java Apache Commons映像将tiff转换为jpg

Question

我需要使用Apache Commons Imaging将tiff图像转换为jpg图像。 我试过了，但我不知道如何使用这个库

final BufferedImage image = Imaging.getBufferedImage(new File(image));
final ImageFormat format = ImageFormats.JPEG;
final Map<String, Object> params = new HashMap<>();
return Imaging.writeImageToBytes(image, format, params);

其中image是要转换的tiff文件，但我得到

org.apache.commons.imaging.ImageWriteException: This image format (Jpeg-Custom) cannot be written.

我不明白我做错了什么有人能帮忙吗

Answer 1

尝试使用java AWT：

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

和代码：

  // TIFF image file read
  BufferedImage tiffImage = ImageIO.read(new File("tiff-image.tiff"));
  // Prepare the image before writing - with same dimensions
  BufferedImage jpegImage = new BufferedImage(
          tiffImage.getWidth(),
          tiffImage.getHeight(), 
          BufferedImage.TYPE_INT_RGB);
  // Draw image from original TIFF to the new JPEG image
  jpegImage.createGraphics().drawImage(tiffImage, 0, 0, Color.WHITE, null);
  // Write the image as JPEG to disk
  ImageIO.write(jpegImage, "jpg", new File("jpeg-image.jpg"));