jj2000.j2k.entropy

Class PrecinctSizeSpec

java.lang.Object

jj2000.j2k.ModuleSpec

jj2000.j2k.entropy.PrecinctSizeSpec

All Implemented Interfaces:

Cloneable

public class PrecinctSizeSpec
extends ModuleSpec

This class extends ModuleSpec class for precinct partition sizes holding purposes.

It stores the size a of precinct when precinct partition is used or not. If precinct partition is used, we can have several packets for a given resolution level whereas there is only one packet per resolution level if no precinct partition is used.

Field Summary

Fields inherited from class jj2000.j2k.ModuleSpec

compDef, def, nComp, nTiles, SPEC_COMP_DEF, SPEC_DEF, SPEC_TILE_COMP, SPEC_TILE_DEF, SPEC_TYPE_COMP, SPEC_TYPE_TILE, SPEC_TYPE_TILE_COMP, specified, specType, specValType, tileCompVal, tileDef

Constructor Summary

Constructors

Constructor and Description
PrecinctSizeSpec(int nt, int nc, byte type, BlkImgDataSrc imgsrc, IntegerSpec dls, J2KImageWriteParamJava wp, String values) Creates a new PrecinctSizeSpec object for the specified number of tiles and components and the J2KImageWriteParamJava instance.
PrecinctSizeSpec(int nt, int nc, byte type, IntegerSpec dls) Creates a new PrecinctSizeSpec object for the specified number of tiles and components.

Method Summary

Modifier and Type	Method and Description
int	getPPX(int t, int c, int rl) Returns the precinct partition width in component 'n' and tile 't' at resolution level 'rl'.
int	getPPY(int t, int c, int rl) Returns the precinct partition height in component 'n' and tile 't' at resolution level 'rl'.

Methods inherited from class jj2000.j2k.ModuleSpec

clone, getCompDef, getCopy, getDefault, getSpec, getSpecValType, getTileCompVal, getTileDef, isCompSpecified, isTileCompSpecified, isTileSpecified, parseIdx, rotate90, setCompDef, setDefault, setTileCompVal, setTileDef

Methods inherited from class java.lang.Object

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

Constructor Detail

PrecinctSizeSpec

public PrecinctSizeSpec(int nt,
                        int nc,
                        byte type,
                        IntegerSpec dls)

Creates a new PrecinctSizeSpec object for the specified number of tiles and components.

Parameters:

nt - The number of tiles

nc - The number of components

type - the type of the specification module i.e. tile specific, component specific or both.

dls - Reference to the number of decomposition levels specification

PrecinctSizeSpec

public PrecinctSizeSpec(int nt,
                        int nc,
                        byte type,
                        BlkImgDataSrc imgsrc,
                        IntegerSpec dls,
                        J2KImageWriteParamJava wp,
                        String values)

Creates a new PrecinctSizeSpec object for the specified number of tiles and components and the J2KImageWriteParamJava instance.

Parameters:

nt - The number of tiles

nc - The number of components

type - the type of the specification module i.e. tile specific, component specific or both.

imgsrc - The image source (used to get the image size)

wp - The J2KImageWriteParamJava instance

Method Detail

getPPX

public int getPPX(int t,
                  int c,
                  int rl)

Returns the precinct partition width in component 'n' and tile 't' at resolution level 'rl'. If the tile index is equal to -1 or if the component index is equal to -1 it means that those should not be taken into account.

Parameters:

t - The tile index, in raster scan order. Specify -1 if it is not a specific tile.

c - The component index. Specify -1 if it is not a specific component.

rl - The resolution level

Returns:

The precinct partition width in component 'c' and tile 't' at resolution level 'rl'.

getPPY

public int getPPY(int t,
                  int c,
                  int rl)

Returns the precinct partition height in component 'n' and tile 't' at resolution level 'rl'. If the tile index is equal to -1 or if the component index is equal to -1 it means that those should not be taken into account.

Parameters:

t - The tile index, in raster scan order. Specify -1 if it is not a specific tile.

c - The component index. Specify -1 if it is not a specific component.

rl - The resolution level.

Returns:

The precinct partition width in component 'n' and tile 't' at resolution level 'rl'.