Reg No.:

Max. Marks: 100

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04000CS463092001 Pages: 2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Examination (Regular and Supplementary), December 2020

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Course Code: CS463
Course Name: DIGITAL IMAGE PROCESSING

PARTA
Answer all questions, each carries 4 marks.
Differentiate city block distance and chessboard distance.
List some applications of digital image processing.
Define DCT. Write the properties of DCT.
CRT devices would produce images that are darker than intended. How it is
rectified? Explain.
Write short notes on max and min filters.
Differentiate Ideal low pass filter and Gaussian low pass filter.
Differentiate image segmentation based on thresholding and image
segmentation based on region growing techniques.
Explain about Prewitt and Sobel masks for detecting edges.
Differentiate erosion and dilation.
Define shape number.
PART ‏تا‎
‎Answer any two full questions, each carries 9 marks.
What is a digital image? How to represent a digital image?
Explain the fundamental steps in digital image processing with the help of a
neat diagram.
What is unitary transform? Write the properties of unitary transforms. Prove

that 4 x 4 DFT matrix is unitary.
Compute the Hadamard transform of the image ۶ 3

The sample of a function is f(x)={2,3,4,4}. Find the DFT coefficients of this
function.

Consider the image segment shown.

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Duration: 3 Hours

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