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. 24, 2005
Filed:
Mar. 12, 2004
Daniel Pettigrew, Montreal, CA;
François Paquin, Montreal, CA;
Daniel Pettigrew, Montreal, CA;
François Paquin, Montreal, CA;
Autodesk Canada Inc., Montreal, CA;
Abstract
A method of matching image color and or luminance characteristics in an image processing system. In order to match an input image with a reference image, a color transformation M is initialised (). An output image is copied () from the input image. The following sequence of operations is then repeated: Output and reference images are displayed on a system monitor. The user identifies () a highlight, shadow or overall region in both images. These regions are processed () to identify a difference (). The difference is concatenated () onto transformation M. The output image is updated () by processing the input with M.