├── .gitignore
├── results
    ├── original.png
    ├── background-removal.png
    └── foreground-removal.png
├── src
    └── it
    │   └── polito
    │       └── elite
    │           └── teaching
    │               └── cv
    │                   ├── application.css
    │                   ├── ImageSegController.java
    │                   ├── ImageSegmentation.java
    │                   ├── ImageSeg.fxml
    │                   └── utils
    │                       └── Utils.java
├── .classpath
├── .project
└── README.md


/.gitignore:
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1 | /bin
2 | 


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/results/original.png:
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https://raw.githubusercontent.com/opencv-java/image-segmentation/HEAD/results/original.png


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/results/background-removal.png:
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https://raw.githubusercontent.com/opencv-java/image-segmentation/HEAD/results/background-removal.png


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/results/foreground-removal.png:
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https://raw.githubusercontent.com/opencv-java/image-segmentation/HEAD/results/foreground-removal.png


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/src/it/polito/elite/teaching/cv/application.css:
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1 | /* JavaFX CSS - Leave this comment until you have at least create one rule which uses -fx-Property */


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/src/it/polito/elite/teaching/cv/ImageSegController.java:
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https://raw.githubusercontent.com/opencv-java/image-segmentation/HEAD/src/it/polito/elite/teaching/cv/ImageSegController.java


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/src/it/polito/elite/teaching/cv/ImageSegmentation.java:
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https://raw.githubusercontent.com/opencv-java/image-segmentation/HEAD/src/it/polito/elite/teaching/cv/ImageSegmentation.java


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/.classpath:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <classpath>
3 | 	<classpathentry kind="src" path="src"/>
4 | 	<classpathentry kind="con" path="org.eclipse.fx.ide.jdt.core.JAVAFX_CONTAINER"/>
5 | 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
6 | 	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/opencv"/>
7 | 	<classpathentry kind="output" path="bin"/>
8 | </classpath>
9 | 


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/.project:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <projectDescription>
 3 | 	<name>Lab6</name>
 4 | 	<comment></comment>
 5 | 	<projects>
 6 | 	</projects>
 7 | 	<buildSpec>
 8 | 		<buildCommand>
 9 | 			<name>org.eclipse.jdt.core.javabuilder</name>
10 | 			<arguments>
11 | 			</arguments>
12 | 		</buildCommand>
13 | 		<buildCommand>
14 | 			<name>org.eclipse.xtext.ui.shared.xtextBuilder</name>
15 | 			<arguments>
16 | 			</arguments>
17 | 		</buildCommand>
18 | 	</buildSpec>
19 | 	<natures>
20 | 		<nature>org.eclipse.xtext.ui.shared.xtextNature</nature>
21 | 		<nature>org.eclipse.jdt.core.javanature</nature>
22 | 	</natures>
23 | </projectDescription>
24 | 


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/README.md:
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 1 | ## Image Segmentation with OpenCV and JavaFX
 2 | 
 3 | [![No Maintenance Intended](http://unmaintained.tech/badge.svg)](http://unmaintained.tech/)
 4 | 
 5 | *Computer Vision course - [Politecnico di Torino](http://www.polito.it)*
 6 | 
 7 | A project, made in Eclipse (Neon), for experimenting with edge detection, erosion and dilatation. It performs image segmentation upon a webcam video stream. Some screenshots of the running project are available in the `results` folder.
 8 | 
 9 | Please, note that the project is an Eclipse project, made for teaching purposes. Before using it, you need to install the OpenCV library (version 3.x) and JavaFX 8 and create a `User Library` named `opencv` that links to the OpenCV jar and native libraries.
10 | 
11 | A guide for getting started with OpenCV and Java is available at [http://opencv-java-tutorials.readthedocs.org/en/latest/index.html](http://opencv-java-tutorials.readthedocs.org/en/latest/index.html).
12 | 


