CN104853110A - Flash lamp control method and terminal - Google Patents
Flash lamp control method and terminal Download PDFInfo
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- CN104853110A CN104853110A CN201510217893.XA CN201510217893A CN104853110A CN 104853110 A CN104853110 A CN 104853110A CN 201510217893 A CN201510217893 A CN 201510217893A CN 104853110 A CN104853110 A CN 104853110A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
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Abstract
The embodiment of the present invention discloses a flash lamp control method and a terminal. The method comprises the steps of acquiring light luminance values in all sub-image regions contained in an image displayed in the imaging region of the terminal; for each sub-image region, judging whether the acquired light luminance value of the sub-image region is within the range from a preset minimum luminance value to a preset maximum luminance value or not; on the premise that the acquired light luminance value of the sub-image region is larger than the preset maximum luminance value, controlling a flash lamp corresponding to the above sub-image region to be switched off, wherein the sub-image regions and flash lamps are in one-to-one correspondence manner; on the premise that the acquired light luminance value of the sub-image region is smaller than the preset minimum luminance value, regulating the light luminance value of the flash lamp corresponding to the above sub-image region to be a target luminance value, wherein the target luminance value is the difference value between a standard exposure value and the light luminance value of the sub-image region, and the standard exposure value is between the preset minimum luminance value and the preset maximum luminance value. According to the embodiments of the invention, the shooting effect of the terminal is improved during the shooting process. Meanwhile, the shooting experience of users is effectively improved.
Description
Technical field
The present invention relates to field of terminal technology, particularly relate to a kind of flash lamp control method and terminal.
Background technology
Along with the develop rapidly of terminal technology, the mobile terminal possessing shoot function gets more and more, such as: digital camera, mobile phone, panel computer etc.In addition, the mobile terminal great majority possessing shoot function are also configured with a photoflash lamp, the quality of taking pictures under can improving low light environment by photoflash lamp while being configured with camera.But find in practice, the bright dark degree of the scenery presented in camera during shooting can there are differences, under a part of scenery of possibility is in high light, and under another part scenery is in the low light level, when now utilizing same photoflash lamp to carry out light filling, easily cause part scenery over-exposed, or the problem such as part scenery is under-exposed, thus the photographic quality shot is declined, have a strong impact on shooting effect.
Summary of the invention
Embodiments providing a kind of flash lamp control method and terminal, the shooting effect of terminal can be improved when taking.
Embodiments provide a kind of flash lamp control method, comprising:
Obtain the brightness values of each sub-image area included by image of the imaging region display of terminal;
For sub-image area described in each, judge whether the brightness values of described sub-image area is between default minimum light brightness value and default maximum luminance value;
If the brightness values of described sub-image area is greater than described default maximum luminance value, control photoflash lamp corresponding to described sub-image area and close, wherein, a sub-image area is corresponding with the photoflash lamp of in flash lamp module;
If the brightness values of described sub-image area is less than described default minimum light brightness value, the brightness values of photoflash lamp corresponding for described sub-image area is adjusted to target brightness value, described target brightness value is the difference between the brightness values of standard exposure value and described sub-image area, and described standard exposure value is between described default minimum light brightness value and described default maximum luminance value.
Correspondingly, the embodiment of the present invention additionally provides a kind of terminal, comprising:
Acquiring unit, the brightness values of each sub-image area included by the image that the imaging region for obtaining terminal shows;
Judging unit, for for sub-image area described in each, judges whether the brightness values of described sub-image area is between default minimum light brightness value and default maximum luminance value;
Control unit, for when described judging unit judges that the brightness values of described sub-image area is greater than described default maximum luminance value, control photoflash lamp corresponding to described sub-image area to close, wherein, a sub-image area is corresponding with the photoflash lamp of in flash lamp module;
Regulon, for when described judging unit judges that the brightness values of described sub-image area is less than described default minimum light brightness value, the brightness values of photoflash lamp corresponding for described sub-image area is adjusted to target brightness value, described target brightness value is the difference between the brightness values of standard exposure value and described sub-image area, and described standard exposure value is between described default minimum light brightness value and described default maximum luminance value.
