// Returns true if contains some faces. Hilight with a rectangle the face on the
// image.
std::vector<cv::Rect> FaceClassifier::classify(const cv::Mat& image) {
std::vector<cv::Rect> allCandidates;
cv::Mat1b gray = Preprocessor::gray(image);
// pyramid downsampling
// from smaller to bigger.
// avoid to search where a face in a lower scale is found < image, scale
// factor >
std::vector<std::pair<cv::Mat1b, float>> pyramid;
for (float factor = 1;; factor *= _scaleFactor) {
// Size of the image scaled down (from bigger to smaller)
cv::Size sz(image.cols / factor, image.rows / factor);
// Difference between sized of the scaled image and the original detection
// window
cv::Size sz1(sz.width - _windowSize.width, sz.height - _windowSize.height);
// if the actual scaled image is smaller than the origina detection window,
// break
if (sz1.width < 0 || sz1.height < 0) {
break;
}
cv::Mat1b level;
cv::resize(gray, level, sz, 0, 0, cv::INTER_NEAREST);
pyramid.push_back(std::pair<cv::Mat1b, float>(level, factor));
}
// from smaller to bigger
for (auto rit = pyramid.rbegin(); rit != pyramid.rend(); rit++) {
cv::Mat1b level = (*rit).first;
float factor = (*rit).second;
_slidingSearch(level, factor, allCandidates);
}
return allCandidates;
}
static void test_CSize()
{
CSize empty;
ok(empty.cx == 0, "Expected cx to be 0, was %ld\n", empty.cx);
ok(empty.cy == 0, "Expected cy to be 0, was %ld\n", empty.cy);
CSize szPointA(10, 25);
SIZE sz;
sz.cx = 10;
sz.cy = 25;
CSize szPointB(sz);
POINT pt;
pt.x = 10;
pt.y = 25;
CSize szPointC(pt);
CPoint ptObject(10, 25);
CSize szPointD(ptObject);
DWORD dw = MAKELONG(10, 25);
CSize szPointE(dw);
ok_size(szPointA, szPointB);
ok_size(szPointB, szPointC);
ok_size(szPointC, szPointD);
ok_size(szPointD, szPointE);
ptObject = szPointA + pt;
CPoint res(20,50);
ok_point(ptObject, res);
ptObject = szPointA - pt;
res = CPoint(0, 0);
ok_point(ptObject, res);
CSize sz1(135, 135);
CSize sz2(135, 135);
ok_size(sz1, sz2);
sz1 = CSize(222, 222);
sz2 = CSize(111, 111);
ok(sz1 != sz2, "Wrong size, expected '%s' NOT to equal '%s'\n", wine_dbgstr_size(&sz1), wine_dbgstr_size(&sz2));
sz1 = CSize(100, 100);
sz2 = CSize(50, 25);
sz1 += sz2;
CSize szResult(150, 125);
ok_size(sz1, szResult);
sz1 = CSize(100, 100);
SIZE sz3;
sz3.cx = 50;
sz3.cy = 25;
sz1 += sz3;
ok_size(sz1, szResult);
sz1 = CSize(100, 100);
sz1 -= sz2;
szResult = CSize(50, 75);
ok_size(sz1, szResult);
sz3.cx = 50;
sz3.cy = 25;
sz1 = CSize(100, 100);
sz1 -= sz3;
ok_size(sz1, szResult);
sz1 = CSize(100, 100);
CSize szOut;
szOut = sz1 + sz2;
szResult = CSize(150, 125);
ok_size(szOut, szResult);
sz3.cx = 50;
sz3.cy = 25;
szOut = sz1 + sz3;
ok_size(szOut, szResult);
szOut = sz1 - sz2;
szResult = CSize(50, 75);
ok_size(szOut, szResult);
sz3.cx = 50;
sz3.cy = 25;
szOut = sz1 - sz3;
ok_size(szOut, szResult);
szResult = CSize(-50, -75);
szOut = -szOut;
ok_size(szOut, szResult);
RECT rc = { 1, 2, 3, 4 };
CRect rcres = sz1 + &rc;
CRect rcexp(101, 102, 103, 104);
ok_rect(rcexp, rcres);
rcres = sz1 - &rc;
rcexp = CRect(-99, -98, -97, -96);
ok_rect(rcexp, rcres);
}