CN103293825B - Multiple exposure method and device - Google Patents

Multiple exposure method and device Download PDF

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CN103293825B
CN103293825B CN201310260826.7A CN201310260826A CN103293825B CN 103293825 B CN103293825 B CN 103293825B CN 201310260826 A CN201310260826 A CN 201310260826A CN 103293825 B CN103293825 B CN 103293825B
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exposure area
exposure
choice box
finding
view
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CN103293825A (en
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魏强
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Nubia Technology Co Ltd
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Shenzhen ZTE Mobile Telecom Co Ltd
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Abstract

The invention discloses a multiple exposure method and device. The multiple exposure method comprises the steps of displaying synthesis effect of an existing picture and a real scene on a view-taking preview interface; selecting an exposure area on the view-taking preview interface; and enabling the existing picture and the real scene in the exposure area to be synthesized into one picture. Accordingly, local multiple exposure is achieved, a free creation mode is provided for users, a multiple exposure creation space is expanded, and user experience is greatly improved.

Description

Multiple exposing method and device
Technical field
The present invention relates to exposure technique field, especially relate to a kind of multiple exposing method and device.
Background technology
Multiple-exposure technology stems from film camera, and it refers to and will repeatedly take and be exposed on same egative film, thereby reaches the overlapping shooting skill of multiple video.Digital camera utilized the convenient characteristic of processing of digital signal afterwards, and original multiple-exposure is inherited and developed.But existing multiple exposing method can only superpose by full figure, and namely the region of each exposure is whole sheet photo, cannot carry out multiple-exposure to part.Thereby seriously limited user, utilize multiple-exposure function to carry out the space of freely creating, cause user to experience not good.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of multiple exposing method and device, is intended to realize local multi exposure, promotes user and experiences.
To achieve these objectives, the present invention proposes a kind of multiple exposing method, comprises step:
In the preview interface of finding a view, show the synthetic effect of existing picture and outdoor scene;
Selected exposure area in the described preview interface of finding a view;
Outdoor scene in described existing picture and exposure area is synthesized in a pictures.
Preferably, the described exposure area of selecting in the preview interface of finding a view comprises:
In the described preview interface of finding a view, show exposure area choice box;
Adjust position and the size of described exposure area choice box, described exposure area choice box limited range is selected exposure area.
Preferably, also comprise when the position of the described exposure area of described adjustment choice box and big or small step:
The quantity of described exposure area choice box is set or/and adjust the shape of described exposure area choice box.
Preferably, described exposure area is at least two, describedly in the preview interface of finding a view, after the step of selected exposure area, also comprises:
Type of exposure and the exposure parameter of exposure area described in each are set.
Preferably, described exposure parameter comprises the pixel ratio of described exposure area.
The present invention proposes a kind of multiple exposing device simultaneously, and comprise display module, choose module and exposure module, wherein:
Display module, for showing the synthetic effect of existing picture and outdoor scene in the preview interface of finding a view;
Choose module, for selected exposure area in the described preview interface of finding a view;
Exposure module, for synthesizing the outdoor scene in described existing picture and exposure area in a pictures.
Preferably, the described module of choosing comprises exposure area choice box and adjustment unit, described display module is also for show described exposure area choice box in the described preview interface of finding a view, and described adjustment unit is for adjusting position and the size of described exposure area choice box.
Preferably, described adjustment unit is also for adjusting the shape of described exposure area choice box.
Preferably, described multiple exposing device also comprises module is set, and it is for arranging the quantity of described exposure area choice box and type of exposure and the exposure parameter of described exposure area.
A kind of multiple exposing method provided by the present invention, by choose the mode of exposure area in the preview interface of finding a view, realized local multi exposure, to user, provide writing means more freely, expand the writing space of multiple-exposure, promoted greatly user's experience.
Accompanying drawing explanation
Fig. 1 is the structural representation of multiple exposing method the first embodiment of the present invention;
Fig. 2 is in the present invention, the find a view existing picture of preview interface demonstration and the synthetic effect schematic diagram of outdoor scene;
