CN103546675A - Brightness adjustment method and electronic equipment - Google Patents
Brightness adjustment method and electronic equipment Download PDFInfo
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- CN103546675A CN103546675A CN201210245801.5A CN201210245801A CN103546675A CN 103546675 A CN103546675 A CN 103546675A CN 201210245801 A CN201210245801 A CN 201210245801A CN 103546675 A CN103546675 A CN 103546675A
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Abstract
The invention discloses a brightness adjustment method used for improving shooting quality. The method includes: acquiring first image information including environmental image information and object image information of at least one shooting object; performing brightness analysis on the first image information to generate a brightness analysis result; judging whether a brightness value of an environmental image corresponding to the environmental image information is required to be adjusted or not according to preset conditions and the brightness analysis result; if yes, adjusting the brightness value of the environmental image corresponding to the environmental image information. The invention further discloses electronic equipment used for implementing the method.
Description
Technical field
The present invention relates to computer and built-in field, particularly a kind of brightness adjusting method and electronic equipment.
Background technology
On display screen, place an object, when this object is taken, may be subject to the luminous impact of screen self, thereby the quality of disturbing this subject image to be acquired may make the photo of shooting clear not, reduces the probability that object is identified.
Summary of the invention
The embodiment of the present invention provides a kind of brightness adjusting method and electronic equipment, for solving the technical problem that prior art cannot brightness adjusting when taking, has realized the technique effect that improves shooting quality.
, being applied to an electronic equipment, described electronic equipment has a display screen, and described electronic equipment comprises that one can take the image acquisition units of described display screen top object, comprises the following steps:
Obtain the first image information, described the first image information comprises the object images information of ambient image information and at least one reference object;
Described the first image information is carried out to brightness analysis, generate a brightness analysis result;
According to pre-conditioned and described brightness analysis result, judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information;
When judgment result is that while being, the brightness value of the corresponding ambient image of described ambient image information is regulated.
The step of preferably, described the first image information being carried out to brightness analysis comprises: adopt central average metering, Partial metering, some photometry, Multi spot metering or cut apart Exposure Metering described the first image information is carried out to brightness analysis.
Preferably, according to pre-conditioned and described brightness analysis result, judge whether that the step that need to regulate the brightness value of the corresponding ambient image of described ambient image information comprises: the difference that shows in the corresponding object images of described object images information in brightness value more at least and the corresponding ambient image of described ambient image information brightness value more at least when described brightness analysis result not within described preset range time, is determined and need to be regulated this brightness value more at least in the corresponding ambient image of described ambient image information.
Preferably, when judgment result is that while being, the step that the brightness value of the corresponding ambient image of described ambient image information is regulated comprises: according to described preset range, the brightness value of the corresponding ambient image of described ambient image information is regulated.
Preferably, also comprise step: after carrying out brightness value adjusting, described the first image information is taken pictures, obtain its corresponding the first image.
Preferably, after obtaining its corresponding first image, also comprise step: the first image obtaining is identified, obtained recognition result.
, described electronic equipment has a display screen, comprising:
Can take the image acquisition units of described display screen top object, be used for obtaining the first image information, described the first image information comprises the object images information of ambient image information and at least one reference object, and described the first image information is carried out to brightness analysis, generate a brightness analysis result;
Judging unit, need to regulate the brightness value of the corresponding ambient image of described ambient image information for judging whether according to pre-conditioned and described brightness analysis result;
Regulon, for when judgment result is that while being, regulates the brightness value of the corresponding ambient image of described ambient image information.
Preferably, described image acquisition units is carried out brightness analysis specifically for adopting central average metering, Partial metering, some photometry, Multi spot metering or cutting apart Exposure Metering to described the first image information.
Preferably, described judging unit when the difference that shows in the corresponding object images of described object images information in brightness value more at least and the corresponding ambient image of described ambient image information brightness value more at least when described brightness analysis result is not within described preset range, is determined and need to be regulated this brightness value more at least in the corresponding ambient image of described ambient image information.
Preferably, described regulon specifically for: according to described preset range, the brightness value of the corresponding ambient image of described ambient image information is regulated.