In the embodiment of the present invention, in shooting process, the brightness values of each sub-image area included by image of the imaging region display of terminal can be obtained, for each sub-image area, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, if be greater than default maximum luminance value, control photoflash lamp corresponding to this sub-image area to close, if be less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, this target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, standard exposure value is between default minimum light brightness value and default maximum luminance value.Implement the embodiment of the present invention, in shooting process, the brightness values of the photoflash lamp that brightness values and the magnitude relationship of default brightness values of each sub-image area included by image that can be shown by the imaging region of comparison terminal regulate each sub-image area corresponding, thus shooting effect when can improve shooting, and then improve the photographic quality shot, effectively improve user and take experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of flash lamp control method that the embodiment of the present invention provides;
Fig. 2 is the schematic flow sheet of the another kind of flash lamp control method that the embodiment of the present invention provides;
Fig. 3 is the structural representation of a kind of terminal that the embodiment of the present invention provides;
Fig. 4 is the structural representation of the another kind of terminal that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of flash lamp control method and terminal, shooting effect during shooting can be improved, effectively improve user and take experience.Below be described in detail respectively.
Refer to Fig. 1, Fig. 1 is the schematic flow sheet of a kind of flash lamp control method that the embodiment of the present invention provides.As shown in Figure 1, this flash lamp control method can comprise the following steps:
The brightness values of each sub-image area included by image that S101, the imaging region obtaining terminal show.
In the embodiment of the present invention, terminal can include but not limited to that smart mobile phone, panel computer, palmtop PC, personal digital assistant (Personal Digital Assistant, PAD), digital camera etc. have the device of shoot function.
In the embodiment of the present invention, terminal need be integrated with camera and photoflash lamp, and the imaging region of terminal can be the display screen of terminal, and the size of imaging region can be system default; Also can be adjustable, can be the size that user arranges imaging region voluntarily, also can be the size that terminal will be arranged when once taking before the size adjustment of imaging region to user automatically.When the screening-mode of terminal is in opening, external scene can be caught by camera, and external scene is presented in the imaging region of terminal in the form of images.
In the embodiment of the present invention, before the brightness values of each sub-image area included by the image that the imaging region performing step S101 acquisition terminal shows, the screening-mode of terminal need be opened in advance.
As the optional execution mode of one, the embodiment of opening the screening-mode of terminal can comprise the following steps:
11) the screening-mode open command that user operation target button triggers is received;
12) respond this screening-mode open command, open the screening-mode of terminal.
In this embodiment, target button can be the physical button in terminal, and target button can be a button, also can be the combination of multiple button, screening-mode open command can be user short by or long according to target button trigger; Target button also can be virtual key, and screening-mode open command can be that user click or the camera application icon double-clicked in terminal trigger.
As the optional execution mode of one, performing step 11) receive the screening-mode open command that user operation target button triggers after, and in execution step 12) responding this screening-mode open command, before opening the screening-mode of terminal, can also comprise the following steps:
13) export information, this information is for pointing out input information to be verified;
14) information to be verified of this information of response input is received;
15) verify that whether this information to be verified is consistent with default authorization information; If verify, this information to be verified is consistent with default authorization information, then perform step 12) respond this screening-mode open command, open the exposal model of terminal.
In this embodiment, after terminal receives the screening-mode open command that user operation target button triggers, output is used for pointing out the information inputting information to be verified by terminal; And terminal can export the information input port to be verified for inputting information to be verified.
In this embodiment, this information to be verified can include but not limited to any one or a few the combination in password to be verified, finger print information to be verified, shape of face information to be verified, iris information to be verified, retinal information to be verified and voiceprint to be verified.
In this embodiment, this default authorization information can include but not limited to default authentication password, presets checking finger print information, preset checking shape of face information, presets checking iris information, presets checking retinal information and preset any one or a few the combination in checking voiceprint.
