公开(公告)号：US20150009228A1

公开(公告)日：2015-01-08

申请号：US14070582

申请日：2013-11-04

Applicant: Novatek Microelctronics Corp.

Inventor： Hsing-Chuan Chen

IPC: G09G5/06 ,  G06T7/40

CPC classification number: G09G5/10 ,  G09G2320/0271 ,  G09G2320/066 ,  G09G2360/16

Abstract: An image processing method, an anti-saturation method for image data and an image processing device are provided. The image processing method includes: analyzing an image frame to obtain an original gain value corresponding to grayscale values of the image frame, wherein the original gain value is greater than 1; obtaining a lookup table recording conversion relationship between default grayscale values and default gain values, wherein the lookup table is used for performing anti-saturation processing on image data of the image frame; according to the original gain value, performing anti-saturation processing for the image frame by using the lookup table to obtain an adjusted conversion relationship of the image frame, wherein the adjusted conversion relationship defines a conversion relationship between different grayscale values of the image frame and corresponding adjusted gain values; and performing gain processing on image data of the image frame according to the adjusted conversion relationship.

Abstract translation: 提供图像处理方法，图像数据的抗饱和方法和图像处理装置。 该图像处理方法包括：分析图像帧以获得对应于图像帧的灰度值的原始增益值，其中原始增益值大于1; 获取在默认灰度值和默认增益值之间记录转换关系的查找表，其中所述查找表用于对所述图像帧的图像数据执行抗饱和处理; 根据原始增益值，通过使用查找表对图像帧进行抗饱和处理，以获得图像帧的经调整的转换关系，其中调整的转换关系定义图像帧的不同灰度值与 相应的调整增益值; 并根据经调整的转换关系对图像帧的图像数据进行增益处理。

公开(公告)号：US09036087B2

公开(公告)日：2015-05-19

申请号：US14225441

申请日：2014-03-26

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Chen Su ,  Chung-Wen Hung

IPC: H04N9/64 ,  H04N5/57 ,  G09G5/02 ,  H04N21/431 ,  H04N21/44 ,  H04N21/4402

CPC classification number: H04N5/57 ,  G09G5/02 ,  H04N9/643 ,  H04N21/4318 ,  H04N21/44008 ,  H04N21/440263

Abstract: A device for image processing includes a video signal receiver, for receiving at least one video signal, wherein an image frame of the at least one video signal includes: a plurality of pixel groups; a color engine; and an output stage, coupled to the color engine, for outputting the adjusted at least one video signal. The color engine includes: a local adjusting unit, configured to locally adjust at least one of color hue, luminance factor and saturation of a specific pixel group of the pixel groups without adjusting any other pixel group of the pixel groups, wherein the specific pixel group has color hue in a predetermined range that is a part of a full range of color hue; and a global adjusting unit, configured to globally adjust at least one of color hue, luminance factor and saturation of each of the pixels of the image frame.

Abstract translation: 一种用于图像处理的装置包括用于接收至少一个视频信号的视频信号接收器，其中所述至少一个视频信号的图像帧包括：多个像素组; 彩色引擎 以及输出级，耦合到彩色引擎，用于输出所调整的至少一个视频信号。 彩色引擎包括：局部调整单元，被配置为在不调整像素组的任何其他像素组的情况下局部地调整像素组的特定像素组的色调，亮度因子和饱和度中的至少一个，其中特定像素组 具有作为全色范围色调的一部分的预定范围内的色调; 以及全局调整单元，被配置为全面地调整图像帧中的每个像素的色调，亮度因子和饱和度中的至少一个。