Digital Image Processing Test
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1. As window level increases d. Brightness decreases
a. contrast scale increases
b. contrast scale decreases
c. brightness increases
d. brightness decreases
2. Required corrections made to "raw" digital image data a. preprocessing
that occur as a result of inherent flaws in the image
acquisition system is referred to as
a. preprocessing
b. postprocessing
c. windowing
d. leveling
3. Desirable conditions for viewing digital images in- b. 1 & 2
clude
1. decreased ambient light
2. reduced monitor glare
3. well lit area
a. 1 only
b. 1 & 2
c. 2 & 3
d. 1, 2 & 3
4. Postprocessing image manipulation in computed radi- d. 1, 2 & 3
ography allows for which of the following
1. black/white reversal
2. contrast and edge enhancement
3. subtraction
a. 1 & 2
b. 1 & 3
, Digital Image Processing Test
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c. 2 & 3
d. 1, 2 & 3
5. in computed radiography, image brightness may be b. changing the window
adjusted by level
a. doubling the mAs
b. changing the window level
c. changing the window width
d. adjusting the window depth
6. Radiographic contrast in computed radiography may b. window width
be adjusted by changing the
a. window level
b. window width
c. area of the patient being irradiated
d. imaging plate
7. Artifacts in computed radiography may be caused by a. 1, 2 & 3
which of the following
1. scatter radiation
2. improper use of grids causing a moire pattern
3. dust on the imaging plate (IP)
a. 1, 2 & 3
b. 1 & 2
c. 2
d. 3
8. Manipulation of grey level values is associated with a. lookup table and win-
a. lookup table and window width dow width
b. window level and lookup table
c. window level and edge enhancement
d. window width and edge enhancement
Study online at https://quizlet.com/_ekni78
1. As window level increases d. Brightness decreases
a. contrast scale increases
b. contrast scale decreases
c. brightness increases
d. brightness decreases
2. Required corrections made to "raw" digital image data a. preprocessing
that occur as a result of inherent flaws in the image
acquisition system is referred to as
a. preprocessing
b. postprocessing
c. windowing
d. leveling
3. Desirable conditions for viewing digital images in- b. 1 & 2
clude
1. decreased ambient light
2. reduced monitor glare
3. well lit area
a. 1 only
b. 1 & 2
c. 2 & 3
d. 1, 2 & 3
4. Postprocessing image manipulation in computed radi- d. 1, 2 & 3
ography allows for which of the following
1. black/white reversal
2. contrast and edge enhancement
3. subtraction
a. 1 & 2
b. 1 & 3
, Digital Image Processing Test
Study online at https://quizlet.com/_ekni78
c. 2 & 3
d. 1, 2 & 3
5. in computed radiography, image brightness may be b. changing the window
adjusted by level
a. doubling the mAs
b. changing the window level
c. changing the window width
d. adjusting the window depth
6. Radiographic contrast in computed radiography may b. window width
be adjusted by changing the
a. window level
b. window width
c. area of the patient being irradiated
d. imaging plate
7. Artifacts in computed radiography may be caused by a. 1, 2 & 3
which of the following
1. scatter radiation
2. improper use of grids causing a moire pattern
3. dust on the imaging plate (IP)
a. 1, 2 & 3
b. 1 & 2
c. 2
d. 3
8. Manipulation of grey level values is associated with a. lookup table and win-
a. lookup table and window width dow width
b. window level and lookup table
c. window level and edge enhancement
d. window width and edge enhancement
