archive-gh-me/node-opencv
1
0
Fork 0
mirror of https://github.com/peterbraden/node-opencv.git synced 2025-12-08 19:45:55 +00:00
Code Issues Projects Releases Wiki Activity

HoughCircles added

Browse Source
This commit is contained in:
Dmitry Ivanov 2014-10-23 15:50:05 -04:00
parent 4860f875c9
commit 23fc1c04ed
2 changed files with 37 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/Matrix.cc
View File

@ -68,6 +68,7 @@ Matrix::Init(Handle<Object> target) {
NODE_SET_PROTOTYPE_METHOD(ctor, "drawAllContours", DrawAllContours);
NODE_SET_PROTOTYPE_METHOD(ctor, "goodFeaturesToTrack", GoodFeaturesToTrack);
NODE_SET_PROTOTYPE_METHOD(ctor, "houghLinesP", HoughLinesP);
NODE_SET_PROTOTYPE_METHOD(ctor, "houghCircles", HoughCircles);
NODE_SET_PROTOTYPE_METHOD(ctor, "inRange", inRange);
NODE_SET_PROTOTYPE_METHOD(ctor, "adjustROI", AdjustROI);
NODE_SET_PROTOTYPE_METHOD(ctor, "locateROI", LocateROI);
@ -1257,6 +1258,41 @@ NAN_METHOD(Matrix::HoughLinesP) {
}
NAN_METHOD(Matrix::HoughCircles) {
NanScope();
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
double dp = args.Length() < 1 ? 1 : args[0]->NumberValue();
double minDist = args.Length() < 2 ? 1 : args[1]->NumberValue();
double higherThreshold = args.Length() < 3 ? 100 : args[2]->NumberValue();
double accumulatorThreshold = args.Length() < 4 ? 100 : args[3]->NumberValue();
int minRadius = args.Length() < 5 ? 0 : args[4]->Uint32Value();
int maxRadius = args.Length() < 6 ? 0 : args[5]->Uint32Value();
std::vector<cv::Vec3f> circles;
cv::Mat gray;
equalizeHist(self->mat, gray);
cv::HoughCircles(gray, circles, CV_HOUGH_GRADIENT, dp, minDist, higherThreshold, accumulatorThreshold, minRadius, maxRadius);
v8::Local<v8::Array> arr = NanNew<Array>(circles.size());
for (unsigned int i=0; i < circles.size(); i++){
v8::Local<v8::Array> pt = NanNew<Array>(3);
pt->Set(0, NanNew<Number>((double) circles[i][0]));// center x
pt->Set(1, NanNew<Number>((double) circles[i][1]));// center y
pt->Set(2, NanNew<Number>((double) circles[i][2]));// radius
arr->Set(i, pt);
}
NanReturnValue(arr);
}
cv::Scalar setColor(Local<Object> objColor) {
Local<Value> valB = objColor->Get(0);

1
src/Matrix.h
View File

@ -74,6 +74,7 @@ class Matrix: public node::ObjectWrap {
// Feature Detection
JSFUNC(GoodFeaturesToTrack)
JSFUNC(HoughLinesP)
JSFUNC(HoughCircles)
JSFUNC(Crop)