在java中将bmp转换为jpg [英] converting bmp to jpg in java

问题描述

如何在Java中将bmp转换为jpg？我知道如何使用 ImageIO 的方式，但有更快或更好的方法吗？

How do you convert bmp to jpg in Java? I know how to use the ImageIO way but is there a much faster or better way of doing it?

这个是我在网上找到的ImageIO方式。

This is the ImageIO way of doing that I found on the web.

`//Create file for the source  
File input = new File("c:/temp/image.bmp");  

//Read the file to a BufferedImage  
BufferedImage image = ImageIO.read(input);`

//Create a file for the output  
File output = new File("c:/temp/image.jpg");  

//Write the image to the destination as a JPG  
ImageIO.write(image, "jpg", output);

如果我使用这种方式，我会失去质量吗？

If I use this way will I lose quality?

谢谢

推荐答案

是的，你会的。实际上无论将BMP（无损）转换为JPG（有损）的方式如何，您总是会失去质量。如果您将JPG质量设置为100％（在我看来哪种方式违背了目的），您可以限制损坏。

Yes you will. Actually regardless of the way to convert a BMP (lossless) to JPG (lossy) you always lose quality. You can limit the damage if you set the JPG quality to 100% (which kind of defeats the purpose in my opinion).

使用此教程来修复它。

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