1
Q
what is grayscale?
A
difference of the densities on a digital image
2
Q
what is grayscale manipulated by?
A
window width
3
Q
what 3 things determine grayscale
A
Histograms
LUT’s(look up tables)
algorithms
4
Q
what is window width?
A
specific number of gray levels
5
Q
with a smaller or more narrow window width, what happens to contrast?
A
shorter-scale or higher contrast
6
Q
increased window width = _______ grayscale
A
longer (more grays)
7
Q
decreased window width = ________ grayscale
A
shorter (more black and white)
8
Q
we think of kVp as _________ in digital imaging.
A
penetration
9
Q
when kVp is increased, what happens to grayscale?
A
it is not affected
Analog/Digital Packet
flashcards
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