Abstract
Digital numbers (DNs) are what we get after purchasing data from the data providers (Colwell et al. 1983; Liang 2004). DNs are the scaled integers from quantification that is not a physical quantity. Most quantization systems in remote sensing are linear having 6–12 bits. The DN can be any integer in this set:
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Tang, H., Li, ZL. (2014). Basic Theory of Quantitative Remote Sensing. In: Quantitative Remote Sensing in Thermal Infrared. Springer Remote Sensing/Photogrammetry. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-42027-6_2
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