Photographyis theart,science, and practice of creating durableimagesby recordinglightor otherelectromagnetic radiation, either chemically by means of a light-sensitive material such asphotographic film, or electronically by means of animage sensor.[1]Typically, alensis used tofocusthe light reflected or emitted from objects into areal imageon the light-sensitive surface inside acameraduring a timedexposure. The result in an electronic image sensor is anelectrical chargeat eachpixel, which iselectronically processedand stored in adigital image filefor subsequent display or processing