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:
Sep. 13, 2005
Filed:
Feb. 09, 2001
Daniel Pettigrew, Montreal, CA;
Francois Paquin, Montreal, CA;
Daniel Pettigrew, Montreal, CA;
Francois Paquin, Montreal, CA;
Autodesk Canada Inc., Montreal, CA;
Abstract
A method of modifying image data in which image colors are to be modified, including a first step of initializing a color vector function, in which color vector is a function of luminance, and then the following repeated steps. A user defines a luminance range () and a color vector () for that range. The color vector function is updated () and a look-up table () is generated () that is addressable by luminance. Image data () is processed by calculating each pixel's luminance and using this to address the red, green and blue values in the look-up table (). The red, green and blue values so obtained are then added to each pixel's original red, green and blue values, resulting in output image pixels.