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Method and device for taking picture

A technology of area and exposure value, applied in the field of communication, can solve the problems of uneven brightness of pictures and large differences in reflection, and achieve the effect of solving large differences in reflection and uniform brightness of pictures

Inactive Publication Date: 2015-12-30
ZTE CORP
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  • Claims
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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a method and device for taking pictures, which is used to solve the problem in the prior art that the brightness of the picture taken by the flash is uneven due to the large difference in the reflection of the flash fill light on the near view and the distant view. question

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  • Method and device for taking picture
  • Method and device for taking picture

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Embodiment Construction

[0045] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention. For the sake of clarity and simplicity, detailed descriptions of known functions and constructions in the devices described herein will be omitted when it may obscure the subject matter of the present invention.

[0046] The main purpose of the embodiments of the present invention is to provide a method and device for taking pictures. In the main flash state, the exposure values ​​of the normal exposure area, overexposed area, and underexposed area of ​​the pre-flash are respectively converged to normal, and three different exposures are obtained. value of the picture, and the areas where the exposure values ​​converged normally in the three pictures with...

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Abstract

The invention discloses a method and a device for taking a picture. The method comprises the steps of converging the exposure values of a normally-exposed area, an overexposed area and an underexposed area determined in pre-flashing into normal ones to obtain three pictures of different exposure values when a flash lamp flashes formally, and synthesizing the areas of which the exposure values converge normally in the three pictures of different exposure values into one picture. According to the invention, the overexposed area and the underexposed area in pre-flashing are processed into normally-exposed areas, the areas after processing are reintegrated, and finally, a picture with uniform brightness is obtained. Therefore, the shooting effect of the flash lamp is improved greatly.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for taking pictures. Background technique [0002] With the development of photosensitive devices of various terminal cameras, the photo effect under dark light can more and more reflect the technical advantages of photosensitive devices. As an important supplementary light module for taking pictures in low light, the flash is becoming more and more important. [0003] At present, when a terminal uses a flash to take pictures, it is generally divided into two parts: a pre-flash and a main flash. The pre-flash stage calculates the exposure value AE of the photometric target (the focused object to be photographed) at the LED brightness of the pre-flash. When the main flash is in use, the AE value of the main flash can be directly obtained by making the difference with the direct brightness difference with the pre-flash. The pre-flash and main f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235
CPCG03B15/00
Inventor 李黎国李振华张文娜
Owner ZTE CORP
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