The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1999
Filed:
May. 24, 1993
Henry Nicponski, Albion, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An electronic reproduction apparatus is provided with a modeling routine that includes the steps of identifying a portion of an electronic image to be modified; defining an optical axis, a projection point, a density contour shape and a density gradient profile within the portion of the electronic image to be modified; and calculating modified image data values based on the optical axis, projection point, density contour shape and density gradient profile; applying the modified image data values the portion of the electronic image to be modified. The modified image data is calculated using a cubic spline interpolation. The modeling routine enables the production of smooth and natural contours and gradients required to create common enhancement effects such as shadows, glows, highlights and vignettes.