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UNIT-II61.The sum of cosines and sines coefficient multiplied isa)Fourier seriesb)Fourier transformc)fast Fourier seriesd)fast Fourier transformAnswer: a62.The _____ transforms kernels are separable and also symmetrica)Walshb)Hadamardc)KL transformd)CDTAnswer: a63.Basic steps for filtering in the frequency domaina)Fourier transformb)Noise functionc)Laplace transform transform d)Inverse Laplace transform transform Answer: a64.A generalization of unsharp masking isa)high boost filteringb)low boost filteringc)Medium boost filteringd)Very low boost filteringAnswer: a65.Sum of many infinitely many periodic impulses is calleda)aperiodic impulseb)periodic impulsec)impulse traind)summationAnswer: c66.Aliasing as block like image components is calleda)quantizationb)convolutionc)jaggiesd)blurringAnswer: c67.An image transmitted using wireless networka)corrupted as a result of lighting or other atmospheric disturbanceb)non-corrupted as a result of lighting or other atmospheric disturbancec)corrupted as a result of pixel disturbanced)Non-corrupted as a result of pixel disturbanceAnswer: a68.Fourier spectrum of noise is constant, the noise usuallya)white noiseb)red noisec)green noised)Pepper noiseAnswer: a69A continuous band limited function can be recovered with no error if sampled intervals are less than 1/2umax is the statement ofa)2D sampling seriesb)3D sampling theoremc)1D sampling theoremd)2D sampling theoremAnswer: d70Bipolar impulse noise is also called a)salt and pepper noiseb)white noisec)Gaussian noised)Green noiseAnswer: a71The number of shades of gray in a six-bit image is a)256b)128c)64d)32Answer: c72The matrix which consists of square array of plus and minus one’s rows and columns is said to be ——matrixa)Walshb)KL Transformc)Hadamardd)CDTAnswer: c73The _____ transform possess good energy compaction propertya)Walshb)KL Transformc)Hadamardd)SlantAnswer: d74The KL or hotelling transform is used for —— processa)Image processingb)object recognitionc)Pattern recognitiond)Pixels recognitionAnswer: b75The transform which is recommended in JPEG2000 standard isa)radon transformb)discrete cosine transformc)Walsh transformd)wavelet transformAnswer: d76The image-processing operation which is not commutative is a)matrix additionb)convolutionc)dilationd)erosionAnswer: d77The process of embedding one image in another image is termed a)ditheringb)demosicingc)watermarkingd)beamformingAnswer: c78?Fourier transform of unit impulse at origin isa)undefinedb)infinityc)1d)0Answer: c79continuous functions are sampled to form aa)Fourier seriesb)Fourier transformc)fast Fourier seriesd)digital imageAnswer: d80Any function whose Fourier transform is zero for frequencies outside the finite interval is calleda)high pass functionb)low pass functionc)band limited functiond)band pass functionAnswer: c81Fourier transform’s domain isa)Frequency domainb)Spatial domainc)Fourier domaind)Time domainAnswer: a82?The continuous variables in 2D transform pair are interpreted asa)continuous frequency variablesb)spatial variablesc)continuous spatial variablesd)discrete spatial variablesAnswer: c83The greater, the values of continuous variables, the spectrum of Fourier transform will bea)contractedb)expandedc)discreted)continuousAnswer: a84?Fourier transform of two continuous functions, that are inverse of each other is calleda)Fourier series pairb)Fourier transform pairc)Fourier seriesd)Fourier transformAnswer: b85Forward and inverse Fourier transforms exist for the samples having valuesa)integersb)infinitec)finited)discreteAnswer: c86?(0,0) is sometimes calleda)ac componentb)dc componentc)jaggyd)coordinateAnswer: b87Impulse has the property calleda)rotating propertyb)shifting propertyc)additive propertyd)additive inverseAnswer: b88The DCT transformation kernels are,a)Separableb)Realc)Orthogonald)IdenticalAnswer: a89the Fourier transform is named after French mathematiciana)joseph Fourierb)john Fourierc)sean Fourierd)jay FourierAnswer: a90Product of two functions in spatial domain is what, in frequency domaina)Correlationb)Convolutionc)Fourier transformd)Fast Fourier transformAnswer: b91The transform with more than one scaling function is a)Wavelet transformb)Wavelet packet transformc)Multi wavelet transformd)Contourlet transformAnswer: c92?Fourier stated that the periodic function is expressed as sum ofa)Sineb)Cosinec)Tangentd)Sine and cosineAnswer: d93?