公开(公告)号：US20110243427A1

公开(公告)日：2011-10-06

申请号：US12750632

申请日：2010-03-30

申请人： Meng-Chao Kao ,  Kuo-Long Tsao

发明人： Meng-Chao Kao ,  Kuo-Long Tsao

IPC分类号： G06K9/00

CPC分类号： G06T5/003 ,  G06F3/14 ,  G06T2207/10016 ,  G06T2207/20012 ,  G06T2207/20182 ,  G06T2207/20201 ,  G09G2320/066 ,  G09G2320/08 ,  G09G2320/106 ,  G09G2340/16 ,  G09G2360/12

摘要： An image processing device and a method thereof are provided. In the image processing method, an adjusting value is computed according to a pixel of a current image and a plurality of reference pixels nearby. In addition, a weighted coefficient is computed according to a gray-scale difference between the pixel of the current image and a pixel of a previous image. Further, a weighted adjusting value is computed according to the adjusting value and the weighted coefficient. Besides, the pixel of the current image is adjusted according to the weighted adjusting value to generate a pixel of an output image. Thereby, the current image is adjusted adaptively to increase the quality of the output image.

摘要翻译： 提供了一种图像处理装置及其方法。 在图像处理方法中，根据当前图像的像素和附近的多个参考像素来计算调整值。 此外，根据当前图像的像素与先前图像的像素之间的灰度差来计算加权系数。 此外，根据调整值和加权系数计算加权调整值。 此外，根据加权调整值来调整当前图像的像素以生成输出图像的像素。 从而，自适应地调整当前图像以增加输出图像的质量。

公开(公告)号：US07796832B2

公开(公告)日：2010-09-14

申请号：US11619389

申请日：2007-01-03

申请人： Meng-Chao Kao ,  Tzu-Chiang Shen

发明人： Meng-Chao Kao ,  Tzu-Chiang Shen

IPC分类号： G06K9/40 ,  H04N5/14

CPC分类号： G06T5/009

摘要： A dynamic contrast enhancement circuit (DCE circuit) includes a grayscale statistical unit, an operation unit and a transformation unit. Wherein, the grayscale statistical unit receives a frame and divides the grayscale distribution of the frame into a plurality of statistical intervals to count the number of pixels of every statistical interval and obtains a plurality of statistical values. When one of the statistical values is greater than a threshold value, the operation unit would adjust every the statistical value according to the difference value between the statistical value exceeding the threshold value and the threshold value. In this way, the transformation unit is able to produce a transformation data according to the adjusted statistical values, so as to perform a DCE processing on the frame.

摘要翻译： 动态对比度增强电路（DCE电路）包括灰度统计单元，操作单元和变换单元。 其中，灰度统计单元接收帧并将帧的灰度分布划分为多个统计间隔，以对每个统计间隔的像素数进行计数并获得多个统计值。 当统计值之一大于阈值时，操作单元将根据超过阈值的统计值与阈值之间的差值来调整每个统计值。 以这种方式，变换单元能够根据调整的统计值产生变换数据，以便对帧进行DCE处理。