使用Apache Commons Imaging将EXIF数据写入TIFF文件

Question

如何使用Apache Commons Imaging将EXIF数据写入TIFF图像？

这是我试过的：

File img = new File("pic.tif");
File dst = new File("out.tif");
try (FileOutputStream fos = new FileOutputStream(dst);
     OutputStream os = new BufferedOutputStream(fos)) {

    TiffOutputSet outputSet = null;

    final ImageMetadata metadata = Imaging.getMetadata(img);
    final TiffImageMetadata tiffMetadata = (TiffImageMetadata) metadata;
    outputSet = tiffMetadata.getOutputSet();

    if (null == outputSet) {
        outputSet = new TiffOutputSet();
    }

    // New York City
    final double longitude = -74.0;
    final double latitude = 40 + 43 / 60.0;
    outputSet.setGPSInDegrees(longitude, latitude);

    new ExifRewriter().updateExifMetadataLossless(img, os, outputSet);
}

但是我收到了这个错误：

Exception in thread "main" org.apache.commons.imaging.ImageReadException: Not a Valid JPEG File: doesn't begin with 0xffd8
    at org.apache.commons.imaging.common.BinaryFunctions.readAndVerifyBytes(BinaryFunctions.java:134)
    at org.apache.commons.imaging.formats.jpeg.JpegUtils.traverseJFIF(JpegUtils.java:56)
    at org.apache.commons.imaging.formats.jpeg.exif.ExifRewriter.analyzeJFIF(ExifRewriter.java:186)
    at org.apache.commons.imaging.formats.jpeg.exif.ExifRewriter.updateExifMetadataLossless(ExifRewriter.java:376)
    at org.apache.commons.imaging.formats.jpeg.exif.ExifRewriter.updateExifMetadataLossless(ExifRewriter.java:298)
    at Test.main(Test.java:94)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

这似乎表明ExifRewriter类不支持TIFF？但是我应该使用哪个班级？

Answer 1

ExifRewriter是org.apache.commons.imaging.formats.jpeg包的工具，因此它不适用于TIFF格式。

要将EXIF和标记写入TIFF文件，您必须先读取它，然后使用为OutputSet创建的标记重新编写它：

BufferedImage img = Imaging.getBufferedImage(f);
byte[] imageBytes = Imaging.writeImageToBytes(img, ImageFormats.TIFF, new HashMap<>());

File ex = new File(FileUtils.getBaseFileName(f) + "_exif." + FileUtils.getExtension(f));
try(FileOutputStream fos = new FileOutputStream(ex);
    OutputStream os = new BufferedOutputStream(fos)) {
    new TiffImageWriterLossless(imageBytes).write(os, outputSet);
}

然后，您可能希望使用exif-ed覆盖原始文件：

Files.delete(Paths.get(f.toURI()));
Files.move(Paths.get(ex.toURI()), Paths.get(f.toURI()));

Answer 2

这也可能有所帮助

            BufferedImage bufferedImage = Imaging.getBufferedImage(out.toByteArray()); 
            File imageFile = new File(outputFileName);
            final Map<String, Object> optionalParams = new HashMap<String, Object>();

            TiffOutputSet tiffExif = new TiffOutputSet();
            tiffExif.addRootDirectory().add(MicrosoftTagConstants.EXIF_TAG_XPTITLE, "Title");
            optionalParams.put("EXIF", tiffExif);
            Imaging.writeImage(bufferedImage, imageFile, ImageFormats.TIFF, optionalParams);