Field Detail

• rois

  protected ROI[] rois

  Array containing the ROIs

• nrc

  protected int nrc

  Number of components

• tileMaskMade

  protected boolean[] tileMaskMade

  Flag indicating whether a mask has been made for the current tile

• roiInTile

  protected boolean roiInTile

Constructor Detail

• ROIMaskGenerator

  public ROIMaskGenerator(ROI[] rois,
                          int nrc)

  The constructor of the mask generator

  Parameters:

  rois - The ROIs in the image

  nrc - The number of components

Method Detail

• getROIs

  public ROI[] getROIs()

  This function returns the ROIs in the image

  Returns:

  The ROIs in the image

• getROIMask

  public 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. The lowest scaling value in the mask for this code-block is returned by the function to be used for modifying the rate distortion estimations.

  Parameters:

  db - The data block that is to be filled with the mask

  sb - The root of the current subband tree

  magbits - The number of magnitude bits in this code-block

  c - Component number

  Returns:

  Whether or not a mask was needed for this tile

• makeMask

  public abstract void makeMask(Subband sb,
                                int magbits,
                                int n)

  This function generates the ROI mask for the entire tile. The mask is generated for one component. This method is called once for each tile and component.

  Parameters:

  sb - The root of the subband tree used in the decomposition

  magbits - The max number of magnitude bits in any code-block

  n - component number

• tileChanged

  public void tileChanged()

  This function is called every time the tile is changed to indicate that there is need to make a new mask