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/src/it/polito/elite/teaching/cv/ImageSeg.fxml:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | 
 3 | <?import java.lang.*?>
 4 | <?import javafx.geometry.*?>
 5 | <?import javafx.scene.control.*?>
 6 | <?import javafx.scene.image.*?>
 7 | <?import javafx.scene.layout.*?>
 8 | <?import javafx.scene.text.*?>
 9 | 
10 | <BorderPane xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="it.polito.elite.teaching.cv.ImageSegController">
11 |   <bottom>
12 |     <HBox alignment="CENTER">
13 |       <padding>
14 |         <Insets bottom="25.0" left="25.0" right="25.0" top="25.0" />
15 |       </padding>
16 |       <Button fx:id="cameraButton" alignment="CENTER" disable="true" onAction="#startCamera" text="Start camera" />
17 |     </HBox>
18 |   </bottom>
19 |   <center>
20 |     <VBox alignment="CENTER">
21 |       <padding>
22 |         <Insets left="10.0" right="10.0" />
23 |       </padding>
24 |       <ImageView fx:id="originalFrame" />
25 |     </VBox>
26 |   </center>
27 |   <top>
28 |     <VBox>
29 |       <HBox alignment="CENTER" spacing="10.0">
30 |         <padding>
31 |           <Insets bottom="10.0" top="10.0" />
32 |         </padding>
33 |         <CheckBox fx:id="canny" onAction="#cannySelected" text="Edge detection" />
34 |         <Label text="Canny Threshold" />
35 |         <Slider fx:id="threshold" disable="true" />
36 |       </HBox>
37 |       <Separator />
38 |       <HBox alignment="CENTER" spacing="10.0">
39 |         <padding>
40 |           <Insets bottom="10.0" top="10.0" />
41 |         </padding>
42 |         <CheckBox fx:id="dilateErode" onAction="#dilateErodeSelected" text="Background removal" />
43 |         <CheckBox fx:id="inverse" disable="true" text="Invert" />
44 |       </HBox>
45 |       <Separator />
46 |     </VBox>
47 |   </top>
48 | </BorderPane>
49 | 


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/src/it/polito/elite/teaching/cv/utils/Utils.java:
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 1 | package it.polito.elite.teaching.cv.utils;
 2 | 
 3 | import java.awt.image.BufferedImage;
 4 | import java.awt.image.DataBufferByte;
 5 | 
 6 | import org.opencv.core.Mat;
 7 | 
 8 | import javafx.application.Platform;
 9 | import javafx.beans.property.ObjectProperty;
10 | import javafx.embed.swing.SwingFXUtils;
11 | import javafx.scene.image.Image;
12 | 
13 | /**
14 |  * Provide general purpose methods for handling OpenCV-JavaFX data conversion.
15 |  * Moreover, expose some "low level" methods for matching few JavaFX behavior.
16 |  *
17 |  * @author <a href="mailto:luigi.derussis@polito.it">Luigi De Russis</a>
18 |  * @author <a href="http://max-z.de">Maximilian Zuleger</a>
19 |  * @version 1.0 (2016-09-17)
20 |  * @since 1.0
21 |  * 
22 |  */
23 | public final class Utils
24 | {
25 | 	/**
26 | 	 * Convert a Mat object (OpenCV) in the corresponding Image for JavaFX
27 | 	 *
28 | 	 * @param frame
29 | 	 *            the {@link Mat} representing the current frame
30 | 	 * @return the {@link Image} to show
31 | 	 */
32 | 	public static Image mat2Image(Mat frame)
33 | 	{
34 | 		try
35 | 		{
36 | 			return SwingFXUtils.toFXImage(matToBufferedImage(frame), null);
37 | 		}
38 | 		catch (Exception e)
39 | 		{
40 | 			System.err.println("Cannot convert the Mat obejct: " + e);
41 | 			return null;
42 | 		}
43 | 	}
44 | 	
45 | 	/**
46 | 	 * Generic method for putting element running on a non-JavaFX thread on the
47 | 	 * JavaFX thread, to properly update the UI
48 | 	 * 
49 | 	 * @param property
50 | 	 *            a {@link ObjectProperty}
51 | 	 * @param value
52 | 	 *            the value to set for the given {@link ObjectProperty}
53 | 	 */
54 | 	public static <T> void onFXThread(final ObjectProperty<T> property, final T value)
55 | 	{
56 | 		Platform.runLater(() -> {
57 | 			property.set(value);
58 | 		});
59 | 	}
60 | 	
61 | 	/**
62 | 	 * Support for the {@link mat2image()} method
63 | 	 * 
64 | 	 * @param original
65 | 	 *            the {@link Mat} object in BGR or grayscale
66 | 	 * @return the corresponding {@link BufferedImage}
67 | 	 */
68 | 	private static BufferedImage matToBufferedImage(Mat original)
69 | 	{
70 | 		// init
71 | 		BufferedImage image = null;
72 | 		int width = original.width(), height = original.height(), channels = original.channels();
73 | 		byte[] sourcePixels = new byte[width * height * channels];
74 | 		original.get(0, 0, sourcePixels);
75 | 		
76 | 		if (original.channels() > 1)
77 | 		{
78 | 			image = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
79 | 		}
80 | 		else
81 | 		{
82 | 			image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
83 | 		}
84 | 		final byte[] targetPixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
85 | 		System.arraycopy(sourcePixels, 0, targetPixels, 0, sourcePixels.length);
86 | 		
87 | 		return image;
88 | 	}
89 | }
90 | 


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