Patents by Inventor William T. Crocca

William T. Crocca has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Identification, characterization, and segmentation of Halftone or stippled regions of binary images by growing a seed to a clipping mask
    Patent number: 5131049
    Abstract: A method for creating a mask for separating halftone regions in a binary image from other regions comprises: constructing a seed image that includes pixels only in halftone regions and at least one pixel in every halftone region (67); constructing a clipping mask that covers in a connected manner all ON pixels in halftone regions (70); and filling the seed while clipping to the mask (72). Thresholded reductions and morphological operations are preferred.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: July 14, 1992
    Assignee: Xerox Corporation
    Inventors: Dan S. Bloomberg, William T. Crocca