BCA 7th Semester
Image Processing Board Question Paper 2023

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Tribhuvan university

Faculty of Humanities & Social Science
OFFICE OF THE DEAN

2023

Bachelor In Computer Application

Course Title: Image Processing

Code No: CACS

Semester:VII

Full Marks:60 Pass Marks:24 Time:3 hours

Candidates are required to answer the question in their own words as far as possible.

Group A
Group B
Attempt any SIX question.
[6x5=30]
2.

Explain sampling and quantization with reference to digital image processing, further also calculate the size of image which is represented by 512 colors with x and y coordinates given as 1028*1028.

3.

With the help of mathematical expression explain the effect of following noises on image and suggest filters to remove them
a) Gaussian noise
b) Salt and Pepper noise

4.

From the given gray level values histogram, enhance the image using histogram equalization

Gray Levels01234567
No of pixels3005001000150020015005500

5.

Differentiate between image restoration and image enhancement.

6.

Define ideal low pass filter. Under what condition does Butterworth low pass filter become an ideal low pass filter.

7.

Explain about image compression standards

8.

Write short notes on:
a) Feature Extraction
b) Mach Band effect

Group C

Attempt any TWO questions

[2x10=20]
9.

Define DFT and EFT. Prove that both the 2-D continuous and discrete Fourier transforms are linear operations.

10.

Define basic relationship between pixels. Draw the functional block diagram of image compression system and explain the purpose of each block.

11.

Explain region growing, splitting and merging with suitable example.