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公开(公告)号：US20210118105A1
公开(公告)日：2021-04-22
申请号：US16660735
申请日：2019-10-22
Applicant: Novatek Microelectronics Corp.
Inventor： Lei Zhang , Yongchao Li , JianHua Liang
Abstract: A method and an image processing device for image color enhancement are proposed. The method includes the following steps. An input image having input pixels is received, where each of the input pixels includes a luminance component and two chrominance components. A saturation gain of each of the input pixels is determined according to the chrominance components thereof. The chrominance components of each of the input pixels are adjusted according to the saturation gain thereof so as to generate enhanced pixels. An enhanced image is outputted according to the enhanced pixels.
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Patent Agency Ranking
公开(公告)号：US10445583B2
公开(公告)日：2019-10-15
申请号：US15807600
申请日：2017-11-09
Applicant: Novatek Microelectronics Corp.
Inventor： Pengyuan Hu , Yongchao Li , Chun-Wei Chen , Chun Wang , Xin Huang
Abstract: An image processing method and an image processing apparatus that utilize scrolling text information and moving edge-pairs of an edge map to determine text regions in interpolated frame is introduced herein. Text blocks are detected according to the moving edges-pair of the edge map. Next, a first moving vector histogram and a second moving vector histogram are built according to the detected text blocks. An existence of scrolling text and motion vector of the scrolling text in the frames are determined according to the first and second moving vector histograms. A scrolling text region in at least one of the first frame and the second frame is determined in block line unit, and positions of each scrolling text pixels in an interpolated are determined according to the motion vector of the scrolling text and the scrolling text region in the at least one of the first frame and the second frame.
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公开(公告)号：US10943337B2
公开(公告)日：2021-03-09
申请号：US16427328
申请日：2019-05-30
Applicant: Novatek Microelectronics Corp.
Inventor： Shuyao Wang , Yongchao Li , YuanJia Du
Abstract: An image processing apparatus and method for a high dynamic range effect includes a conversion circuit, a specular detection circuit, and a blending circuit. The conversion circuit converts first pixel data of the current pixel of a current frame to a second pixel data, wherein a luminance of the second pixel data is lower than a luminance of the first pixel data. The specular detection circuit detects a specular degree of the current frame to produce a specular map, wherein the specular map includes a specular degree value of a current pixel. The blending circuit blends the first pixel data and the second pixel data according to the specular degree value of the current pixel to obtain blended pixel data of the current pixel.
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公开(公告)号：US20190130187A1
公开(公告)日：2019-05-02
申请号：US15807600
申请日：2017-11-09
Applicant: Novatek Microelectronics Corp.
Inventor： Pengyuan Hu , Yongchao Li , Chun-Wei Chen , Chun Wang , Xin Huang
CPC classification number: G06K9/00718 , G06K9/4604 , G06K9/4642 , G06K9/6212 , G06T7/77 , G06T2207/10016 , G06T2207/20072 , H04N7/0127 , H04N7/013 , H04N7/014 , H04N7/0142
Abstract: An image processing method and an image processing apparatus that utilize scrolling text information and moving edge-pairs of an edge map to determine text regions in interpolated frame is introduced herein. Text blocks are detected according to the moving edges-pair of the edge map. Next, a first moving vector histogram and a second moving vector histogram are built according to the detected text blocks. An existence of scrolling text and motion vector of the scrolling text in the frames are determined according to the first and second moving vector histograms. A scrolling text region in at least one of the first frame and the second frame is determined in block line unit, and positions of each scrolling text pixels in an interpolated are determined according to the motion vector of the scrolling text and the scrolling text region in the at least one of the first frame and the second frame.
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公开(公告)号：US11094044B2
公开(公告)日：2021-08-17
申请号：US16660735
申请日：2019-10-22
Applicant: Novatek Microelectronics Corp.
Inventor： Lei Zhang , Yongchao Li , JianHua Liang
Abstract: A method and an image processing device for image color enhancement are proposed. The method includes the following steps. An input image having input pixels is received, where each of the input pixels includes a luminance component and two chrominance components. A saturation gain of each of the input pixels is determined according to the chrominance components thereof. The chrominance components of each of the input pixels are adjusted according to the saturation gain thereof so as to generate enhanced pixels. An enhanced image is outputted according to the enhanced pixels.
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公开(公告)号：US20200167903A1
公开(公告)日：2020-05-28
申请号：US16427328
申请日：2019-05-30
Applicant: Novatek Microelectronics Corp.
Inventor： Shuyao Wang , Yongchao Li , YuanJia Du
Abstract: An image processing apparatus and method for a high dynamic range effect are provided. The image processing apparatus includes a conversion circuit, a specular detection circuit, and a blending circuit. The conversion circuit converts first pixel data of the current pixel of a current frame to a second pixel data, wherein a luminance of the second pixel data is lower than a luminance of the first pixel data. The specular detection circuit detects a specular degree of the current frame to produce a specular map, wherein the specular map includes a specular degree value of a current pixel. The blending circuit blends the first pixel data and the second pixel data according to the specular degree value of the current pixel to obtain blended pixel data of the current pixel.
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