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:
Feb. 27, 2024
Filed:
Dec. 18, 2019
Shanghai Linkchip Semiconductor Technology Co., Ltd., Shanghai, CN;
SHANGHAI LINKCHIP SEMICONDUCTOR TECHNOLOGY CO., LTD., Shanghai, CN;
Abstract
An image enhancement method includes: acquiring an image in a YUV format (); performing N max layers of wavelet decomposition on a brightness component and chrominance components respectively (); starting from the (N max)th layer, performing wavelet reconstruction on the low frequency sub-bands of the chrominance components of each layer on which edge preserving filtering has been performed according to the low frequency sub-band of the brightness component of the corresponding layer, and the high frequency sub-bands of the chrominance components continuously towards an upper layer until an image of an original size is obtained (); performing, according to the brightness component, edge preserving filtering on the chrominance components that have been subjected to the wavelet reconstruction (); integrating the chrominance components that have been subjected to the edge preserving filtering and the brightness component ().