Invention Grant
US08447106B2 Method and apparatus for dynamic and adaptive enhancement of colors in digital video images using value bright-gain
有权
使用价值亮度增益的数字视频图像中颜色的动态和自适应增强的方法和装置
- Patent Title: Method and apparatus for dynamic and adaptive enhancement of colors in digital video images using value bright-gain
- Patent Title (中): 使用价值亮度增益的数字视频图像中颜色的动态和自适应增强的方法和装置
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Application No.: US13442866Application Date: 2012-04-10
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Publication No.: US08447106B2Publication Date: 2013-05-21
- Inventor: Vijay Kumar Kodavalla , Deepak Kumar Aravapalli
- Applicant: Vijay Kumar Kodavalla , Deepak Kumar Aravapalli
- Applicant Address: IN Bangalore
- Assignee: Wipro Limited
- Current Assignee: Wipro Limited
- Current Assignee Address: IN Bangalore
- Agency: LeClairRyan, a Professional Corporation
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
System and method for dynamically and adaptively enhancing user chosen colors on a frame-by-frame basis of an incoming digital video signal using a saturation dependent value bright-gain is disclosed. In one embodiment, a value-saturation 2D-histogram for each of the user chosen colors is formed using a substantially current video frame. Further, a saturation dependent value bright-gain is dynamically computed for each of the user chosen colors using the corresponding value-saturation 2D-histogram of the substantially current video frame and corresponding value-saturation 2D-histogram information and a saturation dependent value bright-gain of a substantially previous video frame. Furthermore, which one of the dynamically computed saturation dependent value bright-gains associated with the user chosen colors to be applied on a per-pixel basis is determined. The determined saturation dependent value bright-gain is applied to value component on the per-pixel basis in the substantially current or next video frame.
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