Question Paper Code : 20554
B.E./B.Tech. DEGREE EXAMINATIONS, NOVEMBER/DECEMBER 2023.
Fifth Semester
Electronics and Communication Engineering
CEC 366 — IMAGE PROCESSING
(Common to : Electronics and Telecommunication Engineering)
(Regulations 2021)
Answer ALL questions.
PART A — (10 × 2 = 20 marks)
- 1.
What is meant by Image Acquisition?
- 2.
What is the function of an image sensor?
- 3.
What is meant by Gray-Level transformation?
- 4.
What is spatial filtering?
- 5.
Differentiate between image enhancement and restoration.
- 6.
What is inverse filtering?
- 7.
Define Thresholding.
- 8.
What is the objective of image segmentation?
- 9.
Define texture.
- 10.
What is meant by image compression?
PART B — (5 × 13 = 65 marks)
- 11.(a)
What are the components of digital image processing system? Explain the function of each component in detail.
- Or
- (b)
Discuss in detail about relationships between pixels.
- 12.(a)
Enumerate Discrete Fourier Transform in detail.
- Or
- (b)
Explain about smoothing and sharpening spatial filtering in detail.
- 13.(a)
How image restoration is performed using wiener filtering? Explain in detail.
- Or
- (b)
Explain in detail about various Mean filters.
- 14.(a)
Briefly discuss about edge linking via Hough transform.
- Or
- (b)
Explain any one of the region based image segmentation technique in detail Mention two applications of image segmentation.
- 15.(a)
What regional descriptors are used to represent an image? Explain in detail.
- Or
- (b)
Describe in detail about Patterns and Pattern classes.
PART C — (1 × 15 = 15 marks)
- 16.(a)
Compare and Correlate various image restoration filters with an example and algorithms.
- Or
- (b)
Discuss homomorphic filtering and explain in detail how it is used in correcting non-uniform illumination in images.