The relative darkness of grays on air photos is called what?

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Multiple Choice

The relative darkness of grays on air photos is called what?

Tone is the attribute that describes how light or dark a feature appears on an air photo. It captures the grayscale brightness level across the image, which is what the question means by the relative darkness of the grays. Hue is about color, which isn’t a factor in black-and-white air photos; contrast refers to the difference between light and dark areas rather than the inherent brightness of a single area; value is another term for brightness, but in classic photo interpretation the standard term used for this perceptual brightness across features is tone. So the term that best fits the description is tone.

Tone is the attribute that describes how light or dark a feature appears on an air photo. It captures the grayscale brightness level across the image, which is what the question means by the relative darkness of the grays. Hue is about color, which isn’t a factor in black-and-white air photos; contrast refers to the difference between light and dark areas rather than the inherent brightness of a single area; value is another term for brightness, but in classic photo interpretation the standard term used for this perceptual brightness across features is tone. So the term that best fits the description is tone.

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