Q. Unsharp masking can be implemented directly in frequency domain by using a filter: Hhp(u, v) = 1 – Hlp(u, v), where Hlp(u, v) the transfer function of a lowpass filter. What kind of filter is Hhp(u, v)?

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Q. The frequency domain Laplacian is closer to which of the following mask?

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Q. To accentuate the contribution to enhancement made by high-frequency components, which of the following method(s) should be more appropriate to apply?

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Q. A process that accentuate the contribution to enhancement made by high-frequency components, by multiplying the highpass filter by a constant and adding an offset to the highpass filter to prevent eliminating zero frequency term by filter is known as _______

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Q. The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a≥0 and b>a. for certain values of a and b it reduces to High-boost filtering. Which of the following is the required value?

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Q. The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a≥0 and b>a. What happens when b increases past 1?

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Q. The transfer function of High frequency emphasis is given as: Hhfe(u, v) = a + b Hhp(u, v), for Hhp(u, v) being the highpass filtered version of image,a≥0 and b>a. When b increases past 1 the filtering process is specifically termed as__________

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Q. Validate the statement “Because of High frequency emphasis the gray-level tonality due to low frequency components is not lost”.

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Q. Which of the following fact is true for a image?

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Q. 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” .

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Q. In Homomorphic filtering which of the following operations is used to convert input image to discrete Fourier transformed function?

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Q. A class of system that achieves the separation of illumination and reflectance component of an image is termed as __________

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Q. Which of the following image component is characterized by a slow spatial variation?

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Q. Which of the following image component varies abruptly particularly at the junction of dissimilar objects?

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Q. The reflectance component of an image varies abruptly particularly at the junction of dissimilar objects. The characteristic lead to associate illumination with __________

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Q. The illumination component of an image is characterized by a slow spatial variation. The characteristic lead to associate illumination with __________

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Q. If the contribution made by illumination component of image is decreased and the contribution of reflectance component is amplified, what will be the net result?

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Q. How is negative of an image obtained with intensity levels [0,L-1] with “r” and “s” being pixel values?

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Q. The general form of log transformations is ____________________

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Q. Power-law transformations has the basic form of ________________ where c and ∆ are constants.

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