用java将png图片转换成jpg格式的图片_java heic to jpg

作者：菜鸟追梦旅行 | 2024-06-14 03:03:59

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java heic to jpg

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

public class ConvertImageFile {

   public static void main(String[] args) {

    BufferedImage bufferedImage;

    try {

      //read image file
      bufferedImage = ImageIO.read(new File("c:\\java.png"));

      // create a blank, RGB, same width and height, and a white background
      BufferedImage newBufferedImage = new BufferedImage(bufferedImage.getWidth(),

bufferedImage.getHeight(), BufferedImage.TYPE_INT_RGB);

//TYPE_INT_RGB:创建一个RBG图像，24位深度，成功将32位图转化成24位

      newBufferedImage.createGraphics().drawImage(bufferedImage, 0, 0, Color.WHITE, null);

      // write to jpeg file
      ImageIO.write(newBufferedImage, "jpg", new File("c:\\java.jpg"));

      System.out.println("Done");

    } catch (IOException e) {

      e.printStackTrace();

    }

   }

}

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