Backlight photographing method and mobile terminal

A mobile terminal and backlight technology, applied in the field of communications, can solve the problems of unclear portraits and incorrect colors.

Active Publication Date: 2017-01-11
VIVO MOBILE COMM HANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a backlight photographing method and a mobile terminal to solve the problems of incorrect colors and unclear portraits when the current photographed object includes a human face when photographing in a backlit scene

Method used

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  • Backlight photographing method and mobile terminal
  • Backlight photographing method and mobile terminal

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to figure 1 , which is a flow chart of a backlight photographing method provided in Embodiment 1 of the present invention, which is applied to a mobile terminal with a first camera and a second camera, and the method may specifically be as follows:

[0036] Step 101, when the first camera and the second camera are in a preview state, perform object detection and brightness detection on a shooting scene.

[0037] In a specific implementation, the mobile terminal is equipped with at least two cameras, and multiple images can be obtained synchronously or asynchronously based on the at least two cameras. Of course, the mobile terminal may also be equipped with three or more cameras, which is not limited in this embodiment of the present invention. For ease of description, the following mainly uses two cameras as an example to describe the embodiment of the present invention.

[0038] In a specific application, the first camera and the second camera of the mobile ter...

Embodiment 2

[0053] refer to figure 2 , which is a flow chart of a backlight photographing method provided in Embodiment 2 of the present invention, which is applied to a mobile terminal with a first camera and a second camera, and the method may specifically be as follows:

[0054] Step 201, when the first camera and the second camera are in the preview state, perform object detection and brightness detection on the shooting scene.

[0055] In the embodiment of the present invention, the mobile terminal enters the preview state when the user takes pictures. In the preview state, at least two cameras of the mobile terminal can be controlled to perform object detection and brightness detection.

[0056] Step 202, when it is detected that the shooting scene is a backlit scene and includes a human face, respectively control the first camera and the second camera to capture images of the shooting scene in a first exposure mode and a second exposure mode.

[0057] In the preview mode, the fi...

Embodiment 3

[0113] refer to image 3 , shows a structural block diagram of a mobile terminal 300 according to Embodiment 4 of the present invention. The mobile terminal 300 can realize the details of the backlight photographing method in Embodiment 1 to Embodiment 2, and achieve the same effect. The mobile terminal includes a first camera and a second camera, and the mobile terminal 300 may include a preview mode entry module 301, an exposure parameter collection module 302, a photographing instruction receiving module 303, a first image obtaining module 304, and a second image obtaining module 305 and target image generation module 306.

[0114] The preview mode enters module 301, which is used to perform object detection and brightness detection on the shooting scene when the first camera and the second camera are in the preview state;

[0115] The exposure parameter collection module 302 is configured to control the first camera and the second camera to collect the shooting scene in t...

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Abstract

An embodiment of the invention provides a backlight photographing method and a mobile terminal. The method includes the steps: detecting objects and brightness of a scene when a first camera and a second camera are in a preview state; respectively controlling the first camera and the second camera to acquire images of the scene in a first exposure mode and a second exposure mode when detecting the scene is a backlight scene including human faces; receiving photographing instructions inputted by a mobile terminal user; acquiring a first image photographed by the first camera according to the first exposure mode; acquiring a second image photographed by the second camera according to the second exposure mode; generating a target image based on the first image and the second image. The method solves the problems of incorrect color and unclear images of current photographing objects with human faces during photographing in the backlight scene.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a backlight photographing method and a mobile terminal. Background technique [0002] With the popularity of digital cameras and various mobile terminals equipped with cameras, taking digital images has become commonplace in people's lives. When shooting, it is often encountered that the target object must be backlit. Images captured in this situation often suffer from a loss of detail in the highlights or shadows of the image, resulting in greatly compromised image quality. [0003] At present, the processing method for shooting backlit scenes is: use HDR (High-Dynamic Range, high dynamic range image) algorithm to shoot, but if there are special parts in the scene, such as portraits, faces, etc., then use HDR The photos synthesized by the algorithm may change the color of the portrait. The existing backlight scene processing algorithm, in the case of special parts such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/62H04N23/611H04N23/71H04N23/73
Inventor 胡鹏翔王兆丰邱靖
Owner VIVO MOBILE COMM HANGZHOU CO LTD
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