Efficient image-based soiling quantification using histograms of a checkered pattern
Solar Energy(2022)
Abstract
•Histogram features can be used to obtain black-white brightness ratio, eliminating the need for complex image processing methods.•Unified model allows for more precise soiling loss quantification with camera altitude angle information.
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Key words
Soiling sensor,Image-based soiling quantification,Camera altitude angle correction,Photography,Histogram
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