Table 4.

Results of the real and estimated LIA at different shooting angles. The environment around the plant includes the scene around the plant and the light of the environment. The average error of LIA measurements varies less in dissimilar environments. As a practical validation group, LIA measurements in outdoor environments are shown in bold.

Group	Environment			Shooting angle	Average error
	Surroundings	Light intensity	Temperature
1	Indoors	315	18∘C	23.40	10.25
2	Outdoors	5,416	16∘C	25.60	10.21
3	Indoors	280	18∘C	29.35	8.07