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Add function argument to specify the threshold algorithm

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This commit is contained in:
Adrian Sieber 2015-10-08 22:00:12 +02:00
parent 90fe184501
commit 9faf0f5a77
1 changed files with 24 additions and 1 deletions
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25
src/Matrix.cc
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@ -1635,7 +1635,7 @@ NAN_METHOD(Matrix::Threshold) {
double maxVal = info[1]->NumberValue(); double maxVal = info[1]->NumberValue();
int typ = cv::THRESH_BINARY; int typ = cv::THRESH_BINARY;
if (info.Length() == 3) { if (info.Length() >= 3) {
Nan::Utf8String typstr(info[2]); Nan::Utf8String typstr(info[2]);
if (strcmp(*typstr, "Binary") == 0) { if (strcmp(*typstr, "Binary") == 0) {
@ -1669,6 +1669,29 @@ NAN_METHOD(Matrix::Threshold) {
} }
} }
if (info.Length() >= 4) {
Nan::Utf8String algorithm(info[3]);
if (strcmp(*algorithm, "Simple") == 0) {
// Uses default
}
else if (strcmp(*algorithm, "Otsu") == 0) {
typ += 8;
}
else {
char *algo = *algorithm;
char text[] = "\" is no supported threshold algorithm. "
"Use \"Simple\" (default) or \"Otsu\".";
char errorMessage[strlen(algo) + strlen(text) + 2];
strcpy(errorMessage, "\"");
strcat(errorMessage, algo);
strcat(errorMessage, text);
Nan::ThrowError(errorMessage);
return;
}
}
Local < Object > img_to_return = Local < Object > img_to_return =
Nan::New(Matrix::constructor)->GetFunction()->NewInstance(); Nan::New(Matrix::constructor)->GetFunction()->NewInstance();
Matrix *img = Nan::ObjectWrap::Unwrap<Matrix>(img_to_return); Matrix *img = Nan::ObjectWrap::Unwrap<Matrix>(img_to_return);