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A method and terminal for image pulling focus processing

A processing method and picture technology, applied in image data processing, image enhancement, image analysis, etc., can solve the problems of fixed-focus lens camera terminal unable to obtain photos with zoom effect, poor user experience satisfaction, etc., to improve satisfaction efficiency, cost reduction

Active Publication Date: 2020-04-28
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: a camera terminal only equipped with a fixed-focus lens cannot obtain a photo with a zoom effect, and user experience satisfaction is poor. A method for processing a zoom image and a terminal are provided.

Method used

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  • A method and terminal for image pulling focus processing
  • A method and terminal for image pulling focus processing
  • A method and terminal for image pulling focus processing

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0090] This embodiment provides a method for zooming in on a picture, which is suitable for zooming in on any picture, including photos taken with a fixed-focus lens or a zoom lens. The picture effect obtained after the zooming processing can reach the zooming photo effect obtained by zooming and shooting with a zoom lens. See image 3 As shown, the image pulling focus processing method in this embodiment includes:

[0091] S301: Obtain a copy picture of the original picture.

[0092] The original picture in this embodiment may be a picture taken by a camera, or a picture or a picture local to the terminal, or obtained from another terminal or network. The original picture is copied to obtain a copy picture of the original picture.

[0093] It should be understood that, in some application scenarios, the original picture may not be copied, but the original picture may be directly used. For example, when the weighted value of the original picture is 0 in the final weighted s...

no. 2 example

[0152] In this embodiment, on the basis of the foregoing embodiments, the terminal is a mobile phone, and the picture to be processed by pulling focus is an original picture as an example for description. The process of pulling focus on a photo is as follows:

[0153] Take an ordinary original photo (src) with a mobile phone, copy the original photo to get a copy photo (C). original photo see Figure 9 shown.

[0154] The user selects a special effect mode, assuming that the user selects a daytime special effect mode.

[0155] According to the selection of the user, different parameters for pulling the focus are set. Different special effect methods correspond to different focus parameters, such as zoom factor (kl and kw), weight W0(j), and so on. When the daytime special effect mode is set, the value range of the zoom factor (kl and kw) is set to be greater than 1 and less than 2, and W0(j) is set to 1. When it is set as a night special effect, the value range of the zoo...

no. 3 example

[0160] This embodiment provides a terminal, the terminal may be a terminal with a camera function, or a terminal without a camera function, see Figure 11 shown, which includes:

[0161] The picture acquiring module 111 is used to acquire the copy picture of the original picture.

[0162] The original picture in this embodiment may be a picture taken by a camera, or a picture or a picture local to the terminal or acquired by the picture acquisition module 111 from other terminals or a network. The original picture is copied to obtain a copy picture of the original picture. The copied picture here is exactly the same as the original picture, and you can choose any one for subsequent use.

[0163] The parameter acquisition module 112 is configured to acquire the zoom parameter of the copied picture.

[0164] In this embodiment, the parameter acquisition module 112 can acquire the focusing parameters according to the selection instruction issued by the user, or can automatical...

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Abstract

The invention discloses a picture focus drawing method and a terminal. The method comprises the steps that for an original picture to be focus-drawn, the original picture is copied to acquire a copy picture; the optical flow graph pixel value of each pixel point on the copy image is calculated according to focus drawing parameters; the pixel value of each pixel point on the copy image is updated to the respective optical flow graph pixel value to acquire an optical flow picture; and finally the acquired optical flow picture is weightedly overlaid with the original picture to acquire a focus drawn synthesis picture, namely a focus drawn picture. According to the picture focus drawing method provided by the invention, focus drawing is carried out on the photographed picture to simulate a focus drawn picture photographed by a zoom lens; the acquisition of the focus drawn picture is not limited to a high-cost professional camera; the cost is reduced; and the user experience satisfaction is enhanced.

Description

technical field [0001] The present invention relates to the technical field of terminals, and more specifically, to a method for processing a picture by zooming in and out and a terminal. Background technique [0002] Traditional pull-focus photography can only be applied to professional cameras through the zoom lens of professional cameras. For example, on a SLR camera, a zoom lens is used, and a small aperture is used for a longer exposure when shooting. During the exposure process, after pressing the shutter, let the camera expose for a second or two, and then carefully turn the zoom ring to achieve zooming. The larger the zooming distance, the more obvious the effect. The resulting photoshoot creates a radiating landscape that is stunning. However, for camera terminals that do not have a zoom lens, such as mobile phones, IPADs, readers, and a series of camera terminals with camera functions, since all of them use fixed-focus lenses, zoomed-in photos cannot be obtained ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50G06T7/269
CPCG06T5/50G06T2207/10004G06T2207/20221
Inventor 孟勇
Owner NUBIA TECHNOLOGY CO LTD