23-10-2014, 04:39 PM
ECE I Mid Questions
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Subject: Digital Image Processing Branch: IV B. Tech-II SEM ECE AY: 2014-15
UNIT-1
1. Explain in detail with the block diagram the fundamental steps in digital image processing and their importance
2. a) with neat sketch, explain the components of image processing system
b) Describe the elements of visual perception
3. a) Explain concept of sampling and quantization of an image, explain how images are digitally represented
b) Discuss the silent features of Discrete cosine transform
4. a) With mathematical expressions discuss Haar transform and explain how it is useful in digital image processing
b) Explain some of the basic relationships that exist between pixels in digital image
UNIT-2
1. Explain the following four basic image gray level transformations.
a) Image negatives b) Log transform c) power law transform d) piece wise linear transformations
2. a) Explain about image smoothing using spatial filters
b) Discuss about image sharpening in spatial domain
3. Explain the following
a) Arithmetic operations on images
b) Logical operations on images
4. a) Explain about histogram specification
b) Explain about fuzzy techniques for intensity transformations.
UNIT-3
1. a) Explain the basic steps for filtering in the frequency domain with neat block diagram
b) Discuss the correspondence between filtering in the spatial and frequency domain in detail
2. a) Discuss about the properties of 2-D Discrete Fourier transform
b) Describe about image smoothing in frequency domain
3. a) what is homomorphic filter? How to implement it
b) Write about image smoothing in frequency domain
4. Discuss the following HPF domain filters
a) Ideal
b) Butter worth
c) Gaussian