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    IMAGE PROCESSING CIRCUIT AND IMAGE CONTRAST ENHANCEMENT METHOD THEREOF
    12.
    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 device and image processing integrated circuit
    13.
    发明授权
    Image device and image processing integrated circuit 有权

    公开(公告)号：US11212434B2

    公开(公告)日：2021-12-28

    申请号：US16879771

    申请日：2020-05-21

    Applicant: Novatek Microelectronics Corp.

    Inventor： Chih-Chia Kuo ,  Chao Yung Liu ,  Wei-Jen Lo

    IPC: H04N5/232

    Abstract: An image device and an image processing integrated circuit (IC) of the image device are provided. The image device includes a camera module, a display panel, a central processing IC, and an image processing IC. Based on a control of the central processing IC, the image processing IC decides whether to pre-process an output of the camera module and provide a pre-processed result to the central processing IC, or provide the output of the camera module directly to the central processing IC. Based on the control of the central processing IC, the image processing IC decides whether to post-process an output of the central processing IC and provide a post-processed result to the display panel, or provide the output of the central processing IC directly to the display panel.

    Non-transitory storage medium and apparatus for processing source image to generate target image
    15.
    发明授权
    Non-transitory storage medium and apparatus for processing source image to generate target image 有权

    公开(公告)号：US10158839B2

    公开(公告)日：2018-12-18

    申请号：US16005711

    申请日：2018-06-12

    Applicant: Novatek Microelectronics Corp.

    Inventor： Chieh-Cheng Chen ,  Chih-Chia Kuo

    IPC: H04N13/00 ,  H04N5/45 ,  H04N13/122 ,  H04N13/156 ,  G06T1/20 ,  H04N13/106

    Abstract: An apparatus including a processor and a non-transitory storage medium is provided. The non-transitory storage medium includes a program code executable by the processor. The apparatus is configured to execute the program code with the processor for processing a source image to generate a target image. The target image includes a plurality of target pictures, and the program code includes: a first code segment, configured to separate the source image into a first image comprising a first part of the source image and a second image comprising a second part of the source image; a second code segment, configured to process the first image to obtain a plurality of target first pictures according to a first setting; a third code segment, configured to process the second image to obtain a plurality of target second pictures according to a second setting; and a fourth code segment, configured to combine each of the target first pictures with a corresponding one of the target second pictures to obtain the plurality of target pictures.

    Artifact reduction method and apparatus and image processing method and apparatus
    17.
    发明授权
    Artifact reduction method and apparatus and image processing method and apparatus 有权

    公开(公告)号：US09756306B2

    公开(公告)日：2017-09-05

    申请号：US14201938

    申请日：2014-03-10

    Applicant: Novatek Microelectronics Corp.

    Inventor： Shih-Sung Wen ,  Chih-Chia Kuo

    IPC: G06T5/00 ,  H04N9/64 ,  H04N9/77 ,  H04N5/21

    CPC classification number: H04N9/646 ,  G06T5/002 ,  H04N5/21 ,  H04N9/77

    Abstract: Artifact reduction method and apparatus, and image processing method and apparatus are provided. The artifact reduction apparatus includes a scaling-down unit, a buffer unit, an artifact detection unit, a scaling-up unit and a filter unit. The scaling-down unit scales down a resolution of a current original image frame to obtain a current low-resolution image frame. The artifact detection unit performs an artifact detection to the current low-resolution image frame to obtain low-resolution weights in accordance with a relation of the current low-resolution image frame and a previous low-resolution image frame provided by the buffer unit. The scaling-up unit scales up a number of the low-resolution weights to obtain a high-resolution weights. By using the high-resolution weights, the filter unit performs an image processing procedure to the current original image frame for reducing artifact of the current original image frame and obtaining an adjusted image frame.

    METHOD AND APPARATUS FOR PROCESSING SOURCE IMAGE TO GENERATE TARGET IMAGE
    18.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING SOURCE IMAGE TO GENERATE TARGET IMAGE 有权

    公开(公告)号：US20170111629A1

    公开(公告)日：2017-04-20

    申请号：US15191514

    申请日：2016-06-23

    Applicant: Novatek Microelectronics Corp.

    Inventor： Chieh-Cheng Chen ,  Chih-Chia Kuo

    IPC: H04N13/00 ,  H04N5/45 ,  H04N13/04

    CPC classification number: H04N13/122 ,  G06T1/20 ,  H04N5/45 ,  H04N13/106 ,  H04N13/156

    Abstract: An apparatus for processing a source image to generate a target image is provided. The target image includes a plurality of target pictures. The apparatus includes a first image processing circuit and a second image processing circuit. The first image processing circuit separates the source image into a first image including a first part of the source image and a second image including a second part of the source image. The second image processing circuit processes the first image to obtain a plurality of target first pictures according to a first setting, process the second image to obtain a plurality of target second pictures according to a second setting, and combine each of the target first pictures with a corresponding one of the target second pictures to obtain the plurality of target pictures. A method for processing a source image to generate a target image is also provided.

    Image converting method and related image converting module
    19.
    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.

    COLOR TRANSLATION METHOD AND COLOR TRANSLATION APPARATUS
    20.
    发明申请
    COLOR TRANSLATION METHOD AND COLOR TRANSLATION APPARATUS 有权
    彩色翻译方法和彩色翻译装置

    公开(公告)号：US20140161350A1

    公开(公告)日：2014-06-12

    申请号：US13759068

    申请日：2013-02-05

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Wei-Chi Su ,  Chih-Chia Kuo

    IPC: G06T5/00

    CPC classification number: H04N1/60 ,  H04N1/6002 ,  H04N1/6058

    Abstract: A color translation method and a color translation apparatus adapted to map a data point from a first color space to a second color space are provided. At least four color axes coordinating with a plurality of first reference points and a plurality of second reference points corresponding to the first reference points are used to divide the first color space and second color space into a plurality of first sub-spaces and a plurality of second sub-spaces. A target first sub-space where the data point is located is found, and then a corresponding target second sub-space is also found. According to a positional relationship between the data point and the first reference points which define the target first sub-space, an interpolation operation is applied to the second reference points which define the target second sub-space so as to obtain a mapped point in the second color space.

    Abstract translation: 提供了一种适于将数据点从第一颜色空间映射到第二颜色空间的颜色翻译方法和颜色翻译装置。 使用与多个第一参考点协调的至少四个颜色轴和对应于第一参考点的多个第二参考点将第一颜色空间和第二颜色空间分成多个第一子空间和多个 第二个子空间。 找到数据点所在的目标第一子空间，然后找到相应的目标第二子空间。 根据定义目标第一子空间的数据点和第一参考点之间的位置关系，对定义目标第二子空间的第二参考点应用内插操作，以获得目标第二子空间中的映射点 第二色空间。

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