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Posted Date: 02 Jun 2009 Posted By: Sunil Reddy Member Level: Platinum
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2007 Jawaharlal Nehru Technological University Computer Science & Engineering IV B.Tech. I-Semester Regular Examinations, February - 2007 DIGITAL SPEECH AND IMAGE PROCESSING Question paper
Code No: 410507
IV B.Tech. I-Semester Regular Examinations, February - 2007
DIGITAL SPEECH AND IMAGE PROCESSING
(Common to Computer Science and Engineering and Electronics and Computer Engineering)
Time: 3 hours Max. Marks: 80
Answer any FIVE questions
All questions carry equal marks
- - -
1. With a brief note on various elements of digital image processing system. Explain image acquisition devices in detail.
2.a) Explain the following gray level transformations :
i)Image negatives ii)Log transformations iii)Power law transformations.
b) Explain the need for histogram equalization.
3.a) Explain smoothing using rotating mask and the algorithm for this type of smoothing.
b) Explain what is spatial filtering.
4.a) Enumerate the basic formulation of the region-based segmentation.
b) Explain the concept of region growing procedure with suitable example.
5. Explain in detail how the Gradient and Laplacian operators are used in image segmentation applications.
6. Explain about the following morphological operations used in gray scale image representation: (a) Dilation (b) Erosion (c) Opening (d) Closing.
7.a) Explain about (i) two dimensional run length coding (ii) contour coding.
b) What do you mean by reversible in compression?
8.a) Mention different types of coding used in error free compression.
b) Explain about any three types of coding in error free compression
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