Preferably, described image acquisition units, also for described the first image information being taken pictures after carrying out brightness value adjusting, obtains its corresponding the first image.
Preferably, described electronic equipment also comprises recognition unit, for the first image obtaining is identified, obtains recognition result.
Brightness adjusting method in the embodiment of the present invention is for obtaining the first image information, and described the first image information comprises object images information and the ambient image information of at least one reference object; Described the first image information is carried out to brightness analysis, generate a brightness analysis result; According to pre-conditioned and described brightness analysis result, judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information; When judgment result is that while being, the brightness value of the corresponding ambient image of described ambient image information is regulated.When the brightness of ambient image has influence on the brightness of reference object, the brightness of ambient image is regulated, make reference object as far as possible clear, improve the discrimination of reference object.
Accompanying drawing explanation
Fig. 1 is the main method flow chart of brightness regulation in the embodiment of the present invention;
Fig. 2 is the detailed structure view of electronic equipment in the embodiment of the present invention.
Embodiment
Brightness adjusting method in the embodiment of the present invention is for obtaining the first image information, and described the first image information comprises object images information and the ambient image information of at least one reference object; Described the first image information is carried out to brightness analysis, generate a brightness analysis result; According to pre-conditioned and described brightness analysis result, judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information; When judgment result is that while being, the brightness value of the corresponding ambient image of described ambient image information is regulated.When the brightness of ambient image has influence on the brightness of reference object, the brightness of ambient image is regulated, make reference object as far as possible clear, improve the discrimination of reference object.
Referring to Fig. 1, in the embodiment of the present invention, the main flow process of brightness adjusting method is as follows, described method can be applied in an electronic equipment, and described electronic equipment comprises a display screen, and described electronic equipment can also comprise that one can take the image acquisition units of described display screen top object:
Step 101: obtain the first image information, described the first image information comprises the object images information of ambient image information and at least one reference object.
Described image acquisition units can be positioned at described electronic equipment top, maybe can be positioned at described electronic equipment oblique upper, and it belongs to described electronic equipment, and it can be connected by wired or wireless mode with described electronic equipment.
Described image acquisition units can be obtained the first image information, can comprise the object images information of ambient image information and at least one reference object in this first image information.For example, described electronic equipment is a PAD (panel computer), and it has a touch-screen, is placed with article on this touch-screen, and for example these article are an apple, and this apple is described reference object.Described image acquisition units can be positioned at described PAD top, and described image acquisition units can be taken, and for example described image acquisition units can be obtained the object images information of apple and the ambient image information in certain limit around.
Step 102: described the first image information is carried out to brightness analysis, generate a brightness analysis result.
In the embodiment of the present invention, can adopt central average metering, middle body photometry, some photometry, Multi spot metering or cut apart the modes such as photometry described the first image information is carried out to brightness analysis.
For example, central average metering is to adopt maximum a kind of metering modes, the Exposure Metering that give tacit consent to central average metering as camera nearly all camera factory commercial city.Central authorities' average metering is mainly to consider that general cameraman's custom namely needs the accurate thing exposing to be placed on the centre of view finder the shooting body, so this part content of shooting is most important.Therefore be responsible for photometry photo-sensitive cell can by the whole light value of camera, organic separately the photometric data of middle body occupies most ratios, and photometric data beyond picture central authorities plays the booster action of photometry as fraction ratio.The processor of process camera, to the ratio after this two lattice numerical value weighted average, obtains the camera photometering data of taking.What for example the camera of certain brand adopted is exactly central emphasis average metering, the middle body photometry of this brand camera occupies 75% (this ratio Yin Ge producer brand different and to some extent difference) of whole photometry ratio, and the photometric data that other non-middle bodies extend to edge has gradually occupied 25% ratio.In most of shooting situations central emphasis photometry be a kind of very practical, be also most widely used metering mode, if but the main body of taking not in the central authorities of picture or take under backlighting condition, central emphasis photometry is not just very applicable.
Central authorities' average metering is a kind of traditional Exposure Metering, and the photometry algorithm of most of cameras is positions of paying attention to picture central authorities approximately 2/3, to also giving the consideration in some degree around.
