Image shooting method and device, equipment and storage medium

An image capturing and image technology, applied in the field of image processing, can solve the problems of unable to provide dynamic range and image details, unable to better reflect the visual effect, etc., to achieve the effect of multiple dynamic range and image details, good visual effect

Active Publication Date: 2020-04-24
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The photos taken by the existing solution can easily cause the bright places to be overexposed and the dark places to be too dark in th

Method used

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  • Image shooting method and device, equipment and storage medium
  • Image shooting method and device, equipment and storage medium
  • Image shooting method and device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An embodiment of the present application provides an image processing method applied to an electronic device, figure 1 A schematic flow chart of an image processing method provided in the embodiment of the present application, such as figure 1 As shown, the method includes:

[0035] In step S101, the electronic device obtains a photographing instruction.

[0036] Here, the manner in which the electronic device obtains the photographing instruction may be through a voice command or manually turning on a photographing function button of the electronic device, which is not limited in this embodiment of the present application.

[0037] Step S102, the electronic device responds to the photographing instruction.

[0038] Here, the manner in which the electronic device responds to the photographing instruction may be to enter a photographing interface, or to photograph a preview picture.

[0039] Step S103, obtaining a first captured image through the camera module of the ...

Embodiment 2

[0057] An embodiment of the present application provides another image capturing method, which is applied to an electronic device. figure 2 A schematic flow chart of another image capturing method provided in the embodiment of the present application, such as figure 2 As shown, the method includes:

[0058] In step S201, the electronic device obtains a photographing instruction.

[0059] Step S202, controlling the light compensation element of the electronic device to light up with a third brightness value and obtaining a preview image through the camera module.

[0060] Here, the third luminance value is the same as the first luminance value. It can be understood that the process of obtaining a preview image corresponds to the pre-flash stage of flash photography. In the implementation process, the third luminance value and the first luminance value can be It is an empirical value, and it can also be determined based on the light of the surrounding environment.

[0061] ...

Embodiment 3

[0085] Taking pictures in low light requires the use of a flash to take clear photos. In the related art, if a flashlight is needed, only a photo is taken in the main flash stage. The photos taken in this way can easily lead to overexposure of bright places and insufficient brightness of dark places, and the dynamic range is too small, so that the shooting scene in the photo cannot be seen clearly.

[0086] Dynamic range refers to the brightness range of the subject, that is, the brightness span from the darkest point to the brightest point in the subject. In photography, difference is often used to quantify dynamic range. Every time the exposure is doubled or halved, it is called an increase or decrease of 1EV (Exposure Value, exposure level) the entire visible dynamic range of the real world, and all brightness values ​​​​in the real scene are expressed and stored in proportion.

[0087] In order to solve the problem that the dynamic range of photos taken by flashlights is...

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PUM

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Abstract

The embodiment of the invention discloses an image shooting method. The method comprises the steps: obtaining a shooting instruction; responding to the photographing instruction; acquiring a first acquired image through a camera module of electronic equipment; controlling a light compensation element of the electronic equipment to be lightened at a first brightness value, and obtaining a second acquired image through the camera module; controlling the light compensation element to be lightened at a second brightness value and obtaining a third acquired image through the camera module, whereinthe second brightness value is greater than the first brightness value; and synthesizing and storing a target image based on the first acquisition image, the second acquisition image and the third acquisition image. The embodiment of the invention further provides an image shooting device and equipment and a storage medium.

Description

technical field [0001] The embodiments of the present application relate to image processing technologies, and relate to but are not limited to an image capturing method, device, equipment, and storage medium. Background technique [0002] Taking pictures in low light requires the use of a flash to take clear photos. The flash photography is divided into two steps: one is the pre-flash stage. In this stage, the flash is turned on with a low current, and the flash can be turned on for a long time to continuously shoot multiple frames of images and perform automatic exposure (After Effect, AE) to achieve AE convergence. , even if the image reaches the expected exposure, according to the brightness ratio of the pre-flash and the main flash, calculate the exposure parameters that need to be set for the main flash. It will burn out the LED light, according to the exposure parameters calculated in the pre-flash stage and the flash in the main flash stage, one photo will be taken ...

Claims

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Application Information

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IPC IPC(8): H04N5/235
CPCH04N23/71H04N23/74
Inventor 周荣波
Owner LENOVO (BEIJING) CO LTD
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