image save()

smoketest.js

@@ -2,4 +2,6 @@ var opencv = require('./lib/opencv')
   , assert = require('assert')
 
 console.log(opencv.version)
-console.log(new opencv.Image("./examples/mona.jpg").width, "!!")
+
+
+console.log(new opencv.Image('./examples/mona.jpg').save('t1.jpg'))

src/Image.cc

@@ -18,12 +18,19 @@ Image::Init(Handle<Object> target) {
     proto->SetAccessor(String::NewSymbol("width"), GetWidth);
     proto->SetAccessor(String::NewSymbol("height"), GetHeight);
     
+    NODE_SET_PROTOTYPE_METHOD(constructor, "save", Save);
+
+
     /*proto->SetAccessor(String::NewSymbol("source"), GetSource, SetSource);
     proto->SetAccessor(String::NewSymbol("complete"), GetComplete);
 
     proto->SetAccessor(String::NewSymbol("onload"), GetOnload, SetOnload);
     proto->SetAccessor(String::NewSymbol("onerror"), GetOnerror, SetOnerror);*/
     target->Set(String::NewSymbol("Image"), constructor->GetFunction());
+
+
+    
+
 };
 
 Handle<Value>
@@ -63,12 +70,28 @@ Image::Image(v8::Value* fileName): ObjectWrap() {
 Handle<Value>
 Image::GetWidth(Local<String>, const AccessorInfo &info) {
   HandleScope scope;
-  return scope.Close(Number::New(5));
+  Image *img = ObjectWrap::Unwrap<Image>(info.This());
+  return scope.Close(Number::New(img->image.size().width));
 }   
 
 Handle<Value>
 Image::GetHeight(Local<String>, const AccessorInfo &info) {
   HandleScope scope;
-  return scope.Close(Number::New(5));
+  Image *img = ObjectWrap::Unwrap<Image>(info.This());
+  return scope.Close(Number::New(img->image.size().height));
 }   
 
+
+Handle<Value>
+Image::Save(const v8::Arguments& args){
+  HandleScope scope;
+
+  if (!args[0]->IsString())
+    return ThrowException(Exception::TypeError(String::New("filename required")));
+ 
+  Image *self = ObjectWrap::Unwrap<Image>(args.This());
+  String::AsciiValue filename(args[0]);
+  int res = cv::imwrite(*filename, self->image);
+  return scope.Close(Number::New(res));
+}
+

src/Image.h

@@ -15,4 +15,7 @@ class Image: public node::ObjectWrap {
 
       static Handle<Value> GetWidth(Local<String> prop, const AccessorInfo &info);
       static Handle<Value> GetHeight(Local<String> prop, const AccessorInfo &info);
+
+      static Handle<Value> Save(const v8::Arguments&);
+
 };

src/Point.cc

@@ -62,7 +62,7 @@ Point::Dot(const v8::Arguments& args){
   HandleScope scope;
   Point *p1 = ObjectWrap::Unwrap<Point>(args.This());
   Point *p2 = ObjectWrap::Unwrap<Point>(args[0]->ToObject());
-  
+
   // Since V 2.3 Native Dot no longer supported
   return scope.Close(Number::New(p1->point.x * p2->point.x + p1->point.y * p2->point.y));
 }

test/smoke.js

@@ -60,7 +60,16 @@ vows.describe('Smoke Tests OpenCV').addBatch({
 
 
   , "Image" : {
+    topic : require('../lib/opencv')
+
+    , "constructor": function(cv){
+      assert.ok(new cv.Image("./examples/mona.jpg"))
+    }
     
+    , ".width / .height" : function(cv){
+      assert.equal(new cv.Image("./examples/mona.jpg").width, 500)
+      assert.equal(new cv.Image("./examples/mona.jpg").height, 756)
+    }
 
   }
 }).run();