gnu: opencv: Loosen test suite failures.

* gnu/packages/image-processing.scm (opencv)[native-inputs]: Add patch
to opencv-contrib.
[arguments]: Update 'unpack-submodule-sources phase.
* gnu/packages/patches/opencv-rgbd-aarch64-test-fix.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

1 files changed, 40 insertions, 0 deletions

diff --git a/gnu/packages/patches/opencv-rgbd-aarch64-test-fix.patch b/gnu/packages/patches/opencv-rgbd-aarch64-test-fix.patch
new file mode 100644
index 0000000000..7792f8d1bf
--- /dev/null
+++ b/gnu/packages/patches/opencv-rgbd-aarch64-test-fix.patch
@@ -0,0 +1,40 @@
+https://github.com/opencv/opencv_contrib/commit/8aaa91c3dc835690477d7777e66948dbf5a87edc.patch
+
+From 8aaa91c3dc835690477d7777e66948dbf5a87edc Mon Sep 17 00:00:00 2001
+From: Tomoaki Teshima <tomoaki.teshima@gmail.com>
+Date: Mon, 5 Nov 2018 20:32:23 +0900
+Subject: [PATCH] avoid test failing on Aarch64   * loosen the threshold in
+ Rgbd_Normals.compute   * make the minimum tvec larger in
+ RGBD_Odometry_Rgbd.algorithmic
+
+---
+ modules/rgbd/test/test_normal.cpp   | 2 +-
+ modules/rgbd/test/test_odometry.cpp | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/modules/rgbd/test/test_normal.cpp b/modules/rgbd/test/test_normal.cpp
+index f2233553a7..ed54f2cd98 100644
+--- a/modules/rgbd/test/test_normal.cpp
++++ b/modules/rgbd/test/test_normal.cpp
+@@ -211,7 +211,7 @@ class CV_RgbdNormalsTest: public cvtest::BaseTest
+             std::cout << std::endl << "*** FALS" << std::endl;
+             errors[0][0] = 0.006f;
+             errors[0][1] = 0.03f;
+-            errors[1][0] = 0.00008f;
++            errors[1][0] = 0.0001f;
+             errors[1][1] = 0.02f;
+             break;
+           case 1:
+diff --git a/modules/rgbd/test/test_odometry.cpp b/modules/rgbd/test/test_odometry.cpp
+index 62b654a1ec..f5a2084504 100644
+--- a/modules/rgbd/test/test_odometry.cpp
++++ b/modules/rgbd/test/test_odometry.cpp
+@@ -213,7 +213,7 @@ void CV_OdometryTest::generateRandomTransformation(Mat& rvec, Mat& tvec)
+     normalize(rvec, rvec, rng.uniform(0.007f, maxRotation));
+ 
+     randu(tvec, Scalar(-1000), Scalar(1000));
+-    normalize(tvec, tvec, rng.uniform(0.007f, maxTranslation));
++    normalize(tvec, tvec, rng.uniform(0.008f, maxTranslation));
+ }
+ 
+ void CV_OdometryTest::run(int)