B.TECH - Semester 6 digital image processing Question Paper 2013 (apr)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Differentiate between grey scale and binary image
- Write a short note on averaging filter
- Discuss about edge detection using first order derivatives
- Explain erosion and dilation
- Describe HSI colour image model Answer any two questions from each module. Each full question carries 20 marks
- Perform the correlation between two signals $x[m, n]=\left[\begin{array}{cc}5 & 10 \\ 15 & 20\end{array}\right]$ and $h[m, n]=\left[\begin{array}{cc}3 & 6 \\ 9 & 12\end{array}\right]$ using Fourier transform method.
- Explain any five properties of 2D DFT. ..... 20
- (a) Perform histogram equalization of the image $\left[\begin{array}{ccccc}5 & 5 & 5 & 5 & 5 \\ 4 & 5 & 6 & 5 & 4 \\ 4 & 6 & 6 & 6 & 4 \\ 4 & 5 & 6 & 5 & 4 \\ 5 & 5 & 5 & 5 & 5\end{array}\right]$
- (b) Explain homomorphic filters. OR
- (a) Explain image restoration using inverse filtering.
- (b) Give the analysis of a mean filter in frequency domain. Establish its connection with LP filter.
- Using an example explain split and merge segmentation technique. Also give the quad tree representation of the split and merge procedure OR
- (a) Find the occurrence matrix for the given image $F=\left[\begin{array}{cccccc}1 & 1 & 7 & 5 & 3 & 2 \\ 5 & 1 & 6 & 1 & 2 & 5 \\ 8 & 8 & 6 & 8 & 1 & 2 \\ 4 & 3 & 4 & 5 & 5 & 1 \\ 8 & 7 & 8 & 7 & 6 & 2 \\ 7 & 8 & 6 & 2 & 6 & 2\end{array}\right]$ for...
- (b) Give its application in image processing.
- Explain Hit or Miss Transform.
- Explain the steps of gamma correction of a colour image. ( $4 \times 20=80$ Marks) LIBRARY refleence . 2