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Method and device for improving effect of camera shooting in dark

A camera, a technology for capturing images, applied in the field of digital photography, can solve the problems of inability to take photos that meet the needs of users, and users miss the opportunity to take photos, and achieve high brightness and improve the effect of dark shooting effects.

Inactive Publication Date: 2013-04-17
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the limitation of the size of the photoreceptor and the light-sensing characteristics of most cameras, in a dark environment, it is impossible to take photos that meet the needs of users, causing users to miss many opportunities to take pictures

Method used

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  • Method and device for improving effect of camera shooting in dark

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Experimental program
Comparison scheme
Effect test

Embodiment

[0035] The shooting principle of digital camera:

[0036] The image to be shot is mapped to the photoreceptor through the lens, and the photoreceptor converts the light signal into an analog electrical signal. The photoreceptor is the core component of the digital camera, and its quality determines the imaging quality of the digital camera. The photoreceptor is usually small in size and contains hundreds of thousands or even tens of millions of photodiodes with light-sensing properties. Each photodiode is a pixel. When there is light, the photodiode will generate charge accumulation. The more light there is, the more charge will accumulate. These accumulated charges will be converted into corresponding pixel data.

[0037] The A / D converter quantizes the brightness or color value of each pixel into several levels, and this level is the color depth of the digital camera. For photoreceptors with a digital interface, no A / D converter is required.

[0038] The A / D converter conv...

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Abstract

The invention provides a method and a device for improving an effect of a camera shooting in dark. The method comprises the following steps of: setting a maximum limit value of light sensitivity of a sensor of the camera; setting a lower limit threshold value of image brightness of a picture; judging whether the brightness of a viewed image is less than the lower limit threshold value of the image brightness; if not, entering into a normal photo mode; and if yes, entering into a darkness photo mode. According to the technical scheme provided by the embodiment of the invention, the ambient brightness is judged through the brightness of the viewed image, and if the ambient brightness is judged to be at a low light state, the light sensitivity of the sensor is adjusted to be the maximum limit value, an exposure time is adjusted, and the brightness of the photo can meet the required brightness, so that the effect of shooting in dark is improved, and the photo with higher brightness is obtained under the condition without changing the sensor of the camera.

Description

technical field [0001] The invention relates to the technical field of digital photography, in particular to a method and a device for improving the effect of dark shooting by a camera. Background technique [0002] With the development of information technology and electronic technology, digital products are more and more widely used in various fields of life and work. In addition to digital cameras, various smart terminals such as mobile phones and computers also have camera functions, so cameras are widely used. Applied on various smart terminals, users have higher and higher requirements for taking pictures. At present, due to the limitation of the size of the photoreceptor and the light-sensing characteristics of most cameras, in a dark environment, it is impossible to take pictures that meet the needs of users, causing users to miss many opportunities to take pictures. [0003] At present, in a darker environment, improving the shooting effect of the camera is still a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/235
Inventor 张学勇
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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