Feature/defer net close

cmd/caffe-classifier/main.go

@@ -77,11 +77,11 @@ func main() {
 
 	// open DNN classifier
 	net := gocv.ReadNet(model, config)
+	defer net.Close()
 	if net.Empty() {
 		fmt.Printf("Error reading network model from : %v %v\n", model, config)
 		return
 	}
-	defer net.Close()
 	net.SetPreferableBackend(gocv.NetBackendType(backend))
 	net.SetPreferableTarget(gocv.NetTargetType(target))
 

cmd/dnn-detection/main.go

@@ -74,11 +74,11 @@ func main() {
 
 	// open DNN object tracking model
 	net := gocv.ReadNet(model, config)
+	defer net.Close()
 	if net.Empty() {
 		fmt.Printf("Error reading network model from : %v %v\n", model, config)
 		return
 	}
-	defer net.Close()
 	net.SetPreferableBackend(gocv.NetBackendType(backend))
 	net.SetPreferableTarget(gocv.NetTargetType(target))
 

cmd/dnn-pose-detection/main.go

@@ -76,11 +76,11 @@ func main() {
 	// open OpenPose model
 	n := gocv.ReadNet(model, proto)
 	net = &n
+	defer net.Close()
 	if net.Empty() {
 		fmt.Printf("Error reading network model from : %v %v\n", model, proto)
 		return
 	}
-	defer net.Close()
 	net.SetPreferableBackend(gocv.NetBackendType(backend))
 	net.SetPreferableTarget(gocv.NetTargetType(target))
 

cmd/dnn-style-transfer/main.go

@@ -59,11 +59,11 @@ func main() {
 
 	// open DNN style transfer model
 	net := gocv.ReadNet(model, "")
+	defer net.Close()
 	if net.Empty() {
 		fmt.Printf("Error reading network model from : %v\n", model)
 		return
 	}
-	defer net.Close()
 	net.SetPreferableBackend(gocv.NetBackendType(backend))
 	net.SetPreferableTarget(gocv.NetTargetType(target))
 

cmd/ssd-facedetect/main.go

@@ -67,11 +67,11 @@ func main() {
 
 	// open DNN classifier
 	net := gocv.ReadNetFromCaffe(proto, model)
+	defer net.Close()
 	if net.Empty() {
 		fmt.Printf("Error reading network model from : %v %v\n", proto, model)
 		return
 	}
-	defer net.Close()
 
 	green := color.RGBA{0, 255, 0, 0}
 	fmt.Printf("Start reading device: %v\n", deviceID)

cmd/tf-classifier/main.go

@@ -70,11 +70,11 @@ func main() {
 
 	// open DNN classifier
 	net := gocv.ReadNet(model, "")
+	defer net.Close()
 	if net.Empty() {
 		fmt.Printf("Error reading network model : %v\n", model)
 		return
 	}
-	defer net.Close()
 	net.SetPreferableBackend(gocv.NetBackendType(backend))
 	net.SetPreferableTarget(gocv.NetTargetType(target))