本文整理汇总了Java中javax.media.jai.KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL属性的典型用法代码示例。如果您正苦于以下问题：Java KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL属性的具体用法？Java KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL怎么用？Java KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类javax.media.jai.KernelJAI的用法示例。
在下文中一共展示了KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL属性的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: computeEdgeDensityClutter
private double computeEdgeDensityClutter(PlanarImage image) {
// first compute the RenderedOp that computes both vertical and
// horizontal
// edge detection
KernelJAI sobelVertKernel = KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL;
KernelJAI sobelHorizKernel = KernelJAI.GRADIENT_MASK_SOBEL_HORIZONTAL;
ParameterBlock pb = new ParameterBlock();
pb.addSource(image);
pb.add(sobelHorizKernel);
pb.add(sobelVertKernel);
RenderedOp renderedOp = JAI.create("gradientmagnitude", pb);
BufferedImage edgeImage = renderedOp.getAsBufferedImage();
// then compute a density value, i.e. the mean
int edgeTotal = 0;
for (int i = 0; i < edgeImage.getWidth(); i++)
for (int j = 0; j < edgeImage.getHeight(); j++)
edgeTotal += Math.abs(edgeImage.getRGB(i, j));
return Math.abs(edgeTotal / (edgeImage.getWidth() * edgeImage.getHeight()));
}
示例2: actionPerformed
@Override
public void actionPerformed(ActionEvent e) {
// get the filename
JFileChooser fc = new JFileChooser();
fc.setFileFilter(new ImageFileFilter());
int returnVal = fc.showDialog(null, "Choose the image to assess");
if (returnVal != JFileChooser.APPROVE_OPTION) {
return;
}
File path = fc.getSelectedFile();
BufferedImage image;
try {
image = ImageIO.read(path);
TiledImage pImage = new TiledImage(image, true);
RasterClutterMethod clutterMethod = new RasterClutterMethod(pImage);
System.out.println(clutterMethod.getEdgeDensityClutter());
// export image
KernelJAI sobelVertKernel = KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL;
KernelJAI sobelHorizKernel = KernelJAI.GRADIENT_MASK_SOBEL_HORIZONTAL;
ParameterBlock pb = new ParameterBlock();
pb.addSource(image);
pb.add(sobelHorizKernel);
pb.add(sobelVertKernel);
RenderedOp renderedOp = JAI.create("gradientmagnitude", pb);
BufferedImage edgeImage = renderedOp.getAsBufferedImage();
File outputfile = new File(path.getParent() + "\\"
+ path.getName().substring(0, path.getName().length() - 4)
+ "_edge.png");
ImageIO.write(edgeImage, "png", outputfile);
} catch (IOException e1) {
e1.printStackTrace();
}
}