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Merge pull request #451 from thefotios/addCopyMakeBorder

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Added copyMakeBorder function
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Peter Braden 2019-03-20 17:13:15 +01:00 committed by GitHub
commit 8739a9ac2a
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2 changed files with 57 additions and 0 deletions
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56
src/Matrix.cc
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@ -20,6 +20,7 @@ void Matrix::Init(Local<Object> target) {
ctor->SetClassName(Nan::New("Matrix").ToLocalChecked());
// Prototype
Nan::SetPrototypeMethod(ctor, "copyMakeBorder", CopyMakeBorder);
Nan::SetPrototypeMethod(ctor, "row", Row);
Nan::SetPrototypeMethod(ctor, "col", Col);
Nan::SetPrototypeMethod(ctor, "pixelRow", PixelRow);
@ -2989,6 +2990,61 @@ NAN_METHOD(Matrix::Mean) {
info.GetReturnValue().Set(arr);
}
// http://docs.opencv.org/2.4/modules/imgproc/doc/filtering.html#copymakeborder
NAN_METHOD(Matrix::CopyMakeBorder) {
SETUP_FUNCTION(Matrix)
double t = info[0]->NumberValue();
double b = info[1]->NumberValue();
double l = info[2]->NumberValue();
double r = info[3]->NumberValue();
int borderType = cv::BORDER_DEFAULT;
cv::Scalar value;
if (info.Length() > 4) {
borderType = info[4]->IntegerValue();
value = cv::Scalar(0, 0, 0, 0);
if (borderType == cv::BORDER_CONSTANT) {
if (!info[5]->IsArray()) {
Nan::ThrowTypeError("The argument must be an array");
}
v8::Local<v8::Array> objColor = v8::Local<v8::Array>::Cast(info[5]);
unsigned int length = objColor->Length();
Local<Value> valB = objColor->Get(0);
Local<Value> valG = objColor->Get(1);
Local<Value> valR = objColor->Get(2);
if (length == 3) {
value = cv::Scalar(
valB->IntegerValue(),
valG->IntegerValue(),
valR->IntegerValue()
);
} else if (length == 4) {
Local<Value> valA = objColor->Get(3);
value = cv::Scalar(
valB->IntegerValue(),
valG->IntegerValue(),
valR->IntegerValue(),
valA->IntegerValue()
);
} else {
Nan::ThrowError("Fill must include 3 or 4 colors");
}
}
}
cv::Mat padded;
cv::copyMakeBorder(self->mat, padded, t, b, l, r, borderType, value);
~self->mat;
self->mat = padded;
return;
}
NAN_METHOD(Matrix::Shift) {
SETUP_FUNCTION(Matrix)

1
src/Matrix.h
View File

@ -34,6 +34,7 @@ public:
JSFUNC(Normalize)
JSFUNC(Brightness)
JSFUNC(Norm)
JSFUNC(CopyMakeBorder)
JSFUNC(Row)
JSFUNC(PixelRow)