Grayscale Flashcards

1
Q

what is grayscale?

A

difference of the densities on a digital image

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2
Q

what is grayscale manipulated by?

A

window width

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3
Q

what 3 things determine grayscale

A

Histograms
LUT’s(look up tables)
algorithms

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4
Q

what is window width?

A

specific number of gray levels

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5
Q

with a smaller or more narrow window width, what happens to contrast?

A

shorter-scale or higher contrast

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6
Q

increased window width = _______ grayscale

A

longer (more grays)

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7
Q

decreased window width = ________ grayscale

A

shorter (more black and white)

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8
Q

we think of kVp as _________ in digital imaging.

A

penetration

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9
Q

when kVp is increased, what happens to grayscale?

A

it is not affected

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