A method of performing inverse dynamic range adjustment on video data, the method comprising: receiving an encoded video bitstream comprising video data; decoding the video data; decoding at least one syntax element from the encoded video bitstream, the at least one syntax element indicating adjustment information specifying how the inverse dynamic range adjustment has to be applied to the video data, and wherein the adjustment information includes a global offset value for at least one color component, c, wherein the global offset value applies to each of a number of partitions, i, into which a range of values of the at least one color component, c, of the video data is partitioned for the inverse dynamic range adjustment, wherein the adjustment information further includes information indicative of a local offset value and a local scale value for each partition, i, of the at least one color component, c; and performing the inverse dynamic range adjustment on the video data in accordance with the adjustment information to generate inverse adjusted component values, wherein performing the inverse dynamic range adjustment includes generating, for each partition, i, of at least one color component, c, inverse adjusted component values according to the global offset value, the local offset value and the local scale value associated with the partition, i, of the at least one color component, c, wherein: the global offset value is used to derive the offset value that is used to map the smallest value of the valid input data range for the at least one color component, c, to a corresponding inverse adjusted component value; and the local scale value and the local offset value for the partition, i, of the at least one color component, c, are used to convert values of the at least one color component, c, in the partition, i, to corresponding inverse adjusted component values. receiving an encoded video bitstream comprising video data; decoding the video data; decoding at least one syntax element from the encoded video bitstream, the at least one syntax element indicating adjustment information specifying how the inverse dynamic range adjustment has to be applied to the video data, and wherein the adjustment information includes a global offset value for at least one color component, c, wherein the global offset value applies to each of a number of partitions, i, into which a range of values of the at least one color component, c, of the video data is partitioned for the inverse dynamic range adjustment, wherein the adjustment information further includes information indicative of a local offset value and a local scale value for each partition, i, of the at least one color component, c; and performing the inverse dynamic range adjustment on the video data in accordance with the adjustment information to generate inverse adjusted component values, wherein performing the inverse dynamic range adjustment includes generating, for each partition, i, of at least one color component, c, inverse adjusted component values according to the global offset value, the local offset value and the local scale value associated with the partition, i, of the at least one color component, c, wherein: the global offset value is used to derive the offset value that is used to map the smallest value of the valid input data range for the at least one color component, c, to a corresponding inverse adjusted component value; and the local scale value and the local offset value for the partition, i, of the at least one color component, c, are used to convert values of the at least one color component, c, in the partition, i, to corresponding inverse adjusted component values. the global offset value is used to derive the offset value that is used to map the smallest value of the valid input data range for the at least one color component, c, to a corresponding inverse adjusted component value; and the local scale value and the local offset value for the partition, i, of the at least one color component, c, are used to convert values of the at least one color component, c, in the partition, i, to corresponding inverse adjusted component values.