体素 voxel

体素是三维空间的像素。体素网格是用固定大小的立方块作为最小单元来表示三维物体的一种数据结构。

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/**
 * 该程序实现鼠标事实获取stack当前图像（slice）的体素值（16unit 颜色值）
 * 备注：通过该体素值可以进一步匹配到对应的脑区（该程序不包含此部分）
 * 代码主要参考了BIRDS配准源码
 * @author 文欣
 * @version 1.0
 */
package I.plugin;

import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

import ij.IJ;
import ij.ImageJ;
import ij.ImagePlus;
import ij.ImageStack;

public class Test04 implements MouseListener,MouseMotionListener{
	private Test04() {}
	public static ImagePlus brainImg;
	public static void main(String[] args) {
		new ImageJ();
		
		brainImg = IJ.openImage("D:/Desktop/annotationOrgImage.tif");
		brainImg.show();
		
		System.out.println(brainImg.getTitle());
		System.out.println(brainImg.getStackSize());
		new Test04().addMouseListener();
	}
	public void addMouseListener() {
		 
		brainImg.getCanvas().addMouseListener(this);
		brainImg.getCanvas().addMouseMotionListener(this);
	}
	public void mouseMoved(MouseEvent e) {
		ImageStack brainStack = brainImg.getImageStack();
		int currentSlice = brainImg.getCurrentSlice(); 
		Point tempPoint = brainImg.getCanvas().getCursorLoc();
		int val = (int)(brainStack.getVoxel(tempPoint.x, tempPoint.y, currentSlice-1));//16位像素值
		System.out.println(val); //打印
	}

	@Override
	public void mouseDragged(MouseEvent e) {}

	@Override
	public void mouseClicked(MouseEvent e) {}

	@Override
	public void mousePressed(MouseEvent e) {}

	@Override
	public void mouseReleased(MouseEvent e) {}

	@Override
	public void mouseEntered(MouseEvent e) {}

	@Override
	public void mouseExited(MouseEvent e) {}

}

参考文章