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improve generated curve in histogram matching on underexposed pictures

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Alberto Griggio
2018-01-30 10:06:57 +01:00
parent 8af91ce74c
commit 71a3af0c86
1 changed files with 9 additions and 0 deletions
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9
rtengine/histmatching.cc
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@@ -120,6 +120,15 @@ void mappingToCurve(const std::vector<int> &mapping, std::vector<double> &curve)
curve.pop_back(); curve.pop_back();
curve.pop_back(); curve.pop_back();
} }
// remove the plateau at the end (if any)
size_t j = curve.size() / 2;
for (; j > 1; --j) {
if (std::abs(curve[2*(j-1)-1] - curve.back()) > 0.01) {
break;
}
}
curve.resize(2*j);
curve.push_back(1.0); curve.push_back(1.0);
curve.push_back(1.0); curve.push_back(1.0);