Again for example, middle body photometry and central average metering are two kinds of different Exposure Meterings, central authorities' average metering is that to take middle section be auxiliary Exposure Metering as main other regions, middle body photometry is only photometry to be carried out in picture central authorities region, and photometric range is approximately 12 3 percent to 1 to carry out photometry.Middle body metering mode is the scene that is applicable to some light more complicated, now needs to be exposed more accurately, adopts middle body photometry can obtain the accurately photo of exposure of the shooting body.Middle body photometry can, for some special severe shooting environmental application, can guarantee that camera processor calculates the needed exposure of picture central authorities' main manifestations object part more.In the scenes such as stage, performance, backlight, this pattern is the most suitable, but owing to cutting apart the rise of photometry (matrix photometry) pattern, this pattern is now less gradually have been occurred in camera.
Partial metering's mode is that photometry is carried out in a certain part of picture.When shot subject and background have strong light and shade contrast, and the ratio of the shared picture of shot subject is when little, uses this Exposure Metering most suitable; In this case, Partial metering is more accurate than the one or two kind of Exposure Metering, again not image point Exposure Metering like that due to the certain photometry experience of the too narrow and small needs of photometry point be just not easy error.
Again for example, central authorities' average metering (central emphasis average metering) is although can show fully the light reaction of whole picture, but also there are many weak points, for example need accurately among a small circle object to expose when accurate, central authorities' average meterings (central emphasis average metering) just easily do not make so, even middle body photometry (Partial metering) sometimes scope also some is large.In order to overcome these weak points, some manufacturers develop this kind of point (SPOT) metering mode and avoid the impact of environment light source on main body photometry under light complex condition or backlight state.The scope of some photometry is to using a very low range region of picture window central authorities as exposure datum mark, and one of the photometry regions of great majority points photometry are percentage to 3 percent, take the light that unit records according to this narrower region, as exposure foundation.This is a kind of Exposure Metering quite accurately.
Point photometry is only to the accurate photometry in very little region, and outside region, the light and shade of scenery is on photometry without impact, so photometry precision is very high, its purposes is mainly can be to specific zonule photometry at a distance.
As for Multi spot metering with cut apart photometry and repeat no more herein, those skilled in the art can need to select different Exposure Meterings according to difference.Specifically can to system, set in advance, by system, according to the Exposure Metering of setting, carry out brightness analysis, or also can automatically select Exposure Metering by system, this automatic selection can be to select according to concrete reference object and shooting environmental, or also can be random selection.
Adopting wherein a kind of Exposure Metering to carry out after brightness analysis described the first image information, the brightness analysis result of can surviving.
Step 103: judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information according to pre-conditioned and described brightness analysis result.
In the embodiment of the present invention, can judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information according to described brightness analysis result.In the embodiment of the present invention, adopt the mode of the brightness of adjusting ambient image,, when the brightness of ambient image has influence on the definition of reference object, adopted the mode of the brightness of adjusting ambient image.Or also can work as the two brightness while influencing each other, also can regulate the brightness of reference object, take that can to make reference object try one's best clear be adjustment criteria.
In the embodiment of the present invention, can have at least one preset range, the difference of the brightness value of the every bit in the brightness value of any point in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information all need be within its corresponding preset range.Wherein, in the embodiment of the present invention, what described difference referred to can be the absolute value of difference.
The difference of the brightness value of any point in the corresponding object images of described object images information and the brightness value of every bit in the corresponding ambient image of described ambient image information can corresponding same preset range; Or, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the first preset range, the difference of the brightness value of the second point in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the second preset range, and described the first preset range can be different from described the second preset range; Or, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of first in the corresponding ambient image of described ambient image information can corresponding the 3rd preset range, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of second point in the corresponding ambient image of described ambient image information can corresponding the 4th preset range, and described the 3rd preset range can be different from described the 4th preset range.Or can also there be other situations.; described preset range can have one, or can have a plurality ofly, if set in the corresponding object images of described object images information, comprises M pixel; in the corresponding ambient image of described ambient image information, comprise N pixel, described preset range can have N at most
mindividual.
