Image information encoding and decoding method
摘要
說(shuō)明書(shū)
In the example shown in Table 18, when the value of sao_flag is 1, it indicates that the SAO may be used for the luma signal. When the value of sao_flag is 0, it indicates that the SAO is not used for the luma signal.
When the value of sao_flag_Cb is 1, it indicates that the SAO may be used for the Cb signal. When the value of sao_flag_Cb is 0, it indicates that the SAO is not used for the Cb signal.
When the value of sao_flag_Cr is 1, it indicates that the SAO may be used for the Cr signal. When the value of sao_flag_Cr is 0, it indicates that the SAO is not used for the Cr signal.
Referring to Table 18, x1 and x2 in sao_offset_param(x1, x2, x3, x4) specify the position of a region to which sao_offset_param is applied, x3 specifies the depth of the region to which sao_offset_param is applied. And x4 indicates that which of luma, Cr, and Cb sao_offset_param is for.
When all the values of sao_flag, sao_flag_cr, and sao_flag_cb are 1, the SAO is applied to luma, Cr and Cb and necessary parameters such as sao_split_param and sao_offset_param may be indicated. The SAO parameters may be transmitted as in the examples illustrated in
Table 18 schematically shows an example of a syntax structure when independent partitions are used for the luma pixels and the chroma pixels.
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