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added getData and normailze

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This commit is contained in:
Thomas Hoffmann 2015-05-15 10:43:33 +02:00
parent 7d52f60645
commit 569a1143cd
2 changed files with 51 additions and 0 deletions
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48
src/Matrix.cc
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@ -28,6 +28,8 @@ Matrix::Init(Handle<Object> target) {
NODE_SET_PROTOTYPE_METHOD(ctor, "get", Get);
NODE_SET_PROTOTYPE_METHOD(ctor, "set", Set);
NODE_SET_PROTOTYPE_METHOD(ctor, "put", Put);
NODE_SET_PROTOTYPE_METHOD(ctor, "normalize", Normalize);
NODE_SET_PROTOTYPE_METHOD(ctor, "getData", GetData);
NODE_SET_PROTOTYPE_METHOD(ctor, "pixel", Pixel);
NODE_SET_PROTOTYPE_METHOD(ctor, "width", Width);
NODE_SET_PROTOTYPE_METHOD(ctor, "height", Height);
@ -287,6 +289,52 @@ NAN_METHOD(Matrix::Put){
NanReturnUndefined();
}
// @author tualo
// getData getting node buffer of image data
NAN_METHOD(Matrix::GetData) {
NanScope();
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
int size = self->mat.rows * self->mat.cols * self->mat.elemSize1();
Local<Object> buf = NanNewBufferHandle(size);
uchar* data = (uchar*) Buffer::Data(buf);
memcpy(data, self->mat.data, size);
v8::Local<v8::Object> globalObj = NanGetCurrentContext()->Global();
v8::Local<v8::Function> bufferConstructor = v8::Local<v8::Function>::Cast(globalObj->Get(NanNew<String>("Buffer")));
v8::Handle<v8::Value> constructorArgs[3] = {buf, NanNew<v8::Integer>((unsigned) size), NanNew<v8::Integer>(0)};
v8::Local<v8::Object> actualBuffer = bufferConstructor->NewInstance(3, constructorArgs);
NanReturnValue(actualBuffer);
}
// @author tualo
// normalize wrapper
NAN_METHOD(Matrix::Normalize) {
NanScope();
if (!args[0]->IsNumber())
NanThrowTypeError("min is required (argument 1)");
if (!args[1]->IsNumber())
NanThrowTypeError("max is required (argument 2)");
int min = args[0]->Uint32Value();
int max = args[1]->Uint32Value();
Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
cv::Mat norm;
cv::normalize(self->mat, norm,min,max, cv::NORM_MINMAX);
norm.copyTo(self->mat);
NanReturnNull();
}
NAN_METHOD(Matrix::Size){
SETUP_FUNCTION(Matrix)

3
src/Matrix.h
View File

@ -22,6 +22,9 @@ class Matrix: public node::ObjectWrap {
JSFUNC(Set)
JSFUNC(Put)
JSFUNC(GetData)
JSFUNC(Normalize)
JSFUNC(Row)
JSFUNC(PixelRow)
JSFUNC(Col)