The constructor of the mask generator

Number of components

Array containing the ROIs

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

This function returns the ROIs in the image

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.

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.

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