CN105611146A - Imaging method based on double cameras and apparatus thereof - Google Patents
Imaging method based on double cameras and apparatus thereof Download PDFInfo
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- CN105611146A CN105611146A CN201510642606.XA CN201510642606A CN105611146A CN 105611146 A CN105611146 A CN 105611146A CN 201510642606 A CN201510642606 A CN 201510642606A CN 105611146 A CN105611146 A CN 105611146A
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Abstract
The invention provides an imaging method based on double cameras and an imaging apparatus based on the double cameras. The imaging method based on the double cameras comprises the following steps of when a shooting function is started, determining whether a relative position relation of a main camera and an auxiliary camera of a terminal and a relative position relation of a first shooting main body and a second shooting main body are the same, and acquiring a first determination result; according to the first determination result and a preset shooting mode, acquiring a first preview image and a second preview image including the first shooting main body and the second shooting main body through the main camera and the auxiliary camera respectively; and according to a preset synthetic algorithm, synthesizing the first preview image and the second preview image into a target shooting image. Through the technical scheme of the invention, a problem that the shooting main body is dark or a background is overexposed because the double cameras are used to shoot an image with a highlight scene can be effectively solved so that imaging quality of the shot image is increased and a user experience is improved.
Description
Technical field
The present invention relates to terminal technology field, in particular to a kind of imaging based on dual cameraMethod and a kind of imaging device based on dual camera.
Background technology
At present, terminal (such as mobile phone) one of must band product as what go out, application more and more widelyIn life. And the camera function of terminal is one of function the most often using, especially ought see beautyLandscape time, simultaneously user requires also more and more higher to the image quality of taking pictures. But when occurring skyWhen scene together with building of empty, white clouds, due to the not anti-overexposure composition algorithm of terminal, finally takePhoto otherwise there is sky overexposure, or occur building landscape excessively dark, this has greatly affected userUltimate attainment experience.
Existingly there is too defect based on the taking pictures in scheme of dual camera, such as: if take picturesThe main body of picture be sky, building landscape will be partially dark; If the main body of the picture of taking pictures is buildingLandscape, sky can overexposure. In a word, the existing scheme of taking pictures based on dual camera cannot meet classLike to the coexist quality requirement of taking pictures of a scene of sky white clouds and building landscape.
Although by engineer's debugging optimization, most of scene can meet user's demand,Be hardware based restriction,, hold very much with the taking pictures of highlighted scene (such as, sky) for someBe prone to background overexposure, or the partially dark situation of the shooting body.
Therefore, how to solve when by dual camera when taking with the image of highlighted scene,The problem of the partially dark or background overexposure of the shooting body being prone to, thus the one-tenth picture element of photographic images improvedAmount, the ultimate attainment experience that promotes user becomes technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention, just based on above-mentioned technical problem, has proposed a kind of new technical scheme, can be effectiveGround solve when by dual camera when taking with the image of highlighted scene, the shooting being prone toThe problem of the partially dark or background overexposure of main body, thus the image quality of photographic images improved, promote user's bodyTest.
In view of this, a first aspect of the present invention, has proposed a kind of imaging side based on dual cameraMethod, comprising: in the time that shoot function is unlocked, judge the main camera of terminal and the phase of auxiliary cameraWhether identical with the relative position relation of the first the shooting body and the second the shooting body to position relationship, obtainGet the first judged result; Pass through respectively described master according to described the first judged result and default style of shootingCamera and described auxiliary camera obtain and all comprise described the first the shooting body and described the second shooting masterThe first preview image of body and the second preview image; According to default composition algorithm by described the first preview graphPicture and described the second preview image synthesize target photographic images.
In this technical scheme, in the time taking pictures, by judging main camera and the auxiliary camera of terminalRelative position relation (such as, relative position relations such as upper and lower, left and right, diagonal) and first countTake the photograph the whether phase of relative position relation of main body (as sky) and the second the shooting body (as ground scenery)With, for example, when the main camera of terminal and auxiliary camera are during in upper and lower relative position, firstWhether the shooting body and the second the shooting body be also in upper and lower relative position, to obtain the first judgement knotReally, and obtain the first preview image and the second preview image in conjunction with default style of shooting, wherein, firstPreview image and the second preview image all include the first the shooting body and the second the shooting body, and firstThe lightness of the shooting body and the second the shooting body differs greatly, finally according to default composition algorithm byOne preview image and the second preview image synthesize target photographic images, so, have effectively avoided existingHaving in technology directly when taking with highlighted scene, there is a part of the shooting body in photographic imagesOverexposure, or the partially dark situation of a part of the shooting body, improved the one-tenth picture element of photographic imagesAmount, thus user's experience promoted.
In technique scheme, preferably, according to described the first judged result and described default shootingMode is obtained described the first preview image and institute by described main camera and described auxiliary camera respectivelyThe step of stating the second preview image specifically comprises: in described the first judged result while being identical, according to connecingFirst move of receiving by described the first preview image and described the second preview image from described secondThe shooting body moves to described the first the shooting body, and takes instruction according to receive first and obtain bagContaining described first preview image of described the first the shooting body and described the second the shooting body, pass through simultaneouslyDescribed auxiliary camera is taken instruction according to described first and is obtained described the second preview image; DescribedWhen one judged result is contrary, according to the first move receiving by described the first preview image andDescribed the second preview image moves to described the second the shooting body from described the first the shooting body, and according toWhat receive second takes instruction and obtains and comprise described the first the shooting body and described the second the shooting bodyDescribed the first preview image, takes instruction by described auxiliary camera according to described second simultaneously and obtainsDescribed the second preview image.
