From 826b77e567f170c4208ce2faff7e82ffee091e95 Mon Sep 17 00:00:00 2001
From: Julian Seuffert <julian.seuffert@etit.tu-chemnitz.de>
Date: Fri, 29 Mar 2019 13:43:22 +0100
Subject: [PATCH] ximgproc: Fix support for CV_32F WLS Filter

If the disparity maps have the depth CV_32F, they are wls-filtered
in `DisparityWLSFilterImpl::filter` but the result is not saved in the
OutputArray of the method. Now, the result is copied to that array.
---
 modules/ximgproc/src/disparity_filters.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/ximgproc/src/disparity_filters.cpp b/modules/ximgproc/src/disparity_filters.cpp
index 2bc826d0a..b384eaefc 100644
--- a/modules/ximgproc/src/disparity_filters.cpp
+++ b/modules/ximgproc/src/disparity_filters.cpp
@@ -244,6 +244,8 @@ void DisparityWLSFilterImpl::filter(InputArray disparity_map_left, InputArray le
     filter_(left, left_view, filt_disp, right, ROI);
     if (disparity_map_left.depth() != CV_32F){
         filt_disp.convertTo(filtered_disparity_map, disparity_map_left.depth());
+    } else {
+        filt_disp.copyTo(filtered_disparity_map);
     }
 }