hi_v200_vpss_sfy

Description

Defines the 3DNR spatial filtering parameters.

Prototype

typedef struct {
    hi_u8  spn6 : 3, sfr  : 5;
    hi_u8  sbn6 : 3, pbr6 : 5;
    hi_u16  srt0 : 5, srt1 : 5, j_mode : 3, de_idx : 3;
    hi_u8  sfr6[4], sbr6[2], de_rate;
    hi_u8  sfs1,  sft1,  sbr1;
    hi_u8  sfs2,  sft2,  sbr2;
    hi_u8  sfs4,  sft4,  sbr4;
    hi_u16  sth1 : 9,  sfn1 : 3, sfn0  : 3, nr_y_en   : 1;
    hi_u16  sth_d1 : 9, reserved : 7;
    hi_u16  sth2 : 9,  sfn2 : 3, k_mode : 3, reserved_1   : 1;
    hi_u16  sth_d2 : 9, reserved_2 : 7;
    hi_u16  sbs_k[32], sds_k[32];
} hi_v200_vpss_sfy;

Members

Member	Description
j_mode	Spatial mixed mode. Value range: [0, 4]
spn6, sbn6	Filter selection in mixed mode. Value range: [0, 5]
pbr6	Blending ratio of spn6 and sbn6 filtering results. This parameter is valid when the mixed mode j_mode is set to 1. Value range: [0, 15]
sfr6[4]	Relative strength after sbn6 and spn6 filtering results are blended. Value range: [0, 31]
de_idx	Reserved. Only the default value 4 is allowed.
de_rate	Reserved. Only the default value 0 is allowed.
srt0, srt1	Reserved. For sfy[0] and sfy[1], this member can only be set to the default value 16. For sfy[2] to sfy[4], this member can only be set to 0.
sfr	Relative strength of the pure spatial filter after the spatial filtering result in SFi or SFk mode is reviewed by four filters. Value range: [0, 31]
sfs1, sfs2, sfs4	Strength of filters 1–4 (The strength of filters 3 and 4 is the same). Value range: [0, 255]
sft1, sft2, sft4	Additional strength of filters 1–4 Value range: [0, 255]
sbr1, sbr2, sbr4, sbr6[2]	Asymmetric strength of filters 1–4 and 6. sbr1, sbr2, sbr4 value range: [0, 255] sbr6 value range: [0,15]
sth1, sth2, sth_d1, sth_d2	Upper and lower edge preserving thresholds. A smaller value indicates that more edges are reserved and noise is more obvious. A larger value indicates that only strong edges are reserved. Value range: [0, 511]
sfn0, sfn1, sfn2	Filter type (ID) for different image features corresponding to sth1 and sth2. Value range: [0, 6]
k_mode	Mode selection for adjusting the NR strength based on the absolute luminance. Valid only for levels 2 and 3. Value range: [0, 3]
nr_y_en	Enables or disables each level of NR. 0: disabled; 1: enabled.
sbs_k[32], sds_k[32]	NR strength table for the relative dark regions divided based on the absolute luminance threshold of the image. Valid only for levels 2 and 3. Value range: [0, 8191]
reserved, reserved_1, reserved_2	Reserved. To ensure compatibility in later versions, use the memset struct for resetting and initialization. Do not explicitly access the reserved field in the code.

Parent topic: VPSS