Multi layered image enhancement technique

Patent metadata

Field	Value
Publication number	US-9002133-B2
Application number	US-201313778598-A
Country	US
Kind code	B2
Filing date	Feb 27, 2013
Priority date	Feb 27, 2013
Publication date	Apr 7, 2015
Grant date	Apr 7, 2015

Abstract

A system for enhancing an input image including receiving an input image and filtering the input image with a plurality of non-linear smoothing filters providing a respective plurality of filtered outputs. The system processes a plurality of the filtered outputs with respect to at least one of another of the filtered outputs and the input image to determine a plurality of detail layers. The system filters the plurality of detail layers with a plurality of non-linear smoothing filters providing a respective plurality of smoothed layers. The system adjusts the plurality of smoothed layers in such a manner that regions closer to an edge are enhanced to a lesser extent than regions farther from an edge and combining the adjusted the smoothed layers to provide an enhanced output image.

First claim

We claim:

1. A method for enhancing an input image comprising:
(a) receiving an input image;
(b) filtering said input image with a first non-linear smoothing filter to provide a first filtered output;
(c) filtering said input image with a second non-linear smoothing filter to provide a second filtered output;
(d) filtering said input image with a third non-linear smoothing filter to provide a third filtered output;
(e) processing said input image and said first filtered ou…

Assignees

• Sharp Lab Of America Inc

Inventors

• Seo Hae-Jong
• Segall Christopher A

Classifications

• G06T5/002 Primary

  Physics · mapped topic

• G06T2207/20024

  Physics · mapped topic

• G06T5/70 Primary

  Physics · mapped topic

• G06T5/75

  Physics · mapped topic