According to described brightness analysis result, can obtain brightness value corresponding to every bit in corresponding the first image of described the first image information, can obtain the brightness value of every bit in the brightness value of every bit in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information, can judge according to described pre-conditioned and described brightness analysis result, judge that the difference of the brightness value of any point in the corresponding object images of described object images information and the brightness value of the every bit in the corresponding ambient image of described ambient image information is whether within its corresponding preset range.
What for example, the difference of the brightness value of any point in the corresponding object images of described object images information and the brightness value of every bit in the corresponding ambient image of described ambient image information was corresponding is same preset range.The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described preset range time, can determine and will regulate the brightness value of first described in the corresponding ambient image of described ambient image information, to be adjusted in itself and the corresponding object images of described object images information the difference of the brightness value of first, within described preset range, be as the criterion.
Or for example, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the first preset range, the difference of the brightness value of the second point in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the second preset range, and described the first preset range can be different from described the second preset range.The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the first preset range time, can determine and will regulate the brightness value of first described in the corresponding ambient image of described ambient image information, to be adjusted in itself and the corresponding object images of described object images information the difference of the brightness value of first, within described the first preset range, be as the criterion.
Step 104: when judgment result is that while being, the brightness value of the corresponding ambient image of described ambient image information is regulated.
When judging definite need to adjusting the brightness value of the corresponding ambient image of described ambient image information, according to described pre-conditioned and described brightness analysis result, the brightness value of the corresponding ambient image of described ambient image information is regulated.
What for example, the difference of the brightness value of any point in the corresponding object images of described object images information and the brightness value of every bit in the corresponding ambient image of described ambient image information was corresponding is same preset range.The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described preset range time, can determine and will regulate the brightness value of first described in the corresponding ambient image of described ambient image information, to be adjusted in itself and the corresponding object images of described object images information the difference of the brightness value of first, within described preset range, be as the criterion.For example, described preset range is [0,5], the difference of the brightness value of first in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 6, exceeded described preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 5 with the difference of first described in the corresponding object images of described object images information at this first, within described preset range.
Or for example, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the first preset range, the difference of the brightness value of the second point in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the second preset range, and described the first preset range can be different from described the second preset range.The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the first preset range time, can determine and will regulate the brightness value of first described in the corresponding ambient image of described ambient image information, to be adjusted in itself and the corresponding object images of described object images information the difference of the brightness value of first, within described the first preset range, be as the criterion.For example, more described preset range is [0,5], the difference of the brightness value of first in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 6, exceeded described preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 5 with the difference of first described in the corresponding object images of described object images information at this first, within more described preset range.
In the embodiment of the present invention, after carrying out brightness regulation, can also take pictures to described the first image information, obtain its corresponding the first image.
After obtaining described the first image, can identify the first image obtaining, can obtain a recognition result.
By several specific embodiments, introduce below the method for brightness regulation of the present invention.
Embodiment mono-:
Described electronic equipment is a PAD, is placed with an apple on this PAD, and this apple is reference object, and this PAD is ambient image, and this apple and PAD form the first image.This PAD has an image acquisition units, and this image acquisition units is positioned at PAD top, can be directly over this PAD photographic images down.This PAD is connected by wired mode with this image acquisition units.
First described electronic equipment obtains described the first image information, and described the first image information comprises described ambient image information and described object images information.
Adopt the average Exposure Metering of central authorities to carry out brightness analysis, by the whole light value of camera, organic separately the photometric data of middle body occupies most ratios, and photometric data beyond picture central authorities plays the booster action of photometry as fraction ratio.Ratio through to after this two lattice numerical value weighted average, obtains taking required photometric data, obtains a brightness analysis result.
In the present embodiment, what the difference of the brightness value of any point in the corresponding object images of described object images information and the brightness value of every bit in the corresponding ambient image of described ambient image information was corresponding is same preset range.
The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described preset range, and the difference of the brightness value of the second point in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is within described preset range, can determines and will regulate the brightness value of first and described second point described in the corresponding ambient image of described ambient image information.It is all adjusted in itself and the corresponding object images of described object images information to the difference of the brightness value of first, within described preset range, be as the criterion.
