Q.1
Which of the following expression is used to denote spatial domain process?
  • a) g(x,y)=T[f(x,y)]
  • b) f(x+y)=T[g(x+y)]
  • c) g(xy)=T[f(xy)]
  • d) g(x-y)=T[f(x-y)]
Q.2
Which of the following shows three basic types of functions used frequently for image enhancement?
  • a) Linear, logarithmic and inverse law
  • b) Power law, logarithmic and inverse law
  • c) Linear, logarithmic and power law
  • d) Linear, exponential and inverse law
Q.3
Which expression is obtained by performing the negative transformation on the negative of an image with gray levels in the range[0,L-?
  • a) s=L+1-r
  • b) s=L+1+r
  • c) s=L-1-r
  • d) s=L-1+r
Q.4
What is the general form of representation of log transformation?
  • a) s=clog10(1/r)
  • b) s=clog10(1+r)
  • c) s=clog10(1*r)
  • d) s=clog10(1-r)
Q.5
What is the general form of representation of power transformation?
  • a) s=crγ
  • b) c=srγ
  • c) s=rc
  • d) s=rcγ
Q.6
What is the name of process used to correct the power-law response phenomena?
  • a) Beta correction
  • b) Alpha correction
  • c) Gamma correction
  • d) Pie correction
Q.7
Which of the following transformation function requires much information to be specified at the time of input?
  • a) Log transformation
  • b) Power transformation
  • c) Piece-wise transformation
  • d) Linear transformation
Q.8
In contrast stretching, if r1=s1 and r2=s2 then which of the following is true?
  • a) The transformation is not a linear function that produces no changes in gray levels
  • b) The transformation is a linear function that produces no changes in gray levels
  • c) The transformation is a linear function that produces changes in gray levels
  • d) The transformation is not a linear function that produces changes in gray levels
Q.9
In contrast stretching, if r1=rs1=0 and s2=L-1 then which of the following is true?
  • a) The transformation becomes a thresholding function that creates an octal image
  • b) The transformation becomes a override function that creates an octal image
  • c) The transformation becomes a thresholding function that creates a binary image
  • d) The transformation becomes a thresholding function that do not create an octal image
Q.10
In contrast stretching, if r1≤rand s1≤s2 then which of the following is true?
  • a) The transformation function is double valued and exponentially increasing
  • b) The transformation function is double valued and monotonically increasing
  • c) The transformation function is single valued and exponentially increasing
  • d) The transformation function is single valued and monotonically increasing
Q.11
In which type of slicing, highlighting a specific range of gray levels in an image often is desired?
  • a) Gray-level slicing
  • b) Bit-plane slicing
  • c) Contrast stretching
  • d) Byte-level slicing
Q.12
Which of the following depicts the main functionality of the Bit-plane slicing?
  • a) Highlighting a specific range of gray levels in an image
  • b) Highlighting the contribution made to total image appearance by specific bits
  • c) Highlighting the contribution made to total image appearance by specific byte
  • d) Highlighting the contribution made to total image appearance by specific pixels
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