TEST BANK FOR Digital Image
Processing 3ed Edition By Rafael C.
Gonzalez and Richard E. Woods
(Solution Manual)
,Failure of the reader to find the collimation
edges of an image - ✔✔ANSW✔✔..May cause
the image to be too bright or too dark
If the entire range of exposure were digitized,
pixel values representing ______ would be
digitized. - ✔✔ANSW✔✔..Scatter, diagnostic
and extreme values
Data collected within the collimator are
represented by a - ✔✔ANSW✔✔..Histogram
A histogram displays the useful signal by
locating - ✔✔ANSW✔✔..Maximum and
minimum signal
The higher the kilovoltage peak, the -
✔✔ANSW✔✔..Narrower the histogram
True or False. The shape of the histogram is
anatomy specific. - ✔✔ANSW✔✔..True
,The Nyquist theorem states that -
✔✔ANSW✔✔..The sampling frequency must be
twice the input signal bandwidth
If too few pixels are sampled, the result will be -
✔✔ANSW✔✔..Low resolution
Raw data used to form the image histogram are
compared with - ✔✔ANSW✔✔..A normal
histogram referenced by the computer
Loss of detail in a digitally processed image -
✔✔ANSW✔✔..Occurs because of the number
of conversions
The longer an image is stored in the CR
cassette, the - ✔✔ANSW✔✔..More energy is
lost by the electrons
1. The spatial coordinates of a digital image
(x,y) are proportional to:
a) Position
b) Brightness
, c) Contrast
d) Noise - ✔✔ANSW✔✔..B
2. Among the following image processing
techniques which is fast, precise and flexible.
a) Optical
b) Digital
c) Electronic
d) Photographic - ✔✔ANSW✔✔..B
3. An image is considered to be a function of
a(x,y), where a represents:
a) Height of image
b) Width of image
c) Amplitude of image
d) Resolution of image - ✔✔ANSW✔✔..C
4. What is pixel?
a) Pixel is the elements of a digital image
b) Pixel is the elements of an analog image
c) Pixel is the cluster of a digital image
d) Pixel is the cluster of an analog image -
✔✔ANSW✔✔..A
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