Fig. 3 is the structural representation of multiple exposing method the second embodiment of the present invention;
Fig. 4 is the structured flowchart of multiple exposing device one embodiment of the present invention;
Fig. 5 is the structured flowchart of choosing module in Fig. 4.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 2, multiple exposing method the first embodiment of the present invention is proposed, described multiple exposing method comprises the following steps:
Step S101, in the preview interface of finding a view, show the synthetic effect of existing picture and outdoor scene.
Existing picture 10 can be the picture of local storage, can be also just to have taken the formed picture of exposure.In the preview interface of finding a view, show in real time outdoor scene 20 that camera lens is current taken in and the synthetic effect of existing picture 10.As shown in Figure 2, the leopard showing in the preview interface of finding a view is existing picture 10, desert is the outdoor scene 20 that current camera lens is taken in, user can live preview leopard and the design sketch that is synthesized together of desert, by checking preview design sketch, even do not take the domestic consumer of technical ability, also can adjust well the composition of multiple-exposure, thereby shoot perfect multiple-exposure photo.
Step S102, in the preview interface of finding a view selected exposure area.
The present invention can only carry out partial exposure, as shown in Figure 2, first in the preview interface of finding a view, show an exposure area choice box 121, then this exposure area choice box 121 is adjusted to suitable position, can also adjust the size and shape of described exposure area choice box 121, as various geometric configuratioies or animals and plants contour shape etc.Final described exposure area choice box 121 limited ranges are selected exposure area.
Step S103, the outdoor scene in existing picture and exposure area is synthesized in a pictures.
User has determined behind exposure area, presses shooting push button, and multiple exposing device just synthesizes the outdoor scene 20 in described existing picture 10 and exposure area in a pictures, and described synthetic picture is a multiple-exposure photo.As required, can also return to step S101 using described multiple-exposure photo as existing picture, proceed to take exposure.
In conjunction with referring to Fig. 2, Fig. 3, multiple exposing method the second embodiment of the present invention is proposed, described multiple exposing method comprises the following steps:
Step S201, in the preview interface of finding a view, show the synthetic effect of existing picture and outdoor scene.
Step S202, in the preview interface of finding a view selected at least two exposure areas.
The present embodiment provides at least two exposure area choice boxs 121 in the preview interface of finding a view as shown in Figure 2, each exposure area choice box 121 can be adjusted to suitable position, can also adjust the size and shape of each exposure area choice box 121, as various geometric configuratioies or animals and plants contour shape etc.Final each exposure area choice box 121 limited ranges are each selected exposure area.The quantity of exposure area can preset, and also can in shooting process, set at any time or change.For example, for touch screen multiple exposing device, the long touch screen of pressing ejects the option that increases and reduce exposure area choice box 121, also can drag exposure area choice box 121 and be deleted to screen border.
Step S203, the type of exposure that each exposure area is set and exposure parameter.
Can arrange the type of exposure of each exposure area and exposure parameter.For example the pixel ratio of each exposure area can be set, so that picture synthetic after, it is more real or more empty than the image of the image in other exposure areas or existing picture that image in certain exposure area seems, thereby further expanded the writing space of multiple-exposure.Concrete type of exposure and exposure parameter arrange example and are listed below:
Type of exposure 1: simple superposition
Exposure parameter 1: brilliance control
Illustrate: the picture that directly superposes generally can cause overexposure problem, such as the brightness of photo is originally 100, after two stacks, brightness has just become 200, so directly stack can cause picture excessively bright, the exposure parameter 1 has here been set brilliance control, such as parameter is 0.75, before synthetic, have so the operation of 100*0.75, thereby realize the object of controlling last picture brightness.Under half-light, use the method can improve picture brightness.
Type of exposure 2: brightness stack
Exposure parameter 2: luminance threshold
Illustrate: described luminance threshold represents that the brightness of certain pixel on the second pictures surpasses how many times, can cover the pixel of the same position of the first pictures.When this exposure parameter 2 does not arrange, the brightness that represents pixel on the second pictures can be covered while surpassing the brightness of chapter 1.
Type of exposure 3: dark portion stack
Exposure parameter 3: darkness threshold value
Illustrate: contrary with brightness stack, the less pixel of brightness can cover the higher pixel of brightness.
Type of exposure 4: splicing stack