___transform is differ from the walsh transform only in the order of the basis function a)Hadamard transform b)Slant transform c)Discrete cosine transform d)KL Transform Answer: a94Prewitt and sobel operators that provides the ___ imagea)first derivativeb)second derivativec)Third derivatived)At 0 derivativeAnswer: a95The slant transform is____a)Real and symmetrical b)Orthogonal and unsymmetrical c)Symmetrical and unsymmetrical d)Real and orthogonal Answer: d96Inverse FFT algorithm is used for implementing the ___ also may be used to compute the inverse.a)discrete backward transformb)discrete forward transformc)cosine forward transformd)Cosine backward transformAnswer: b97____transform has poor energy compaction for images.a)Haarb)Walshc)Hadamardd)Discrete cosineAnswer: a98This is a very fast transform. On a Nx1 vector it can be implemented in O(N) operations.a)Hadamardb)Walshc)Haard)Discrete cosineAnswer: c99It has very good to excellent energy compaction for images.a)Haarb)Walshc)Hadamardd)slantAnswer: d100It has excellent energy compaction for correlated dataa)Discrete cosine transformb)Hadamard transformc)Walsh transformd)Hotelling transform Answer: a101Energy compaction is less in a)1D-FFTb)2D-FFTc)Walsh d)HadamardAnswer: b102KL Transform is also called as a)Hotelling transform b)Discrete transform c)Slant transformd)Walsh transformAnswer: a103Give the condition for perfect transforma)Transpose of matrix=-Inverse matrixb)Transpose of matrix=Inverse matrixc)(Transpose of matrix)T=Inverse matrix d)(Transpose of matrix)=(Inverse matrix)TAnswer: b104The number of bits to store a digital image is a)b=MxNxkb)b=-MxNxkc)b=-MxNx2kd)b=MxNx2kAnswer: a105. ___transforms whose basis functions are capable of representing the directional information present in the image(a) Non-directional transformation(b) Directional transformation(c) Uniform transformation(d) Non-uniform transformationAnswer: b106. ___ is the simplest example of a wavelet transform(a) Haar transform(b) Slant transform? Hadamard transform(d) Hotelling transformAnswer: a107. An discrete linear transformation is unitary if its transform matric conforms to the unitary condition is ___(a) AxAH=-I(b) A/AH=I(c) AxAH=2(d) AxAH=1Answer: d108. When rotated through 90° about the origin in a clockwise direction, the image of the point (3, 1) is (a) (?1, 3 ) (b) (3 , ? 1) (c) (1 , ? 3) (d) (?3, 1 ) Answer : c109. The point P(2, ?3 ) is translated by a vector (-3, 4 ) . The coordinates of the image of P are (a) (?1 ,1 ) (b) (1 ,1 ) (c) (5, 7 ) (d) (6 ,-6 )Answer :a110. Which of the following transformation is known as Flip transformation ? a)Reflection ?? b) shearing?????? ????? c)scaling????? d)None of these.Answer :a111. Which of the following transformation is known as Shift transformation ? a)Reflection?? ? b) shearing??????????? c)Translation????? d)None of these.Answer :c112. Which of the following transformation is known as ZOOM? transformation ? a)Reflection? ? b) shearing????? ?????? c)scaling????? d)None of these.Answer :c113. The transform which posseses the ‘multi-resolution’ property isFourier Transform Short time fourier transformCosine TransformWavelet TransformAnswer :d114. The transform used in JPEG image compression is a) disctere cosine Transformb)Walsh Transformc)Hadamard Transformd)KL TransformAnswer : a115. The transform which is widely used to detect ‘lines’ in an image isa)Fourier Transformb)Hough Transform c)Cosine Transformd)Haar TransformAnswer: B116. The number of coefficients produced in transform coding is __________ to the number of pixels transformed.More thanLess thanEqual toCan’t sayAnswer: c117. Gray-level interpolation deals with the assignment of gray levels to _________ in the spatially transformed image.PixelsCoordinatesPointsEdgesAnswer: c118. the logarithm of a fourier transform is generally termed a) Spectrumb) Power spectrumc) Cepstrumd) Energy spectrumAnswer: d119. Which of these is not a property of Slant transform?[d]Slant transform is real and orthogonal.Slant transform is a fast transformSlant transform has very good energy compaction for imagesSlant transform is a slow transformAnswer: d120.Which of these is not a property of cosine transform?Real & orthogonal.Fast transform.Slow transformHas excellent energy compaction for highly correlated dataAnswer: c ................
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