In this technical scheme, in the first judged result while being identical, i.e. the main camera of terminal and auxiliaryHelp the relative position relation of camera and the relative position relation of the first the shooting body and the second the shooting bodyWhen identical, such as, main camera and first is taken body portion not with respect to auxiliary camera and second countTake the photograph main body in the time of top position, in the time obtaining the first preview image and the second preview image, according toBy moving from the second the shooting body to the first the shooting body and moving to main camera and auxiliary cameraWhile all including the first the shooting body and the second the shooting body, take, can be according to user to going outNow the satisfaction of the brightness of the image in camera is obtained preview image, with by main camera andAuxiliary camera gets respectively the first preview image and the second preview graph that image quality is relatively highPicture, otherwise,, move from the direction contrary with above-mentioned movement while being contrary in the first judged result,Move and carry out follow-up preview image obtaining step from the first the shooting body to the second the shooting body,So, can further improve the image quality of photographic images, improve user simultaneously and experience.
In above-mentioned arbitrary technical scheme, preferably, described according to default composition algorithm by described firstPreview image and described the second preview image synthesize target photographic images and specifically comprise: according to default suitableOrder obtain successively described the first preview image and described the second preview image the first corresponding pixel andThe brightness value of the second pixel; Whether the brightness value that judges described the first pixel is less than default brightnessValue, obtains the second judged result; Determine whether according to described the first picture according to described the second judged resultThe current pixel point of target photographic images described in the attribute value generation of vegetarian refreshments, with successively according to described currentPixel synthesizes described target photographic images.
In this technical scheme, getting after the first preview image and the second preview image, by complying withInferior the first pixel that obtains the first preview image and the second preview image corresponding with the first pixel andThe brightness value of the second pixel, and judge whether the brightness value of the first pixel is less than default brightness value(such as, the maximum brightness value 255 of pixel), determine the first preview image according to judged resultThe first pixel exposure rate whether moderate, with the further attribute value generation order according to the first pixelThe current pixel point of mark photographic images, to guarantee the image quality of target photographic images.
In above-mentioned arbitrary technical scheme, preferably, described according to described the second judged result determine beNo according to the current pixel point of target photographic images described in the attribute value generation of described the first pixel, withSpecifically comprise according to the synthetic described target photographic images of described current pixel point successively: sentence when described secondDisconnected result when being, according to target photographic images described in the attribute value generation of described the first pixel oughtPreceding pixel point; When described the second judged result is while being no, judge that the brightness value of described the second pixel isNoly be less than described default brightness value; And be less than described pre-at the brightness value of judging described the second pixelIf when brightness value, current according to target photographic images described in the attribute value generation of described the second pixelPixel, otherwise, according to working as of target photographic images described in the attribute value generation of described the first pixelPreceding pixel point.
In this technical scheme, when judge the first preview image the first pixel be less than default brightnessWhen value, according to the current pixel point of the attribute value generation target photographic images of the first pixel, and when sentencingBeing more than or equal to while presetting brightness value of the first pixel of fixed the first preview image, judge the second previewWhether the brightness value of the second pixel of image is less than this default brightness value, if be judged to be, according toThe current pixel point of the attribute value generation target photographic images of the second pixel, otherwise, preferably according toThe current pixel point of the attribute value generation target photographic images of the first pixel, so, by by firstPreview image and the second preview image synthesize and are less than in advance according to brightness value according to default composition algorithmIf the current pixel point of the attribute value generation target photographic images of the pixel of brightness value, can be effectivelySolve when by dual camera when taking with the image of highlighted scene, the shooting master who is prone toThe problem of the partially dark or background overexposure of body, thus the image quality of photographic images improved, promote user's bodyTest.
In above-mentioned arbitrary technical scheme, preferably, described the first pixel and described the second pixelProperty value comprise: the brightness value of pixel and the rgb value of pixel; Described the first the shooting bodyThe lightness of environment of living in is greater than the lightness of described the second the shooting body environment of living in.
In this technical scheme, the property value of the first pixel and the second pixel includes but not limited to:The brightness value of pixel and the RGB of pixel (RGBColorModel, primaries model, oneKind of color standard, by the variation of red (R), green (G), blue (B) three Color Channels withAnd their stacks each other obtain color miscellaneous) value, wherein, brightness value and pixelThe color that the rgb value of point is photographic images and the inscape of brightness, at least by the first pixelThe brightness value of point or the second pixel and rgb value generate the current pixel point of target photographic images, canGetting all suitable target photographic images of color and brightness, effectively promote photographic imagesImage quality.
In addition, the lightness of the first the shooting body (such as, sky white clouds) environment of living in is greater than secondThe lightness of the shooting body (such as, ground scenery) environment of living in, in the time taking pictures, due toThe residing environment of the first the shooting body is compared with bright and cause the first the shooting body overexposure, and second countTake the photograph the residing environment of main body compared with secretly causing the second the shooting body excessively dark, so, can be by taking thisThe technical scheme of invention avoids above-mentioned situation to occur, and improves the imaging weight of photographic images, thereby carriesRising user experiences.
A second aspect of the present invention, has proposed a kind of imaging device based on dual camera, comprising: sentenceDisconnected module, in the time that shoot function is unlocked, judges the main camera of terminal and auxiliary cameraWhether relative position relation is identical with the relative position relation of the first the shooting body and the second the shooting body,Obtain the first judged result; Control module, for according to described the first judged result and default shooting sideFormula is obtained and is all comprised described the first the shooting body by described main camera and described auxiliary camera respectivelyThe first preview image and the second preview image with described the second the shooting body; Processing module, for pressingAccording to default composition algorithm, described the first preview image and described the second preview image are synthesized to target shootingImage.
