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    Method and image processing device for image blurring
    1.
    发明授权
    Method and image processing device for image blurring 有权

    公开(公告)号：US10929958B1

    公开(公告)日：2021-02-23

    申请号：US16684606

    申请日：2019-11-15

    Applicant: Novatek Microelectronics Corp.

    Inventor： Wan-Ching Tsai ,  Shu-Chun Lin

    IPC: G06T5/00 ,  G06T5/20

    Abstract: A method and an image processing device for image enhancement are proposed. The method includes the following steps. An input image is received. A curve set is applied on the input image to generate a resultant image, where the curve set includes a plurality pairs of weight functions and process functions, where a summation of a multiplication of the weight function and the process function in each of the pairs is zero, and where the weight function in each of the pairs is associated with low-pass filtering. An output image is generated according to the resultant image and the input image.

    IMAGE PROCESSING DEVICE AND METHOD THEREOF
    2.
    发明申请
    IMAGE PROCESSING DEVICE AND METHOD THEREOF 审中-公开
    图像处理装置及其方法

    公开(公告)号：US20150269904A1

    公开(公告)日：2015-09-24

    申请号：US14291016

    申请日：2014-05-30

    Applicant: Novatek Microelectronics Corp.

    Inventor： Wan-Ching Tsai

    IPC: G09G5/00

    CPC classification number: G09G5/02 ,  G09G2320/0242 ,  G09G2320/0266 ,  G09G2320/0693 ,  G09G2340/04 ,  G09G2360/16 ,  G09G2370/00

    Abstract: An image processing device and a method thereof are provided, and said device includes a valid bits detector and a compensator. The valid bits detector is configured to detect valid bits of an image input signal thereby outputting a correcting coefficient correspondingly. The compensator is coupled to the valid bits detector to receive the correcting coefficient, bit-compensating for the image input signal according to the correcting coefficient, thereby outputting an image output signal correspondingly.

    Abstract translation: 提供了图像处理装置及其方法，并且所述装置包括有效位检测器和补偿器。 有效位检测器被配置为检测图像输入信号的有效位，从而相应地输出校正系数。 补偿器耦合到有效位检测器以接收校正系数，根据校正系数对图像输入信号进行位补偿，从而相应地输出图像输出信号。

    Image processing circuit and image contrast enhancement method thereof
    5.
    发明授权
    Image processing circuit and image contrast enhancement method thereof 有权

    公开(公告)号：US10419708B2

    公开(公告)日：2019-09-17

    申请号：US14690482

    申请日：2015-04-20

    Applicant: Novatek Microelectronics Corp.

    Inventor： Wan-Ching Tsai ,  Chih-Chia Kuo

    IPC: H04N5/57 ,  H04N9/12 ,  G09G3/34

    Abstract: An image processing circuit and an image contrast enhancement method of the imaging processing circuit are provided. The image processing circuit includes an index generating unit, a data compensation unit, and a data gain unit. The index generating unit receives a plurality of pixel data of a first frame to provide a plurality of local curve indices corresponding to a plurality of display areas of a display panel. The data compensation unit selects parts of a plurality of gray-level transformation curves respectively corresponding to the pixel data according to the local curve indices, so as to regulate the pixel data and then provide a plurality compensated pixel data. The data gain unit determines a data gain according to a backlight duty cycle signal and regulates the compensated pixel data according to the data gain, so as to provide a plurality of enhanced pixel data.

    IMAGE PROCESSING CIRCUIT AND IMAGE CONTRAST ENHANCEMENT METHOD THEREOF
    7.
    发明申请
    IMAGE PROCESSING CIRCUIT AND IMAGE CONTRAST ENHANCEMENT METHOD THEREOF 有权
    图像处理电路和图像对比度增强方法

    公开(公告)号：US20160309112A1

    公开(公告)日：2016-10-20

    申请号：US14690482

    申请日：2015-04-20

    Applicant: Novatek Microelectronics Corp.

    Inventor： Wan-Ching Tsai ,  Chih-Chia Kuo

    IPC: H04N5/57 ,  H04N9/12

    Abstract: An image processing circuit and an image contrast enhancement method of the imaging processing circuit are provided. The image processing circuit includes an index generating unit, a data compensation unit, and a data gain unit. The index generating unit receives a plurality of pixel data of a first frame to provide a plurality of local curve indices corresponding to a plurality of display areas of a display panel. The data compensation unit selects parts of a plurality of gray-level transformation curves respectively corresponding to the pixel data according to the local curve indices, so as to regulate the pixel data and then provide a plurality compensated pixel data. The data gain unit determines a data gain according to a backlight duty cycle signal and regulates the compensated pixel data according to the data gain, so as to provide a plurality of enhanced pixel data.

    Abstract translation: 提供了一种成像处理电路的图像处理电路和图像对比度增强方法。 图像处理电路包括索引生成单元，数据补偿单元和数据增益单元。 索引生成单元接收第一帧的多个像素数据，以提供与显示面板的多个显示区域对应的多个局部曲线索引。 数据补偿单元根据局部曲线索引分别选择与像素数据对应的多个灰度级变换曲线的部分，以调整像素数据，然后提供多个补偿像素数据。 数据增益单元根据背光占空比信号确定数据增益，并根据数据增益调节补偿像素数据，以便提供多个增强像素数据。

    Image converting method and related image converting module
    10.
    发明授权
    Image converting method and related image converting module 有权

    公开(公告)号：US09613409B1

    公开(公告)日：2017-04-04

    申请号：US15012871

    申请日：2016-02-02

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Wan-Ching Tsai ,  Chao-Wei Ho ,  Chia-Jung Hsu ,  Chih-Chia Kuo

    IPC: G09G5/02 ,  G06T5/00 ,  G09G3/34

    CPC classification number: G06T5/009 ,  G06T2207/20208 ,  G09G3/3406 ,  G09G3/3426 ,  G09G2320/0626 ,  G09G2320/08 ,  G09G2340/06

    Abstract: An image converting method includes calculating a plurality of segment averages of pixel values in a plurality segments of an input image; acquiring the maximum among the segment averages as a first threshold; calculating a plurality of local averages of pixel values in adjacent segments of input image; acquiring the maximum among local averages as a second threshold; counting the number of pixel values exceeding first threshold in the segments as a plurality of first pixel counts and counting the number of pixel values exceeding second threshold in the segments as a plurality of second pixel counts; generating a specular map and a confidence according to the first pixel counts and the second pixel counts; mapping the input image according to the specular map, to generate an intermediate image; and blending the input image and the intermediate image according to the confidence, to generate an output image.

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