it.geosolutions.imageioimpl.plugins.tiff
Class TIFFLZWCompressor
Object
TIFFCompressor
TIFFLZWCompressor
public class TIFFLZWCompressor
- extends TIFFCompressor
LZW Compressor.
Method Summary |
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 . |
void |
setStream(ImageOutputStream stream)
Sets the ImageOutputStream to be written. |
Methods inherited from class Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TIFFLZWCompressor
public TIFFLZWCompressor(int predictorValue)
setStream
public void setStream(ImageOutputStream stream)
- Description copied from class:
TIFFCompressor
- Sets the
ImageOutputStream
to be written.
- Overrides:
setStream
in class TIFFCompressor
- Parameters:
stream
- an ImageOutputStream
to be written.- See Also:
TIFFCompressor.getStream()
encode
public int encode(byte[] b,
int off,
int width,
int height,
int[] bitsPerSample,
int scanlineStride)
throws 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 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.
- Returns:
- the number of bytes written.
- Throws:
IOException
- if the supplied data cannot be encoded by
this TIFFCompressor
, or if any I/O error occurs
during writing.
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