initial commit

.classpath

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
+	<classpathentry kind="con" path="org.eclipse.fx.ide.jdt.core.JAVAFX_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/opencv2"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.gitignore

@@ -0,0 +1 @@
+/bin

.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Lab7</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.xtext.ui.shared.xtextBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.xtext.ui.shared.xtextNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.7
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.7

README.md

@@ -0,0 +1,7 @@
+## Object Recognition with OpenCV and JavaFX
+
+*Computer Vision course - [Politecnico di Torino](http://www.polito.it) - academic year 2014-2015*
+
+A project, made in Eclipse (Luna), for identify and track one or more tennis balls. It performs the detection of the tennis balls upon a webcam video stream by using the color range of the balls, erosion and dilation, and the `findContours` method. Some screenshots of the running project are available in the `screenshots` folder.
+
+Please, note that the project is an Eclipse project, made for teaching purposes. Before using it, you need to install the OpenCV library (version 2.4.9) and JavaFX (version 2 or superior) and create a `User Library` named `opencv2` that links to the OpenCV jar and native libraries.

build.fxbuild

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="ASCII"?>
+<anttasks:AntTask xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:anttasks="http://org.eclipse.fx.ide.jdt/1.0" buildDirectory="${project}/build">
+  <deploy>
+    <application name="Lab6"/>
+    <info/>
+  </deploy>
+  <signjar/>
+</anttasks:AntTask>

src/it/polito/teaching/cv/Lab7.java

@@ -0,0 +1,57 @@
+package it.polito.teaching.cv;
+
+import org.opencv.core.Core;
+
+import javafx.application.Application;
+import javafx.stage.Stage;
+import javafx.scene.Scene;
+import javafx.scene.layout.BorderPane;
+import javafx.fxml.FXMLLoader;
+
+public class Lab7 extends Application
+{
+	/**
+	 * The main class for a JavaFX application. It creates and handles the main
+	 * window with its resources (style, graphics, etc.).
+	 * 
+	 * This application looks for any tennis ball in the camera video stream and
+	 * try to select them according to their HSV values. Found tennis balls are
+	 * framed with a blue line.
+	 * 
+	 * @author <a href="mailto:[email protected]">Luigi De Russis</a>
+	 * @since 2015-01-13
+	 * 
+	 */
+	@Override
+	public void start(Stage primaryStage)
+	{
+		try
+		{
+			// load the FXML resource
+			BorderPane root = (BorderPane) FXMLLoader.load(getClass().getResource("ObjRecognition.fxml"));
+			// set a whitesmoke background
+			root.setStyle("-fx-background-color: whitesmoke;");
+			// create and style a scene
+			Scene scene = new Scene(root, 800, 600);
+			scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
+			// create the stage with the given title and the previously created
+			// scene
+			primaryStage.setTitle("Lab7");
+			primaryStage.setScene(scene);
+			// show the GUI
+			primaryStage.show();
+		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+		}
+	}
+
+	public static void main(String[] args)
+	{
+		// load the native OpenCV library
+		System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
+
+		launch(args);
+	}
+}

src/it/polito/teaching/cv/ObjRecognition.fxml

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.*?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.layout.*?>
+<?import javafx.scene.image.*?>
+<?import javafx.scene.text.*?>
+
+<BorderPane xmlns:fx="http://javafx.com/fxml" fx:controller="it.polito.teaching.cv.ObjRecognitionController">
+	<right>
+		<VBox alignment="CENTER" spacing="10">
+			<padding>
+				<Insets right="10" left="10" />
+			</padding>
+			<Label text="Hue Start" />
+			<Slider fx:id="hueStart" min="0" max="180" value="20" blockIncrement="1" />
+			<Label text="Hue Stop" />
+			<Slider fx:id="hueStop" min="0" max="180" value="50" blockIncrement="1" />
+			<Label text="Saturation Start" />
+			<Slider fx:id="saturationStart" min="0" max="255" value="60" blockIncrement="1" />
+			<Label text="Saturation Stop" />
+			<Slider fx:id="saturationStop" min="0" max="255" value="200" blockIncrement="1" />
+			<Label text="Value Start" />
+			<Slider fx:id="valueStart" min="0" max="255" value="50" blockIncrement="1" />
+			<Label text="Value Stop" />
+			<Slider fx:id="valueStop" min="0" max="255" value="255" blockIncrement="1" />
+		</VBox>
+	</right>
+	<center>
+		<HBox alignment="CENTER" spacing="5">
+			<padding>
+				<Insets right="10" left="10" />
+			</padding>
+			<ImageView fx:id="originalFrame" />
+			<VBox alignment="CENTER" spacing="5">
+				<ImageView fx:id="maskImage" />
+				<ImageView fx:id="morphImage" />
+			</VBox>
+		</HBox>
+	</center>
+	<bottom>
+		<VBox alignment="CENTER" spacing="15">
+			<padding>
+				<Insets top="25" right="25" bottom="25" left="25" />
+			</padding>
+			<Button fx:id="cameraButton" alignment="center" text="Start camera" onAction="#startCamera" />
+			<Separator />
+			<Label fx:id="hsvCurrentValues" />
+		</VBox>
+	</bottom>
+</BorderPane>