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:
Sep. 10, 1996
Filed:
Jul. 23, 1993
Hiroshi Shibazaki, Kyoto, JP;
Abstract
A shadowing process in which offset values .DELTA.x and .DELTA.y indicating a gradient and a range of the shadowing effect are set as shadowing parameters. A target linework image area G is extracted from original image data on an n-th scanning line. On the next (n+1)-th line, a shadow pixel S1 is obtained for a start pixel GO of the target linework image area G according to a gradient k calculated by the offset values .DELTA.x and .DELTA.y. A shadow line segment on the (n+1)-th scanning line is determined based on the shadow pixel S1 and a length L of the target linework image area G. Shadow line segments are determined for (n+2)-th and (n+3)-th scanning lines in the same manner. The shadow line segments are combined to make a shadow area S.