In this embodiment, above-mentioned default authorization information can comprise fingerprint string information and input time corresponding to each fingerprint; So correspondingly, verify that whether information to be verified is consistent with default authorization information can comprise the following steps:
Whether checking fingerprint string is identical with the fingerprint string that default authorization information comprises, and whether the difference of the input time of identical fingerprints is all less than preset value, if checking fingerprint string is identical with the fingerprint string that default authorization information comprises, and the difference of the input time of identical fingerprints is all less than preset value, so can verify that information to be verified is consistent with default authorization information; Otherwise, verify information to be verified and default authorization information inconsistent.Wherein, by implementing this execution mode, can prevent disabled user from terminal, opening screening-mode, thus can effectively prevent terminal from wantonly being operated by disabled user.
In the embodiment of the present invention, because external environment there are differences, the intensity of illumination that in the image that terminal collects, zones of different receives may be different, thus the distribution situation of the brightness values in regional is also not quite similar.According to the brightness values distribution situation of the image of imaging region display, this imaging region can be divided into several sub-image areas, thus the brightness values of each sub-image area can be obtained further.In addition, it also can be that terminal system is given tacit consent to ready-portioned in advance that imaging region is divided into each sub-image area, as imaging region being divided into symmetrical four sub-image areas etc.
S102, for each above-mentioned sub-image area, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value.
In the embodiment of the present invention, for each sub-image area, the brightness values of this sub-image area and the brightness values pre-set can be compared.The brightness values pre-set can be the brightness values needed for camera normal exposure of terminal, it can be a span, the critical value upper limit of this scope is for presetting maximum luminance value, the lower limit of critical value is for presetting minimum light brightness value, now, preset maximum luminance value and default minimum light brightness value unequal; Also can be a concrete value, now, preset minimum light brightness value and be worth equal with default maximum luminance.
In the embodiment of the present invention, default minimum light brightness value and default maximum luminance value can be that user is arranged voluntarily, and user can modify to these two values according to self-demand and/or external environment; Default minimum light brightness value and default maximum luminance value also can be that terminal system is given tacit consent to, and now, user can not modify to it.
If the brightness values of this sub-image area of S103 is greater than default maximum luminance value, controls photoflash lamp corresponding to this sub-image area and close.
In the embodiment of the present invention, flash lamp module is integrated with in terminal, this flash lamp module comprises at least two photoflash lamps, wherein, a sub-image area can be corresponding with the one or more photoflash lamps in flash lamp module, can pre-set each sub-image area correspondence which or which photoflash lamp.
In the embodiment of the present invention, when the brightness values of this sub-image area is greater than default maximum luminance value, show that this sub-image area brightness values is sufficient, do not need recycling photoflash lamp to carry out light filling, therefore, the photoflash lamp that can control this sub-image area corresponding cuts out.
In the embodiment of the present invention, when the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, also can controls photoflash lamp corresponding to this sub-image area and close.
If the brightness values of this sub-image area of S104 is less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, and standard exposure value is between default minimum light brightness value and default maximum luminance value.
In the embodiment of the present invention, when the brightness values of this sub-image area is less than default minimum light brightness value, show that the brightness values of this sub-image area can not meet the brightness values needed for camera normal exposure, now, if do not utilize photoflash lamp to carry out light filling, the photo light that this sub-image area then can be made to present is weak, photo presents unintelligible, thus affects photographic quality.When the photoflash lamp utilizing this sub-image area corresponding carries out light filling, the first brightness values according to this sub-image area and the brightness values needed for camera normal exposure is needed to calculate the brightness values of photoflash lamp corresponding to this sub-image area, the risk that flash lighting is not enough or light filling is excessive can be reduced like this, now, the brightness values of photoflash lamp is the brightness values of the actual output of photoflash lamp.
In the embodiment of the present invention, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, target brightness value is that the difference of the brightness values by calculating this sub-image area and the standard exposure value needed for camera normal exposure obtains, wherein, standard exposure value can be default minimum light brightness value, it can be default maximum luminance value, can also be the median between default minimum light brightness value and default maximum luminance value, also can be an arbitrary value between default minimum light brightness value and default maximum luminance value.Standard exposure value can be terminal system acquiescence, also can be that user is arranged voluntarily.
