Method of image enhancement by raster scanning

Patent 4571635 Issued on February 18, 1986. Estimated Expiration Date:

February 17, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 06/581333 filed on 02/17/1984

US Classes:

358/510, Coherent light250/581, Using a stimulable phosphor250/909, METHODS AND APPARATUS ANCILLARY TO STIMULABLE PHOSPHOR SYSTEMS358/447, Signal enhancing382/266, Edge or contour enhancement382/274Intensity, brightness, contrast, or shading correction

Examiners

Primary: Coles, Sr., Edward L.

Attorney, Agent or Firm

International Classes

G06T 5/20 (20060101)
H04N 1/409 (20060101)

Abstract

A method of enhancing images comprises making a point-by-point record of an image with successive pixels in a logical array, determining the standard deviation of the pixels, determining an effective central pixel value, and then displaying or recording the image using the determined central pixel values.