Unsharp masking for image enhancement
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United States of America Patent
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-
Dec 27, 1988
Issued Date -
N/A
app pub date -
Apr 22, 1987
filing date -
Nov 7, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an unsharp masking processing for sharpening images such as radiographic images, an emphasizing coefficient of an image and parameters for real-time change of picture quality are set interactively. The entire image is divided into a plurality of regional images and filtering optimized for each pixel image is effected using a standard deviation computed for each regional image and a density difference between pixel images.
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