Hey!! Guys, welcome to our blog. I hope this article is quite useful for you. This is the set of** digital image processing MCQs** or** Multiple choice questions** **on digital image processing.**

If you missed the previous article of Digital Image Processing, then please click here.

## Digital Image Processing MCQs:

**1.) Type of Interpolation where the intensity of 4 neighboring pixels uses to obtain intensity a new location is called ___________**

a) cubic interpolation

b) nearest-neighbor interpolation

c) bilinear interpolation

d) bicubic interpolation

**Answer: **(c).bilinear interpolation

**2) Imaging in geological exploration, industry and medicine uses**

a) audio

b) sound

c) sunlight

d) ultraviolet

**Answer:** (b).sound

**3.) Tomography is the algorithm that uses images**

a) edges

b) slices

c) boundaries

d) illumination

**Answer:** (b).slices

**4.) Major use of gamma rays imaging includes**

a) radar

b) astronomical observations

c) industry

d) lithography

**Answer:** (b).astronomical observations

**5.) How many different frames are required for analyzing a 3D image?**

a) 5

b) 4

c) 6

d) 7

**Answer:** (a)

Explanation: 5 different frames are required for analyzing a 3d image.

- Object
- World
- Camera
- Image
- Pixel

**6.) If f(x,y) is a image function of 2 variables, then the first-order derivative of a one-dimensional function, f(x) is:**

a) f(x+1)-f(x)

b) f(x)-f(x+1)

c) f(x-1)-f(x+1)

d) f(x)+f(x-1)

**Answer: **(a) .f(x+1)-f(x)

Explanation: The first order derivative of a single dimensional function is the difference between f(x) and f(x+1).

i.e, ∂f/∂x=f(x+1)-f(x).

**7.) It is not a the source of images**.

a) mecatronic

b) acoustic

c) ultrasonic

d) electronic

**Answer:** (a).mecatronic

**8.) Which frame uses for co-relating objects in a 3 dimensional world**.

a) visible

b) gamma

c) x-rays

d) ultraviolet

**Answer:** (c).x-rays

**9.) ** What is use of Camera coordinate frame?

**Answer: **The Camera coordinate frame is used to relate the objects wrt the camera.

**10.) A pixel in the digital image processing can also be defined as**

a) The tiniest division the CCD array is also known as a pixel.

b) The largest division the CCD array is also known as the pixel.

c) both a) and b)

d) None of the above

**Answer: a)**

**11.) Which of the options fails to work on dark intensity distributions?**

a) The Laplacian Transform

b) Gaussian Transform

c) The Histogram Equalization

d) Power-law Transformation

**Answer:** (c).Histogram Equalization

**12.) The typical size comparable in quality to monochromatic TV image is of size.**

a) 256 X 256

b) 512 X 512

c) 1920 X 1080

d) 1080 X 1080

**Answer:** (b).512 X 512

**13.) **What is the Calculating the size of image formation?

**a) **Y=f/z**b) **Y= z/f**c) **None of the above**d)** Y = -F/Z

**Answer:** (d)

**14.) What is the formula for the calculation of total number of combinations of bit**

a) (2)^bp

b)(2)^xyz

c)None of the above

d)(2)^bpp

**Answer: **(d).

**15.) Which method is used to generate a processed image that has a specified histogram?**

a) linearization of a histogram

b) equalization of a histogram

c) The Histogram matching

d) Histogram processing

**Answer:** (c)

** 16.)What does “eliminated” refer to in median filter?**

a) Force to the average intensity of neighbors

b) Force to median intensity of neighbors

c) Eliminate median value of pixels

d) None of the Mentioned

**Answer:** (b).Force to median intensity of neighbors

Explanation: Force refers to forcing to median intensity of neighbors.

**17.) The white color in the image processing can be calculated as**…

a) White color = (2)^bpp-1

b) White color = (2)^bpp

c) White color = (3)^bpp-1

d) None of the mentioned

**Answer:** (a)

**18.)In 4-neighbors of a pixel p, how far are each of the neighbors located from p?**

a) one pixel apart

b) four pixels apart

c) alternating pixels

d) none of the Mentioned

**Answer:** (a).one pixel apart

**19.) The size of an image depends upon which three things**?

a) Number of rows

b) Number of columns

c) Number of bits per pixel

d) all of these

**Answer:** (d)

**20). **While Zooming, In order to perform a gray-level assignment for any point in the overlay, we assign its grey level to the new pixel in the grid its closest pixel in the original image. What’s this method of grey-level** assignment called?**

a) Neighbor Duplication

b) Duplication

c) Nearest neighbor Interpolation

d) None of the mentioned

**Answer:** (c).Nearest neighbor Interpolation

**21.)The transformation s = T(r) produces a gray level s for each pixel value r of the input image. Then, if the T(r) is monotonically increasing in interval 0 ≤ r ≤ 1, what does it signify?**

a) It guarantees the existence of the inverse transformation

b) It is needed to restrict the producing of some inverted gray levels in the output

c) It ensures that the gray output level and the input gray level will be in the same range

d) All of the mentioned

**Answer:** (b). It is needed to restrict the producing of some inverted gray levels in the output

**22.)The transformation formula T (r**_{k}) = ∑^{k}_{(j=0)} nj /n, k = 0, 1, 2, …, L-1, where L is maximum gray value possible and r-k is the kth gray level, is called _______

_{k}) = ∑

^{k}

_{(j=0)}nj /n, k = 0, 1, 2, …, L-1, where L is maximum gray value possible and r-k is the kth gray level, is called _______

a) Histogram linearization

b) Histogram equalization

c) All of the mentioned

d) None of the mentioned

**Answer:** (c).All of the mentioned

**23.) What is the expanded form of JPEG?**

a) Joint Photographic Expansion Group

b) Joint Photographic Experts Group

c) joint Photographs Expansion Group

d) Joint Photographic Expanded Group

**Answer:** (b).Joint Photographic Experts Group

**24.) Wavelength of visible green ranges from**

a) 0.52-0.70

b) 0.52-0.62

c) 0.53-0.60

d) 0.52-0.60

**Answer:** (d).0.52-0.60

**25.) Remote sensing is an application of**

a) gamma rays

b) x-rays

c) visible and infrared

d) ultraviolet

**Answer:** (c).visible and infrared

I*n this article of digital image processing, we presented some of the Digital Image Processing* MCQs.

*I hope it will help*you with

*your exams or interview questions.*

*So, please stay with us and give suggestions or suggest us for new topics and your requirements in the *comment section or contact us page, For now*, **thank you for being here 🙂*

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