Adjusting method and system of terminal camera flash lamp

Abstract

The invention provides an adjusting method and system of a terminal camera flash lamp. The method comprises the following steps that 1, the camera sensitivity Shigh is acquired when normal flash lamp photographing is performed; 2, a maximum current Imax needed by a camera when photographing is performed is calculated according to the camera sensitivity Shigh; 3, whether the maximum current Imax is larger than a maximum current Ihard supported by the terminal camera is judged, and the maximum current Ihard is a preset fixed value; 4, if the Imax is larger than the maximum current Ihard supported by the terminal camera, a photographing current is set to be I= Ihard, and the camera sensitivity Shigh is acquired again; if the Imax is smaller than or equal to the maximum current Ihard supported by the terminal camera, the next step is performed; 5, the maximum current Imax and the camera sensitivity Shigh serve as a current and camera sensitivity parameter to be written in the terminal camera, and one-time flash lamp photographing is completed. According to the adjusting method and system of the terminal camera flash lamp, the size of the current of the flash lamp is adjusted when photographing is performed according to the brightness condition of images before and after preflashing to achieve the purpose of controlling the brightness of the flash lamp; accordingly, on the condition that the flash lamp is turned on, the brightness of the images can be in accord to a certain extent, and the electric quantity is saved.

Description

technical field [0001] The present invention relates to terminal equipment photographing technology, in particular to a terminal camera flash adjustment method and system. Background technique [0002] A camera is a device that uses the principle of optical imaging to form an image and uses a film to record the image. Many devices capable of recording images have the characteristics of a camera. Medical imaging equipment, astronomical observation equipment, etc. A camera is an optical device used for photography. After the light reflected by the object to be photographed is focused by the photographic lens (objective lens) and the shutter controlling the exposure, the object to be photographed forms a latent image on the photosensitive material in the dark box, which is processed (that is, developed and fixed) to form a permanent image. images, this technique is called photography. Divided into general photography and professional video. [0003] However, existing termi...

AI Technical Summary

Problems solved by technology

[0004] (1) Under different ambient brightness, the same light source is supplemented, resulting in inconsistent image brightness, and the same mobile phone has different effects

[0005] (2) When the mobile phone is very close to the foreground, the flash light hits the foreground very brightly, so the exposure time is very short; but because the flash light cannot provide sufficient light to the background, the background is very dark, and the exposure time is short, which easily leads to bright foreground , the background is dark, resulting in a large visual contrast between light and dark, such as figure 1

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