Java中的图像分割库 [英] Image Segmentation library in Java

问题描述

我正在开发一个项目，其中包括通过计算机阅读图表的程序。
我需要进行图像分割，以便识别图像输入中的形状及其位置。我的教授说我可以使用任何公共图像分割库来做到这一点。
有没有可以达到此目的的好图像分割库？

非常感谢

解决方案

例如，在JAVA中，这些工具提供了许多图像分割算法：

ImageJ

侵蚀后：

结果：

< a href =https://i.stack.imgur.com/ZE 0dc.pngrel =nofollow noreferrer>

源代码：

  import static marvin.MarvinPluginCollection。 *; 
 
公共类SegmentDiagram {
 
 public SegmentDiagram（）{
 MarvinImage originalImage = MarvinImageIO.loadImage（./ res / diagram.png）; 
 MarvinImage image = originalImage.clone（）; 
 MarvinImage binImage = MarvinColorModelConverter.rgbToBinary（image，250）; 
 morphologicalErosion（binImage.clone（），binImage，MarvinMath.getTrueMatrix（5,5））; 
 image = MarvinColorModelConverter.binaryToRgb（binImage）; 
 MarvinSegment [] segments = floodfillSegmentation（image）; 
 
 for（int i = 1; i< segments.length; i ++）{
 MarvinSegment seg = segments [i]; 
 originalImage.drawRect（seg.x1，seg.y1，seg.width，seg.height，Color.red）; 
 originalImage.drawRect（seg.x1 + 1，seg.y1 + 1，seg.width，seg.height，Color.red）; 
} 
 MarvinImageIO.saveImage（originalImage，./ are / diagram_segmented.png）; 
} 
 
 public static void main（String [] args）{
 new SegmentDiagram（）; 
} 
} 
  

形状识别是另一个话题，已在Stack上讨论过溢出：

2D形状识别算法 - 寻找指导

I am working on a project which consist of a procedure of "reading diagram by computer" I will need to do image segmentation in order to identify the shapes and their locations in the image input. My professor said that I can use any public image segmentation library to do it. Is there any good image segmentation library which can serve this purpose?

thanks a lot

解决方案

In JAVA for example these tools provide many algorithms for image segmentation:

ImageJ

http://rsbweb.nih.gov/ij/

Fiji

http://fiji.sc/wiki/index.php/Fiji

Rapidminer IMMI

http://www.burgsys.com/image-mining

Marvin Framework

http://marvinproject.sourceforge.net/

---

COMPLEMENT

Even being generic, I think it is possible to answer this question in some sense. Since this question is closed, I gonna complement @radim-burget answer for those people that get here looking for a simple example of image segmentation in Java.

Image Segmentation is an image processing task and is handled by most image processing frameworks. In the example below I'm using Marvin Framework.

Algorithm to segment diagram elements:

1. Load image and binarize
2. Apply morphological erosion to remove lines, texts, etc
3. Apply floodfill segmentation to get segments
4. Draw the segments in the original image.

Input:

After Erosion:

Result:

Source Code:

import static marvin.MarvinPluginCollection.*;

public class SegmentDiagram {

    public SegmentDiagram(){
        MarvinImage originalImage = MarvinImageIO.loadImage("./res/diagram.png");
        MarvinImage image = originalImage.clone();
        MarvinImage binImage = MarvinColorModelConverter.rgbToBinary(image, 250);
        morphologicalErosion(binImage.clone(), binImage, MarvinMath.getTrueMatrix(5, 5));
        image = MarvinColorModelConverter.binaryToRgb(binImage);
        MarvinSegment[] segments = floodfillSegmentation(image);

        for(int i=1; i<segments.length; i++){
            MarvinSegment seg = segments[i];
            originalImage.drawRect(seg.x1, seg.y1, seg.width, seg.height, Color.red);
            originalImage.drawRect(seg.x1+1, seg.y1+1, seg.width, seg.height, Color.red);
        }
        MarvinImageIO.saveImage(originalImage, "./res/diagram_segmented.png");
    }

    public static void main(String[] args) {
        new SegmentDiagram();
    }
}

The shape recognition is another topic, already discussed on Stack Overflow:

2D Shape recognition algorithm - looking for guidance

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