Representing Digital Images MCQ

Test your knowledge with important Representing Digital Images MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Representing Digital Images MCQs at Bissoy

• In digital image of M rows and N columns and L discrete gray levels, calculate the bits required to store a digitized image for M=N=32 and L=16.
  ক

  16384

  খ

  4096

  গ

  8192

  ঘ

  512
• Validate the statement “When in an Image an appreciable number of pixels exhibit high dynamic range, the image will have high contrast.”
  ক

  True

  খ

  False
• An image whose gray-levels span a significant portion of gray scale have __________ dynamic range while an image with dull, washed out gray look have __________ dynamic range.
  ক

  Low and High respectively

  খ

  High and Low respectively

  গ

  Both have High dynamic range, irrespective of gray levels span significance on gray scale

  ঘ

  Both have Low dynamic range, irrespective of gray levels span significance on gray scale
• After digitization process a digital image with M rows and N columns have to be positive and for the number, L, max gray levels i.e. an integer power of 2 for each pixel. Then, the number b, of bits required to store a digitized image is:
  ক

  b=M*N*k

  খ

  b=M*N*L

  গ

  b=M*L*k

  ঘ

  b=L*N*k
• 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. and static range respectively b) and dynamic range respectively c) and static range respectively d) and dynamic range respectively
  ক

  and static range respectively

  খ

  0, L – 1

  গ

  0, L – 1

  ঘ

  0, L – 1
• 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. There are no requirements on M and N, other than that M and N have to be positive integer. However, the number of gray levels typically is
  ক

  An integer power of 2 i.e. L = 2k

  খ

  A Real power of 2 i.e. L = 2k

  গ

  Two times the integer value i.e. L = 2k

  ঘ

  None of the mentioned
• 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 gray levels allowed for each pixel. The value M and N have to be:
  ক

  M and N have to be positive integer

  খ

  M and N have to be negative integer

  গ

  M have to be negative and N have to be positive integer

  ঘ

  M have to be positive and N have to be negative integer
• Let Z be the set of real integers and R the set of real numbers. The sampling process may be viewed as partitioning the x-y plane into a grid, with the central coordinates of each grid being from the Cartesian product Z2, that is a set of all ordered pairs (zi, zj), with zi and zj being integers from Z. Then, f(x, y) is a digital image if (x, y) are integers from Z2 and f is a function that assigns a gray-level value (that is, a real number from the set R) to each distinct coordinate pair (x, y). What happens to the digital image if the gray levels also are integers?
  ক

  The Digital image then becomes a 2-D function whose coordinates and amplitude values are integers

  খ

  The Digital image then becomes a 1-D function whose coordinates and amplitude values are integers

  গ

  The gray level can never be integer

  ঘ

  None of the mentioned
• Let Z be the set of real integers and R the set of real numbers. The sampling process may be viewed as partitioning the x-y plane into a grid, with the central coordinates of each grid being from the Cartesian product Z2, that is a set of all ordered pairs (zi, zj), with zi and zj being integers from Z. Then, f(x, y) is said a digital image if:
  ক

  (x, y) are integers from Z2 and f is a function that assigns a gray-level value (from Z) to each distinct pair of coordinates (x, y)

  খ

  (x, y) are integers from R2 and f is a function that assigns a gray-level value (from R) to each distinct pair of coordinates (x, y)

  গ

  (x, y) are integers from R2 and f is a function that assigns a gray-level value (from Z) to each distinct pair of coordinates (x, y)

  ঘ

  (x, y) are integers from Z2 and f is a function that assigns a gray-level value (from R) to each distinct pair of coordinates (x, y)
• The resulting image of sampling and quantization is considered a matrix of real numbers. By what name(s) the element of this matrix array is called __________
  ক

  Image element or Picture element

  খ

  Pixel or Pel

  গ

  All of the mentioned

  ঘ

  None of the mentioned
• Assume that an image f(x, y) is sampled so that the result has M rows and N columns. If the values of the coordinates at the origin are (x, y) = (0, 0), then the notation (0, 1) is used to signify :
  ক

  Second sample along first row

  খ

  First sample along second row

  গ

  First sample along first row

  ঘ

  Second sample along second row