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The digitization process i.e. the digital image has M rows and N columns, requires decisions about values for M, N, and for the number, L, of max gray levels is an integer power of 2 i.e. L = 2k, allowed for each pixel. If we assume that the discrete levels are equally spaced and that they are integers then they are in the interval __________ and Sometimes the range of values spanned by the gray scale is called the ________ of an image.(a) [0, L – 1] and static range respectively(b) [0, L / 2] and dynamic range respectively(c) [0, L / 2] and static range respectively(d) [0, L – 1] and dynamic range respectivelyThe question was posed to me in semester exam.My question is from Representing Digital Images in chapter Digital Image Fundamentals of Digital Image Processing

Answer»

Right answer is (d) [0, L – 1] and dynamic range respectively

The explanation is: In DIGITIZATION process M rows and N columns have to be positive and for the number, L, of discrete gray levels typically an integer power of 2 for each pixel. If we ASSUME that the discrete levels are equally spaced and that they are integers then they lie in the interval [0, L-1] and Sometimes the range of values spanned by the gray scale is called the dynamic range of an IMAGE.


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