M.C.A.(Science) (Semester- (CGPA) Examination, 2017
Digital Image Processing Real Time System
Day Date: Tuesday, 25-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions
Q.1 and Q.2 are compulsory
Attempt any Three Questions from Q.3 to Q.7
Figures to the right indicate full marks.
Q.1 Choose the correct alternatives 10
Each bundle of energy is called
Photon Electron E
Pixel Neutron
is to bring out detail that is obscured, or
simply to highlight certain features of interesting an image.
Enhancement Histogram E
Sampling and Quantization All of these
partition an image into its constituent
parts or objects.
Segmentation Classification E
Image Enhancement Restoration
An image of size 1024 x 1024 pixels, in which the intensity of
each pixel is an 8-bit quantity, requires storage
space if the image is not compressed.
1Mb 1Gb E
1Kb 1Byte
Thickening is the morphological dual of thinning and is
defined by the expression.
A B A A B
A B A A B
A B A A B
A B A A B
The opening if image f by structuring element denoted as
E
None of these



Page 2 of 3
Find the FFT of


If we want to resize a 1024 x 768 image to one that is 600
pixels wide with the same aspect ratio as the original image,
what should be the height of the resized image?
500 x 400 600 x 451 E
600 x 768` 600 x 541
In laplacian images light shaded of gray level is represented
by
0 1 E
Positive Negative
10) Fourier spectrum of noises are constant and usually called
Red noise Black noise E
White noise Green noise
State True of False 04
Electromagnetic spectrum is the principal energy source for
image.
Dilation followed by erosion is called Translation.
Two pixels p and q with values from V are 4-adjacent if q is in
the set N4
A notch filter rejects frequencies in predefined neighborhood
about the centre of the frequency rectangle.
Q2 Write a short note on following: 08
Pruning
Order statistic filter
Answer the following: 06
Local histogram processing
What is the digital image processing and application?
Q3 Find the Average and max filter of the following image 07
0 1 2 1
1 2 3 2
2 3 4 3
1 2 3 2
What is the use Hough transforms? Explain with suitable
example.
07
Q4 Explain the opening and closing morphological operation with
suitable example.
07
Page 3 of 3
Consider the same 8 x 8 image that we worked with in region
growing.
07
Let the predicate be threshold Also draw the quad tree. 07
5 6 6 6 7 7 6 6
6 7 6 7 5 5 4 7
6 6 4 4 3 2 5 6
5 4 5 4 2 3 4 6
0 3 2 3 3 2 4 7
0 0 0 0 2 2 5 6
1 1 0 1 0 3 4 4
1 0 1 0 2 3 5 4
Q5 Given below is a 3 x 3 image. What would the value of the
centre pixel change to when this image is passed through
following filter?
07
1 7 5
6 2 3
1 4 2
Arithmetic mean filter
Geometric mean filter
Harmonic mean filter
Explain High pass Frequency Domain Filter in details. 07
Q6 Explain the fundamental image processing steps.
07
Equalize the following histogram.
07
Gray Level 0 1 2 3 4 5 6 7
Number of
pixels
790 1023 850 656 329 25 122 81
Q7 What is pattern and pattern Class? Explain with suitable
example
07
What is descriptor? Explain in details topological descriptor. 07