java根据坐标在图片上绘图

╰+攻爆jí腚メ 2022-11-17 14:35 584阅读 0赞

要求：在原图片上，根据坐标点，框出指定位置  
原图：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpZWp1bm5h_size_16_color_FFFFFF_t_70]  
已知坐标位置：

"location": { 
    			"width": 440,
    			"top": 3,
    			"height": 716,
    			"left": 2289
    		}

绘制后图片：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpZWp1bm5h_size_16_color_FFFFFF_t_70 1]  
代码示例：

package com.test.demo;
    
    import java.awt.BasicStroke;
    import java.awt.Color;
    import java.awt.Font;
    import java.awt.Graphics2D;
    import java.awt.image.BufferedImage;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import javax.imageio.ImageIO;
    
    public class DrawImage { 
    	public static void main(String[] args) { 
    		int width = 440;
    		int height = 716;
    		int y = 3;//top
    		int x = 2289;//left
    		String oriImagePath = "F:\\image\\hjsb44";
    		String imagetype = ".jpg";
    		String oriImage = oriImagePath + imagetype;
    		String copyImageName = "_copy";
    		String drawImage = oriImagePath + copyImageName + imagetype;
    		BufferedImage bufferedImage = null;
    		//读取图片文件，得到BufferedImage对象
    		try { 
    			bufferedImage = ImageIO.read(new FileInputStream(oriImage));
    		} catch (FileNotFoundException e) { 
    			e.printStackTrace();
    		} catch (IOException e) { 
    			e.printStackTrace();
    		}
    		//得到Graphics2D 对象
    		Graphics2D g2D=(Graphics2D)bufferedImage.getGraphics();
    		//设置颜色、画笔粗细
    		g2D.setColor(Color.RED);
    		g2D.setStroke(new BasicStroke(5));
    		//绘制矩形
    		g2D.drawRect(x, y, width, height);
    		g2D.setFont(new Font("",Font.BOLD,40));
    		//绘制文字
    		g2D.drawString("XXX洗衣液", x+10, y+60);
    		
    		try { 
    			//保存绘制后的新图片
    			ImageIO.write(bufferedImage, "JPG",new FileOutputStream(drawImage));
    		} catch (FileNotFoundException e) { 
    			e.printStackTrace();
    		} catch (IOException e) { 
    			e.printStackTrace();
    		}
    		
    	}
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpZWp1bm5h_size_16_color_FFFFFF_t_70]: /images/20221022/6f540d6287b94131b4abcaa37f633d98.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpZWp1bm5h_size_16_color_FFFFFF_t_70 1]: /images/20221022/51920e192bcb4ae09896f2acd727bde6.png