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Local HDR implementation method and system

An implementation method and system implementation technology, applied in the field of image processing, can solve problems such as local HDR processing in some areas of the image

Inactive Publication Date: 2016-09-21
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a local HDR implementation method and system for the technical problem that the traditional technology cannot perform local HDR processing on some areas of the image

Method used

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  • Local HDR implementation method and system
  • Local HDR implementation method and system

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Experimental program
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Embodiment 1

[0027] In order to solve the technical problem that the traditional technology cannot perform local HDR processing on some areas of the image, the present invention provides a method for implementing partial HDR in Embodiment 1; figure 1 It is a schematic flow chart of Embodiment 1 of the implementation method of local HDR in the present invention, as figure 1 As shown, the following steps may be included:

[0028] Step S110: Obtain the current preview frame of the image acquisition device;

[0029] Step S120: performing area selection on the current preview frame to obtain one or more partial exposure areas of the current preview frame;

[0030] Step S130: According to the regional grayscale data of the partial exposure region, perform HDR composition processing on the pixels in the partial exposure region to obtain a partial HDR image.

[0031] Specifically, unlike the traditional HDR (High-Dynamic Range image: High-Dynamic Range) which only exposes all pixels of a frame o...

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Abstract

The invention relates to a local HDR implementation method and system, and the method comprises the following steps: obtaining a current preview frame of image obtaining equipment; carrying out the region selection of the current preview frame, and obtaining one or more local exposure region of the current preview frame; carrying out the HDR synthesis processing of pixels of a local exposure region according to the regional gray scale data of the local exposure region, and obtaining a local HDR image. When a user obtains an image of a scene with a large light contrast through the image obtaining equipment, the method and system can select the local HDR function, and select a plurality of exposure regions. According to a part of selected regions with the exposure values to be adjusted, the method and system carry out the HDR photographing of the region exposure values to be adjusted, and can obtain the image with the local HDR effect. The method and system can carry out local HDR processing of a part of region of the image according to the actual demands of a user.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and system for realizing partial HDR. Background technique [0002] HDR (High-Dynamic Range: High-Dynamic Range) is mainly suitable for scenes with large light contrast or backlighting. The shooting principle is to take photos with different exposure values ​​at one time, and finally get a photo with little light contrast or a photo with not very dark light. [0003] During the implementation process, the inventor found that at least the following problems existed in the traditional technology: when shooting some scenes with relatively large light contrast, such as the upper and lower scenes of the desk (the light above the desk is brighter, and the light below the desk is darker) ), landscape photos with sunlight (the light above the sun is brighter, and the light below the sun is darker), you only need to make the darker areas brighter, without changi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N5/232H04N5/355
CPCH04N23/80H04N23/741H04N25/57
Inventor 刘博
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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