Java图像卷积 [英] java image convolution
问题描述
我试图平滑滤波器应用到图像。但我得到这个错误:
java.awt.image.ImagingOpException:无法卷积SRC形象
在java.awt.image.ConvolveOp.filter(ConvolveOp.java:180)
在ocr.Resolution.smoothing(Resolution.java:102)
在ocr.Interface $ ButtonListener.actionPerformed(Interface.java:332)
在javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
在javax.swing.AbstractButton中的$ Handler.actionPerformed(AbstractButton.java:2318)
在javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
在javax.swing.DefaultButtonModel.set pressed(DefaultButtonModel.java:242)
在javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
在java.awt.Component.processMouseEvent(Component.java:6038)
在javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
在java.awt.Component.processEvent(Component.java:5803)
在java.awt.Container.processEvent(Container.java:2058)
在java.awt.Component.dispatchEventImpl(Component.java:4410)
在java.awt.Container.dispatchEventImpl(Container.java:2116)
在java.awt.Component.dispatchEvent(Component.java:4240)
在java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
在java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
在java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
在java.awt.Container.dispatchEventImpl(Container.java:2102)
我已经研究,但找不到任何确切的解决方案。要看到问题的根源,我有负载图像作为图标。他们都OK。这个问题的原因可能是该图像是后加载,因此它不能应用过滤器?
另外,我会申请细化算法和一些其他的过滤器了。你觉得如果是更好地处理,而不是java做。感谢您的任何帮助。
过滤器=新的浮动[] {1.0F / 121.0f,2.0F / 121.0f,3.0F / 121.0f,2.0F / 121.0f,1.0F / 121.0f,
2.0F / 121.0f,7.0f / 121.0f,11.0f / 121.0f,7.0f / 121.0f,2.0F / 121.0f,
3.0F / 121.0f,11.0f / 121.0f,17.0f / 121.0f,11.0f / 121.0f,3.0F / 121.0f,
2.0F / 121.0f,7.0f / 121.0f,11.0f / 121.0f,7.0f / 121.0f,2.0F / 121.0f,
1.0F / 121.0f,2.0F / 121.0f,3.0F / 121.0f,2.0F / 121.0f,1.0F / 121.0f};
kernelWidth = 5;
kernelHeight = 5;
BufferedImageOp中bufOp;
的BufferedImage bufImg;
图片IMG; IMG = Toolkit.getDefaultToolkit()的getImage(Interface.picPath)。 //加载图像
IMAGESIZE大小=新IMAGESIZE(IMG); //实例来获得图像的尺寸
bufImg =新的BufferedImage(size.getwidth(),size.getheight(),BufferedImage.TYPE_INT_RGB);
尝试{
bufImg = ImageIO.read(新文件(Interface.picPath)); }赶上(IOException异常前){
。Logger.getLogger(Resolution.class.getName())日志(Level.SEVERE,空,前);
} 内核=新的内核(kernelWidth,kernelHeight,过滤器);
bufOp =新的ConvolveOp(内核);
bufImg = bufOp.filter(bufImg,NULL);
我已经找到了解决办法。而不是创建的BufferedImage(bufImg)使用URL的,我转换图像本身(IMG),以BufferedImage的,它现在运行。
公共无效平滑(){
过滤器=新的浮动[] {1.0F / 121.0f,2.0F / 121.0f,3.0F / 121.0f,2.0F / 121.0f,1.0F / 121.0f,
2.0F / 121.0f,7.0f / 121.0f,11.0f / 121.0f,7.0f / 121.0f,2.0F / 121.0f,
3.0F / 121.0f,11.0f / 121.0f,17.0f / 121.0f,11.0f / 121.0f,3.0F / 121.0f,
2.0F / 121.0f,7.0f / 121.0f,11.0f / 121.0f,7.0f / 121.0f,2.0F / 121.0f,
1.0F / 121.0f,2.0F / 121.0f,3.0F / 121.0f,2.0F / 121.0f,1.0F / 121.0f};
kernelWidth = 5;
kernelHeight = 5;
内核=新的内核(kernelWidth,kernelHeight,过滤器);
OP =新的ConvolveOp(内核); IMG = Toolkit.getDefaultToolkit()的getImage(Interface.picPath)。
imageToBufferedImage(IMG);
bufImg = op.filter(bufImg,NULL); 图标=新的ImageIcon(img.getScaledInstance(175,175,Image.SCALE_DEFAULT));
图标2 =新的ImageIcon(img.getScaledInstance(300,300,Image.SCALE_DEFAULT));
Interface.label3.setIcon(图标);
Interface.label8.setIcon(图标2);}公共无效imageToBufferedImage(像IM){
IMAGESIZE大小=新IMAGESIZE(IM);
bufImg =新的BufferedImage(size.getwidth(),size.getheight(),BufferedImage.TYPE_INT_RGB);
图形图表= bufImg.getGraphics();
graph.drawImage(1M,0,0,NULL);
graph.dispose();
}
I am trying to apply smoothing filter to image . But I get this bug :
java.awt.image.ImagingOpException: Unable to convolve src image
at java.awt.image.ConvolveOp.filter(ConvolveOp.java:180)
at ocr.Resolution.smoothing(Resolution.java:102)
at ocr.Interface$ButtonListener.actionPerformed(Interface.java:332)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
I have researched but couldn't find any exact solution. To see the source of problem , I have load images as icon . They are ok. Can the reason of this problem be that the image is loading later , so it couldn't apply the filter ?