For example, suppose that the brightness values scope needed for camera normal exposure of terminal is 800Lx to 1200Lx, namely presetting minimum light brightness value is 800Lx, and presetting maximum luminance value is 1200Lx, and standard exposure value is 1000Lx.The brightness values of each sub-image area and default minimum light brightness value and default maximum luminance value can be compared, to determine whether the brightness values of sub-image area is between 800Lx to 1200Lx.When judging that the brightness values of a sub-image area is greater than default maximum luminance value, photoflash lamp corresponding to this sub-image area can be controlled and close; When judging that the brightness values of a sub-image area is less than default minimum light brightness value, calculate the brightness values (being assumed to be 700Lx) of this sub-image area and the absolute difference of standard exposure value 1000Lx, and the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to this absolute difference, i.e. 300Lx; When judging that the brightness values of a sub-image area is between default minimum light brightness value and default maximum luminance value, also can control photoflash lamp corresponding to this sub-image area and closing.
In the method described by Fig. 1, in shooting process, the brightness values of each sub-image area included by image of the imaging region display of terminal can be obtained, for each sub-image area, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, if be greater than default maximum luminance value, control photoflash lamp corresponding to this sub-image area to close, if be less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, this target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, standard exposure value is between default minimum light brightness value and default maximum luminance value.By implementing the method described by Fig. 1, can in shooting process, the brightness values of the photoflash lamp that brightness values and the magnitude relationship of default brightness values of each sub-image area included by the image shown by the imaging region of comparison terminal regulate each sub-image area corresponding, thus shooting effect when can improve shooting, and then improve the photographic quality shot, effectively improve user and take experience.
Refer to Fig. 2, Fig. 2 is the schematic flow sheet of the another kind of flash lamp control method that the embodiment of the present invention provides.As shown in Figure 2, this flash lamp control method can comprise the following steps:
The brightness values of each sub-image area included by image that S201, the imaging region obtaining terminal show.
As the optional execution mode of one, before the brightness values of each sub-image area included by the image that the imaging region performing step S201 acquisition terminal shows, the flash lamp control method described by Fig. 2 can also comprise the following steps:
21) the brightness values distributed intelligence of the image of the imaging region display of terminal is obtained;
22) according to the brightness values distributed intelligence of this image, this image is divided into each sub-image area.
In this embodiment, because external scene illuminance there are differences, under some scenery are in intense light irradiation, under some scenery are in low-light, thus the brightness values of the image zones of different that camera collection is arrived then may be different.Therefore, according to the brightness values distributed intelligence of image, this image can be divided into several sub-image areas.
Be understandable that, terminal system acquiescence image divided sub-image area then without the need to obtaining the brightness values distributed intelligence of image again to carry out picture portion.
In the embodiment of the present invention, after image has divided several sub-image areas, the brightness values of each sub-image area can be obtained.
S202, for each above-mentioned sub-image area, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value.
If the brightness values of this sub-image area of S203 is greater than default maximum luminance value, if or the brightness values of this sub-image area be between default minimum light brightness value and default maximum luminance value, control photoflash lamp corresponding to this sub-image area and close.
If the brightness values of this sub-image area of S204 is less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, and standard exposure value is between default minimum light brightness value and default maximum luminance value.
In the embodiment of the present invention, before the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, first need calculate target brightness value, its computational process is: calculate the difference between standard exposure value and the brightness values of sub-image area, and this difference is defined as target brightness value, wherein, standard exposure value is between default minimum light brightness value and default maximum luminance value.
As the optional execution mode of one, after execution step S202 judges that the brightness values of this sub-image area is less than default minimum light brightness value, and perform before the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value by step S204, the flash lamp control method described by Fig. 2 can also comprise the following steps:
23) obtain preview image central point corresponding to this sub-image area to camera central point straight line with the angle of straight line of preview image central point corresponding to this sub-image area photoflash lamp central point corresponding to this sub-image area;
24) judge whether this angle is less than default angle, if not, the position of the photoflash lamp regulating this sub-image area corresponding, until this angle is less than default angle, wherein, be photoflash lamp corresponding to this sub-image area carries out light filling best angle to this sub-image area when this angle is less than default angle.
In this embodiment, the photoflash lamp that the flash lamp module of terminal comprises is rotatable, and the position of photoflash lamp can be regulated to make it carry out light filling at best orientation to image.
