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:
Oct. 09, 2007
Filed:
Apr. 22, 2005
Randy M. Fayan, Medford, MA (US);
Randy M. Fayan, Medford, MA (US);
Avid Technology, Inc., Tewksbury, MA (US);
Abstract
A keyer is provided with a graphical user interface that helps a user visualize the relationship between the key and the image to be processed using that key. A color space swatch is processed by the keyer using the defined key. The output of the keyer as applied to the color space swatch is displayed to the user to illustrate which colors match the defined key. The alpha matte generated by applying the key to the color space swatch also may be displayed. Each pixel in either the color space swatch or the alpha matte generated by applying the key to the color space swatch may be modified to indicate whether its corresponding color is present in the input image or in the preprocessed input image. Luminance processing also may be applied. In particular, the alpha value for a pixel may be adjusted according to the luminance of the pixel according to a user defined function. The alpha matte displayed to the user may include the effects of such luminance processing. The keyer may preprocess the input image by modifying the saturation of each pixel using the luminance of the pixel. These displays may be interactively updated as the user modifies the definition of the key or the controls for preprocessing or luma processing.