Download GTU BE/B.Tech 2018 Winter 7th Sem New 2173210 Digital Image Processing Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem New 2173210 Digital Image Processing Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2173210 Date: 29/11/2018

Subject Name: Digital Image Processing

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Explain block diagram of Image processing 03
(b) Write a short note: smoothing filter in frequency domain. 04
(c) Draw and explain structure of human eye and discuss human vision System. 07

Q.2 (a) List the types of noise and their cause, which can corrupt an image. 03
(b) Write a short note on Edge-detection. 04
(c) What is histogram? Explain histogram equalization algorithm. Write Matlab
code for calculation of histogram and histogram equalization
07
OR
(c) Explain each stage of JPEG image compression. 07
Q.3 (a) Compare lossy and lossless image compression 03
(b) Explain in detail the RGB color model 04
(c) Explain basic steps for filtering of image in frequency domain. What are the
filter mask used for low pass filtering and high pass filtering?
07
OR
Q.3 (a) Explain different digital image file formats. 03
(b) Explain basic concepts of image sampling and quantization. 04
(c) Explain gray level slicing and bit plane slicing. 07
Q.4 (a) Explain Image Degradation ?Restoration model. 03
(b) Explain Image segmentation in short. 04
(c) Explain Low Pass Filter in Spatial domain with suitable Example 07
OR
Q.4 (a) Explain different applications of image processing. 03
(b) Write a short note on Pseudo-coloring. 04
(c) Explain in brief: (i) Contra-harmonic mean filter (ii) Alpha-trimmed mean
filter.
07
Q.5 (a) Explain contrast stretching. 03
(b) Explain edge linking algorithms. 04
(c) Write a MATLAB program to implement various edge detectors: Robert,
sobel, prewitt, canny.
07
OR
Q.5 (a) Explain Region growing in short. 03
(b) Write a MATLAB program to generate and plot histogram of given image and
equalization of histogram
04
(c) Define the following terms with respect to image. Neighbor of a pixel,
adjacency, Resolution of an image, nearest neighbor interpolation,
connectivity, digital image, image negative.
07
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