In this technical scheme, in the time taking pictures, by judging main camera and the auxiliary camera of terminalRelative position relation (such as, relative position relations such as upper and lower, left and right, diagonal) and first countTake the photograph the whether phase of relative position relation of main body (as sky) and the second the shooting body (as ground scenery)With, for example, when the main camera of terminal and auxiliary camera are during in upper and lower relative position, firstWhether the shooting body and the second the shooting body be also in upper and lower relative position, to obtain the first judgement knotReally, and obtain the first preview image and the second preview image in conjunction with default style of shooting, wherein, firstPreview image and the second preview image all include the first the shooting body and the second the shooting body, and firstThe lightness of the shooting body and the second the shooting body differs greatly, finally according to default composition algorithm byOne preview image and the second preview image synthesize target photographic images, so, have effectively avoided existingHaving in technology directly when taking with highlighted scene, there is a part of the shooting body in photographic imagesOverexposure, or the partially dark situation of a part of the shooting body, improved the one-tenth picture element of photographic imagesAmount, thus user's experience promoted.
In technique scheme, preferably, described control module specifically for: sentence described firstWhen disconnected result is identical, according to the first move receiving by described the first preview image and described inThe second preview image moves to described the first the shooting body from described the second the shooting body, and controls basisWhat receive first takes instruction and obtains and comprise described the first the shooting body and described the second the shooting bodyDescribed the first preview image, takes instruction by described auxiliary camera according to described first simultaneously and obtainsDescribed the second preview image; , move according to receive second while being contrary in described the first judged resultMoving instruction by described the first preview image and described the second preview image from described the first the shooting body to instituteState the second the shooting body and move, and control and take instruction according to receive second and obtain and comprise described theDescribed first preview image of one the shooting body and described the second the shooting body, simultaneously by described auxiliaryCamera is taken instruction according to described second and is obtained described the second preview image.
In this technical scheme, in the first judged result while being identical, i.e. the main camera of terminal and auxiliaryHelp the relative position relation of camera and the relative position relation of the first the shooting body and the second the shooting bodyWhen identical, such as, main camera and first is taken body portion not with respect to auxiliary camera and second countTake the photograph main body in the time of top position, in the time obtaining the first preview image and the second preview image, according toBy moving from the second the shooting body to the first the shooting body and moving to main camera and auxiliary cameraWhile all including the first the shooting body and the second the shooting body, take, can be according to user to going outNow the satisfaction of the brightness of the image in camera is obtained preview image, with by main camera andAuxiliary camera gets respectively the first preview image and the second preview graph that image quality is relatively highPicture, otherwise,, move from the direction contrary with above-mentioned movement while being contrary in the first judged result,Move and carry out follow-up preview image obtaining step from the first the shooting body to the second the shooting body,So, can further improve the image quality of photographic images, improve user simultaneously and experience.
In above-mentioned arbitrary technical scheme, preferably, described processing module specifically comprises: obtain submodulePiece, for obtaining successively described the first preview image and described the second preview image according to preset orderThe first corresponding pixel and the brightness value of the second pixel; Judge submodule, for judging describedWhether the brightness value of one pixel is less than default brightness value, obtains the second judged result; Determine submodulePiece, raw for determining whether according to described the second judged result according to the property value of described the first pixelBecome the current pixel point of described target photographic images, described in synthesizing according to described current pixel point successivelyTarget photographic images.
In this technical scheme, getting after the first preview image and the second preview image, by complying withInferior the first pixel that obtains the first preview image and the second preview image corresponding with the first pixel andThe brightness value of the second pixel, and judge whether the brightness value of the first pixel is less than default brightness value(such as, the maximum brightness value 255 of pixel), determine the first preview image according to judged resultThe first pixel exposure rate whether moderate, with the further attribute value generation order according to the first pixelThe current pixel point of mark photographic images, to guarantee the image quality of target photographic images.
In above-mentioned arbitrary technical scheme, preferably, described definite submodule specifically for: when describedThe second judged result when being, is taken figure according to target described in the attribute value generation of described the first pixelThe current pixel point of picture; And described judge submodule also for: when described the second judged result is noTime, judge whether the brightness value of described the second pixel is less than described default brightness value; And described trueStator modules specifically also for: judging that the brightness value of described the second pixel is less than described default brightnessWhen value, according to the current pixel of target photographic images described in the attribute value generation of described the second pixelPoint, otherwise, according to the current picture of target photographic images described in the attribute value generation of described the first pixelVegetarian refreshments.
In this technical scheme, when judge the first preview image the first pixel be less than default brightnessWhen value, according to the current pixel point of the attribute value generation target photographic images of the first pixel, and when sentencingBeing more than or equal to while presetting brightness value of the first pixel of fixed the first preview image, judge the second previewWhether the brightness value of the second pixel of image is less than this default brightness value, if be judged to be, according toThe current pixel point of the attribute value generation target photographic images of the second pixel, otherwise, preferably according toThe current pixel point of the attribute value generation target photographic images of the first pixel, so, by by firstPreview image and the second preview image synthesize and are less than in advance according to brightness value according to default composition algorithmIf the current pixel point of the attribute value generation target photographic images of the pixel of brightness value, can be effectivelySolve when by dual camera when taking with the image of highlighted scene, the shooting master who is prone toThe problem of the partially dark or background overexposure of body, thus the image quality of photographic images improved, promote user's bodyTest.
In above-mentioned arbitrary technical scheme, preferably, described the first pixel and described the second pixelProperty value comprise: the brightness value of pixel and the rgb value of pixel; Described the first the shooting bodyThe lightness of environment of living in is greater than the lightness of described the second the shooting body environment of living in.
