java 在java中将bmp转换为jpg
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converting bmp to jpg in java
提问by Jeel Shah
How do you convert bmp to jpg in Java? I know how to use the ImageIOway but is there a much faster or better way of doing it?
你如何在Java中将bmp转换为jpg？我知道如何使用这种ImageIO方式，但有没有更快或更好的方法呢？
This is the ImageIO way of doing that I found on the web.
这是我在网上找到的 ImageIO 方法。
`//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);
If I use this way will I lose quality?
如果我使用这种方式，我会失去质量吗？
Thanks
谢谢
回答by mprivat
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).
是的你将会。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。如果将 JPG 质量设置为 100%，则可以限制损坏（在我看来，这违背了目的）。
Use this tutorialto fix it.
使用本教程来修复它。