Be understandable that, can before the brightness values of the photoflash lamp regulating this sub-image area corresponding, the position of the photoflash lamp regulating this sub-image area corresponding, carries out light filling in the position of the best to this sub-image area with the photoflash lamp making this sub-image area corresponding; Also can after the brightness values regulating photoflash lamp corresponding to this sub-image area, then the position of the photoflash lamp regulating this sub-image area corresponding, the embodiment of the present invention is not construed as limiting.
S205, obtain the color parameter value of this sub-image area.
S206, color parameter value according to this sub-image area, regulate the color parameter value of photoflash lamp corresponding to this sub-image area and the color parameter value of this sub-image area to match.
In the embodiment of the present invention, the color parameter value of this sub-image area can be the rgb value of this sub-image area, regulates the color of photoflash lamp corresponding to this sub-image area to mate with this rgb value according to this rgb value.As being 255,0, when 0 when rgb value, show that the color of now this sub-image area is for red, now, the color of the photoflash lamp that this sub-image area can be regulated corresponding is for red; When rgb value is 0,0, when 255, show that the color of now this sub-image area is for blue, now, the color of the photoflash lamp that this sub-image area can be regulated corresponding is for blue.Implement present embodiment, the color of the photoflash lamp that this sub-image area can be regulated corresponding according to the color parameter value of this sub-image area, make photoflash lamp also carry out complementary color while carrying out light filling to image, thus make that the photo color shot is more bright-coloured, photo is more attractive in appearance.
As the optional execution mode of one, the sub-image area of default minimum light brightness value is less than for each brightness values, regulating after the parameter value of photoflash lamp corresponding to this sub-image area and the parameter value of this sub-image area match, terminal can also export information, has been in best shooting state to point out user's present terminal.Wherein, the parameter value of photoflash lamp comprises any one or a few the combination in the color of the brightness values of photoflash lamp, the position of photoflash lamp and photoflash lamp.
As the optional execution mode of one, the flash lamp control method described by Fig. 2 can also comprise the following steps:
25) the shooting instruction of user's input is received;
26) respond this shooting instruction, under the state of the parameter value of control terminal after the parameter value of photoflash lamp is in adjustment, destination object is taken, and obtain the image taken and obtain.
Wherein, shooting instruction can be that certain target button that user clicks in terminal triggers, and also can be that the optional position that user clicks terminal imaging region is triggered.
By implementing the method described by Fig. 2, can in shooting process, the brightness values of the photoflash lamp that brightness values and the magnitude relationship of default brightness values of each sub-image area included by the image shown by the imaging region of comparison terminal regulate each sub-image area corresponding; And the position of the photoflash lamp that each sub-image area can be regulated corresponding, be in best light filling position to make photoflash lamp corresponding to each sub-image area; And complementary color is carried out in this region of Color pair of the photoflash lamp regulating each sub-image area corresponding, thus shooting effect when can improve shooting, and then improve the photographic quality shot, effectively improve user and take experience.
Refer to Fig. 3, Fig. 3 is the structural representation of a kind of terminal that the embodiment of the present invention provides, for performing the flash lamp control method that the embodiment of the present invention provides.As shown in Figure 3, this terminal can comprise:
Acquiring unit 301, the brightness values of each sub-image area included by the image that the imaging region for obtaining terminal shows.
In the embodiment of the present invention, terminal need be integrated with camera and photoflash lamp, and the imaging region of terminal can be the display screen of terminal, and the size of imaging region can be system default; Also can be adjustable, can be the size that user arranges imaging region voluntarily, also can be the size that terminal will be arranged when once taking before the size adjustment of imaging region to user automatically.When the screening-mode of terminal is in opening, external scene can be caught by camera, and external scene is presented in the imaging region of terminal in the form of images.
In the embodiment of the present invention, obtain the brightness values of each sub-image area included by image of the imaging region display of terminal at acquiring unit 301 before, terminal need open screening-mode in advance.
As the optional execution mode of one, the terminal shown in Fig. 3 can also comprise:
First receiving element 31, before the brightness values of each sub-image area included by the image that the imaging region for obtaining terminal at acquiring unit 301 shows, receives the screening-mode open command that user operation target button triggers;
Opening unit 32, for responding this screening-mode open command, opening the screening-mode of terminal.
