Digital Image Processing Questions and Answers
Q1.
Which of the following filter(s) attenuates low frequency while passing high frequencies of an image?
Answer :
Highpass filter
Q2.
Which of the following filtering is done in frequency domain in correspondence to lowpass filtering in spatial domain?
Answer :
Gaussian filtering
Q3.
Which of the following lowpass filters is/are covers the range of very smooth filter function?
Answer :
Ideal lowpass filters
Q4.
The characteristics of the lowpass filter h(x, y) is/are_________
Answer :
1. Has a dominant component at origin
2. Has a concentric, circular components about the center component
Q5.
Which of the following is/ are a generalized form of unsharp masking?
Answer :
High-boost filtering
Q6.
Which of the following fact is true for a image?
Answer :
An image is the multiplication of illumination and reflectance component
Q7.
The reflectance component of an image varies abruptly particularly at the junction of dissimilar objects. The characteristic lead to associate illumination with ____
Answer :
The high frequency of Fourier transform of logarithm of the image
Q8.
For what value of the output must the Power-law transformation account for offset?
Answer :
Zero
Q9.
Which of the following involves reversing the intensity levels of an image?
Answer :
Image Negatives
Q10.
A fuzzy set ‘A’ in Z is characterized by a ________ that associates with element of Z, a real number in the interval [0, 1].
Answer :
Membership function
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