1. Which of the following fact is true for an image?
A. An image is the addition of illumination and reflectance component
B. An image is the subtraction of illumination component from reflectance component
C. An image is the subtraction of the reflectance component from the illumination component
D. An image is the multiplication of illumination and reflectance component
2. If an image is expressed as the multiplication of illumination and reflectance component i.e. f(x, y)= I (x, y) * r(x, y), then Validate the statement “We can directly use the equation f(x, y)= i(x, y) * r(x, y) to operate separately on the frequency component of illumination and reflectance”.
A. True
B. False
3. In Homomorphic filtering which of the following operations is used to convert input image to discrete Fourier transformed function?
A. Logarithmic operation
B. Exponential operation
C. Negative transformation
D. None of the mentioned
4. A class of system that achieves the separation of illumination and reflectance component of an image is termed as __________
A. Base class system
B. Homomorphic system
C. Base separation system
D. All of the mentioned
5. Which of the following image component is characterized by a slow spatial variation?
A. Illumination component
B. Reflectance component
C. All of the mentioned
D. None of the mentioned
6. Which of the following image component varies abruptly, particularly at the junction of dissimilar objects?
A. Illumination component
B. Reflectance component
C. All of the mentioned
D. None of the mentioned
7. The reflectance component of an image varies abruptly, particularly at the junction of dissimilar objects. The characteristic lead to associate illumination with __________
A. The low frequency of Fourier transform of the logarithm of the image
B. The high frequency of Fourier transform of the logarithm of the image
C. All of the mentioned
D. None of the mentioned
8. The illumination component of an image is characterized by a slow spatial variation. The characteristic lead to associate illumination with __________
A. The low frequency of Fourier transform of the logarithm of the image
B. The high frequency of Fourier transform of the logarithm of the image
C. All of the mentioned
D. None of the mentioned
9. If the contribution made by the illumination component of the image is decreased and the contribution of the reflectance component is amplified, what will be the net result?
A. dynamic range compression
B. Contrast enhancement
C. All of the mentioned
D. None of the mentioned
10. How is negative of an image obtained with intensity levels [0,L-1] with “r” and “s” being pixel values?
A. s = L – 1 + r
B. s = L – 1 – r
C. s = L + 1 + r
D. s = L + 1 + r