AM62A7: WDR :exposure time and analog gain always min value

meng Ke

Intellectual 940 points

Part Number: AM62A7

Tool/software:

Hi TI Experts

I try to change properties file (My sensor is ox03c10)

I adjusted GAMMA_PRE from 50 to 90, and the image brightness improved significantly, allowing me to see objects.

However, the colors are very green, and the logs show that the exposure time and analog gain are always at their minimum values.

Is there something wrong with my settings?

SENSOR_ID 219
PRJ_DIR ../imx219_output
SENSOR_NAME imx219
SENSOR_DCC_NAME IMX219

SENSOR_WIDTH 1920
SENSOR_HEIGHT 1280

# 0=RGGB; 1=GRBG; 2=GBRG; 3=BGGR, 4=MONO
COLOR_PATTERN 3

# sensor mode: 0 for linear (no decompanding), 1 for WDR (decompanding)
WDR_MODE 1

# raw sensor image BIT_DEPTH: it may be 8, 10, or 12 for linear sensors; typically 12 for WDR mode because of companding
BIT_DEPTH 12

# WDR BIT_DEPTH: WDR raw sensor image bitdepth after decompanding, typically 20 or 24
WDR_BIT_DEPTH 20

# WDR decompanding knee points (comma separated without spaces in between)
WDR_KNEE_X 0,273,546,819,1092,1365,1638,1911,2184,2457,2730,3003,3276,3549,3822,4095,65535
WDR_KNEE_Y 0,69905,139810,209715,279620,320000,340000,350000,360000,370000,380000,390000,400000,409240,559241,1048575,1048575

#WDR_KNEE_X 0,512,1408,2176,4095,65535
#WDR_KNEE_Y 0,2048,16384,65536,1048063,1048063

# Sensor black level to subtract before decompanding (for linear sensors only and some Sony WDR sensors)
BLACK_PRE  64

# Sensor black level to subtract after decompanding (for most WDR sensors and all linear sensors)
BLACK_POST  0

# GAMMA value for compressing 20/24-bit WDR raw to 16-bit ISP internal
# typically around 50 (0.5) for 24-bit WDR sensors and 70 (0.7) for 20-bit sensors
GAMMA_PRE 90

# LSB location for H3A input bit range (from bit-H3A_INPUT_LSB to bit-H3A_INPUT_LSB+9) 
H3A_INPUT_LSB 0

# Choose the default gamma curve used for YUV output: 0 for BT709, 1 for a high contrast gamma curve
YUV_GAMMA 1