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Merge pull request #499 from schmidmt/master

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Added support for single channel pixelRow and pixelColumn
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Peter Braden 2017-05-15 09:35:24 +02:00 committed by GitHub
commit e40d1669c2
1 changed files with 33 additions and 15 deletions
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46
src/Matrix.cc
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@ -565,14 +565,23 @@ NAN_METHOD(Matrix::PixelRow) {
int width = self->mat.size().width;
int y = info[0]->IntegerValue();
v8::Local < v8::Array > arr = Nan::New<Array>(width * 3);
v8::Local < v8::Array > arr;
for (int x = 0; x < width; x++) {
cv::Vec3b pixel = self->mat.at<cv::Vec3b>(y, x);
int offset = x * 3;
arr->Set(offset, Nan::New<Number>((double) pixel.val[0]));
arr->Set(offset + 1, Nan::New<Number>((double) pixel.val[1]));
arr->Set(offset + 2, Nan::New<Number>((double) pixel.val[2]));
if (self->mat.channels() == 3) {
arr = Nan::New<Array>(width * 3);
for (int x = 0; x < width; x++) {
cv::Vec3b pixel = self->mat.at<cv::Vec3b>(y, x);
int offset = x * 3;
arr->Set(offset, Nan::New<Number>((double) pixel.val[0]));
arr->Set(offset + 1, Nan::New<Number>((double) pixel.val[1]));
arr->Set(offset + 2, Nan::New<Number>((double) pixel.val[2]));
}
} else {
arr = Nan::New<Array>(width);
for (int x = 0; x < width; x++) {
int pixel = (int)self->mat.at<unsigned char>(y, x);
arr->Set(x, Nan::New<Number>(pixel));
}
}
info.GetReturnValue().Set(arr);
@ -597,14 +606,23 @@ NAN_METHOD(Matrix::PixelCol) {
int height = self->mat.size().height;
int x = info[0]->IntegerValue();
v8::Local < v8::Array > arr = Nan::New<Array>(height * 3);
v8::Local < v8::Array > arr;
for (int y = 0; y < height; y++) {
cv::Vec3b pixel = self->mat.at<cv::Vec3b>(y, x);
int offset = y * 3;
arr->Set(offset, Nan::New<Number>((double) pixel.val[0]));
arr->Set(offset + 1, Nan::New<Number>((double) pixel.val[1]));
arr->Set(offset + 2, Nan::New<Number>((double) pixel.val[2]));
if (self->mat.channels() == 3) {
arr = Nan::New<Array>(height * 3);
for (int y = 0; y < height; y++) {
cv::Vec3b pixel = self->mat.at<cv::Vec3b>(y, x);
int offset = y * 3;
arr->Set(offset, Nan::New<Number>((double) pixel.val[0]));
arr->Set(offset + 1, Nan::New<Number>((double) pixel.val[1]));
arr->Set(offset + 2, Nan::New<Number>((double) pixel.val[2]));
}
} else {
arr = Nan::New<Array>(height);
for (int y = 0; y < height; y++) {
int pixel = (int)self->mat.at<unsigned char>(y, x);
arr->Set(y, Nan::New<Number>(pixel));
}
}
info.GetReturnValue().Set(arr);
}