Exposure parameter 4: emergence scope
The degree that when exposure parameter 4 represents to replace, sprout wings in edge is described: in overlap-add region, the second pictures can replace the pixel of the first pictures.
Type of exposure 5: ratio stack
Exposure parameter 5: pixel ratio
Illustrate: reference exposure Class1 " simple superposition ", but what now control is synthetic ratio, the pixel value that for example first pixel value is 100, the second figure is 200, pixel ratio is 0.3, and final result of calculation is 100*0.3+200*(1-0.3)=170.
Step S204, the outdoor scene in existing picture and each exposure area is synthesized in a pictures.
User has determined behind each exposure area, presses shooting push button, and multiple exposing device just synthesizes the outdoor scene 20 in described existing picture 10 and each exposure area in a pictures, and described synthetic picture is a multiple-exposure photo.As required, can also return to step S201 using described multiple-exposure photo as existing picture, proceed to take exposure.
Accordingly, multiple exposing method of the present invention, by choosing the mode of exposure area in the preview interface of finding a view, realized local multi exposure, to user, provide writing means more freely, expanded the writing space of multiple-exposure, promoted greatly user's experience.
In conjunction with referring to Fig. 2, Fig. 4, Fig. 5, multiple exposing device one embodiment of the present invention is proposed, described multiple exposing device 100 can be digital camera, have the intelligent mobile terminal of shoot function etc., comprise display module 110, choose module 120, module 130 and exposure module 140 be set, described in choose module 120 and comprise exposure area choice box 121 and adjustment unit 122.
Display module 110: at multiple-exposure shooting process, show in real time the synthetic effect of existing picture 10 and outdoor scene 20 and show described exposure area choice box 121 in the preview interface of finding a view.Described existing picture 10 can be the picture of multiple exposing device 100 local storages, can be also just to have taken the formed picture of exposure; Current the taken in outdoor scene of camera lens that described outdoor scene 20 is multiple exposing device.As shown in Figure 2, the leopard showing in the preview interface of finding a view is existing picture 10, desert is the outdoor scene 20 that current camera lens is taken in, user can live preview leopard and the design sketch that is synthesized together of desert, by checking preview design sketch, even do not take the domestic consumer of technical ability, also can adjust well the composition of multiple-exposure, thereby shoot perfect multiple-exposure photo.
Choose module 120: for selected exposure area in the preview interface of finding a view.When being shown in as shown in Figure 2, exposure area choice box 121 finds a view after preview interface, adjustment unit 122 is for adjusting to suitable position by exposure area choice box 121, and the size and shape of adjusting exposure area choice box 121, as be adjusted to various geometric configuratioies or animals and plants contour shape etc.For example, multiple exposing device 100 is intelligent touch-screen mobile phone, user can adjust its position by dragging whole exposure area choice box 121, frame by stretching exposure area choice box 121 is adjusted its size, final described exposure area choice box 121 limited ranges are selected exposure area, described exposure area choice box 121 can be two or more, thereby forms accordingly two or more exposure areas.
Module 130 is set: for the quantity of exposure area choice box and the type of exposure of exposure area and exposure parameter are set, when exposure area is when more than two, can to each exposure area, arrange respectively.For example the pixel ratio of each exposure area can be set so that picture synthetic after, it is more real or more empty than the image of the image in other exposure areas or existing picture that the image in certain exposure area seems.The quantity that module 130 can pre-set exposure area choice box 121 is set, also can in shooting process, sets at any time or change.For example, for touch screen multiple exposing device, the long touch screen of pressing ejects the option that increases and reduce exposure area choice box 121, also can drag exposure area choice box 121 and be deleted to screen border.
Exposure module 140: for pressing user after the shooting push button of multiple exposing device 100, outdoor scene 20 in described existing picture 10 and exposure area is synthesized in a pictures, when exposure area is at least two, the outdoor scene 20 being about in existing picture 10 and each exposure area is synthesized in a pictures, and described synthetic picture is a multiple-exposure photo.As required, can also, using described multiple-exposure photo as existing picture, proceed to take exposure.
Accordingly, multiple exposing device 100 of the present invention, by choosing the mode of module 120 selected exposure area in the preview interface of finding a view, realized local multi exposure, to user, provide writing means more freely, expanded the writing space of multiple-exposure, promoted greatly user's experience.
Should be understood that; these are only the preferred embodiments of the present invention; can not therefore limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (12)

