Patent · US Active

Image enhancement method and apparatuses utilizing the same

US8457398B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Himax Media Solutions, Inc. · TW

Inventors

Wei-Ting Suen · Danei, TW
Shing-Chia Chen · Danei, TW

Key dates

Filing date	Oct 27, 2009
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Feb 4, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/20021
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An image enhancement apparatus is provided. The image enhancement apparatus includes a global contrast curve generator, a local contrast curve generator and an image generator. The global contrast curve generator generates a global contrast curve for an input image according to a global histogram of the input image. The local contrast curve generator generates a local contrast curve for each image partition within the input image according to the global contrast curve and further a feature of the image partition. The image generator generates an output image by enhancing a contrast of each image partition according to the local contrast curve for the image partition and the input image, and merging the enhanced image partitions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.