Merge pull request #273 from justadudewhohacks/#251

added copyMakeBorder

Author: justadudewhohacks

cc/core/Mat.cc

@@ -89,6 +89,8 @@ NAN_MODULE_INIT(Mat::Init) {
   Nan::SetPrototypeMethod(ctor, "meanAsync", MeanAsync);
   Nan::SetPrototypeMethod(ctor, "meanStdDev", MeanStdDev);
   Nan::SetPrototypeMethod(ctor, "meanStdDevAsync", MeanStdDevAsync);
+  Nan::SetPrototypeMethod(ctor, "copyMakeBorder", CopyMakeBorder);
+  Nan::SetPrototypeMethod(ctor, "copyMakeBorderAsync", CopyMakeBorderAsync);
 #if CV_VERSION_MINOR > 1
   Nan::SetPrototypeMethod(ctor, "rotate", Rotate);
   Nan::SetPrototypeMethod(ctor, "rotateAsync", RotateAsync);
@@ -805,6 +807,22 @@ NAN_METHOD(Mat::MeanStdDevAsync) {
   );
 }
 
+NAN_METHOD(Mat::CopyMakeBorder) {
+	FF::SyncBinding(
+		std::make_shared<MatBindings::CopyMakeBorderWorker>(Mat::Converter::unwrap(info.This())),
+		"Mat::CopyMakeBorder",
+		info
+	);
+}
+
+NAN_METHOD(Mat::CopyMakeBorderAsync) {
+	FF::AsyncBinding(
+		std::make_shared<MatBindings::CopyMakeBorderWorker>(Mat::Converter::unwrap(info.This())),
+		"Mat::CopyMakeBorderAsync",
+		info
+	);
+}
+
 #if CV_VERSION_MINOR > 1
 NAN_METHOD(Mat::Rotate) {
   FF::SyncBinding(

cc/core/Mat.h

@@ -120,6 +120,8 @@ class Mat : public Nan::ObjectWrap {
   static NAN_METHOD(MeanAsync);
   static NAN_METHOD(MeanStdDev);
   static NAN_METHOD(MeanStdDevAsync);
+  static NAN_METHOD(CopyMakeBorder);
+  static NAN_METHOD(CopyMakeBorderAsync);
 #if CV_VERSION_MINOR > 1
   static NAN_METHOD(Rotate);
   static NAN_METHOD(RotateAsync);

cc/core/MatBindings.h

@@ -759,6 +759,76 @@ namespace MatBindings {
     }
   };
 
+  struct CopyMakeBorderWorker : public CatchCvExceptionWorker {
+  public:
+	  cv::Mat self;
+	  CopyMakeBorderWorker(cv::Mat self) {
+		  this->self = self;
+	  }
+
+	  cv::Mat result;
+	  int top, bottom, left, right;
+	  int borderType = cv::BORDER_CONSTANT;
+	  double v1 = 0;
+	  cv::Vec2d v2 = 0;
+	  cv::Vec3d v3 = 0;
+	  cv::Vec4d v4 = 0;
+
+	  std::string executeCatchCvExceptionWorker() {
+		  if (self.channels() == 1)
+			cv::copyMakeBorder(self, result, top, bottom, left, right, borderType, v1);
+		  else if (self.channels() == 2)
+			  cv::copyMakeBorder(self, result, top, bottom, left, right, borderType, v2);
+		  else if (self.channels() == 3)
+			  cv::copyMakeBorder(self, result, top, bottom, left, right, borderType, v3);
+		  else if (self.channels() == 4)
+			  cv::copyMakeBorder(self, result, top, bottom, left, right, borderType, v4);
+		  return "";
+	  }
+
+	  v8::Local<v8::Value> getReturnValue() {
+		  return Mat::Converter::wrap(result);
+	  }
+
+	  bool unwrapRequiredArgs(Nan::NAN_METHOD_ARGS_TYPE info) {
+		  return (
+			  IntConverter::arg(0, &top, info) ||
+			  IntConverter::arg(1, &bottom, info) ||
+			  IntConverter::arg(2, &left, info) ||
+			  IntConverter::arg(3, &right, info) 
+			);
+	  }
+
+	  bool unwrapOptionalArgs(Nan::NAN_METHOD_ARGS_TYPE info) {
+		  return (
+			  IntConverter::optArg(4, &borderType, info) ||
+			  (
+				  self.channels() == 1 && DoubleConverter::optArg(5, &v1, info) ||
+				  self.channels() == 2 && Vec2::Converter::optArg(5, &v2, info) ||
+				  self.channels() == 3 && Vec3::Converter::optArg(5, &v3, info) ||
+				  self.channels() == 4 && Vec4::Converter::optArg(5, &v4, info)
+				)
+			);
+	  }
+
+	  bool hasOptArgsObject(Nan::NAN_METHOD_ARGS_TYPE info) {
+		  return FF_ARG_IS_OBJECT(4);
+	  }
+
+	  bool unwrapOptionalArgsFromOpts(Nan::NAN_METHOD_ARGS_TYPE info) {
+		  v8::Local<v8::Object> opts = info[4]->ToObject();
+		  return (
+			  IntConverter::optProp(&borderType, "borderType", opts) ||
+			  (
+				self.channels() == 1 && DoubleConverter::optProp(&v1, "value", opts) ||
+				self.channels() == 2 && Vec2::Converter::optProp(&v2, "value", opts) ||
+				self.channels() == 3 && Vec3::Converter::optProp(&v3, "value", opts) ||
+				self.channels() == 4 && Vec4::Converter::optProp(&v4, "value", opts)
+				)
+			);
+	  }
+  };
+
 #if CV_VERSION_MINOR > 1
   struct RotateWorker : public OpWithCodeWorker {
   public:

