Package com.luciad.format.nitf

Class TLcdNITFUncompressedImageDecoder

java.lang.Object

com.luciad.format.raster.ALcdTileDecoder

com.luciad.format.nitf.TLcdNITFUncompressedImageDecoder

All Implemented Interfaces:

ILcdTileDecoder, ILcdInputStreamFactoryCapable

public class TLcdNITFUncompressedImageDecoder
extends ALcdTileDecoder

This ILcdTileDecoder decodes uncompressed images in NITF files. The image index passed when decoding an image is interpreted as the offset of the image in the NITF file. This class is not meant to be used directly or extended from.

This class is thread-safe.

Since:

3.0

Constructor Summary

Constructors

Constructor	Description
TLcdNITFUncompressedImageDecoder(int aWidth, int aHeight, int aBandCount, int aBitsPerPixelPerBand, char aMode, ColorModel aColorModel)	Deprecated. this constructor does not allow adequate configuration of the decoder.
TLcdNITFUncompressedImageDecoder(int aWidth, int aHeight, List<ELcdNITFBandRepresentation> aBands, int aBitsPerPixelPerBand, char aMode, ColorModel aColorModel)	Deprecated. this constructor does not allow adequate configuration of the decoder.

Method Summary

Modifier and Type	Method	Description
protected ILcdTileInfo	readTileFromStream(InputStream aInputStream, int aOffset, int aSubTileWidth, int aSubTileHeight, int aRowIndex, int aColumnIndex, ILcdBuffer aBuffer)	Reads a sub-tile from an input stream.

Methods inherited from class com.luciad.format.raster.ALcdTileDecoder

getInputStreamFactory, isTraceOn, readTile, readTile, setClassTraceOn, setInputStreamFactory, setTraceOn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TLcdNITFUncompressedImageDecoder

@Deprecated
public TLcdNITFUncompressedImageDecoder(int aWidth,
 int aHeight,
 int aBandCount,
 int aBitsPerPixelPerBand,
 char aMode,
 ColorModel aColorModel)
                                 throws IOException

Deprecated.

this constructor does not allow adequate configuration of the decoder. Its options are too limited and will most likely result in exceptions later on.

Creates a new TLcdNITFUncompressedImageDecoder. The image bands are inferred from the band count:

• 1 band: M
• 3 bands: R, G, B
• 4 bands: R, G, B, M
• 5 bands: R, G, B, M, LU
• other combinations cannot be inferred automatically and will throw an exception

The pixel value type defaults to signed integer (SI). Tile sizes are determined at decode-time.

Parameters:

aWidth - the image width, expressed in pixels.

aHeight - the image height, expressed in pixels.

aBandCount - the number of color bands.

aBitsPerPixelPerBand - the number of bits per pixel and per color band (bpb). Only multiples of 8 (whole bytes) are supported.

aMode - the interleaving mode ('P', 'R', 'B' or 'S').

aColorModel - the color model. Ignored.

Throws:

IOException - for any IO exception.

See Also:

• TLcdNITFUncompressedImageDecoder(int, int, java.util.List, int, char, java.awt.image.ColorModel)

TLcdNITFUncompressedImageDecoder

@Deprecated
public TLcdNITFUncompressedImageDecoder(int aWidth,
 int aHeight,
 List<ELcdNITFBandRepresentation> aBands,
 int aBitsPerPixelPerBand,
 char aMode,
 ColorModel aColorModel)
                                 throws IOException

Deprecated.

this constructor does not allow adequate configuration of the decoder. Its options are too limited and will most likely result in exceptions later on.

Creates a new TLcdNITFUncompressedImageDecoder. The pixel value type defaults to signed integer (SI). Tile sizes are determined at decode-time.

Parameters:

aWidth - the image width, expressed in pixels.

aHeight - the image height, expressed in pixels.

aBands - the color bands in the image.

aBitsPerPixelPerBand - the number of bits per pixel and per color band (bpb). Only multiples of 8 (whole bytes) are supported.

aMode - the interleaving mode ('P', 'R', 'B' or 'S').

aColorModel - the color model. Ignored.

Throws:

IOException - for any IO exception.

Method Details

readTileFromStream

protected ILcdTileInfo readTileFromStream(InputStream aInputStream,
 int aOffset,
 int aSubTileWidth,
 int aSubTileHeight,
 int aRowIndex,
 int aColumnIndex,
 ILcdBuffer aBuffer)
                                   throws TLcdCodecException

Description copied from class: ALcdTileDecoder

Reads a sub-tile from an input stream.

Specified by:

readTileFromStream in class ALcdTileDecoder

Parameters:

aInputStream - the input stream from which the tile data can be read.

aOffset - the index of the tile in the given input stream (if applicable).

aSubTileWidth - the width of the sub-tiles, expressed in pixels.

aSubTileHeight - the height of the sub-tiles, expressed in pixels.

aRowIndex - the row number of the sub-tile to be decoded.

aColumnIndex - the column number of the sub-tile to be decoded.

aBuffer - the buffer in which the decoded bytes will be stored.

Returns:

ILcdTileInfo information about the decoded tile.

Throws:

TLcdCodecException - in case of decoding problems.