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Questions and Answers
What is the main reason for rescaling image brightness?
Why might an image have poor contrast on a display if the display can only show a range from 0-63?
How does contrast enhancement impact image pixels?
In what way does image enhancement affect detail visibility in darker regions of an image?
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What determines the selection of an appropriate technique to improve the quality of a displayed image?
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Why are alternative approaches proposed to improve image quality?
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What is the main advantage of digital imagery mentioned in the text?
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Why may radiometric corrections still be necessary even if done prior to data distribution?
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Why is a generic radiometric correction not sufficient for all targets according to the text?
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What is the main objective of image enhancement as described in the text?
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Why is custom adjustment often necessary for brightness values in image enhancement?
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Which factor necessitates remote sensing devices to be designed for various levels of energy?
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What is the primary purpose of density slicing in image processing?
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How does edge enhancement impact visual transitions between bright and dark regions?
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In edge enhancement, what is the role of the Laplacian filter?
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Why is density slicing not considered to provide additional information compared to the original image?
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What effect does edge enhancement have on noise and distinctiveness of visual transitions?
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Which statement best describes the purpose of edge enhancement filters?
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What does linear stretch do to the original digital values?
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How does piecewise linear stretch differ from linear stretch?
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What is the main difference between histogram equalization and contrast stretching?
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Why is histogram equalization effective in enhancing image detail?
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What is the purpose of dividing the original brightness range into segments in piecewise linear stretch?
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What effect does linear stretch have on old intermediate values?
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What is the purpose of the edge-enhancement procedure described by Rohde et al. (1978)?
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How is the new digital value calculated in the edge-enhancement procedure according to the text?
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What effect does applying a constant have in the edge-enhancement procedure?
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How does the output value change brightness levels in Rohde et al.'s edge-enhancement procedure?
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In Rohde et al.'s edge-enhancement method, what does twice the input value represent in relation to the local average?
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What is the significance of accentuating differences in brightness in an image, as done in Rohde et al.'s edge-enhancement technique?
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