AE的相关概念:
1、确认Ev offset正确性是什么意思?
类似于OB offset,对应于LSB中的LV的等级进行补偿校正。
2、target = (THD/Y)*CWV
THD :from parameter
Y :from N% of histogram brightness value.
CWV :centre weighting value
3、ob offset?
optical black光学黑体,即AE算法前对sensor由于温度湿度等原因引起的变化的补偿
4、The ROI of each histogram can be configured separately.
ROI?
LSB,更均匀细致的光学亮度等级,LV1--LV14,参数调整时*10
LCE local contrast enhancement
5、nvram?
non-volatile ram,更方便对图像数据的存储读取
6、Luma noise
noise的一种,又称为Y-noise,与之并列的还有C-noise
7、CWR
Final Main_Target = CWV * Main_THD / MTWV
CWV, central weighted value,中心权重值,the central weighted value of an image with the current ae setting
Final CWV target(CWR), the final ae target after being adjusted accroding to ae target(47), MT/HS/ABL/NS/FACE/TOUCH
MTWV = (Block[1].Y * Weight[1] + Block[2].Y * Weight[2] + … + Block[N].Y * Weight[N]) / (Weight[1] + … + Weight[N