Exploring affordable methods for generating luminance maps for indoor daylit environments
The advancements in the High Dynamic Range (HDR) imagery techniques have made luminance-based mapping of light environments possible. Luminance maps are often used in the field of lighting to evaluate potential discomfort glare perception from the occupant’s vantage point. High Dynamic Range photography can be used to generate luminance maps. However, it is a very expensive process because of the high-end cameras, training, and expertise involved in generating these luminance maps.
This project explores affordable methods to generate luminance maps for the indoor day-lit spaces by comparing those generated using a high-end DSLR camera (24 MP with CMOS sensor, costing ~INR 80,000) and an inexpensive camera (12.3 MP with Sony IMX477R sensor, costing < INR 10,000).
