From 80ac19a50795dea80c4bad33588e1fc6df1ef3e6 Mon Sep 17 00:00:00 2001 From: Stefan Klug Date: Tue, 1 Apr 2025 14:36:13 +0200 Subject: libipa: histogram: Fix interQuantileMean() for small ranges The interQuantileMean() is supposed to return a weighted mean value between two quantiles. This works for fine histograms, but fails for coarse histograms and small quantile ranges because the weight is always taken from the lower border of the bin. Fix that by rewriting the algorithm to calculate a lower and upper bound for every (partial) bin that goes into the mean calculation and weight the bins by the middle of these bounds. Signed-off-by: Stefan Klug Acked-by: Kieran Bingham Reviewed-by: Laurent Pinchart --- test/ipa/libipa/meson.build | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'test') diff --git a/test/ipa/libipa/meson.build b/test/ipa/libipa/meson.build index 83c84bd8..8c63ebd8 100644 --- a/test/ipa/libipa/meson.build +++ b/test/ipa/libipa/meson.build @@ -2,7 +2,7 @@ libipa_test = [ {'name': 'fixedpoint', 'sources': ['fixedpoint.cpp']}, - {'name': 'histogram', 'sources': ['histogram.cpp'], 'should_fail': true}, + {'name': 'histogram', 'sources': ['histogram.cpp']}, {'name': 'interpolator', 'sources': ['interpolator.cpp']}, ] -- cgit v1.2.1