public abstract class ROIMaskGenerator extends Object
The values are calculated from the scaling factors of the ROIs. The values with which to scale are equal to u-umin where umin is the lowest scaling factor within the block. The umin value is sent to the entropy coder to be used for scaling the distortion values.
RectROIMaskGenerator
,
ArbROIMaskGenerator
Modifier and Type | Field and Description |
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protected int |
nrc
Number of components
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protected boolean |
roiInTile |
protected ROI[] |
rois
Array containing the ROIs
|
protected boolean[] |
tileMaskMade
Flag indicating whether a mask has been made for the current tile
|
Constructor and Description |
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ROIMaskGenerator(ROI[] rois,
int nrc)
The constructor of the mask generator
|
Modifier and Type | Method and Description |
---|---|
abstract boolean |
getROIMask(DataBlkInt db,
Subband sb,
int magbits,
int c)
This functions gets a DataBlk with the size of the current code-block
and fills it with the ROI mask.
|
ROI[] |
getROIs()
This function returns the ROIs in the image
|
abstract void |
makeMask(Subband sb,
int magbits,
int n)
This function generates the ROI mask for the entire tile.
|
void |
tileChanged()
This function is called every time the tile is changed to indicate
that there is need to make a new mask
|
protected ROI[] rois
protected int nrc
protected boolean[] tileMaskMade
protected boolean roiInTile
public ROIMaskGenerator(ROI[] rois, int nrc)
rois
- The ROIs in the imagenrc
- The number of componentspublic ROI[] getROIs()
public abstract boolean getROIMask(DataBlkInt db, Subband sb, int magbits, int c)
db
- The data block that is to be filled with the masksb
- The root of the current subband treemagbits
- The number of magnitude bits in this code-blockc
- Component numberpublic abstract void makeMask(Subband sb, int magbits, int n)
sb
- The root of the subband tree used in the decompositionmagbits
- The max number of magnitude bits in any code-blockn
- component numberpublic void tileChanged()
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