I am working on the Arducam OV9281 MIPI 1MP Monochrome With M12 using a Raspberry Pi 4.
The camera is fully working indoor, while I am facing some issues outdoor due to sunlight. The resulting image is always overexposed, i.e. almost totally white.
I have tried to set the exposure to the minimum as well as the gain, but nothing changed.
Perhaps a polarizing filter would be useful for such an application, but I have found nothing among Arducam products.
Do you have any suggestion on how to address this issue?
Indoor with autoexposure enabled. Light is constant over the image. Image quality is good.
Indoor with autoexposure enabled. Only the windowed door is overexposed due to the daylight outside. Image quality is what we expect.
Outdoor with autoexposure enabled. Although it is not a backlight picture, we can appreciate details only where the shadow is present.
We have tried also to manually set exposure to the minimum value instead of using autoexposure, but no change has occurred. That’s why we thought to a polarizing filter.
Indoor with autoexposure enabled. With a constant light over the image, the image quality is excellent.
Indoor with autoexposure enabled. The part of the image with the windowed door is overexposed, but in this case this result was expected.
Outdoor with autoexposure enabled. Although it is not a backlight image, most of it is overexposed. We can appreciate details only where there is shadow. We have also tried to manually set the exposure to the minimum value, but no change has occurred. This is why we thought to the polarizing filter.
