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kdu_roi_node * acquire_node( int band_idx)
[Declared in "../coresys/common/kdu_roi_processing.h"]
Provides an interface through which a particular subband's ROI information may be accessed. Note carefully that the returned node must be released PRIOR TO DESTROYING the current object.
Must be one of LL_BAND, LH_BAND, HL_BAND or HH_BAND; it plays the same role as the band_idx argument to kdu_resolution::access_subband.