In this technical scheme, the property value of the first pixel and the second pixel includes but not limited to:The brightness value of pixel and the RGB of pixel (RGBColorModel, primaries model, oneKind of color standard, by the variation of red (R), green (G), blue (B) three Color Channels withAnd their stacks each other obtain color miscellaneous) value, wherein, brightness value and pixelThe color that the rgb value of point is photographic images and the inscape of brightness, at least by the first pixelThe brightness value of point or the second pixel and rgb value generate the current pixel point of target photographic images, canGetting all suitable target photographic images of color and brightness, effectively promote photographic imagesImage quality.
In addition, the lightness of the first the shooting body (such as, sky white clouds) environment of living in is greater than secondThe lightness of the shooting body (such as, ground scenery) environment of living in, in the time taking pictures, due toThe residing environment of the first the shooting body is compared with bright and cause the first the shooting body overexposure, and second countTake the photograph the residing environment of main body compared with secretly causing the second the shooting body excessively dark, so, can be by taking thisThe technical scheme of invention avoids above-mentioned situation to occur, and improves the imaging weight of photographic images, thereby carriesRising user experiences.
According to a third aspect of the invention we, also propose a kind of terminal, having comprised: as technique schemeThe imaging device based on dual camera described in middle any one, therefore, this terminal has and above-mentioned technologyThe identical technique effect of the imaging device based on dual camera in scheme described in any one, at this no longerRepeat.
By above technical scheme, can effectively solve when by dual camera to highlighted sceneImage while taking, the problem of the partially dark or background overexposure of the shooting body being prone to, thus improveThe image quality of photographic images, promotes user and experiences.
Brief description of the drawings
Fig. 1 shows the stream of the formation method based on dual camera according to an embodiment of the inventionJourney schematic diagram;
Fig. 2 shows the frame of the imaging device based on dual camera according to an embodiment of the inventionFigure;
Fig. 3 shows the block diagram of terminal according to an embodiment of the invention;
Fig. 4 shows the formation method based on dual camera according to another embodiment of the inventionSchematic flow sheet;
Fig. 5 shows the stream of the method for synthetic target photographic images according to an embodiment of the inventionJourney schematic diagram.
Detailed description of the invention
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attachedFigure and detailed description of the invention are further described in detail the present invention. It should be noted that, notIn the situation of conflict, the feature in the application's embodiment and embodiment can combine mutually.
Set forth in the following description a lot of details so that fully understand the present invention, still,The present invention can also adopt other to be different from other modes described here and implement, therefore, and the present inventionProtection domain be not subject to the restriction of following public specific embodiment.
Fig. 1 shows the stream of the formation method based on dual camera according to an embodiment of the inventionJourney schematic diagram.
As shown in Figure 1, the formation method based on dual camera according to an embodiment of the invention,Comprise: step 102, in the time that shoot function is unlocked, judges main camera and the auxiliary shooting of terminalWhether phase of the relative position relation of relative position relation and the first the shooting body and second the shooting body of headWith, obtain the first judged result; Step 104, according to described the first judged result and default shooting sideFormula is obtained and is all comprised described the first the shooting body by described main camera and described auxiliary camera respectivelyThe first preview image and the second preview image with described the second the shooting body; Step 106, according in advanceIf described the first preview image and described the second preview image are synthesized target shooting figure by composition algorithmPicture.
In this technical scheme, in the time taking pictures, by judging main camera and the auxiliary camera of terminalRelative position relation (such as, relative position relations such as upper and lower, left and right, diagonal) and first countTake the photograph the whether phase of relative position relation of main body (as sky) and the second the shooting body (as ground scenery)With, for example, when the main camera of terminal and auxiliary camera are during in upper and lower relative position, firstWhether the shooting body and the second the shooting body be also in upper and lower relative position, to obtain the first judgement knotReally, and obtain the first preview image and the second preview image in conjunction with default style of shooting, wherein, firstPreview image and the second preview image all include the first the shooting body and the second the shooting body, and firstThe lightness of the shooting body and the second the shooting body differs greatly, finally according to default composition algorithm byOne preview image and the second preview image synthesize target photographic images, so, have effectively avoided existingHaving in technology directly when taking with highlighted scene, there is a part of the shooting body in photographic imagesOverexposure, or the partially dark situation of a part of the shooting body, improved the one-tenth picture element of photographic imagesAmount, thus user's experience promoted.
In technique scheme, preferably, described step 104 specifically comprises: sentence described firstWhen disconnected result is identical, according to the first move receiving by described the first preview image and described inThe second preview image moves to described the first the shooting body from described the second the shooting body, and according to receptionTo first take instruction obtain comprise described the first the shooting body and described the second the shooting body described inThe first preview image, described in obtaining according to described the first shooting instruction by described auxiliary camera simultaneouslyThe second preview image; While being contrary, move finger according to receive first in described the first judged resultOrder by described the first preview image and described the second preview image from described the first the shooting body to described theTwo the shooting bodies move, and obtain and comprise described the first shooting master according to the second shooting instruction receivingDescribed first preview image of body and described the second the shooting body, simultaneously by described auxiliary camera rootTake instruction according to described second and obtain described the second preview image.
In this technical scheme, in the first judged result while being identical, i.e. the main camera of terminal and auxiliaryHelp the relative position relation of camera and the relative position relation of the first the shooting body and the second the shooting bodyWhen identical, such as, main camera and first is taken body portion not with respect to auxiliary camera and second countTake the photograph main body in the time of top position, in the time obtaining the first preview image and the second preview image, according toBy moving from the second the shooting body to the first the shooting body and moving to main camera and auxiliary cameraWhile all including the first the shooting body and the second the shooting body, take, can be according to user to going outNow the satisfaction of the brightness of the image in camera is obtained preview image, with by main camera andAuxiliary camera gets respectively the first preview image and the second preview graph that image quality is relatively highPicture, otherwise,, move from the direction contrary with above-mentioned movement while being contrary in the first judged result,Move and carry out follow-up preview image obtaining step from the first the shooting body to the second the shooting body,So, can further improve the image quality of photographic images, improve user simultaneously and experience.
