public class TIFFT4Compressor extends TIFFFaxCompressor
Modifier and Type | Field and Description |
---|---|
private boolean |
is1DMode |
private boolean |
isEOLAligned |
bits, BLACK, byteTable, horz, horzMode, inverseFill, makeupCodes, makeupCodesBlack, makeupCodesWhite, ndex, pass, passMode, termCodes, termCodesBlack, termCodesWhite, vert, vertMode, WHITE
compressionTagValue, compressionType, isCompressionLossless, metadata, stream, writer
Constructor and Description |
---|
TIFFT4Compressor() |
Modifier and Type | Method and Description |
---|---|
int |
encode(byte[] b,
int off,
int width,
int height,
int[] bitsPerSample,
int scanlineStride)
Encodes the supplied image data, writing to the currently set
ImageOutputStream . |
int |
encodeT4(boolean is1DMode,
boolean isEOLAligned,
byte[] data,
int lineStride,
int colOffset,
int width,
int height,
byte[] compData)
Encode a buffer of data using CCITT T.4 Compression also known as
Group 3 facsimile compression.
|
void |
setMetadata(IIOMetadata metadata)
Sets the value of the
metadata field. |
add1DBits, add2DBits, addEOFB, addEOL, encode1D, initBitBuf, nextState
getCompressionTagValue, getCompressionType, getMetadata, getStream, getWriter, isCompressionLossless, setStream, setWriter
public void setMetadata(IIOMetadata metadata)
metadata
field.
The implementation in this class also sets local options from the T4_OPTIONS field if it exists, and if it doesn't, adds it with default values.
setMetadata
in class TIFFFaxCompressor
metadata
- the IIOMetadata
object for the
image being written.TIFFCompressor.getMetadata()
public int encodeT4(boolean is1DMode, boolean isEOLAligned, byte[] data, int lineStride, int colOffset, int width, int height, byte[] compData)
is1DMode
- Whether to perform one-dimensional encoding.isEOLAligned
- Whether EOL bit sequences should be padded.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.public int encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride) throws IOException
TIFFCompressor
ImageOutputStream
.encode
in class TIFFCompressor
b
- an array of byte
s 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 int
s 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.IOException
- if the supplied data cannot be encoded by
this TIFFCompressor
, or if any I/O error occurs
during writing.Copyright © 2016 Open Microscopy Environment