imgproc: fix bit-exact GaussianBlur() / sepFilter2D() (#15855)

* imgproc: fix bit-exact GaussianBlur() / sepFilter2D() - avoid kernels with bad approximation - GaussiabBlur - apply error-diffusion approximation for kernel (8-bit fraction) * java(test): update features2d ref data * test: update test_facedetect
2019-11-18 01:39:27 +03:00
parent 955b20230c
commit f4d55d512f
13 changed files with 349 additions and 117 deletions
@@ -90,11 +90,11 @@ public class BruteForceSL2DescriptorMatcherTest extends OpenCVTestCase {
        matSize = 100;

        truth = new DMatch[] {
-                new DMatch(0, 0, 0, 0.3858146f),
+                new DMatch(0, 0, 0, 0.37933317f),
                new DMatch(1, 1, 0, 0.8421953f),
                new DMatch(2, 1, 0, 0.0968556f),
                new DMatch(3, 1, 0, 0.0855606f),
-                new DMatch(4, 1, 0, 0.8666080f)
+                new DMatch(4, 1, 0, 0.07033461f)
                };
    }