In above-mentioned arbitrary technical scheme, preferably, described step 106 specifically comprises: according to defaultOrder is obtained the first corresponding pixel of described the first preview image and described the second preview image successivelyBrightness value with the second pixel; Whether the brightness value that judges described the first pixel is less than default brightnessValue, obtains the second judged result; Determine whether according to described the first picture according to described the second judged resultThe current pixel point of target photographic images described in the attribute value generation of vegetarian refreshments, with successively according to described currentPixel synthesizes described target photographic images.
In this technical scheme, getting after the first preview image and the second preview image, by complying withInferior the first pixel that obtains the first preview image and the second preview image corresponding with the first pixel andThe brightness value of the second pixel, and judge whether the brightness value of the first pixel is less than default brightness value(such as, the maximum brightness value 255 of pixel), determine the first preview image according to judged resultThe first pixel exposure rate whether moderate, with the further attribute value generation order according to the first pixelThe current pixel point of mark photographic images, to guarantee the image quality of target photographic images.
In above-mentioned arbitrary technical scheme, preferably, described according to described the second judged result determine beNo according to the current pixel point of target photographic images described in the attribute value generation of described the first pixel, withSpecifically comprise according to the synthetic described target photographic images of described current pixel point successively: sentence when described secondDisconnected result when being, according to target photographic images described in the attribute value generation of described the first pixel oughtPreceding pixel point; When described the second judged result is while being no, judge that the brightness value of described the second pixel isNoly be less than described default brightness value; And be less than described pre-at the brightness value of judging described the second pixelIf when brightness value, current according to target photographic images described in the attribute value generation of described the second pixelPixel, otherwise, according to working as of target photographic images described in the attribute value generation of described the first pixelPreceding pixel point.
In this technical scheme, when judge the first preview image the first pixel be less than default brightnessWhen value, according to the current pixel point of the attribute value generation target photographic images of the first pixel, and when sentencingBeing more than or equal to while presetting brightness value of the first pixel of fixed the first preview image, judge the second previewWhether the brightness value of the second pixel of image is less than this default brightness value, if be judged to be, according toThe current pixel point of the attribute value generation target photographic images of the second pixel, otherwise, preferably according toThe current pixel point of the attribute value generation target photographic images of the first pixel, so, by by firstPreview image and the second preview image synthesize and are less than in advance according to brightness value according to default composition algorithmIf the current pixel point of the attribute value generation target photographic images of the pixel of brightness value, can be effectivelySolve when by dual camera when taking with the image of highlighted scene, the shooting master who is prone toThe problem of the partially dark or background overexposure of body, thus the image quality of photographic images improved, promote user's bodyTest.
In above-mentioned arbitrary technical scheme, preferably, described the first pixel and described the second pixelProperty value comprise: the brightness value of pixel and the rgb value of pixel; Described the first the shooting bodyThe lightness of environment of living in is greater than the lightness of described the second the shooting body environment of living in.
In this technical scheme, the property value of the first pixel and the second pixel includes but not limited to:The brightness value of pixel and the RGB of pixel (RGBColorModel, primaries model, oneKind of color standard, by the variation of red (R), green (G), blue (B) three Color Channels withAnd their stacks each other obtain color miscellaneous) value, wherein, brightness value and pixelThe color that the rgb value of point is photographic images and the inscape of brightness, at least by the first pixelThe brightness value of point or the second pixel and rgb value generate the current pixel point of target photographic images, canGetting all suitable target photographic images of color and brightness, effectively promote photographic imagesImage quality.
In addition, the lightness of the first the shooting body (such as, sky white clouds) environment of living in is greater than secondThe lightness of the shooting body (such as, ground scenery) environment of living in, in the time taking pictures, due toThe residing environment of the first the shooting body is compared with bright and cause the first the shooting body overexposure, and second countTake the photograph the residing environment of main body compared with secretly causing the second the shooting body excessively dark, so, can be by taking thisThe technical scheme of invention avoids above-mentioned situation to occur, and improves the imaging weight of photographic images, thereby carriesRising user experiences.
Fig. 2 shows the frame of the imaging device based on dual camera according to an embodiment of the inventionFigure.
As shown in Figure 2, the imaging device based on dual camera according to an embodiment of the invention200, comprising: judge module 202, control module 204 and processing module 206.
Wherein, judge module 202, in the time that shoot function is unlocked, judges the main shooting of terminalHead and the relative position relation of auxiliary camera and the phase contraposition of the first the shooting body and the second the shooting bodyWhether the relation of putting is identical, obtains the first judged result; Control module 204, for according to described firstJudged result and default style of shooting are obtained all by described main camera and described auxiliary camera respectivelyThe first preview image that comprises described the first the shooting body and described the second the shooting body and the second preview graphPicture; Processing module 206, for according to default composition algorithm by described the first preview image and describedTwo preview images synthesize target photographic images.
In this technical scheme, in the time taking pictures, by judging main camera and the auxiliary camera of terminalRelative position relation (such as, relative position relations such as upper and lower, left and right, diagonal) and first countTake the photograph the whether phase of relative position relation of main body (as sky) and the second the shooting body (as ground scenery)With, for example, when the main camera of terminal and auxiliary camera are during in upper and lower relative position, firstWhether the shooting body and the second the shooting body be also in upper and lower relative position, to obtain the first judgement knotReally, and obtain the first preview image and the second preview image in conjunction with default style of shooting, wherein, firstPreview image and the second preview image all include the first the shooting body and the second the shooting body, and firstThe lightness of the shooting body and the second the shooting body differs greatly, finally according to default composition algorithm byOne preview image and the second preview image synthesize target photographic images, so, have effectively avoided existingHaving in technology directly when taking with highlighted scene, there is a part of the shooting body in photographic imagesOverexposure, or the partially dark situation of a part of the shooting body, improved the one-tenth picture element of photographic imagesAmount, thus user's experience promoted.
