Method and mobile terminal for generating high dynamic range images

A high dynamic range, mobile terminal technology, applied in the field of communications, can solve problems such as the inability to present high dynamic range effect images in real time

Active Publication Date: 2016-08-17
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method for generating a high dynamic range image and a mobile terminal to s

Method used

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  • Method and mobile terminal for generating high dynamic range images
  • Method and mobile terminal for generating high dynamic range images
  • Method and mobile terminal for generating high dynamic range images

Examples

Experimental program
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Embodiment 1

[0025] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for generating a high dynamic range image, which is applied to a mobile terminal. The mobile terminal includes a first camera and a second camera, and the method includes:

[0026] Step 101: Obtain a first image captured by a first camera of a subject during a first exposure time, and obtain a second image and a third image sequentially captured by a second camera of the subject during the first exposure time.

[0027] When the preview interface for shooting is detected, the parameter configuration information needs to be sent to the two cameras respectively, so that the first camera acquires the first image of the subject within the first exposure time, and the second camera during the first exposure time , Acquire the second image and the third image for the subject. The exposures of the three images acquired by the two cameras are different, and the three images are images for the same subj...

Embodiment 2

[0032] Such as figure 2 As shown, the second embodiment of the present invention provides a method for generating a high dynamic range image, which is applied to a mobile terminal. The mobile terminal includes a first camera and a second camera, and the method includes:

[0033] Step 201: Obtain a first image captured by the first camera of the subject during the first exposure time, and obtain a second image and a third image sequentially captured by the second camera of the subject during the first exposure time.

[0034] When the preview interface for shooting is detected, the parameter configuration information needs to be sent to the two cameras respectively. The parameter configuration information sent to the first camera and the second camera respectively includes the aperture, the exposure duration, and the exposure gain. The first parameter configuration information is sent to the first camera, and the second parameter configuration information and the third parameter conf...

Embodiment 3

[0130] The following is an embodiment of a mobile terminal provided in Embodiment 3 of the present invention. For details that are not described in detail in the embodiment of the mobile terminal, reference may be made to the above method embodiment.

[0131] Wherein, the mobile terminal includes a first camera and a second camera, such as Figure 4 As shown, the mobile terminal also includes:

[0132] The acquiring module 10 is configured to acquire a first image collected by a first camera of a subject during the first exposure time, and acquire a second image and a third image sequentially collected by the second camera of the subject during the first exposure time.

[0133] The processing module 20 is configured to perform image processing on the first image, the second image, and the third image acquired by the acquisition module 10 to generate a target high dynamic range image.

[0134] The first image, the second image, and the third image are respectively one of a normal exposu...

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Abstract

The invention provides a method and a mobile terminal for generating high dynamic range images. The mobile terminal comprises a first camera and a second camera. The method includes acquiring first images acquired by the first camera for shooting objects in first exposure time and acquiring second images and third images which are sequentially acquired by the second camera for the shooting objects in the first exposure time; carrying out image processing on the first images, the second images and the third images to generate the target high dynamic range images. The first images, the second images and the third images respectively are a type of normal exposure images, over-exposure images and under-exposure images. The method and the mobile terminal in an embodiment of the invention have the advantages that image processing is carried out according to the over-exposure images, the under-exposure images and the normal exposure images, accordingly, high dynamic range effects can be realized by each outputted image, and shooting experience can be enhanced for users.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method for generating a high dynamic range image and a mobile terminal. Background technique [0002] Compared with ordinary images, HDR (High-Dynamic Range) can provide more dynamic range and image details, which is closer to the image seen by the human eye. The general implementation of the existing HDR technology is: turn on the camera and switch to HDR mode, run the default 3A algorithm, click to take a photo, set different EV (Exposure Values), and grab a piece of raw RAW data with normal exposure , An overexposed RAW data, an underexposed RAW data, and then enter the image signal processing process to obtain a normal exposure YUV data, an overexposed YUV data, an underexposed YUV data, Synthesize a piece of YUV data using HDR algorithm, and compress and save it in JPEG format. [0003] Since a single camera cannot obtain image data of normal exposure, overex...

Claims

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Application Information

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IPC IPC(8): H04M1/02H04N5/232H04N5/235
CPCH04M1/0264H04N23/951H04N23/741
Inventor 殷求明
Owner VIVO MOBILE COMM CO LTD
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