jj2000.j2k.roi.encoder
Class SubbandROIMask

java.lang.Object
  |
  +--jj2000.j2k.roi.encoder.SubbandROIMask

Direct Known Subclasses:

SubbandRectROIMask

public abstract class SubbandROIMask

extends java.lang.Object

This abstract class describes the ROI mask for a single subband. Each object of the class contains the mask for a particular subband and also has references to the masks of the children subbands of the subband corresponding to this mask.

Field Summary

int	h Height of the subband mask
protected SubbandROIMask	hh The subband masks of the child HH
protected SubbandROIMask	hl The subband masks of the child HL
protected boolean	isNode Flag indicating whether this subband mask is a node or not
protected SubbandROIMask	lh The subband masks of the child LH
protected SubbandROIMask	ll The subband masks of the child LL
int	ulx Horizontal uper-left coordinate of the subband mask
int	uly Vertical uper-left coordinate of the subband mask
int	w Width of the subband mask

Constructor Summary

SubbandROIMask(int ulx, int uly, int w, int h)
The constructor of the SubbandROIMask takes the dimensions of the subband as parameters

Method Summary

SubbandROIMask

getSubbandRectROIMask(int x, int y) Returns a reference to the Subband mask element to which the specified point belongs.

Methods inherited from class java.lang.Object

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

Field Detail

ll

protected SubbandROIMask ll

The subband masks of the child LL

lh

protected SubbandROIMask lh

The subband masks of the child LH

hl

protected SubbandROIMask hl

The subband masks of the child HL

hh

protected SubbandROIMask hh

The subband masks of the child HH

isNode

protected boolean isNode

Flag indicating whether this subband mask is a node or not

ulx

public int ulx

Horizontal uper-left coordinate of the subband mask

uly

public int uly

Vertical uper-left coordinate of the subband mask

w

public int w

Width of the subband mask

h

public int h

Height of the subband mask

Constructor Detail

SubbandROIMask

public SubbandROIMask(int ulx,
                      int uly,
                      int w,
                      int h)

The constructor of the SubbandROIMask takes the dimensions of the subband as parameters

Parameters:

ulx - The upper left x coordinate of corresponding subband

uly - The upper left y coordinate of corresponding subband

w - The width of corresponding subband

h - The height of corresponding subband

Method Detail

getSubbandRectROIMask

public SubbandROIMask getSubbandRectROIMask(int x,
                                            int y)

Returns a reference to the Subband mask element to which the specified point belongs. The specified point must be inside this (i.e. the one defined by this object) subband mask. This method searches through the tree.

Parameters:

x - horizontal coordinate of the specified point.

y - horizontal coordinate of the specified point.