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Photometric method and mobile terminal

A mobile terminal and regional technology, applied in the field of communication, can solve problems such as not being able to meet the needs of picture shooting, exposure errors, etc.

Active Publication Date: 2018-11-30
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a light metering method and a mobile terminal to solve the problem that the existing light metering is easy to cause exposure errors and cannot meet the needs of picture shooting

Method used

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  • Photometric method and mobile terminal
  • Photometric method and mobile terminal
  • Photometric method and mobile terminal

Examples

Experimental program
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Effect test

no. 1 example

[0029] This embodiment discloses a light metering method, which is applied to a mobile terminal including a first camera and a second camera, combining figure 1 Shown, including:

[0030] Step 101: In the process that the first camera collects the preview image and outputs it to the photo preview interface, acquire the target photometry area of ​​the preview image.

[0031] When the camera is turned on and the mobile terminal is in the photo preview interface, the camera will continuously collect the external scene, obtain a preview image, and output it to the photo preview interface. The preview image is displayed in the photo preview interface, and the first camera captures and outputs the preview image The process to the photo preview interface includes the process of collecting the external scene by the first camera, processing the preview image, sending the preview image to the display screen, and displaying the preview image collected by the first camera in the photo preview i...

no. 2 example

[0047] This embodiment discloses a light metering method, which is applied to a mobile terminal including a first camera and a second camera, combining figure 2 Shown, including:

[0048] Step 201: In the process of the first camera collecting the preview image and outputting it to the photo preview interface, obtain the target metering area of ​​the preview image.

[0049] When the camera is turned on and the mobile terminal is in the photo preview interface, the camera will continuously collect the external scene, obtain a preview image, and output it to the photo preview interface. The preview image is displayed in the photo preview interface, and the first camera captures and outputs the preview image The process to the photo preview interface includes the process of collecting the external scene by the first camera, processing the preview image, sending the preview image to the display screen, and displaying the preview image collected by the first camera in the photo preview ...

no. 3 example

[0080] This embodiment discloses a light metering method, which is applied to a mobile terminal including a first camera and a second camera, combining image 3 Shown, including:

[0081] Step 301: During the process of the first camera collecting the preview image and outputting it to the photo preview interface, obtain the target metering area of ​​the preview image.

[0082] When the camera is turned on and the mobile terminal is in the photo preview interface, the camera will continuously collect the external scene, obtain a preview image, and output it to the photo preview interface. The preview image is displayed in the photo preview interface, and the first camera captures and outputs the preview image The process to the photo preview interface includes the process of collecting the external scene by the first camera, processing the preview image, sending the preview image to the display screen, and displaying the preview image collected by the first camera in the photo previ...

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Abstract

The invention provides a light measurement method and a mobile terminal. The method is applied to a mobile terminal comprises a first camera and a second camera and comprises the following steps: in a process of the first camera to collect a preview image and output the preview image to a shooting preview interface, obtaining a target light measurement area of the preview image; obtaining a target field depth range of the target light measurement area detected by the second camera; based on the target field depth range, adjusting the light measurement weight of the preview image; and based on the adjusted light measurement weight, performing light measurement on the preview image. The light measurement accuracy is improved, and light measurement data better satisfying actual developing demands are obtained to realize subsequent reasonable exposure and ensure the shooting effect.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a photometry method and a mobile terminal. Background technique [0002] The light metering system of a digital camera measures the intensity of light reflected by the subject through the lens-TTL (Through The Lens) metering. The light metering sensor is placed in the photographic light path, and the light is reflected from the mirror to the light metering element for light metering. The measured light intensity data is transmitted to the camera's processor. After the automatic exposure calculation process, the exposure combination is determined, that is, the combination of the shooting aperture and shutter speed, and then the camera is taken according to the aperture and shutter value given by the camera. Take pictures with accurate exposure. [0003] According to the different areas, areas, and calculation weights measured by the metering sensor within the viewing are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00
CPCH04N17/002
Inventor 殷求明
Owner VIVO MOBILE COMM CO LTD