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Maximize a minimum filter

Astroimager Adam Block describes how to use a minimum filter to de-emphasize stars and dramatically enhance astronomical images.
RELATED TOPICS: ASTROIMAGING
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Faint to medium-bright stars in an image can be a distraction, making it difficult to appreciate a nebula or galaxy. Using a minimum or erosion filter is a wonderful way to de-emphasize star-crowded fields and thereby dramatically enhance your image.

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