|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
ObjectTIFFCompressor
TIFFBaseJPEGCompressor
public abstract class TIFFBaseJPEGCompressor
Base class for all possible forms of JPEG compression in TIFF.
| Field Summary | |
|---|---|
protected static String |
IMAGE_METADATA_NAME
|
protected JPEGImageWriteParam |
JPEGParam
ImageWriteParam for JPEG writer. |
protected IIOMetadata |
JPEGStreamMetadata
Stream metadata equivalent to a tables-only stream such as in the JPEGTables. |
protected ImageWriter |
JPEGWriter
The JPEG writer. |
protected static String |
STREAM_METADATA_NAME
|
protected boolean |
writeAbbreviatedStream
Whether to write abbreviated JPEG streams (default == false). |
| Fields inherited from class TIFFCompressor |
|---|
compressionTagValue, compressionType, isCompressionLossless, metadata, stream, writer |
| Constructor Summary | |
|---|---|
TIFFBaseJPEGCompressor(String compressionType,
int compressionTagValue,
boolean isCompressionLossless,
ImageWriteParam param)
|
|
| 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. |
protected void |
finalize()
|
protected void |
initJPEGWriter(boolean supportsStreamMetadata,
boolean supportsImageMetadata)
Initializes the JPEGWriter and JPEGParam instance variables. |
| Methods inherited from class TIFFCompressor |
|---|
getCompressionTagValue, getCompressionType, getMetadata, getStream, getWriter, isCompressionLossless, setMetadata, setStream, setWriter |
| Methods inherited from class Object |
|---|
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected static final String STREAM_METADATA_NAME
protected static final String IMAGE_METADATA_NAME
protected JPEGImageWriteParam JPEGParam
#initJPEGWriter().
protected ImageWriter JPEGWriter
#initJPEGWriter().
protected boolean writeAbbreviatedStream
true should also
initialized JPEGStreamMetadata.
protected IIOMetadata JPEGStreamMetadata
JPEGTables. Default value is null.
This should be set by any subclass which sets
writeAbbreviatedStream to true.
| Constructor Detail |
|---|
public TIFFBaseJPEGCompressor(String compressionType,
int compressionTagValue,
boolean isCompressionLossless,
ImageWriteParam param)
| Method Detail |
|---|
protected void initJPEGWriter(boolean supportsStreamMetadata,
boolean supportsImageMetadata)
supportsStreamMetadata - Whether the JPEG writer must
support JPEG native stream metadata, i.e., be capable of writing
abbreviated streams.supportsImageMetadata - Whether the JPEG writer must
support JPEG native image metadata.
public final int encode(byte[] b,
int off,
int width,
int height,
int[] bitsPerSample,
int scanlineStride)
throws IOException
TIFFCompressorImageOutputStream.
encode in class TIFFCompressorb - 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.
IOException - if the supplied data cannot be encoded by
this TIFFCompressor, or if any I/O error occurs
during writing.
protected void finalize()
throws Throwable
finalize in class ObjectThrowable
|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||