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Merge pull request #16094 from saskatchewancatch:issue-16053

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* Add eps error checking for approxPolyDP to allow sensible values only
for epsilon value of Douglas-Peucker algorithm.

* Review changes for PR
This commit is contained in:
RAJKIRAN NATARAJAN
2019-12-09 19:24:35 +00:00
committed by Alexander Alekhin
parent a2642d83d3
commit b9435b9e38
2 changed files with 28 additions and 0 deletions
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modules/imgproc/test/test_approxpoly.cpp
+21
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@@ -355,4 +355,25 @@ _exit_:
TEST(Imgproc_ApproxPoly, accuracy) { CV_ApproxPolyTest test; test.safe_run(); }
//Tests to make sure that unreasonable epsilon (error)
//values never get passed to the Douglas-Peucker algorithm.
TEST(Imgproc_ApproxPoly, bad_epsilon)
{
std::vector<Point2f> inputPoints;
inputPoints.push_back(Point2f(0.0f, 0.0f));
std::vector<Point2f> outputPoints;
double eps = std::numeric_limits<double>::infinity();
ASSERT_ANY_THROW(approxPolyDP(inputPoints, outputPoints, eps, false));
eps = 9e99;
ASSERT_ANY_THROW(approxPolyDP(inputPoints, outputPoints, eps, false));
eps = -1e-6;
ASSERT_ANY_THROW(approxPolyDP(inputPoints, outputPoints, eps, false));
eps = NAN;
ASSERT_ANY_THROW(approxPolyDP(inputPoints, outputPoints, eps, false));
}
}} // namespace