ImageIO reduced the size of my photo file?

Hello

I used the code below in an attempt to write an image file in the DB
BufferedImage originalImage = ImageIO.read (new File("c:\\test.jpg"));)
ByteArrayOutputStream Baos = new ByteArrayOutputStream();
ImageIO.write (originalImage, "jpg", baos);
Baos.Flush ();
Byte [] fileBytes = baos.toByteArray ();

Save fileBytes DB if the column accepts the value of type BLOB.

I used the code below in an attempt to read from the database and write to the file system.
Bais ByteArrayInputStream = getFileBytesFromDB();
The BufferedImage = ImageIO.read (bais);
ImageIO.write (consulterles, "jpg", new File("c:\\test1.jpg"));)

I noticed that the resulting file size has been reduced by almost half after writing to the file system. Anyone know why?
:)

As he says, do not use ImageIO. It's re-encoding JPEG format which is morphing your data. Just copy it in the form of bytes using input and output streams. Much faster, too.

Tags: Java

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