FIG. 9 illustrates an example picture header or picture parameter set (PPS) that encodes a table of chroma QP offsets.
FIG. 10 illustrates a picture header that encodes each entry of a chroma QP offset table predictively.
FIG. 11 illustrates an example coding tree unit that can be in a quantization group that uses an index to retrieve chroma QP offset values from a table in a picture header.
FIG. 12 illustrates a quantization group that uses an index to select an entry in a table of chroma QP offset values.
FIG. 13 conceptually illustrates a process for determining chroma QP values from a video bitstream that uses a table of possible chroma QP offset values to implement additional chroma QP offset specifications.
FIG. 14 illustrates the pseudo code for a picture header that includes a selection for a method of specifying additional chroma QP offset values.
FIG. 15 illustrates the implementation of the pseudo code for a transform unit that is able to specify chroma QP offset values for a quantization group using any of three different methods.
FIG. 16 illustrates example segmentation and categorization of an image.
FIG. 17 conceptually illustrates a process 1700 for analyzing different regions of an image and assigning chroma QP offsets accordingly.
