Predicting lux values from RGB images

Are there any methods to predict lux values from an RGB image?

I have a dataset of RGB images and lux values recorded using a luxmeter that can act as ground truth. My task is to build a model (I assume a CNN has the best shot at this) that can predict the lux value given an RGB image.

Does anyone know of research / existing network architectures created for this purpose?

I believe the proper terminology would be: CNNs for predicting illuminance from RGB images

no. a dataset doesn’t help at all.