Hello, I’m working on a project where I need to identify colors. Currently, I’m using 4 NeoPixel LEDs for illumination, but in the resulting image, the edges appear darker while the center is brighter. Is there a way to solve this in the code?
Hi, not at the moment. It would be better to try to make the illumination flat.
The OV7725 does have some lens shading control, but, it’s not easy usable.
You can also increase the camera exposure which will result in a higher quality image. See set_auto_exposure(). Disable it and manually increase the exposure_us value.
Thank you, i gonna try