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Image processing method and electronic device

A technology of image processing and electronic equipment, which is applied in the field of image processing, can solve problems such as poor experience, inaccurate focus adjustment, and inability to adjust the focus conveniently and freely, achieving the effect of convenient and free focus, convenient and free adjustment, and improving user experience

Active Publication Date: 2014-05-14
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are at least the following problems in the prior art: the existing manual focus adjustment method requires the user, as an operator who adjusts the focus distance, to perform manual operations on the viewfinder interface to reasonably adjust the focus distance, while the automatic focus adjustment method only adjusts the focus distance at a wide angle. The focal length adjustment is not accurate, which makes it difficult for users to adjust the focal length conveniently and freely in some cases, resulting in poor experience for photographers when using electronic devices.

Method used

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  • Image processing method and electronic device
  • Image processing method and electronic device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] figure 1 It is a flow chart of the image processing method provided in Embodiment 1 of the present application.

[0066] refer to figure 1 As shown, the image processing method provided in the embodiment of the present application is applied to an electronic device with an image acquisition module, and the image acquisition module includes an imaging module and a focus adjustment unit. The image processing method provided in the embodiment of the application includes:

[0067] Step S11: Extracting a first image region corresponding to the first subject from the first preview image acquired by the image acquisition module.

[0068] In the embodiment of the present application, the first image area may be the focus area or other areas outside the focus area. The first preview image can be used to determine whether the focus needs to be adjusted. The first subject can be the person being photographed. At this time, the first image area can be the whole body of the person...

Embodiment 2

[0079] figure 2 It is a flow chart of the image processing method provided in Embodiment 2 of the present application.

[0080] refer to figure 2 As shown, the image processing method provided in the embodiment of the present application includes:

[0081] Step S21: Extracting a first image area corresponding to the first subject from the first preview image acquired by the image acquisition module.

[0082] Step S22: Generate a depth map corresponding to the first preview image, the pixels in the depth map correspond to the pixels in the first preview image one by one, and the depth map includes each pixel The depth information of the distance from the image acquisition module.

[0083] While generating the first preview image, a depth map corresponding to the first preview image is generated. The depth map and the first preview image are based on the same shooting environment, shooting scene and shooting progress, and are completely synchronized and corresponding to the...

Embodiment 3

[0090] image 3 It is a flow chart of the image processing method provided in Embodiment 3 of the present application.

[0091] refer to image 3 As shown, the image processing method provided in the embodiment of the present application includes:

[0092] Step S31: Extracting a first image area corresponding to the first subject from the first preview image acquired by the image acquisition module.

[0093] Step S32: acquiring depth information of each pixel in the first image area.

[0094] Step S33: Detect the change value of the depth information, and judge whether the change value meets the first preset condition.

[0095] Step S34: If the change value meets the first preset condition, when the change value is a positive change value, make the focus adjustment unit in the image acquisition module according to the change value of the preset depth information and The corresponding relationship of the focal length adjustment value, increasing the focal length of the imag...

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Abstract

The invention discloses an image processing method and an electronic device. A first image area corresponding to a first main body is extracted in a first preview image obtained from an image acquisition module; depth information of various pixels in the first image area is acquired; a change value of the depth information is detected, and it is judged whether the change value accords with a first preset condition; if the change value accords with the first preset condition, a focus adjusting unit in the image acquisition module is utilized to adjust the focus length of an imaging module in the image acquisition module according to the change value, and a second preview image is acquired after the focus length is adjusted. Thus the shot person serves as an operation person for adjusting the focus length, and the depth information of the pixels in a corresponding area of the preview image is changed by actions, so that the focus length is reasonably adjusted through the image acquisition module according to the change value of the depth information, a user can conveniently adjust the focus length at will during self-shooting, the user does not need to face to a framing interface and conduct manual operation, and therefore user experience is improved.

Description

technical field [0001] The present application relates to the field of image processing, in particular to an image processing method and electronic equipment. Background technique [0002] With the development of science and technology, people are increasingly using the shooting functions of mobile phones, tablet computers, smart glasses, cameras and other electronic devices in their daily leisure and entertainment life, which requires more and more shooting functions of electronic devices. high. [0003] When using the shooting function, the focal length must be adjusted precisely so that the incident light of the lens can be focused on the photosensitive element of the camera, so that the captured image can achieve high definition and better imaging effect. At present, when electronic devices are shooting, the focus is mainly adjusted manually or automatically. Manual focus adjustment refers to adjusting the focus through the zoom ring or the drag The focal position bein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
Inventor 黄茂林高非靳玉茹
Owner LENOVO (BEIJING) CO LTD