In the present embodiment, described preset range is [0,10].For example, the difference of the brightness value of first in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 11, exceeded described preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 10 with the difference of first described in the corresponding object images of described object images information at this first, within described preset range; The difference of the brightness value of the second point in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 13, exceeded described preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 9 with the difference of first described in the corresponding object images of described object images information at this first, within described preset range.
After carrying out brightness regulation, can take pictures to described the first image information, obtain its corresponding the first image.
After obtaining the first image, the first image obtaining is identified, obtain recognition result.It is comparatively clear that this recognition result can show the object images to take, and improved the resolution of object images.
Embodiment bis-:
Described electronic equipment is a PAD, is placed with a water tumbler on this PAD, and this water tumbler is reference object, and this PAD is ambient image, and this water tumbler and PAD form the first image.This PAD has an image acquisition units, and this image acquisition units is positioned at PAD top, can be directly over this PAD photographic images down.This PAD is connected by wireless mode with this image acquisition units.
First described electronic equipment obtains described the first image information, and described the first image information comprises described ambient image information and described object images information.
Adopt middle body Exposure Metering to carry out brightness analysis, photometry is carried out in picture central authorities region, photometric range is approximately 12 3 percent to 1 to carry out photometry, obtains a brightness analysis result.
In the present embodiment, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the first preset range, the difference of the brightness value of the second point in the corresponding object images of described object images information and the brightness value of any point in the corresponding ambient image of described ambient image information can corresponding the second preset range, and described the first preset range can be different from described the second preset range.
The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the first preset range, the difference of the brightness value of the second point in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the first preset range, and, the difference of the brightness value of first in the brightness value of the second point in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the second preset range, can determine and will regulate the brightness value of first and described second point described in the corresponding ambient image of described ambient image information.
In the present embodiment, described the first preset range is [0,5], and described the second preset range is [0,6].For example, the difference of the brightness value of first in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 6, exceeded described the first preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 5 with the difference of first described in the corresponding object images of described object images information at this first, within described the first preset range; The difference of the brightness value of the second point in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 7, exceeded described the first preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 4 with the difference of first described in the corresponding object images of described object images information at this first, within described the first preset range; The difference of the brightness value of first in the brightness value of the second point before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 7, exceeded described the second preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to that to make described in this second point and the corresponding object images of described object images information the difference of first be 4, within described the second preset range.
In the present embodiment, same point in the corresponding ambient image of ambient image information will with the corresponding object images of object images information in difference compare, because it has different preset range, therefore the same point in the corresponding ambient image of possibility ambient image information can relate to different regulative modes.In the present embodiment, take to be adjusted to and can meet that each is pre-conditioned as best, if cannot all meet, take meet maximum pre-conditioned as good.
After carrying out brightness regulation, can take pictures to described the first image information, obtain its corresponding the first image.
After obtaining the first image, the first image obtaining is identified, obtain recognition result.It is comparatively clear that this recognition result can show the object images to take, and improved the resolution of object images.
Embodiment tri-:
Described electronic equipment is a PAD, is placed with a book on this PAD, and this book is reference object, and this PAD is ambient image, and this book and PAD form the first image.This PAD has an image acquisition units, and this image acquisition units is positioned at PAD oblique upper, can be at the oblique upper of this PAD photographic images down.This PAD is connected by wired mode with this image acquisition units.
First described electronic equipment obtains described the first image information, and described the first image information comprises described ambient image information and described object images information.
Adopt a some Exposure Metering to carry out brightness analysis, using a very low range region of picture window central authorities as exposure datum mark, photometry region is 2 percent, takes the light that unit records according to this narrower region, as exposure foundation.Obtain a brightness analysis result.
In the present embodiment, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of first in the corresponding ambient image of described ambient image information can corresponding the 3rd preset range, the difference of the brightness value of the second point in the corresponding object images of described object images information and the brightness value of second point in the corresponding ambient image of described ambient image information can corresponding the 4th preset range, and described the 3rd preset range can be different from described the 4th preset range.
