java 修改exif_java – 操作图像而不删除其EXIF数据

ImageIO本身就具有此功能,但您需要使用ImageReader而不是ImageIO.read：

ImageReader reader = ImageIO.getImageReadersBySuffix("jpg").next();

(您可能还想检查这样的阅读器是否存在).

然后你需要设置输入：

reader.setInput(ImageIO.createImageInputStream(your_imput_stream));

现在您可以保存元数据：

IIOMetadata metadata = reader.getImageMetadata(0);

// As far as I understand you should provide

// index as tiff images could have multiple pages

然后阅读图片：

BufferedImage bi = reader.read(0);

如果要保存新图像,则应使用ImageWriter：

// I'm writing to byte array in memory, but you may use any other stream

ByteArrayOutputStream os = new ByteArrayOutputStream(255);

ImageOutputStream ios = ImageIO.createImageOutputStream(os);

Iterator iter = ImageIO.getImageWritersByFormatName("jpeg");

ImageWriter writer = iter.next();

writer.setOutput(ios);

//You may want also to alter jpeg quality

ImageWriteParam iwParam = writer.getDefaultWriteParam();

iwParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);

iwParam.setCompressionQuality(.95f);

//Note: we're using metadata we've already saved.

writer.write(null, new IIOImage(bi, null, metadata), iwParam);

writer.dispose();

ImageIO.write(bi, "jpg", ios);

由于这是一个古老的主题,我想这个答案有点太晚了,但可能会帮助其他人,因为这个话题仍然可以转让.