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implemented copyTo() func

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Paul 2013-08-22 05:06:58 +04:00
parent 276e42bffc
commit 3105e14f25
2 changed files with 35 additions and 0 deletions
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32
src/Matrix.cc
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@ -47,6 +47,7 @@ Matrix::Init(Handle<Object> target) {
NODE_SET_PROTOTYPE_METHOD(constructor, "saveAsync", SaveAsync); NODE_SET_PROTOTYPE_METHOD(constructor, "saveAsync", SaveAsync);
NODE_SET_PROTOTYPE_METHOD(constructor, "resize", Resize); NODE_SET_PROTOTYPE_METHOD(constructor, "resize", Resize);
NODE_SET_PROTOTYPE_METHOD(constructor, "rotate", Rotate); NODE_SET_PROTOTYPE_METHOD(constructor, "rotate", Rotate);
NODE_SET_PROTOTYPE_METHOD(constructor, "copyTo", CopyTo);
NODE_SET_PROTOTYPE_METHOD(constructor, "pyrDown", PyrDown); NODE_SET_PROTOTYPE_METHOD(constructor, "pyrDown", PyrDown);
NODE_SET_PROTOTYPE_METHOD(constructor, "pyrUp", PyrUp); NODE_SET_PROTOTYPE_METHOD(constructor, "pyrUp", PyrUp);
NODE_SET_PROTOTYPE_METHOD(constructor, "channels", Channels); NODE_SET_PROTOTYPE_METHOD(constructor, "channels", Channels);
@ -1175,3 +1176,34 @@ Matrix::MeanStdDev(const v8::Arguments& args) {
data->Set(String::NewSymbol("stddev"), stddev); data->Set(String::NewSymbol("stddev"), stddev);
return scope.Close(data); return scope.Close(data);
} }
// @author SergeMv
// Copies our (small) image into a ROI of another (big) image
// @param Object another image (destination)
// @param Number Destination x (where our image is to be copied)
// @param Number Destination y (where our image is to be copied)
// Example: smallImg.copyTo(bigImg, 50, 50);
// Note, x,y and width and height of our image must be so that
// our.width + x <= destination.width (and the same for y and height)
// both x and y must be >= 0
Handle<Value>
Matrix::CopyTo(const v8::Arguments& args){
HandleScope scope;
Matrix * self = ObjectWrap::Unwrap<Matrix>(args.This());
int width = self->mat.size().width;
int height = self->mat.size().height;
// param 0 - destination image:
Matrix *dest = ObjectWrap::Unwrap<Matrix>(args[0]->ToObject());
// param 1 - x coord of the destination
int x = args[1]->IntegerValue();
// param 2 - y coord of the destination
int y = args[2]->IntegerValue();
cv::Mat dstROI = cv::Mat(dest->mat, cv::Rect(x, y, width, height));
self->mat.copyTo(dstROI);
return scope.Close(Undefined());
}

3
src/Matrix.h
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@ -77,6 +77,9 @@ class Matrix: public node::ObjectWrap {
JSFUNC(Threshold) JSFUNC(Threshold)
JSFUNC(MeanStdDev) JSFUNC(MeanStdDev)
JSFUNC(CopyTo)
/* /*
static Handle<Value> Val(const Arguments& args); static Handle<Value> Val(const Arguments& args);
static Handle<Value> RowRange(const Arguments& args); static Handle<Value> RowRange(const Arguments& args);