kdu_subband::get_K_max_prime

Returns the maximum number of magnitude bit-planes for the subband, including any ROI adjustments. To avoid ROI adjustments, use get_K_max.

K_max_prime - K_max is the ROI upshift value, U, which should either be 0 or a value sufficiently large to ensure that the foreground and background regions can be separated. The upshift is determined by the Rshift attribute of the rgn_params parameter class.