Mon Sep 17 00:00:00 2001
From: Joan Sola <jsola@iri.upc.edu>
Date: Mon, 15 Nov 2021 14:10:06 +0100
Subject: [PATCH] Fix namespace for SIFT

---
 src/descriptors/sift/descriptor_sift.h | 2 +-
 src/detectors/sift/detector_sift.h     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/descriptors/sift/descriptor_sift.h b/src/descriptors/sift/descriptor_sift.h
index 609da42..ea69e58 100644
--- a/src/descriptors/sift/descriptor_sift.h
+++ b/src/descriptors/sift/descriptor_sift.h
@@ -48,7 +48,7 @@ inline void DescriptorSIFT::defineDescriptor(const ParamsBasePtr _params)
 {
     DescriptorParamsSIFTPtr params_ptr = std::static_pointer_cast<DescriptorParamsSIFT>(_params);
 
-    descriptor_ = cv::SIFT::create(params_ptr->nfeatures,
+    descriptor_ = cv::xfeatures2d::SIFT::create(params_ptr->nfeatures,
     		params_ptr->nOctaveLayers,
 			params_ptr->contrastThreshold,
 			params_ptr->edgeThreshold,
diff --git a/src/detectors/sift/detector_sift.h b/src/detectors/sift/detector_sift.h
index c54b872..fefc59a 100644
--- a/src/detectors/sift/detector_sift.h
+++ b/src/detectors/sift/detector_sift.h
@@ -53,7 +53,7 @@ inline void DetectorSIFT::defineDetector(const ParamsBasePtr _params)
 {
     DetectorParamsSIFTPtr params_ptr = std::static_pointer_cast<DetectorParamsSIFT>(_params);
 
-    detector_ = cv::SIFT::create(params_ptr->nfeatures,
+    detector_ = cv::xfeatures2d::SIFT::create(params_ptr->nfeatures,
     		params_ptr->nOctaveLayers,
 			params_ptr->contrastThreshold,
 			params_ptr->edgeThreshold,
-- 
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