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add bindings for gaussianBlur

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This commit is contained in:
Jean-Tiare LE BIGOT 2013-01-20 01:05:43 +01:00
parent b73ccb67fa
commit 7be98efacf
2 changed files with 43 additions and 7 deletions
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49
src/Matrix.cc
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@ -47,7 +47,8 @@ Matrix::Init(Handle<Object> target) {
NODE_SET_PROTOTYPE_METHOD(constructor, "channels", Channels);
NODE_SET_PROTOTYPE_METHOD(constructor, "convertGrayscale", ConvertGrayscale);
NODE_SET_PROTOTYPE_METHOD(constructor, "convertHSVscale", ConvertHSVscale);
NODE_SET_PROTOTYPE_METHOD(constructor, "convertHSVscale", ConvertHSVscale);
NODE_SET_PROTOTYPE_METHOD(constructor, "gaussianBlur", GaussianBlur);
NODE_SET_PROTOTYPE_METHOD(constructor, "copy", Copy);
NODE_SET_PROTOTYPE_METHOD(constructor, "ptr", Ptr);
NODE_SET_PROTOTYPE_METHOD(constructor, "addWeighted", AddWeighted);
@ -549,16 +550,50 @@ Matrix::ConvertGrayscale(const v8::Arguments& args) {
Handle<Value>
Matrix::ConvertHSVscale(const v8::Arguments& args) {
HandleScope scope;
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
if(self->mat.channels() != 3)
return v8::ThrowException(String::New("Image is no 3-channel"));
cv::Mat hsv;
cv::cvtColor(self->mat, hsv, CV_BGR2HSV);
hsv.copyTo(self->mat);
return scope.Close(v8::Null());
}
Handle<Value>
Matrix::GaussianBlur(const v8::Arguments& args) {
HandleScope scope;
cv::Size ksize;
cv::Mat blurred;
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
if(self->mat.channels() != 3)
return v8::ThrowException(String::New("Image is no 3-channel"));
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
cv::Mat hsv;
if (args.Length() < 1) {
ksize = cv::Size(5, 5);
}
else {
if(!args[0]->IsArray()) {
return ThrowException(Exception::TypeError(String::New(
"'ksize' argument must be a 2 double array")));
}
Local<Object> array = args[0]->ToObject();
// TODO: Length check
Local<Value> x = array->Get(0);
Local<Value> y = array->Get(1);
if(!x->IsNumber() || !y->IsNumber()) {
return ThrowException(Exception::TypeError(String::New(
"'ksize' argument must be a 2 double array")));
}
ksize = cv::Size(x->NumberValue(), y->NumberValue());
}
cv::cvtColor(self->mat, hsv, CV_BGR2HSV);
hsv.copyTo(self->mat);
cv::GaussianBlur(self->mat, blurred, ksize, 0);
blurred.copyTo(self->mat);
return scope.Close(v8::Null());
}

1
src/Matrix.h
View File

@ -43,6 +43,7 @@ class Matrix: public node::ObjectWrap {
JSFUNC(ConvertGrayscale)
JSFUNC(ConvertHSVscale)
JSFUNC(GaussianBlur)
JSFUNC(Copy)
JSFUNC(Ptr)
JSFUNC(AddWeighted)