Exposure Values

Abstract

SynonymsSensor’s exposure characterization​DefinitionNumerical values used to specify the relationship between the f-number and the exposure duration which together with ISO sensitivity are important camera settings necessary to form a balanced image with respect to the involved imaging system.IntroductionThe overall quality of captured images usually depends on the exposure of image sensors to light. Digital consumer devices use various ad-hoc strategies and heuristic methods to derive exposure setting parameters [1]. Typically such techniques are completely blind with respect to the specific content of the involved scene. Fully-automatic techniques are often based on average/automatic or more complex matrix/intelligent exposure metering concepts. Others techniques provide photographers with a certain control over the exposure selection. The most important aspect of the exposure duration is to guarantee that the acquired image falls in a good region of the ...