Also , I will apply thinning algorithm and some other filters too. Do you think If it is better to do in Processing instead of Java. Thank you for any help.
filter = new float[] { 1.0f/121.0f, 2.0f/121.0f, 3.0f/121.0f, 2.0f/121.0f, 1.0f/121.0f,
2.0f/121.0f, 7.0f/121.0f, 11.0f/121.0f, 7.0f/121.0f, 2.0f/121.0f,
3.0f/121.0f, 11.0f/121.0f, 17.0f/121.0f, 11.0f/121.0f, 3.0f/121.0f,
2.0f/121.0f, 7.0f/121.0f, 11.0f/121.0f, 7.0f/121.0f, 2.0f/121.0f,
1.0f/121.0f, 2.0f/121.0f, 3.0f/121.0f, 2.0f/121.0f, 1.0f/121.0f};
kernelWidth = 5;
kernelHeight = 5;
BufferedImageOp bufOp ;
BufferedImage bufImg;
Image img;
img = Toolkit.getDefaultToolkit().getImage(Interface.picPath); //load image
ImageSize size = new ImageSize(img);// instance to get image dimensions
bufImg = new BufferedImage (size.getwidth(),size.getheight(),BufferedImage.TYPE_INT_RGB);
try {
bufImg = ImageIO.read(new File(Interface.picPath) );
} catch (IOException ex) {
Logger.getLogger(Resolution.class.getName()).log(Level.SEVERE, null, ex);
}
kernel = new Kernel( kernelWidth, kernelHeight, filter);
bufOp = new ConvolveOp(kernel);
bufImg = bufOp.filter(bufImg, null);
I have found a solution. Instead of creating BufferedImage(bufImg) using URl, I converted the image itself (img ) to BufferedImage and it runs now.
public void smoothing(){
filter = new float[] { 1.0f/121.0f, 2.0f/121.0f, 3.0f/121.0f, 2.0f/121.0f, 1.0f/121.0f,
2.0f/121.0f, 7.0f/121.0f, 11.0f/121.0f, 7.0f/121.0f, 2.0f/121.0f,
3.0f/121.0f, 11.0f/121.0f, 17.0f/121.0f, 11.0f/121.0f, 3.0f/121.0f,
2.0f/121.0f, 7.0f/121.0f, 11.0f/121.0f, 7.0f/121.0f, 2.0f/121.0f,
1.0f/121.0f, 2.0f/121.0f, 3.0f/121.0f, 2.0f/121.0f, 1.0f/121.0f};
kernelWidth = 5;
kernelHeight = 5;
kernel = new Kernel( kernelWidth, kernelHeight, filter);
op = new ConvolveOp(kernel);
img = Toolkit.getDefaultToolkit().getImage(Interface.picPath);
imageToBufferedImage(img);
bufImg = op.filter(bufImg, null);
icon = new ImageIcon(img.getScaledInstance(175, 175, Image.SCALE_DEFAULT));
icon2 = new ImageIcon(img.getScaledInstance(300, 300, Image.SCALE_DEFAULT));
Interface.label3.setIcon(icon);
Interface.label8.setIcon(icon2);
}
public void imageToBufferedImage(Image im) {
ImageSize size = new ImageSize(im);
bufImg = new BufferedImage (size.getwidth(), size.getheight(),BufferedImage.TYPE_INT_RGB);
Graphics graph = bufImg.getGraphics();
graph.drawImage(im, 0, 0, null);
graph.dispose();
}
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