Jawaharlal Nehru Technological University Hyderabad 2006-1st Year B.Tech Electronics and Computer Engineering (ECM) IV Sem (NR410507) -Sup'06 - Digital Speech & Image Processing - Question Paper
Code No: NR410507 NR
IV B.Tech I Semester Supplementary Examinations, November 2006
DIGITAL SPEECH & IMAGE PROCESSING
( Common to Computer Science & Engineering and Electronics &
Computer Engineering)
Time: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks
1. (a) discuss in detail about various colour co-ordinate systems.
(b) define the chromaticity diagram. [8+8]
2. (a) discuss the log and inverse log transformations. For what type of image
enhancement, these transformations are suitable.
(b) define the general form of power-law transformation function. elaborate its
application. [10+6]
3. explain the role of various convolution windows (filters) in the image enhancement.[16]
4. discuss different discontinuity detection methods in detail with suitable examples.[16]
5. A binary image contains straight lines oriented horizontally, vertically, at 450 and
at -450. provide a set of 3X3 masks that can be used to detect 1-pixel-long breaks in
these lines. [16]
6. (a) With necessary diagrams discuss the operation of opening.
(b) Let A and B are 2 sets in Z2 . Show that
A_B = \(A)-b
b two B
[8+8]
7. (a) What do you mean by compression? Briefly discuss its requirement.
(b) Differentiate lossy compression and lossless compression. Mention their applications.
(c) What do you mean by improved Gray Scale Quantization?
(d) discuss the fidelity criteria in image compression. [3+5+4+4]
8. (a) discuss about
i. slope overload
ii. granular noise.
(b) List out the advantages and drawbacks of various kinds of lossy compression
techniques. [8+8]
Code No: NR410507 NR
IV B.Tech I Semester Supplementary Examinations, November 2006 DIGITAL SPEECH & IMAGE PROCESSING ( Common to Computer Science & Engineering and Electronics &
Computer Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions All Questions carry equal marks
1. (a) Explain in detail about different colour co-ordinate systems.
(b) Describe the chromaticity diagram. [8+8]
2. (a) Explain the log and inverse log transformations. For what kind of image
enhancement, these transformations are suitable.
(b) Describe the general form of power-law transformation function. What are its application. [10+6]
3. Discuss the role of different convolution windows (filters) in the image enhancement.
[16]
4. Explain various discontinuity detection methods in detail with suitable examples.
[16]
5. A binary image contains straight lines oriented horizontally, vertically, at 450 and at 450. Give a set of 3X3 masks that can be used to detect 1-pixel-long breaks in these lines. [16]
a) With necessary diagrams explain the operation of opening.
6.
7.
b) Let A and B are two sets in Z2 . Show that (A)-b [8+8]
a) What do you mean by compression? Briefly explain its requirement.
b) Differentiate lossy compression and lossless compression. Mention their applications.
c) What do you mean by improved Gray Scale Quantization?
d) Explain the fidelity criteria in image compression. [3+5+4+4]
a) Explain about
8.
i. slope overload
ii. granular noise.
(b) List out the advandages and drawbacks of different types of lossy compression techniques. [8+8]
k k k k k
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| Earning: Approval pending. |