In this embodiment, target button can be the physical button in terminal, and target button can be a button, also can be the combination of multiple button, screening-mode open command can be user short by or long according to target button trigger; Target button also can be virtual key, and screening-mode open command can be that user click or the camera application icon double-clicked in terminal trigger.
As the optional execution mode of one, the terminal shown in Fig. 3 can also comprise:
Output unit 33, for receive screening-mode open command that user operation target button triggers at above-mentioned first receiving element 31 after, export information, this information is for pointing out input information to be verified;
Second receiving element 34, for receiving the information to be verified of this information of response input;
Authentication unit 35, for verifying that whether this information to be verified is consistent with default authorization information; If verify, this information to be verified is consistent with default authorization information, then trigger above-mentioned unlatching unit 32 and perform this screening-mode open command of above-mentioned response, opens the operation of the screening-mode of terminal.
In this embodiment, after the first receiving element 31 receives the screening-mode open command that user operation target button triggers, output is used for pointing out the information inputting information to be verified by output unit 33; And output unit 33 can export the information input port to be verified for inputting information to be verified.
In this embodiment, this information to be verified can include but not limited to any one or a few the combination in password to be verified, finger print information to be verified, shape of face information to be verified, iris information to be verified, retinal information to be verified and voiceprint to be verified.
In this embodiment, this default authorization information can include but not limited to default authentication password, presets checking finger print information, preset checking shape of face information, presets checking iris information, presets checking retinal information and preset any one or a few the combination in checking voiceprint.
In this embodiment, above-mentioned default authorization information can comprise fingerprint string information and input time corresponding to each fingerprint; So correspondingly, authentication unit 35 is verified that whether information to be verified is consistent with default authorization information and can be comprised the following steps:
Authentication unit 35 verifies that whether fingerprint string is identical with the fingerprint string that default authorization information comprises, and whether the difference of the input time of identical fingerprints is all less than preset value, if checking fingerprint string is identical with the fingerprint string that default authorization information comprises, and the difference of the input time of identical fingerprints is all less than preset value, so can verify that information to be verified is consistent with default authorization information; Otherwise, verify information to be verified and default authorization information inconsistent.Wherein, by implementing this execution mode, can prevent disabled user from terminal, opening screening-mode, thus can effectively prevent terminal from wantonly being operated by disabled user.
In the embodiment of the present invention, because external environment there are differences, the intensity of illumination that in the image that terminal collects, zones of different receives may be different, thus the distribution situation of the brightness values in regional is also not quite similar.This imaging region can be divided into several sub-image areas according to the brightness values distribution situation of the image of imaging region display by terminal, thus acquiring unit 301 can obtain the brightness values of each sub-image area.In addition, it also can be that terminal system is given tacit consent to ready-portioned in advance that imaging region is divided into each sub-image area, as imaging region being divided into symmetrical four sub-image areas etc.
Judging unit 302, for for each above-mentioned sub-image area, judges whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value.
In the embodiment of the present invention, for each sub-image area, the brightness values of this sub-image area and the brightness values pre-set can compare by judging unit 302.The brightness values pre-set can be the brightness values needed for camera normal exposure of terminal, it can be a span, the critical value upper limit of this scope is for presetting maximum luminance value, the lower limit of critical value is for presetting minimum light brightness value, now, preset maximum luminance value and default minimum light brightness value unequal; Also can be a concrete value, now, preset minimum light brightness value and be worth equal with default maximum luminance.
In the embodiment of the present invention, default minimum light brightness value and default maximum luminance value can be that user is arranged voluntarily, and user can modify to these two values according to self-demand and/or external environment; Default minimum light brightness value and default maximum luminance value also can be that terminal system is given tacit consent to, and now, user can not modify to it.
Control unit 303, for when above-mentioned judging unit 302 judges that the brightness values of this sub-image area is greater than default maximum luminance value, control photoflash lamp corresponding to this sub-image area to close, wherein, a sub-image area is corresponding with the photoflash lamp of in flash lamp module.
