Constructors for other algorithms

smoke/smoketest.js

@@ -8,55 +8,18 @@ for (var i = 1; i< 41; i++){
   }
 }
 
-var facerec = new cv.FaceRecognizer(); 
+cv.readImage("/Users/peterbraden/Downloads/orl_faces/s6/10.pgm", function(e, im){
+
+  var facerec = cv.FaceRecognizer.createFisherFaceRecognizer(); 
   facerec.train(trainingData);
 
-console.log(facerec.predictSync('/Users/peterbraden/Downloads/orl_faces/s6/10.pgm'));
+  console.log(facerec.predictSync(im));
 
-
-/*
-var win = new cv.NamedWindow("foo");
-cv.readImage('./examples/stuff.png', function(e, im){
-  im.pyrDown();
-  win.show(im);
-  console.log(win.blockingWaitKey(0), "!!")
-  win.destroy();
-
-})
-*/
-
-
-/*
-new cv.VideoCapture(0).read(function(mat){
-
-  mat.resize(200,100)
-  mat.save('./out.jpg')
-
-  mat.detectObject("./data/haarcascade_frontalface_alt.xml", {min : [30,30]}, function(err, faces){  
-    for (var i=0;i<faces.length; i++){
-      var x = faces[i]
-      mat.ellipse(x.x + x.width/2, x.y + x.height/2, x.width/2, x.height/2);
-    }
-    console.log(faces.length ? (faces.length + " faces found") : "No faces")
-    mat.save('./out.jpg');   
-    
-  })
+  var x = new cv.NamedWindow("out")
+  x.show(im);
+  x.blockingWaitKey();
+  x.destroy()
 })
 
 
 
-cv.readImage("./examples/stuff.png", function(err, im){
-  var i2 = im.copy()
-  i2.convertGrayscale()
-  i2.canny(5, 300)
-  var features = i2.houghLinesP();
-  for (var i=0;i<features.length; i++){
-      var x = features[i]
-      im.line([x[0], x[1]], [x[2], x[3]]);
-      im.ellipse(x[0], x[1]);
-      im.ellipse(x[2], x[3]);
-    }
-  console.log(features)
-    im.save('./out.jpg');   
-});
-*/

src/FaceRecognizer.cc

@@ -35,6 +35,10 @@ FaceRecognizerWrap::Init(Handle<Object> target) {
       constructor->InstanceTemplate()->SetInternalFieldCount(1);
       constructor->SetClassName(String::NewSymbol("FaceRecognizer"));
 
+    NODE_SET_METHOD(constructor, "createLBPHFaceRecognizer", CreateLBPH);
+    NODE_SET_METHOD(constructor, "createEigenFaceRecognizer", CreateEigen);
+    NODE_SET_METHOD(constructor, "createFisherFaceRecognizer", CreateFisher);
+
     NODE_SET_PROTOTYPE_METHOD(constructor, "train", Train);
     NODE_SET_PROTOTYPE_METHOD(constructor, "predictSync", PredictSync);
 
@@ -57,6 +61,76 @@ FaceRecognizerWrap::New(const Arguments &args) {
   return args.This();
 }
 
+Handle<Value>
+FaceRecognizerWrap::CreateLBPH(const Arguments &args) {
+  HandleScope scope;
+
+  int radius = 1;
+  int neighbors = 8;
+  int grid_x = 8;
+  int grid_y = 8;
+  double threshold = 80;
+
+  INT_FROM_ARGS(radius, 0)
+  INT_FROM_ARGS(neighbors, 1)
+  INT_FROM_ARGS(grid_x, 2)
+  INT_FROM_ARGS(grid_y, 3)
+  DOUBLE_FROM_ARGS(threshold, 4)
+
+  Local<Object> n = FaceRecognizerWrap::constructor->GetFunction()->NewInstance();
+
+  cv::Ptr<cv::FaceRecognizer> f = cv::createLBPHFaceRecognizer(
+      radius, neighbors, grid_x, grid_y, threshold
+  );
+  FaceRecognizerWrap *pt = new FaceRecognizerWrap(f);
+
+  pt->Wrap(n);
+  return n;
+}
+
+Handle<Value>
+FaceRecognizerWrap::CreateEigen(const Arguments &args) {
+  HandleScope scope;
+
+  int components = 0;
+  double threshold = DBL_MAX;
+
+  INT_FROM_ARGS(components, 0)
+  DOUBLE_FROM_ARGS(threshold, 1)
+
+  Local<Object> n = FaceRecognizerWrap::constructor->GetFunction()->NewInstance();
+
+  cv::Ptr<cv::FaceRecognizer> f = cv::createEigenFaceRecognizer(
+      components, threshold
+  );
+  FaceRecognizerWrap *pt = new FaceRecognizerWrap(f);
+
+  pt->Wrap(n);
+  return n;
+}
+
+Handle<Value>
+FaceRecognizerWrap::CreateFisher(const Arguments &args) {
+  HandleScope scope;
+
+  int components = 0;
+  double threshold = DBL_MAX;
+
+  INT_FROM_ARGS(components, 0)
+  DOUBLE_FROM_ARGS(threshold, 1)
+
+  Local<Object> n = FaceRecognizerWrap::constructor->GetFunction()->NewInstance();
+
+  cv::Ptr<cv::FaceRecognizer> f = cv::createFisherFaceRecognizer(
+      components, threshold
+  );
+  FaceRecognizerWrap *pt = new FaceRecognizerWrap(f);
+
+  pt->Wrap(n);
+  return n;
+}
+
+
 FaceRecognizerWrap::FaceRecognizerWrap(cv::Ptr<cv::FaceRecognizer> f){
   rec = f; 
 }

src/FaceRecognizer.h

@@ -14,6 +14,10 @@ class FaceRecognizerWrap: public node::ObjectWrap {
 
     FaceRecognizerWrap(cv::Ptr<cv::FaceRecognizer> f);
 
+    JSFUNC(CreateLBPH)
+    JSFUNC(CreateEigen)
+    JSFUNC(CreateFisher)
+    
     JSFUNC(Train)
     JSFUNC(Update)
     

src/OpenCV.h

@@ -33,6 +33,17 @@ using namespace node;
 #define JSTHROW(ERR) \
   return v8::ThrowException(v8::Exception::Error(v8::String::New(ERR)));
 
+
+#define INT_FROM_ARGS(NAME, IND) \
+  if (args[IND]->IsInt32()){ \
+    NAME = args[IND]->Uint32Value(); \
+  }
+
+#define DOUBLE_FROM_ARGS(NAME, IND) \
+  if (args[IND]->IsInt32()){ \
+    NAME = args[IND]->NumberValue(); \
+  }
+
 class OpenCV: public node::ObjectWrap{
   public:
     static void Init(Handle<Object> target);