A hierarchical image decoding apparatus, a hierarchical image coding apparatus, and a hierarchical coded data transformation apparatus where the hierarchical image decoding apparatus includes a parameter set decoder that decodes scale adjustment information, and a predictive image generator that generates a predictive image on the basis of the scale adjustment information, and the hierarchical image coding apparatus includes a parameter set encoder that encodes scale adjustment information, and the hierarchical coded data transformation apparatus includes a parameter set adjustor that transforms input hierarchically coded data based on inputted information of interest region, and adjusts scale adjustment information such that inter-layer scales derived from the hierarchically coded data before and after transformation coincide with each other.