Patents by Inventor Jonathan Hui

Jonathan Hui 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).

  • Multimedia application using flashpix file format
    Patent number: 6237010
    Abstract: A system, for use on a computer system, creates and publishes a set of images, each image in the set being stored in a FlashPix file which contains at least the image in multiple resolutions, viewing parameters for viewing the image, and information related to the image. The system includes displaying, on a computer-generated workbench, a plurality of images retrieved from FlashPix files, and correcting images displayed in the workbench. In the system, image correction comprises altering viewing parameters in FlashPix files corresponding to the displayed images. The system also composes displayed images by adding or deleting, from FlashPix files corresponding to the displayed images, information related to the displayed images, and publishes a set of images displayed on the workbench. The set of published images includes corrected and composed images.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: May 22, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jonathan Hui, Chris See Liang Yeo
  • Combined color cast removal and contrast enhancement for digital color images
    Patent number: 6181321
    Abstract: An original image is processed while permitting a user to control an amount of color cast removal and an amount of color contrast enhancement performed on the original image. A user interface, which includes a control element having a single degree of freedom, is provided. User adjustment of the control element is responded to by simultaneously varying the degree of color cast removal and the amount of color contrast enhancement performed on the original image. In a further embodiment, an original image is processed so as to automatically remove color cast from the original image. According to this embodiment contrast is reduced for certain very dark pixels and very bright pixels, and enhanced for the remainder. In a still further embodiment, an original image is processed so as to automatically enhance color contrast in the original image.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: January 30, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Zhao, Jonathan Hui, Timothy L. Kohler
  • Image compression using adjacent pixels and predetermined colors
    Patent number: 5915077
    Abstract: Compression for color values of pixels in a raster image of pixels, in which pixels are selected in a checkerboard-like pattern. Pixels selected by the checkerboard are not compressed at all, whereas pixels not selected by the checkerboard are compressed by using the color of the closest one of adjacent selected pixels and of a few predetermined colors.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: June 22, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manish Kulkarni, Jonathan Hui, Ron Barzel