Range of light intensity levels to which the human eye can adapt (in Log of Intensity-mL)

DIGITAL IMAGE PROCESSING (DIP) - IMAGE RESTORATION AND RECONSTRUCTION MCQ

• Gaussian noise is referred to as
• Convolution in spatial domain is multiplication in
• Linear functions possesses the property of
• PDF in image processing is called
• Filter that replaces the pixel value with the medians of intensity levels is
• In geometric mean filters when alpha is equal to 1 then it works as
• In wiener filtering it is assumed that noise and image are
• EBCT scanners stands for
• PSF stands for
• Filter that performs opposite to band rejected filter is called
• Degradation can be estimated by
• The purpose of restoration is to gain
• Power spectra and noise of undegraded image must be known is a statement of
• Contraharmonic mean filter produces
• One that is not the type of a mean filter
• Restoration can not be done using
• Mean filters reduce noise using
• In geometric mean filters when alpha is equal to 0 then it works as
• To improve the speed of convergence algorithm used is
• Degraded image is produced using degradation process and
• The inverse of image convolution is
• Impulse is simulated by
• The approach to restoration is
• Square of standard deviation is called
• CT stands for
• SNR in noise stands for
• Approach that incorporates both degradation function and statistical noise in restoration is called
• Bandreject filters are used where the noise components are usually
• Spatial filtering is used in the presence of
• Order statistics filters are filters whose responses are based on
• Images usually gets corrupted during
• Minimum mean square error filter is also called
• High frequency components are passed by
• One that is not a type of a noise is
• Filter that replaces the pixel value with the minimum values of intensity levels is
• FFT stands for
• Automatically determined filters provides inferior results as compared to
• Frequencies in predefined neighborhood are rejected by
• Degraded image is given in a
• Filter that computes midpoint between min and max value is called
• Low frequency components are passed by
• Principle sources of noise arise during image
• Periodic noises arise from
• Function having both properties of additivity and homogeneity is called
• Fourier spectrum of noises are constant and usually called
• Salt and pepper noise also referred to the term
• Constrained least squares filter does not implies best in
• Salt and pepper noise can interchangeably be used with
• Gaussian shape function has no
• Filter that replaces the pixel value with the maximum values of intensity levels is
• Which of the following is a receptor in the retina of human eye?
• How is image formation in the eye different from that in a photographic camera
• Range of light intensity levels to which the human eye can adapt (in Log of Intensity-mL)
• What is subjective brightness?
• What is brightness adaptation?
• The inner most membrane of the human eye is
• What is the function of Iris?
• ________ serve to a general, overall picture of the field of view
• Ratio of number of rods to the number of cones is _______
• The absence of receptors is in the retinal area called _____________
• In 4-neighbours of a pixel p, how far are each of the neighbours located from p?
• If S is a subset of pixels, pixels p and q are said to be ____________ if there exists a path between them consisting of pixels entirely in S
• If R is a subset of pixels, we call R a _________ of the image if R is a connected set
• Two regions are said to be ___________ if their union forms a connected set
• If an image contains K disjoint regions, what does the union of all the regions represent?
• For a region R, the set of points that are adjacent to the complement of R is called as ________
• The distance between pixels p and q, the pixels have a distance less than or equal to some value of radius r centred at (x,y) is called :
• The distance between pixels p and q, the pixels have a distance less than or equal to some value of radius r, form a diamond centred at (x,y) is called :
• The distance between pixels p and q, the pixels have a distance less than or equal to some value of radius r, form a square centred at (x,y) is called :
• Which of the following is NOT is not a type of Adjacency?

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