In technique scheme, preferably, described control module 204 specifically for: describedWhen one judged result is identical, according to the first move receiving by described the first preview image andDescribed the second preview image moves to described the first the shooting body from described the second the shooting body, and controlsObtain and comprise described the first the shooting body and described the second shooting master according to the first shooting instruction receivingDescribed first preview image of body is taken instruction by described auxiliary camera according to described first simultaneouslyObtain described the second preview image; In described the first judged result while being contrary, according to receiveTwo moves by described the first preview image and described the second preview image from described the first the shooting bodyMove to described the second the shooting body, and control according to the second shooting instruction receiving and obtain and comprise instituteState described first preview image of the first the shooting body and described the second the shooting body, described in passing through simultaneouslyAuxiliary camera is taken instruction according to described second and is obtained described the second preview image.
In this technical scheme, in the first judged result while being identical, i.e. the main camera of terminal and auxiliaryHelp the relative position relation of camera and the relative position relation of the first the shooting body and the second the shooting bodyWhen identical, such as, main camera and first is taken body portion not with respect to auxiliary camera and second countTake the photograph main body in the time of top position, in the time obtaining the first preview image and the second preview image, according toBy moving from the second the shooting body to the first the shooting body and moving to main camera and auxiliary cameraWhile all including the first the shooting body and the second the shooting body, take, can be according to user to going outNow the satisfaction of the brightness of the image in camera is obtained preview image, with by main camera andAuxiliary camera gets respectively the first preview image and the second preview graph that image quality is relatively highPicture, otherwise,, move from the direction contrary with above-mentioned movement while being contrary in the first judged result,Move and carry out follow-up preview image obtaining step from the first the shooting body to the second the shooting body,So, can further improve the image quality of photographic images, improve user simultaneously and experience.
In above-mentioned arbitrary technical scheme, preferably, described processing module 206 specifically comprises: obtainSubmodule 2062, judge submodule 2064 and definite submodule 2066.
Wherein, obtain submodule 2062, for obtain successively described the first preview according to preset orderThe first corresponding pixel of image and described the second preview image and the brightness value of the second pixel; SentenceWhether disconnected submodule 2064, be less than default brightness for the brightness value that judges described the first pixelValue, obtains the second judged result; Determine submodule 2066, for according to described the second judged resultDetermine whether according to the current pixel of target photographic images described in the attribute value generation of described the first pixelPoint, to synthesize described target photographic images according to described current pixel point successively.
In this technical scheme, getting after the first preview image and the second preview image, by complying withInferior the first pixel that obtains the first preview image and the second preview image corresponding with the first pixel andThe brightness value of the second pixel, and judge whether the brightness value of the first pixel is less than default brightness value(such as, the maximum brightness value 255 of pixel), determine the first preview image according to judged resultThe first pixel exposure rate whether moderate, with the further attribute value generation order according to the first pixelThe current pixel point of mark photographic images, to guarantee the image quality of target photographic images.
In above-mentioned arbitrary technical scheme, preferably, described definite submodule 2066 specifically for:When described the second judged result is when being, according to target described in the attribute value generation of described the first pixelThe current pixel point of photographic images; And described judgement submodule 2064 also for: when described secondWhen judged result is no, judge whether the brightness value of described the second pixel is less than described default brightnessValue; And described definite submodule 2066 specifically also for: judging described the second pixel brightWhen degree value is less than described default brightness value, according to target described in the attribute value generation of described the second pixelThe current pixel point of photographic images, otherwise, according to order described in the attribute value generation of described the first pixelThe current pixel point of mark photographic images.
In this technical scheme, when judge the first preview image the first pixel be less than default brightnessWhen value, according to the current pixel point of the attribute value generation target photographic images of the first pixel, and when sentencingBeing more than or equal to while presetting brightness value of the first pixel of fixed the first preview image, judge the second previewWhether the brightness value of the second pixel of image is less than this default brightness value, if be judged to be, according toThe current pixel point of the attribute value generation target photographic images of the second pixel, otherwise, preferably according toThe current pixel point of the attribute value generation target photographic images of the first pixel, so, by by firstPreview image and the second preview image synthesize and are less than in advance according to brightness value according to default composition algorithmIf the current pixel point of the attribute value generation target photographic images of the pixel of brightness value, can be effectivelySolve when by dual camera when taking with the image of highlighted scene, the shooting master who is prone toThe problem of the partially dark or background overexposure of body, thus the image quality of photographic images improved, promote user's bodyTest.
In above-mentioned arbitrary technical scheme, preferably, described the first pixel and described the second pixelProperty value comprise: the brightness value of pixel and the rgb value of pixel; Described the first the shooting bodyThe lightness of environment of living in is greater than the lightness of described the second the shooting body environment of living in.
In this technical scheme, the property value of the first pixel and the second pixel includes but not limited to:The brightness value of pixel and the RGB of pixel (RGBColorModel, primaries model, oneKind of color standard, by the variation of red (R), green (G), blue (B) three Color Channels withAnd their stacks each other obtain color miscellaneous) value, wherein, brightness value and pixelThe color that the rgb value of point is photographic images and the inscape of brightness, at least by the first pixelThe brightness value of point or the second pixel and rgb value generate the current pixel point of target photographic images, canGetting all suitable target photographic images of color and brightness, effectively promote photographic imagesImage quality.