In the embodiment of the present invention, flash lamp module is integrated with in terminal, this flash lamp module comprises at least two photoflash lamps, wherein, a sub-image area can be corresponding with the one or more photoflash lamps in flash lamp module, can pre-set each sub-image area correspondence which or which photoflash lamp.
In the embodiment of the present invention, when the brightness values of this sub-image area is greater than default maximum luminance value, show that this sub-image area brightness values is sufficient, do not need recycling photoflash lamp to carry out light filling, therefore, the photoflash lamp that control unit 303 can control this sub-image area corresponding cuts out.
In the embodiment of the present invention, when the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, control unit 303 also can control photoflash lamp corresponding to this sub-image area and close.
Regulon 304, for when above-mentioned judging unit 302 judges that the brightness values of this sub-image area is less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, and standard exposure value is between default minimum light brightness value and default maximum luminance value.
In the embodiment of the present invention, when the brightness values of this sub-image area is less than default minimum light brightness value, show that the brightness values of this sub-image area can not meet the brightness values needed for camera normal exposure, now, if do not utilize photoflash lamp to carry out light filling, the photo light that this sub-image area then can be made to present is weak, photo presents unintelligible, thus affects photographic quality.When the photoflash lamp utilizing this sub-image area corresponding carries out light filling, the first brightness values according to this sub-image area and the brightness values needed for camera normal exposure is needed to calculate the brightness values of photoflash lamp corresponding to this sub-image area, the risk that flash lighting is not enough or light filling is excessive can be reduced like this, now, the brightness values of photoflash lamp is the brightness values of the actual output of photoflash lamp.
In the embodiment of the present invention, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value by regulon 304, target brightness value is that the difference of the brightness values by calculating this sub-image area and the standard exposure value needed for camera normal exposure obtains, wherein, standard exposure value can be default minimum light brightness value, it can be default maximum luminance value, can also be the median between default minimum light brightness value and default maximum luminance value, also can be an arbitrary value between default minimum light brightness value and default maximum luminance value.Standard exposure value can be terminal system acquiescence, also can be that user is arranged voluntarily.
In terminal shown in Fig. 3, in shooting process, acquiring unit 301 can obtain the brightness values of each sub-image area included by image of the imaging region display of terminal, judging unit 302 can for each sub-image area, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, judge whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, if be greater than default maximum luminance value, control unit 303 controls photoflash lamp corresponding to this sub-image area and closes, if be less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value by regulon 304, this target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, standard exposure value is between default minimum light brightness value and default maximum luminance value.Implement the terminal shown in Fig. 3, can in shooting process, the brightness values of the photoflash lamp that brightness values and the magnitude relationship of default brightness values of each sub-image area included by the image shown by the imaging region of comparison terminal regulate each sub-image area corresponding, thus shooting effect when can improve shooting, and then improve the photographic quality shot, effectively improve user and take experience.
Refer to Fig. 4, Fig. 4 is the structural representation of the another kind of terminal that the embodiment of the present invention provides, for performing the flash lamp control method that the embodiment of the present invention provides.As shown in Figure 4, this terminal can comprise:
Acquiring unit 401, the brightness values of each sub-image area included by the image that the imaging region for obtaining terminal shows.
In the embodiment of the present invention, acquiring unit 401, also for obtain terminal imaging region display image included by each sub-image area brightness values before, obtain the brightness values distributed intelligence of image of the imaging region display of terminal.
Correspondingly, the terminal shown in Fig. 4 can also comprise:
Zoning unit 405, for the brightness values distributed intelligence according to this image, is divided into each sub-image area by this image.
In the embodiment of the present invention, after image has been divided several sub-image areas by zoning unit 405, acquiring unit 401 can obtain the brightness values of each sub-image area.
Judging unit 402, for for each above-mentioned sub-image area, judges whether the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value.
Control unit 403, for when above-mentioned judging unit 402 judges that the brightness values of this sub-image area is greater than default maximum luminance value, control photoflash lamp corresponding to this sub-image area to close, wherein, a sub-image area is corresponding with the photoflash lamp of in flash lamp module.
