Patents by Inventor Lindsay William MacDonald

Lindsay William MacDonald 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).

  • Patent number: 7515765
    Abstract: Methods, media, and a system provide image sharpness management for electronic images. Pixel values for an unmodified image are processed relative to spatial frequency bands for that image. An average pixel value is acquired for each of the spatial frequency bands and used to alter the corresponding pixel value of the image. A resulting modified image exhibits enhancement of sharpness, based on adjustments for each of the spatial frequency bands. In one embodiment, the average pixel value is adjusted based on an expected viewing distance of an observer. In another embodiment, the average pixel value is adjusted based on the ability of a display device to reproduce spatial frequencies in the image.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: April 7, 2009
    Assignee: Apple Inc.
    Inventors: Lindsay William MacDonald, Samira Bouzit