Class TIFFT6Compressor

    • Constructor Detail

      • TIFFT6Compressor

        public TIFFT6Compressor()
    • Method Detail

      • encodeT6

        public int encodeT6​(byte[] data,
                            int lineStride,
                            int colOffset,
                            int width,
                            int height,
                            byte[] compData)
        Encode a buffer of data using CCITT T.6 Compression also known as Group 4 facsimile compression.
        Parameters:
        data - The row of data to compress.
        lineStride - Byte step between the same sample in different rows.
        colOffset - Bit offset within first data[rowOffset].
        width - Number of bits in the row.
        height - Number of rows in the buffer.
        compData - The compressed data.
        Returns:
        The number of bytes saved in the compressed data array.
      • encode

        public int encode​(byte[] b,
                          int off,
                          int width,
                          int height,
                          int[] bitsPerSample,
                          int scanlineStride)
                   throws java.io.IOException
        Description copied from class: TIFFCompressor
        Encodes the supplied image data, writing to the currently set ImageOutputStream.
        Specified by:
        encode in class TIFFCompressor
        Parameters:
        b - an array of bytes containing the packed but uncompressed image data.
        off - the starting offset of the data to be written in the array b.
        width - the width of the rectangle of pixels to be written.
        height - the height of the rectangle of pixels to be written.
        bitsPerSample - an array of ints indicting the number of bits used to represent each image sample within a pixel.
        scanlineStride - the number of bytes separating each row of the input data.
        Returns:
        the number of bytes written.
        Throws:
        java.io.IOException - if the supplied data cannot be encoded by this TIFFCompressor, or if any I/O error occurs during writing.