The difference of the brightness value of first in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the 3rd preset range, the difference of the brightness value of the second point in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the 4th preset range, and, the difference of the brightness value thirdly in the brightness value of first in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is not within described the 5th preset range, can determine will be to the first point described in the corresponding ambient image of described ambient image information, described second point and described brightness value thirdly regulate.
In the present embodiment, described the 3rd preset range is [0,5], and described the 4th preset range is [0,6], and described the 5th preset range is [0,8].For example, the difference of the brightness value of first in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 6, exceeded described the 3rd preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 5 with the difference of first described in the corresponding object images of described object images information at this first, within described the 3rd preset range; The difference of the brightness value of the second point in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 7, exceeded described the 4th preset range, can regulate described in the corresponding ambient image of described ambient image information the brightness value of first, for example can be adjusted to and make be 4 with the difference of first described in the corresponding object images of described object images information at this first, within described the 4th preset range; The difference of the brightness value thirdly in the brightness value of first before adjusting in the corresponding object images of described object images information and the corresponding ambient image of described ambient image information is 10, exceeded described the 5th preset range, can regulate brightness value thirdly described in the corresponding ambient image of described ambient image information, for example can be adjusted to that to make this be thirdly 8 with the difference of first described in the corresponding object images of described object images information, within described the 5th preset range.
After carrying out brightness regulation, can take pictures to described the first image information, obtain its corresponding the first image.
After obtaining the first image, the first image obtaining is identified, obtain recognition result.It is comparatively clear that this recognition result can show the object images to take, and improved the resolution of object images.
Embodiment tetra-:
Described electronic equipment is a PAD, is placed with a book on this PAD, and this book is reference object, and this PAD is ambient image, and this book and PAD form the first image.This PAD has an image acquisition units, and this image acquisition units is positioned at PAD oblique upper, can be at the oblique upper of this PAD photographic images down.This PAD is connected by wireless mode with this image acquisition units.
First described electronic equipment obtains described the first image information, and described the first image information comprises described ambient image information and described object images information.
Adopt a some Exposure Metering to carry out brightness analysis, using a very low range region of picture window central authorities as exposure datum mark, photometry region is 2 percent, takes the light that unit records according to this narrower region, as exposure foundation.Obtain a brightness analysis result.
In the present embodiment, the difference of the brightness value of first in the corresponding object images of described object images information and the brightness value of first in the corresponding ambient image of described ambient image information can corresponding the 3rd preset range, the difference of the brightness value of the second point in the corresponding object images of described object images information and the brightness value of second point in the corresponding ambient image of described ambient image information can corresponding the 4th preset range, and described the 3rd preset range can be different from described the 4th preset range.
The difference that described brightness analysis result shows the brightness value of the every bit in the corresponding ambient image of described ambient image information and the brightness value of the every bit in the corresponding object images of described object images information all, within preset range, therefore regulates without any point in the corresponding ambient image of described ambient image information.
Directly described the first image information is taken pictures, obtain its corresponding the first image.
After obtaining the first image, the first image obtaining is identified, obtain recognition result.It is comparatively clear that this recognition result can show the object images to take, and improved the resolution of object images.
Referring to Fig. 2, the present invention also provides a kind of electronic equipment, and described electronic equipment comprises image acquisition units 201, can also comprise judging unit 202 and regulon 203.Electronic equipment described in the embodiment of the present invention can also comprise recognition unit 204.Described electronic equipment also has a display screen.
Judging unit 202 need to regulate the brightness value of the corresponding ambient image of described ambient image information for judging whether according to pre-conditioned and described brightness analysis result.
Judging unit 202 specifically can when the difference that shows in the corresponding object images of described object images information in brightness value more at least and the corresponding ambient image of described ambient image information brightness value more at least when described brightness analysis result be not within described preset range, be determined and need to be regulated this brightness value more at least in the corresponding ambient image of described ambient image information.
