直接上代码:
close all; import java.io.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImage.*;
import javax.imageio.ImageIO; h = 700;
w = 500; image = BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
graphics = image.getGraphics();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); %对指定的矩形区域填充颜色
graphics.setColor(Color.WHITE); %GREEN:绿色。 红色:RED; 灰色:GRAY
graphics.fillRect(0, 0, w, h); %对指定的矩形区域填充颜色
graphics.setColor(Color.WHITE);
graphics.fillRect(240, 0, 240, 720); graphics.setColor(Color.BLACK); %画直线
x=100,y=100,x1=150,y1=y + 200;
graphics.drawLine(x,y,x+x1,y1); %多边形
xPoints = [90,100,250,250];
yPoints = [180,150,150,180];
graphics.drawPolyline(xPoints, yPoints, 4); %椭圆
xOval=100,yOval=360;
graphics.drawOval(xOval, yOval, 150, 130); %文字
graphics.drawString('直线',100+50,100-5); graphics.dispose();
ImageIO.write(image,'JPEG', File('testx.jpg')); img = imread('testx.jpg');
imshow(img);