Invention Grant
- Patent Title: Contrast control device and method therefor
- Patent Title (中): 对比度控制装置及其方法
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Application No.: US12784793Application Date: 2010-05-21
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Publication No.: US08599318B2Publication Date: 2013-12-03
- Inventor: Paul M. Astrachan , Chris A. Aardema
- Applicant: Paul M. Astrachan , Chris A. Aardema
- Applicant Address: CA Toronto, Ontario
- Assignee: Vixs Systems, Inc.
- Current Assignee: Vixs Systems, Inc.
- Current Assignee Address: CA Toronto, Ontario
- Main IPC: H04N5/14
- IPC: H04N5/14 ; H04N5/57 ; G06K9/00

Abstract:
A first video picture is translated based upon a first translation matrix to adjust a contrast of the first video image. A second translation matrix is determined based upon a first histogram of a second video picture. A third translation matrix is determined based upon the first translation matrix and the second translation matrix, and the video picture is translated based upon the third translation matrix. The translation matrix can be determined using a histogram that has been adjusted using a clipped histogram equalization technique.
Public/Granted literature
- US20110285911A1 CONTRAST CONTROL DEVICE AND METHOD THEREFOR Public/Granted day:2011-11-24
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