In addition, the lightness of the first the shooting body (such as, sky white clouds) environment of living in is greater than secondThe lightness of the shooting body (such as, ground scenery) environment of living in, in the time taking pictures, due toThe residing environment of the first the shooting body is compared with bright and cause the first the shooting body overexposure, and second countTake the photograph the residing environment of main body compared with secretly causing the second the shooting body excessively dark, so, can be by taking thisThe technical scheme of invention avoids above-mentioned situation to occur, and improves the imaging weight of photographic images, thereby carriesRising user experiences.
Fig. 3 shows the block diagram of terminal according to an embodiment of the invention.
As shown in Figure 3, terminal 300 according to an embodiment of the invention, comprising: as above-mentioned skillThe imaging device based on dual camera 200 in art scheme described in any one, therefore, this terminal 300Have with technique scheme in the imaging device based on dual camera 200 described in any one identicalTechnique effect, does not repeat them here.
Describe technical method of the present invention in detail below in conjunction with Fig. 4 and Fig. 5.
Fig. 4 shows the formation method based on dual camera according to another embodiment of the inventionSchematic flow sheet.
Fig. 5 shows the stream of the method for synthetic target photographic images according to an embodiment of the inventionJourney schematic diagram.
Dual camera by mobile phone (terminal) is to sky (the first the shooting body) and ground scenery(the second the shooting body) is example while taking pictures, and technical scheme of the present invention is described.
As shown in Figure 4, first, start the shoot function of mobile phone, open camera, by dual cameraTake pictures according to upper and lower arrangement (relative position of main camera and auxiliary camera).
Then, mobile camera, if camera is above main camera, also just illustrate main camera andSky (the first the shooting body) is on same relative position, by mobile phone preview interface (firstPreview image and the second preview image) from ground, (the second the shooting body) moves up (to firstThe shooting body moves), at this moment ground scenery is brighter, and sky is overexposure, when moving to skyWhen empty details occurs and ground scenery is dimmed, stops mobile (main camera and auxiliary camera relativeWhen the relative position relation of position relationship and the first the shooting body and the second the shooting body is identical, according to byThe style of shooting that the second the shooting body moves to the first the shooting body is taken pictures), then pass through respectivelyMain camera and auxiliary camera are successively taken pictures and are distinguished and data cachedly (obtain and include firstThe first preview image of the shooting body and the second the shooting body and the second preview image); If taking the photograph abovePicture head, for auxiliary camera, also just illustrates that main camera and sky are on different relative positions,By mobile phone preview interface (i.e. the first preview image and the second preview image), from sky, (first takes masterBody) gradually move down (to the second the shooting body), at this moment sky is had details in vain and ground sceneryPartially dark, in the time moving to the bright and sky overexposure of ground scenery, stop mobile (main camera and auxiliaryThe relative position relation phase of the relative position relation of camera and the first the shooting body and the second the shooting bodyInverse time, take pictures according to the style of shooting being moved to the second the shooting body by the first the shooting body),Then successively take pictures and distinguish data cached (obtaining by main camera and auxiliary camera respectivelyGet the first preview image and the second preview graph that include the first the shooting body and the second the shooting bodyPicture).
Then picture (A figure, the first preview image) bright with ground but sky overexposure is basic numberAccording to, the picture of buffer memory is synthesized, another picture is designated as B figure (the second preview image), closesBecoming seal is C figure (target photographic images), as shown in Figure 5, and the relatively Luma value of two pictures(brightness value), particularly: travel through successively in order the pixel of A figure and B figure, if A is figureThe Luma value of this pixel is less than 255 (maximum brightness value, i.e. default brightness values), and C figure shouldThe RGB of pixel and Luma value (property value) equal A schemes RGB and the Luma of this pixelValue (property value); If A scheme the Luma value of this pixel equal 255 (maximum brightness value, pre-If brightness value) and the Luma value of B figure corresponding pixel points equal 255 (maximum brightness value, defaultBrightness value), C schemes the RGB of this pixel and Luma value and equals A and scheme the RGB of this pixelAnd Luma value; If A scheme the Luma value of this pixel equal 255 (maximum brightness value, defaultBrightness value) and the Luma value of B figure corresponding pixel points be less than 255 (maximum brightness value, default brightDegree value), C scheme the RGB of this pixel and Luma value equal B scheme this pixel RGB andLuma value, finally obtains composite diagram. Technical scheme of the present invention is excellent according to mobile phone dual cameraGesture, designs a kind of formation method of the anti-overexposure of taking pictures based on dual camera, takes pictures easily to go out userWhen the Sky Scene of existing overexposure, can carry out synthesising picture according to the imaging of dual camera, based on notSky with angle is different with scenery depth of exposure, thus the detail section of imaging and not phase of overexposure partWith, and by using corresponding composition algorithm to synthesize, can retain bright ground scenery and thinSave, also can reduce to a certain extent the scope of sky overexposure, even under special screne, prevented sky mistakeExpose to the sun, be very easy to user and experience.
More than be described with reference to the accompanying drawings technical scheme of the present invention, can have effectively solved when passing throughDual camera when taking with the image of highlighted scene, the partially dark or back of the body of the shooting body being prone toThe problem of scape overexposure, thereby the image quality of raising photographic images, promote user and experience.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, forThose skilled in the art, the present invention can have various modifications and variations. All in essence of the present inventionWithin god and principle, any amendment of doing, be equal to replacement, improvement etc., all should be included in the present inventionProtection domain within.
Claims (10)
1. the formation method based on dual camera, is characterized in that, comprising:
In the time that shoot function is unlocked, judge the main camera of terminal and the relative position of auxiliary cameraWhether relation is identical with the relative position relation of the first the shooting body and the second the shooting body, obtains firstJudged result;
According to described the first judged result and default style of shooting respectively by described main camera and described inAuxiliary camera obtains the first preview that all comprises described the first the shooting body and described the second the shooting bodyImage and the second preview image;
According to default composition algorithm, described the first preview image and described the second preview image are synthesized to orderMark photographic images.
