What is the maximum supported depth for "dynamic_pixel_bit_depth" in the camera driver?

Robotics & Edge Computing Jetson Systems Jetson Thor
1

HI NVIDIA,

DRIVE OS Version: jetpack6.0

I am developing the HDR mode driver for the imx735. In the device tree, I use “dynamic_pixel_bit_depth = “24””; csi_pixel_bit_depth = “12”; It was found that the image appeared overly green, indicating an abnormality.

I would like to inquire about the maximum value of dynamic_pixel_bit_depth, and at the same time, what details need to be paid attention to when implementing the HDR function and achieving inverse pwl?

3

Hi @2309200691,

Just out of curiosity, how green is the image?
Usually that could also be sign of bad white balance.

best,
Andrew
Embedded Software Engineer at ProventusNova

5

hello 2309200691,

just curious.. what’s the Jetson platform and the exact software release you’re working with?
for instance, is it JetPack SDK | NVIDIA Developer or NVIDIA DRIVE OS | NVIDIA Developer?

FYI, the maximum SDR we’re supported is Raw 16-bits,
it’s PWL-WDR to have wider supports, however, although PWL-WDR supported is Raw 20-bits. ISP will take maximum 16-bits input, PWL compressed/de-compress internally as 20-bit before processing.