Light and Color
02
The emerging field of high dynamic range (HDR) imaging is directly linked to diverse existing disciplines such as radiometry, photometry, colorimetry, and color appearance—each dealing with specific aspects of light and its perception by humans [11]. In this chapter, we discuss all aspects of color that are relevant to HDR imaging. This chapter is intended to provide background information that forms the basis of later chapters.
2.1 RADIOMETRY
The term “scene” indicates either an artificial environment or a real environment that may become the topic of an image. Such environments are occupied with objects that each have the capability to reflect light. The ability of materials to reflect light is called “reflectance.”
Radiometry ...
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