lib/typings/Mat.d.ts

@@ -79,6 +79,8 @@ export class Mat {
   convertToAsync(type: number, alpha?: number, beta?: number): Promise<Mat>;
   copy(mask?: Mat): Mat;
   copyAsync(mask?: Mat): Promise<Mat>;
+  copyMakeBorder(top: number, bottom: number, left: number, right: number, borderType?: number, value?: number | Vec2 | Vec3 | Vec4): Mat;
+  copyMakeBorderAsync(top: number, bottom: number, left: number, right: number, borderType?: number, value?: number | Vec2 | Vec3 | Vec4): Promise<Mat>;
   copyTo(dst: Mat, mask?: Mat): Mat;
   copyToAsync(dst: Mat, mask?: Mat): Promise<Mat>;
   cornerEigenValsAndVecs(blockSize: number, ksize?: number, borderType?: number): Mat;

test/tests/core/Mat/Mat.test.js

@@ -908,5 +908,53 @@ describe('Mat', () => {
       }
     });
   });
+
+  describe('copyMakeBorder', () => {
+    const top = 1;
+    const bottom = 1;
+    const left = 1;
+    const right = 1;
+
+    const getRequiredArgs = () => ([
+      top,
+      bottom,
+      left,
+      right
+    ]);
+
+    const borderType = cv.BORDER_CONSTANT;
+
+    const makeExpectOutput = (type, value) => (res, _, args) => {
+      expect(res).to.be.instanceOf(cv.Mat);
+      assertMetaData(res)(22, 22, type);
+      if (args[5] === 255 || (args[4] && args[4].value)) {
+        const upperLeft = res.at(0, 0);
+        if (typeof upperLeft === 'object') {
+          ['x', 'y', 'z', 'w'].forEach(k => expect(upperLeft[k]).to.eq(value[k]));
+        } else {
+          expect(upperLeft).to.equal(value);
+        }
+      }
+    };
+
+    const makeTest = (type, defaultValue, value) => () => {
+      generateAPITests({
+        getDut: () => new cv.Mat(20, 20, type, defaultValue),
+        methodName: 'copyMakeBorder',
+        methodNameSpace: 'Mat',
+        getRequiredArgs,
+        getOptionalArgsMap: () => ([
+          ['borderType', borderType],
+          ['value', value]
+        ]),
+        expectOutput: makeExpectOutput(type, value)
+      });
+    };
+
+    describe('C1', makeTest(cv.CV_8U, 0, 255));
+    describe('C2', makeTest(cv.CV_8UC2, [0, 0], new cv.Vec(255, 200)));
+    describe('C3', makeTest(cv.CV_8UC3, [0, 0, 0], new cv.Vec(255, 200, 100)));
+    describe('C4', makeTest(cv.CV_8UC4, [0, 0, 0, 0], new cv.Vec(255, 200, 100, 50)));
+  });
 });