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:
May. 30, 2006
Filed:
Jan. 31, 2001
Greg White, Sunnyvale, CA (US);
Robert Kieffer, San Francisco, CA (US);
Keith Bernstein, San Francisco, CA (US);
Greg White, Sunnyvale, CA (US);
Robert Kieffer, San Francisco, CA (US);
Keith Bernstein, San Francisco, CA (US);
America Online, Inc., Dulles, VA (US);
Abstract
A method for determining transparency in image extraction creates a first mask bitmap by combining a first image and a second image, wherein the first image and the second image have the same size and are the same except for transparent areas. A second mask bitmap is created which displaces pixels of first RGB values in the first image to second RGB values. The first mask bitmap is applied to the second mask bitmap by performing an 'OR' operation on the first and second mask bitmaps. Pixels in the resulting bitmap of the 'OR' operation which have the first RGB values are transparent. Pixels in the resulting bitmap of the ‘OR’ operation, corresponding to the pixels in the first image that had the first RGB values, have the second RGB values. Pixels are identified in the resulting bitmap of said ‘OR’ operation which have said first RGB values as transparent.