公开(公告)号：US20120200778A1

公开(公告)日：2012-08-09

申请号：US13447342

申请日：2012-04-16

Applicant: Vijay Kumar KODAVALLA ,  Deepak Kumar ARAVAPALLI

Inventor： Vijay Kumar KODAVALLA ,  Deepak Kumar ARAVAPALLI

IPC: H04N9/68

CPC classification number: H04N9/68 ,  G06T5/009 ,  G06T5/40 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024

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 gain is disclosed. In one embodiment, a saturation 1D-histogram for each of the user chosen colors is formed using a substantially current video frame. Further, a saturation gain, adaptive to slow or fast moving image sequences, is dynamically computed for each of the user chosen colors of the substantially current video frame using the corresponding saturation 1D-histogram of the substantially current video frame and corresponding saturation 1D-histogram information and a saturation gain of a substantially previous video frame. Furthermore, which one of the dynamically computed saturation gains associated with the user chosen colors to be applied on a per-pixel basis is determined. The determined saturation gain is applied to saturation component on the per-pixel basis in the substantially current or next video frame.

Abstract translation: 公开了一种用于使用饱和增益在输入数字视频信号的逐帧基础上动态地和自适应地增强用户选择的颜色的系统和方法。 在一个实施例中，使用基本上当前的视频帧来形成每个用户选择的颜色的饱和1D直方图。 此外，使用基本上当前视频帧的对应的饱和1D直方图和相应的饱和1D直方图，动态地计算针对基本上当前视频帧的每个用户选择的颜色的适应于慢或快速运动图像序列的饱和增益 信息和基本上先前的视频帧的饱和增益。 此外，确定与以每像素为基础施加的用户选择的颜色相关联的动态计算的饱和增益中的哪一个。 所确定的饱和增益在基本上当前或下一个视频帧中以每像素为基础被施加到饱和分量。