Brightness adjusting method in the embodiment of the present invention is for obtaining the first image information, and described the first image information comprises object images information and the ambient image information of at least one reference object; Described the first image information is carried out to brightness analysis, generate a brightness analysis result; According to pre-conditioned and described brightness analysis result, judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information; When judgment result is that while being, the brightness value of the corresponding ambient image of described ambient image information is regulated.When the brightness of ambient image has influence on the brightness of reference object, the brightness of ambient image is regulated, make reference object as far as possible clear, improve the discrimination of reference object.
In the embodiment of the present invention, can adopt different Exposure Meterings, can select as the case may be.
In the embodiment of the present invention, can according to brightness analysis result, regulate respectively the brightness value of each pixel in the corresponding ambient image of described ambient image information, can make to regulate result comparatively accurate, can access the image of reference object more clearly.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (12)
1. a brightness adjusting method, is applied to an electronic equipment, and described electronic equipment has a display screen, it is characterized in that, described electronic equipment comprises that one can take the image acquisition units of described display screen top object, comprises the following steps:
Obtain the first image information, described the first image information comprises the object images information of ambient image information and at least one reference object;
Described the first image information is carried out to brightness analysis, generate a brightness analysis result;
According to pre-conditioned and described brightness analysis result, judge whether to regulate the brightness value of the corresponding ambient image of described ambient image information;
When judgment result is that while being, the brightness value of the corresponding ambient image of described ambient image information is regulated.
2. the method for claim 1, it is characterized in that, the step that described the first image information is carried out to brightness analysis comprises: adopt central average metering, Partial metering, some photometry, Multi spot metering or cut apart Exposure Metering described the first image information is carried out to brightness analysis.
3. the method for claim 1, it is characterized in that, according to pre-conditioned and described brightness analysis result, judge whether that the step that need to regulate the brightness value of the corresponding ambient image of described ambient image information comprises: the difference that shows in the corresponding object images of described object images information in brightness value more at least and the corresponding ambient image of described ambient image information brightness value more at least when described brightness analysis result is not within described preset range time, determine and need to regulate this brightness value more at least in the corresponding ambient image of described ambient image information.
4. the method for claim 1, it is characterized in that, when judgment result is that while being, the step that the brightness value of the corresponding ambient image of described ambient image information is regulated comprises: according to described preset range, the brightness value of the corresponding ambient image of described ambient image information is regulated.
5. the method for claim 1, is characterized in that, also comprises step: after carrying out brightness value adjusting, described the first image information is taken pictures, obtain its corresponding the first image.
6. method as claimed in claim 5, is characterized in that, also comprises step after obtaining its corresponding first image: the first image obtaining is identified, obtained recognition result.
7. an electronic equipment, described electronic equipment has a display screen, it is characterized in that, comprising:
Can take the image acquisition units of described display screen top object, be used for obtaining the first image information, described the first image information comprises the object images information of ambient image information and at least one reference object, and described the first image information is carried out to brightness analysis, generate a brightness analysis result;
Judging unit, need to regulate the brightness value of the corresponding ambient image of described ambient image information for judging whether according to pre-conditioned and described brightness analysis result;
Regulon, for when judgment result is that while being, regulates the brightness value of the corresponding ambient image of described ambient image information.
8. electronic equipment as claimed in claim 7, is characterized in that, described image acquisition units is carried out brightness analysis specifically for adopting central average metering, Partial metering, some photometry, Multi spot metering or cutting apart Exposure Metering to described the first image information.
9. electronic equipment as claimed in claim 7, it is characterized in that, described judging unit when the difference that shows in the corresponding object images of described object images information in brightness value more at least and the corresponding ambient image of described ambient image information brightness value more at least when described brightness analysis result is not within described preset range, is determined and need to be regulated this brightness value more at least in the corresponding ambient image of described ambient image information.
10. electronic equipment as claimed in claim 7, is characterized in that, described regulon specifically for: according to described preset range, the brightness value of the corresponding ambient image of described ambient image information is regulated.
11. electronic equipments as claimed in claim 7, is characterized in that, described image acquisition units, also for described the first image information being taken pictures after carrying out brightness value adjusting, obtains its corresponding the first image.
12. electronic equipments as claimed in claim 7, is characterized in that, described electronic equipment also comprises recognition unit, for the first image obtaining is identified, obtain recognition result.
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