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LSD: support vector<Vec4i> lines (#11042)

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* add LSD supportsVec4iResult

* LineSegmentDetector.drawSegments: support vector<Vec4i>

* test_lsd.cpp: replace detect()

* test_lsd.cpp: add compareSegments tests

* lsd.cpp: LSD.compareSegments support Vec4i

* test_lsd.cpp: fix trailing whitespace
This commit is contained in:
shimat
2018-04-09 23:31:56 +09:00
committed by Vadim Pisarevsky
parent 72cb06abf0
commit e172935658
2 changed files with 176 additions and 18 deletions
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modules/imgproc/test/test_lsd.cpp
+138
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@@ -51,6 +51,14 @@ protected:
};
class Imgproc_LSD_Common : public LSDBase
{
public:
Imgproc_LSD_Common() { }
protected:
};
void LSDBase::GenerateWhiteNoise(Mat& image)
{
image = Mat(img_size, CV_8UC1);
@@ -264,4 +272,134 @@ TEST_F(Imgproc_LSD_NONE, rotatedRect)
ASSERT_EQ(EPOCHS, passedtests);
}
TEST_F(Imgproc_LSD_Common, supportsVec4iResult)
{
for (int i = 0; i < EPOCHS; ++i)
{
GenerateWhiteNoise(test_image);
Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
detector->detect(test_image, lines);
std::vector<Vec4i> linesVec4i;
detector->detect(test_image, linesVec4i);
if (lines.size() == linesVec4i.size())
{
bool pass = true;
for (size_t lineIndex = 0; pass && lineIndex < lines.size(); lineIndex++)
{
for (int ch = 0; ch < 4; ch++)
{
if (cv::saturate_cast<int>(lines[lineIndex][ch]) != linesVec4i[lineIndex][ch])
{
pass = false;
break;
}
}
}
if (pass)
++passedtests;
}
}
ASSERT_EQ(EPOCHS, passedtests);
}
TEST_F(Imgproc_LSD_Common, drawSegmentsVec4f)
{
GenerateConstColor(test_image);
std::vector<Vec4f> linesVec4f;
RNG cr(0); // constant seed for deterministic test
for (int j = 0; j < 10; j++) {
linesVec4f.push_back(
Vec4f(float(cr) * test_image.cols, float(cr) * test_image.rows, float(cr) * test_image.cols, float(cr) * test_image.rows));
}
Mat actual = Mat::zeros(test_image.size(), CV_8UC3);
Mat expected = Mat::zeros(test_image.size(), CV_8UC3);
Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
detector->drawSegments(actual, linesVec4f);
// something should be drawn
ASSERT_EQ(sum(actual == expected) != Scalar::all(0), true);
for (size_t lineIndex = 0; lineIndex < linesVec4f.size(); lineIndex++)
{
const Vec4f &v = linesVec4f[lineIndex];
const Point2f b(v[0], v[1]);
const Point2f e(v[2], v[3]);
line(expected, b, e, Scalar(0, 0, 255), 1);
}
ASSERT_EQ(sum(actual != expected) == Scalar::all(0), true);
}
TEST_F(Imgproc_LSD_Common, drawSegmentsVec4i)
{
GenerateConstColor(test_image);
std::vector<Vec4i> linesVec4i;
RNG cr(0); // constant seed for deterministic test
for (int j = 0; j < 10; j++) {
linesVec4i.push_back(
Vec4i(cr(test_image.cols), cr(test_image.rows), cr(test_image.cols), cr(test_image.rows)));
}
Mat actual = Mat::zeros(test_image.size(), CV_8UC3);
Mat expected = Mat::zeros(test_image.size(), CV_8UC3);
Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
detector->drawSegments(actual, linesVec4i);
// something should be drawn
ASSERT_EQ(sum(actual == expected) != Scalar::all(0), true);
for (size_t lineIndex = 0; lineIndex < linesVec4i.size(); lineIndex++)
{
const Vec4f &v = linesVec4i[lineIndex];
const Point2f b(v[0], v[1]);
const Point2f e(v[2], v[3]);
line(expected, b, e, Scalar(0, 0, 255), 1);
}
ASSERT_EQ(sum(actual != expected) == Scalar::all(0), true);
}
TEST_F(Imgproc_LSD_Common, compareSegmentsVec4f)
{
GenerateConstColor(test_image);
Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
std::vector<Vec4f> lines1, lines2;
lines1.push_back(Vec4f(0, 0, 100, 200));
lines2.push_back(Vec4f(0, 0, 100, 200));
int result1 = detector->compareSegments(test_image.size(), lines1, lines2);
ASSERT_EQ(result1, 0);
lines2.push_back(Vec4f(100, 100, 110, 100));
int result2 = detector->compareSegments(test_image.size(), lines1, lines2);
ASSERT_EQ(result2, 11);
}
TEST_F(Imgproc_LSD_Common, compareSegmentsVec4i)
{
GenerateConstColor(test_image);
Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
std::vector<Vec4i> lines1, lines2;
lines1.push_back(Vec4i(0, 0, 100, 200));
lines2.push_back(Vec4i(0, 0, 100, 200));
int result1 = detector->compareSegments(test_image.size(), lines1, lines2);
ASSERT_EQ(result1, 0);
lines2.push_back(Vec4i(100, 100, 110, 100));
int result2 = detector->compareSegments(test_image.size(), lines1, lines2);
ASSERT_EQ(result2, 11);
}
}} // namespace