1. a multiple exposing method, is characterized in that, comprises step:
In the preview interface of finding a view, show the synthetic effect of existing picture and outdoor scene;
Selected exposure area in the described preview interface of finding a view;
Outdoor scene in described existing picture and exposure area is synthesized in a pictures.
2. multiple exposing method according to claim 1, is characterized in that, the described exposure area of selecting in the preview interface of finding a view comprises:
In the described preview interface of finding a view, show exposure area choice box;
Adjust position and the size of described exposure area choice box, described exposure area choice box limited range is described selected exposure area.
3. multiple exposing method according to claim 2, is characterized in that, described when in the preview interface of finding a view, selected exposure area comprises the position and big or small step of adjusting described exposure area choice box, also comprises:
The quantity of described exposure area choice box is set or/and adjust the shape of described exposure area choice box.
4. according to the multiple exposing method described in claim 1-3 any one, it is characterized in that, described exposure area is at least two, describedly in the preview interface of finding a view, after the step of selected exposure area, also comprises:
Type of exposure and the exposure parameter of described exposure area are set.
5. multiple exposing method according to claim 4, is characterized in that, described exposure parameter comprises the pixel ratio of described exposure area.
6. multiple exposing method according to claim 4, is characterized in that, described exposure parameter comprises the brilliance control of described exposure area, luminance threshold, darkness threshold value, or emergence scope.
7. a multiple exposing device, is characterized in that, comprise display module, choose module and exposure module, wherein:
Display module, for showing the synthetic effect of existing picture and outdoor scene in the preview interface of finding a view;
Choose module, for selected exposure area in the described preview interface of finding a view;
Exposure module, for synthesizing the outdoor scene in described existing picture and exposure area in a pictures.
8. multiple exposing device according to claim 7, it is characterized in that, the described module of choosing comprises exposure area choice box and adjustment unit, described display module is also for show described exposure area choice box in the described preview interface of finding a view, and described adjustment unit is for adjusting position and the size of described exposure area choice box.
9. multiple exposing device according to claim 8, is characterized in that, described adjustment unit is also for adjusting the shape of described exposure area choice box.
10. multiple exposing device according to claim 8 or claim 9, is characterized in that, described multiple exposing device also comprises module is set, and it is for arranging the quantity of described exposure area choice box and type of exposure and the exposure parameter of described exposure area.
11. multiple exposing devices according to claim 10, is characterized in that, described exposure parameter comprises the pixel ratio of described exposure area.
12. multiple exposing devices according to claim 10, is characterized in that, described exposure parameter comprises the brilliance control of described exposure area, luminance threshold, darkness threshold value, or emergence scope.
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RU2748303C1 (en) * 2018-03-26 2021-05-21 Хуавэй Текнолоджиз Ко., Лтд. Intelligent assistant control method and terminal device

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