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A flash control method and device

A technology of flash and fill light, applied in the digital field, can solve problems such as unsatisfactory effects, underexposure of photos, poor quality of photos, etc., and achieve the effects of reducing power consumption of photos, prolonging standby time and improving quality

Active Publication Date: 2015-08-19
DRNC HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of using the prior art to realize the above-mentioned flash control, the flash intensity of the flash is fixed when flashing, which will inevitably lead to the result that the photos taken will be underexposed due to the dark environment, or The environment is not very dark and overexposed, resulting in poor quality photos and unsatisfactory results

Method used

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  • A flash control method and device
  • A flash control method and device
  • A flash control method and device

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] An embodiment of the present invention provides a flash control method, such as figure 1 As shown, the method includes:

[0041] S101. The flash control device acquires the statistical gray value of the preview image.

[0042] With the continuous development of mobile phone technology, the camera function of mobile phones has become an essential function of high-end mobile phones. In the camera function of the mobile phone, in order to improve the cam...

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Abstract

A method and an apparatus for controlling a flash are disclosed. This ensures the balance between a pre-flash, a flash, and ambient light and improves picture quality. The method includes: obtaining a statistical gray value of a preview image. If the statistical gray value of the preview image is less than a preset threshold, a corresponding fill light parameter is searched for in a preset dynamic fill light table according to the statistical gray value of the preview image and the fill light drive current is set according to the fill light parameter. The fill light drive current is configured to drive a flash lamp to fire a pre-flash, a corresponding exposure drive current in the preset exposure parameter table is configured according to the fill light parameter, and the exposure drive current is configured to drive the flash lamp to flash.

Description

technical field [0001] The invention relates to the field of digital technology, in particular to a flash control method and device. Background technique [0002] With the continuous development of mobile phone technology and the gradual enrichment of material life, people are increasingly emphasizing the multimedia experience of mobile phones. Cameras have become an essential function of mid-to-high-end mobile phones. Multimedia refers to the ability to simultaneously acquire, process, edit, store and display The technology of two or more different types of information media. In the camera function of the mobile phone, in order to improve the camera experience, a flash function is integrated on the camera, so that in a scene with relatively dark ambient light, the flash can increase the exposure to take better photos. [0003] The general working process of the camera flash in the prior art is divided into two steps: pre-flash and flash. Pre-flash is to emit a faint light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B15/05
CPCG03B7/16H04N5/2354H04N5/2256H04N23/56H04N23/74
Inventor 高云山
Owner DRNC HLDG INC
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