HDR image with pivariety camera IMX462

Raspberry Pi Cameras
1

  1. Where did you get the camera module(s)?
    UCTRONICS

  2. Model number of the product(s)?
    arducam-pivariety 10-000c

  3. What hardware/platform were you working on?
    RPI zero W 2

  4. Instructions you have followed. (link/manual/etc.)
    Compile driver and device tree: How to install and build Raspberry Pi Kernel Driver for Arducam Pivariety Camera
    Compile libcamera: base on libcamera commit: 2f75a7e5b8c6258dc12e9e3128cb30133f66b4f9

  5. What help do you need?

Hello,
My camera work just fine and I’m very happy with the low light result.

BUT I need to produce HDR image which should be a functionality of the IMX462 sensor.
Typically, I have image with some bright part and some dark part:

  • surveillance at night with some part of the scene illuminated by a very directive light
  • dark indoor image with a large window on a brightly lit outdoor.

The camera fail to produce usable images for those scenarios.
Sony claims that IMX462 support multiple exposure and DOL HDR but I suppose that the arducam driver needs to support it.

Thank you for any help or information

2

The problem is that the Raspberry Pi’s ISP does not support HDR, and even though the IMX462 supports HDR output, the Raspberry Pi’s ISP cannot handle it. .