Java 旋转图像质量下降

Question

我有旋转图像的功能。虽然我正在失去质量。有什么改变可以改善它吗？

 public BufferedImage RotateImage(String imagePath,int degrees) throws IOException{ 
         File file = new File(imagePath);
         Image image = ImageIO.read(file);
         BufferedImage img=bufferImage(image, BufferedImage.TYPE_INT_RGB);

         AffineTransform tx = new AffineTransform();
         double radians = (Math.PI / 180) * degrees;

         double width = img.getWidth()/2;
         double height = img.getHeight()/2;

         if(degrees != 180){
             tx.translate(height,width);
             tx.rotate(radians);
             tx.translate(-width,-height);
         }else{                      
         tx.rotate(radians,width, height);
         }

         AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
         img = op.filter(img, null);
         return img;
         }

Answer 1

Try using bicubic or bilinear 。链接显示了每个示例。

AffineTransformOp op = 
    new AffineTransformOp(tx, AffineTransformOp.TYPE_BILINEAR);