Constructor Detail

• TiffReader

  public TiffReader()

Method Detail

• processTiff

  public void processTiff(RandomAccessReader reader,
                 TiffHandler handler,
                 int tiffHeaderOffset)
                   throws TiffProcessingException,
                          IOException

  Processes a TIFF data sequence.

  Parameters:

  reader - the RandomAccessReader from which the data should be read

  handler - the TiffHandler that will coordinate processing and accept read values

  tiffHeaderOffset - the offset within reader at which the TIFF header starts

  Throws:

  TiffProcessingException - if an error occurred during the processing of TIFF data that could not be ignored or recovered from

  IOException - an error occurred while accessing the required data

• processIfd

  public static void processIfd(TiffHandler handler,
                RandomAccessReader reader,
                Set<Integer> processedIfdOffsets,
                int ifdOffset,
                int tiffHeaderOffset)
                         throws IOException

  Processes a TIFF IFD. IFD Header:

  • 2 bytes number of tags

  Tag structure:

  • 2 bytes tag type
  • 2 bytes format code (values 1 to 12, inclusive)
  • 4 bytes component count
  • 4 bytes inline value, or offset pointer if too large to fit in four bytes

  Parameters:

  handler - the TiffHandler that will coordinate processing and accept read values

  reader - the RandomAccessReader from which the data should be read

  processedIfdOffsets - the set of visited IFD offsets, to avoid revisiting the same IFD in an endless loop

  ifdOffset - the offset within reader at which the IFD data starts

  tiffHeaderOffset - the offset within reader at which the TIFF header starts

  Throws:

  IOException - an error occurred while accessing the required data