Read Barcodes from Multipage TIFF Images in Java

A very common scenario for Aspose.BarCode for Java is to recognize barcodes from multi-page TIFF files. This example shows how to recognize barcodes within a multi-page tiff image.

String fileName = dataDir + "multi_page.tiff";
Iterator readers = javax.imageio.ImageIO.getImageReadersBySuffix("tiff");
if (readers.hasNext()) {
	File fi = new File(fileName);
	ImageInputStream iis = javax.imageio.ImageIO.createImageInputStream(fi);
	TIFFDecodeParam param = null;
	ImageDecoder dec = ImageCodec.createImageDecoder("tiff", fi, param);

	// Get the page count of the TIFF image
	int pageCount = dec.getNumPages();

	ImageReader _imageReader = (ImageReader) (readers.next());
	if (_imageReader != null) {

		_imageReader.setInput(iis, true);

		// Feed each page to the BarCodeReader
		for (int i = 0; i < pageCount; i++) {
			BufferedImage _bufferedImage = _imageReader.read(i);
			BarCodeReader reader = new BarCodeReader(_bufferedImage, DecodeType.DATA_MATRIX);

			// Read the barcodes in a single page
			for (BarCodeResult result : reader.readBarCodes()) {
				System.out.println(result.getCodeText());
			}
		}

	}
}