hi_isp_awb_sensor_default
Description
Defines the initialization parameters for the AWB algorithm library.
Definition
typedef struct {
hi_u16 wb_ref_temp;
hi_u16 gain_offset[HI_ISP_BAYER_CHN_NUM];
hi_s32 wb_para[HI_ISP_AWB_CURVE_PARA_NUM];
hi_u16 golden_rgain;
hi_u16 golden_bgain;
hi_u16 sample_rgain;
hi_u16 sample_bgain;
hi_isp_awb_agc_table agc_tbl;
hi_isp_awb_ccm ccm;
hi_u16 init_rgain;
hi_u16 init_ggain;
hi_u16 init_bgain;
hi_u8 awb_run_interval;
hi_u16 init_ccm[HI_ISP_CCM_MATRIX_SIZE];
} hi_isp_awb_sensor_default;
Members
Member |
Description |
|---|---|
wb_ref_temp |
Color temperature for correcting the static white balance. The value range is [0, 0xFFFF]. |
gain_offset |
Gain array of the R, Gr, Gb, and B color channels for static white balance. The value range is [0, 0xFFFF]. HI_ISP_BAYER_CHN_NUM defines the number of Bayer data channels. The value is 4. |
wb_para |
White balance parameter array provided by the correction tool. The value range is [0, 0xFFFFFFFF]. HI_ISP_AWB_CURVE_PARA_NUM defines the number of Planck curve parameters for self-developed AWB calibration. The value is 6. |
golden_rgain |
G/R value output by the online calibration of the golden sample. |
golden_bgain |
G/B value output by the online calibration of the golden sample. |
sample_rgain |
G/R value output by the online calibration of the current sample. |
sample_bgain |
G/B value output by the online calibration of the current sample. |
agc_tbl |
Whether the data of the structure is valid. The value range is [0, 1]. |
Interpolation array for dynamically adjusting the saturation based on the gain. The value range is [0, 255]. |
|
ccm |
Number of current CCM groups. Value range: [3, 7] |
CCM and color temperature value under different color temperatures. |
|
init_rgain |
Initial R channel gain of the white balance when the ISP starts. |
init_ggain |
Initial G channel gain of the white balance when the ISP starts. |
init_bgain |
Initial B channel gain of the white balance when the ISP starts. |
awb_run_interval |
AWB operating frequency when the ISP starts. Value range: [0x1, 0xFF] |
init_ccm |
Initial CCM value array when the ISP starts. HI_ISP_CCM_MATRIX_SIZE defines the number of CCM parameters. The value is 9. |
Precautions
The reference color temperature is the environmental color temperature after static white balance correction. The actual value measured by the colorimeter needs to be provided.