2. the formation method based on dual camera according to claim 1, is characterized in that,According to described the first judged result and described default style of shooting respectively by described main camera and described inThe step that auxiliary camera obtains described the first preview image and described the second preview image specifically comprises:
In described the first judged result while being identical, according to the first move receiving by describedOne preview image and described the second preview image are from described the second the shooting body to described the first the shooting bodyMobile, and take instruction according to receive first and obtain and comprise described the first the shooting body and described theDescribed first preview image of two the shooting bodies passes through described auxiliary camera according to described first simultaneouslyTake instruction and obtain described the second preview image;
In described the first judged result while being contrary, according to the second move receiving by describedOne preview image and described the second preview image are from described the first the shooting body to described the second the shooting bodyMobile, and take instruction according to receive second and obtain and comprise described the first the shooting body and described theDescribed first preview image of two the shooting bodies passes through described auxiliary camera according to described second simultaneouslyTake instruction and obtain described the second preview image.
3. the formation method based on dual camera according to claim 1 and 2, its feature existsIn, described according to default composition algorithm, described the first preview image and described the second preview image is syntheticFor target photographic images specifically comprises:
Obtain successively the correspondence of described the first preview image and described the second preview image according to preset orderThe first pixel and the brightness value of the second pixel;
Whether the brightness value that judges described the first pixel is less than default brightness value, obtains the second judgement knotReally;
Determine whether the attribute value generation institute according to described the first pixel according to described the second judged resultState the current pixel point of target photographic images, to synthesize described target according to described current pixel point successivelyPhotographic images.
4. according to the formation method based on dual camera described in right 3, it is characterized in that, described inDetermine whether according to order described in the attribute value generation of described the first pixel according to described the second judged resultThe current pixel point of mark photographic images, to take according to the synthetic described target of described current pixel point successivelyImage specifically comprises:
When described the second judged result is when being, described in the attribute value generation of described the first pixelThe current pixel point of target photographic images;
When described the second judged result is while being no, judge whether the brightness value of described the second pixel is less thanDescribed default brightness value; And
In the time judging that the brightness value of described the second pixel is less than described default brightness value, according to described theThe current pixel point of target photographic images described in the attribute value generation of two pixels, otherwise, according to describedThe current pixel point of target photographic images described in the attribute value generation of the first pixel.
5. the formation method based on dual camera according to claim 4, is characterized in that,
The property value of described the first pixel and described the second pixel comprises: the brightness value of pixel andThe rgb value of pixel;
The lightness of described the first the shooting body environment of living in is greater than described the second the shooting body environment of living inLightness.
6. the imaging device based on dual camera, is characterized in that, comprising:
Judge module, in the time that shoot function is unlocked, judges main camera and auxiliary the taking the photograph of terminalWhether the relative position relation of picture head and the relative position relation of the first the shooting body and the second the shooting bodyIdentical, obtain the first judged result;
Control module, described in passing through respectively according to described the first judged result and default style of shootingMain camera and described auxiliary camera obtain and all comprise described the first the shooting body and described the second shootingThe first preview image of main body and the second preview image;
Processing module, for according to default composition algorithm by described the first preview image and described second pre-The image of looking at synthesizes target photographic images.
7. the imaging device based on dual camera according to claim 6, is characterized in that,Described control module specifically for:
In described the first judged result while being identical, according to the first move receiving by describedOne preview image and described the second preview image are from described the second the shooting body to described the first the shooting bodyMobile, and control according to the first shooting instruction receiving and obtain and comprise described the first the shooting body and instituteState described first preview image of the second the shooting body, simultaneously by described in described auxiliary camera basisFirst takes instruction obtains described the second preview image;
In described the first judged result while being contrary, according to the second move receiving by describedOne preview image and described the second preview image are from described the first the shooting body to described the second the shooting bodyMobile, and control according to the second shooting instruction receiving and obtain and comprise described the first the shooting body and instituteState described first preview image of the second the shooting body, simultaneously by described in described auxiliary camera basisSecond takes instruction obtains described the second preview image.
8. according to the imaging device based on dual camera described in claim 6 or 7, its feature existsIn, described processing module specifically comprises:
Obtain submodule, for obtain successively described the first preview image and described according to preset orderThe first corresponding pixel of two preview images and the brightness value of the second pixel;
Judge submodule, whether be less than default brightness for the brightness value that judges described the first pixelValue, obtains the second judged result;
Determine submodule, for determining whether according to described the first pixel according to described the second judged resultThe current pixel point of target photographic images described in the attribute value generation of point, with successively according to described current pictureVegetarian refreshments synthesizes described target photographic images.
9. the imaging device based on dual camera according to claim 8, is characterized in that,Described definite submodule specifically for: when described the second judged result is when being, according to described the first pictureThe current pixel point of target photographic images described in the attribute value generation of vegetarian refreshments; And
Described judge submodule also for: when described the second judged result is while being no, judge described secondWhether the brightness value of pixel is less than described default brightness value; And
Described definite submodule specifically also for: judging that the brightness value of described the second pixel is less than instituteWhile stating default brightness value, according to target photographic images described in the attribute value generation of described the second pixelCurrent pixel point, otherwise, according to target photographic images described in the attribute value generation of described the first pixelCurrent pixel point.
10. the imaging device based on dual camera according to claim 9, is characterized in that,
The property value of described the first pixel and described the second pixel comprises: the brightness value of pixel andThe rgb value of pixel;
The lightness of described the first the shooting body environment of living in is greater than described the second the shooting body environment of living inLightness.
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