Invention Grant
US09135684B2 Systems and methods for image enhancement by local tone curve mapping
有权
通过局部色调曲线映射进行图像增强的系统和方法
- Patent Title: Systems and methods for image enhancement by local tone curve mapping
- Patent Title (中): 通过局部色调曲线映射进行图像增强的系统和方法
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Application No.: US14076577Application Date: 2013-11-11
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Publication No.: US09135684B2Publication Date: 2015-09-15
- Inventor: Samson Huang
- Applicant: Marvell World Trade Ltd.
- Applicant Address: BB St Michael
- Assignee: MARVELL WORLD TRADE LTD.
- Current Assignee: MARVELL WORLD TRADE LTD.
- Current Assignee Address: BB St Michael
- Main IPC: G06K9/40
- IPC: G06K9/40 ; G06T5/00

Abstract:
Systems and methods are provided for a method of adjusting a digital image. A low pass filtering is performed on a digital image to remove high frequency data to generate filtered image data. The digital image is divided into a plurality of regions, and a brightness level of a particular region of the digital image is identified using the filtered image data. A transformation curve is selected for the particular region based on the brightness level, and the transformation curve is applied to the particular region to generate adjusted image data for the particular region having adjusted brightness. The adjusted image data is stored in a computer-readable medium.
Public/Granted literature
- US20140133776A1 Systems and Methods for Image Enhancement by Local Tone Curve Mapping Public/Granted day:2014-05-15
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