hi_isp_cmos_ldci

Description

Defines the CMOS parameters of LDCI.

Definition

typedef struct {
    hi_bool  enable;
    hi_u8    gauss_lpf_sigma;
    hi_u8    he_pos_wgt[HI_ISP_AUTO_ISO_NUM];
    hi_u8    he_pos_sigma[HI_ISP_AUTO_ISO_NUM];
    hi_u8    he_pos_mean[HI_ISP_AUTO_ISO_NUM];
    hi_u8    he_neg_wgt[HI_ISP_AUTO_ISO_NUM];
    hi_u8    he_neg_sigma[HI_ISP_AUTO_ISO_NUM];
    hi_u8    he_neg_mean[HI_ISP_AUTO_ISO_NUM];
    hi_u16   blc_ctrl[HI_ISP_AUTO_ISO_NUM];
} hi_isp_cmos_ldci;

Members

Member	Description
enable	LDCI enable HI_FALSE: disabled HI_TRUE: enabled
gauss_lpf_sigma	LPF filtering strength. A smaller value indicates that the region that the LDCI module acts on is more localized. Value range: [0x1, 0xFF]
he_pos_wgt	Blending weight curve of the histogram equalization and source image. You can increase the luminance based on the luminance of the source image. The curve is in Gaussian distribution, and the horizontal coordinates indicate luminance. #define HI_ISP_AUTO_ISO_NUM 16
he_pos_sigma	Mean square error (MSE) value of Gaussian distribution in the weight curve of blending local histogram equalization results and source image based on the luminance increment. The value range is [0x1, 0xFF].
he_pos_mean	Expected value of Gaussian distribution in the weight curve of blending local histogram equalization results and source image based on the luminance increment. The value range is [0x0, 0xFF].
he_neg_wgt	Blending weight curve of the histogram equalization and source image. You can decrease the luminance based on the luminance of the source image. The curve is in Gaussian distribution, and the horizontal coordinates indicate luminance.
he_neg_sigma	MSE value of Gaussian distribution in the weight curve of blending local histogram equalization results and source image based on the luminance reduction. The value range is [0x1, 0xFF].
he_neg_mean	Expected value of Gaussian distribution in the weight curve of blending local histogram equalization results and source image based on the luminance reduction. The value range is [0x0, 0xFF].
blc_ctrl	Gain control strength of the dark region in manual mode, which is used to suppress noise in the dark region. The value range is [0x0, 0x1FF].

Parent topic: Data Types