CN112840642A - 一种图像拍摄方法和终端设备 - Google Patents

一种图像拍摄方法和终端设备 Download PDF

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CN112840642A
CN112840642A CN201980066192.7A CN201980066192A CN112840642A CN 112840642 A CN112840642 A CN 112840642A CN 201980066192 A CN201980066192 A CN 201980066192A CN 112840642 A CN112840642 A CN 112840642A
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image
color information
pixel point
fusion
hdr
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CN112840642B (zh
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张俪耀
马靖
赵智彪
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/28—Indexing scheme for image data processing or generation, in general involving image processing hardware
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Image Processing (AREA)

Abstract

一种图像拍摄方法和终端设备。该方法包括：终端设备进入相机应用，启动摄像头，显示取景界面；终端设备将所述摄像头采集的原始图像转换成RGB图像，并将RGB图像的亮度降低到小于第一亮度或提高到大于第二亮度，得到第一图像；终端设备采用HDR技术将RGB图像转换成N帧HDR图像，N帧HDR图像每帧HDR图像的亮度不同，且在RGB图像的亮度降低到小于第一亮度时N帧HDR图像的亮度均大于第一亮度，或者在RGB图像的亮度提高到大于第二亮度时N帧HDR图像的亮度均小于第二亮度；终端设备将第一图像与N帧HDR图像中任意相同位置的像素点的颜色信息融合，得到最终图像。通过这种方式，有助于提高拍摄图像的质量。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN201980066192.7A 2018-10-11 2019-10-10 一种图像拍摄方法和终端设备 Active CN112840642B (zh)

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CN201811185480.8A CN111050143B (zh) 2018-10-11 2018-10-11 一种图像拍摄方法和终端设备
CN2018111854808 2018-10-11
PCT/CN2019/110377 WO2020073957A1 (zh) 2018-10-11 2019-10-10 一种图像拍摄方法和终端设备

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US20210385368A1 (en) 2021-12-09
EP3840369B1 (en) 2024-02-14
RU2758595C1 (ru) 2021-11-01
WO2020073957A1 (zh) 2020-04-16
CN111050143B (zh) 2021-09-21
EP3840369A1 (en) 2021-06-23
EP3840369A4 (en) 2021-10-06
US11595588B2 (en) 2023-02-28
CN112840642B (zh) 2022-06-10
CN111050143A (zh) 2020-04-21

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