equipment-cs/LEDTest/src/com/fire/LightingTestingTask.java

package com.fire;

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

public class LightingTestingTask {

	public static void main(String[] args) {
		String fileName = "D://tt.jpg";
		LightingTestingTask t = new LightingTestingTask();
		t.readImage(fileName);
	}
	
	public void readImage(String path) {
		try {
//			driver.manage().window().maximize();
			int[] rgb = new int[3];
			BufferedImage img = ImageIO.read(new File(path));
			int width = img.getWidth();
			int height = img.getHeight();
			int minx = img.getMinX();
			int miny = img.getMinY();
			
			System.out.println("width=" + width + ",height=" + height + ".");
			System.out.println("minx=" + minx + ",miniy=" + miny + ".");
			for (int i = minx; i < width; i++) {
				for (int j = miny; j < height; j++) {
//					System.out.println(i+":"+j);
					int w=20;
					int h=20;
//					if(height-j<=h && width-i>=w) {
//						//高度超出图片范围，但是宽度未超出
//						
//					}else {
//						BufferedImage rect = img.getSubimage(i, j, w, h);
//					}
					
					
					int pixel = img.getRGB(i, j); // 下面三行代码将一个数字转换为RGB数字
//					Color c = new Color(pixel);
//			        int r = c.getRed();
//			        int g = c.getGreen();
//			        int b = c.getBlue();
//			        System.out.println(c + "\t红=" + r + "\t绿" + g + "\t蓝" + b);
//					int r1 = (pixel >> 16) & 0xFF;
//			        int g1 = (pixel >> 8) & 0xFF;
//			        int b1 = (pixel >> 0) & 0xFF;
//					System.out.println("红="+r1+"\t绿="+g1+"\t蓝="+b1);
					rgb[0] = (pixel & 0xff0000) >> 16;
					rgb[1] = (pixel & 0xff00) >> 8;
					rgb[2] = (pixel & 0xff);
//					if(i==539 && j==569) {
//						System.out.println("红="+rgb[0]+"\t绿="+rgb[1]+"\t蓝="+rgb[2]);
//					}
					
					if (rgb[0] != 255 || rgb[1] != 255 || rgb[2] != 255) {
						
						//红色判断
						if (rgb[0]>=230 && rgb[1] <=150 && rgb[2] <= 178) {
							System.out.println("红色i=" + i + ",j=" + j + ":(" + rgb[0] + ","
									+ rgb[1] + "," + rgb[2] + ")");
						} else if (rgb[0] <= 50 && rgb[1] >= 200 && rgb[2] <= 50) {
							System.out.println("绿色i=" + i + ",j=" + j + ":(" + rgb[0] + ","
									+ rgb[1] + "," + rgb[2] + ")");
						} else if (rgb[0] <= 50 && rgb[1] <= 50 && rgb[2] >= 200) {
							System.out.println("蓝色i=" + i + ",j=" + j + ":(" + rgb[0] + ","
									+ rgb[1] + "," + rgb[2] + ")");
						}else if(rgb[0] >= 250 && rgb[1] <= 228 && rgb[2] <=200) {
							System.out.println("黄色i=" + i + ",j=" + j + ":(" + rgb[0] + ","
									+ rgb[1] + "," + rgb[2] + ")");
						}
					}
				}
			}
			System.out.println("跑完了...");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}