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:
Jan. 22, 2013
Filed:
Jun. 28, 2009
Michael Kass, Berkeley, CA (US);
Justin Solomon, Oakton, VA (US);
Michael Kass, Berkeley, CA (US);
Justin Solomon, Oakton, VA (US);
Pixar, Emeryville, CA (US);
Abstract
Local histogram-based filters may create non-photorealistic computer graphics effects. An edge-preserving smoothing filter processes a source image to generate a smoothed image. An orientation filter processes the source image to generate a smoothed orientation image. At least one of the orientation filter and the edge-preserving smoothing filter include a local histogram-based filter. The non-photorealistic effect filter may generate a fine detail image from the smoothed image and the source image. The fine detail image may be diffused according to the smoothed orientation image to generate a brush stroke image. The brush stroke image is combined with a base image to create a non-photorealistic image. Local histogram-based filters include a closest mode, a local median, and a dominant mode filter. Local histogram-based filters are determined by convolving a neighborhood filter with one or more offset-kernel images, each based on the application of a shifted tonal filter kernel to the source image.