In the embodiment of the present invention, control unit 403, also for when above-mentioned judging unit 402 judges that the brightness values of this sub-image area is between default minimum light brightness value and default maximum luminance value, controls photoflash lamp corresponding to this sub-image area and closes.
Regulon 404, for when above-mentioned judging unit 402 judges that the brightness values of this sub-image area is less than default minimum light brightness value, the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, target brightness value is the difference between standard exposure value and the brightness values of this sub-image area, and standard exposure value is between default minimum light brightness value and default maximum luminance value.
In the embodiment of the present invention, the mode that the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value is specifically as follows by regulon 404:
Regulon 404 calculates the difference between standard exposure value and the brightness values of sub-image area, and this difference is defined as target brightness value, and the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value, wherein, standard exposure value is between default minimum light brightness value and default maximum luminance value.
As the optional execution mode of one, above-mentioned acquiring unit 401, can also be used for after above-mentioned judging unit 402 judges that the brightness values of this sub-image area is less than default minimum light brightness value, before the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value by above-mentioned regulon 404, obtain the angle of preview image central point corresponding to this sub-image area to the straight line of the preview image central point that the straight line of camera central point is corresponding with this sub-image area photoflash lamp central point corresponding to this sub-image area;
Correspondingly, above-mentioned judging unit 402, can also be used for judging whether this angle is less than default angle;
Above-mentioned regulon 404, can also be used for when above-mentioned judging unit 402 judges that this angle is greater than default angle, the position of the photoflash lamp regulating this sub-image area corresponding, until this angle is less than default angle, wherein, be photoflash lamp corresponding to this sub-image area carries out light filling best angle to this sub-image area when this angle is less than default angle.
In this embodiment, the photoflash lamp that the flash lamp module of terminal comprises is rotatable, and the position of photoflash lamp can be regulated to make it carry out light filling at best orientation to image.
As the optional execution mode of one, above-mentioned acquiring unit 401, can also be used for, after the brightness values of photoflash lamp corresponding for this sub-image area is adjusted to target brightness value by above-mentioned regulon 404, obtaining the color parameter value of this sub-image area;
Correspondingly, above-mentioned regulon 404, can also be used for the color parameter value according to this sub-image area, regulates the color parameter value of photoflash lamp corresponding to this sub-image area and the color parameter value of this sub-image area to match.
In this embodiment, the color parameter value of this sub-image area can be the rgb value of this sub-image area, regulates the color of photoflash lamp corresponding to this sub-image area to mate with this rgb value according to this rgb value.As being 255,0, when 0 when rgb value, show that the color of now this sub-image area is for red, now, the color of the photoflash lamp that this sub-image area can be regulated corresponding is for red; When rgb value is 0,0, when 255, show that the color of now this sub-image area is for blue, now, the color of the photoflash lamp that this sub-image area can be regulated corresponding is for blue.Implement present embodiment, the color of the photoflash lamp that this sub-image area can be regulated corresponding according to the color parameter value of this sub-image area, make photoflash lamp also carry out complementary color while carrying out light filling to image, thus make that the photo color shot is more bright-coloured, photo is more attractive in appearance.
As the optional execution mode of one, the terminal shown in Fig. 4 can also comprise:
Receiving element 41, for receiving the shooting instruction of user's input;
Correspondingly, above-mentioned control unit 403, can also be used for responding this shooting instruction, take under the state of the parameter value of control terminal after the parameter value of photoflash lamp is in adjustment to destination object, and obtains the image taken and obtain.
In this embodiment, shooting instruction can be that certain target button that user clicks in terminal triggers, and also can be that the optional position that user clicks terminal imaging region is triggered.
Implement the terminal shown in Fig. 4, can in shooting process, the brightness values of the photoflash lamp that brightness values and the magnitude relationship of default brightness values of each sub-image area included by the image shown by the imaging region of comparison terminal regulate each sub-image area corresponding; And the position of the photoflash lamp that each sub-image area can be regulated corresponding, be in best light filling position to make photoflash lamp corresponding to each sub-image area; And complementary color is carried out in this region of Color pair of the photoflash lamp regulating each sub-image area corresponding, thus shooting effect when can improve shooting, and then improve the photographic quality shot, effectively improve user and take experience.
Concrete, the terminal introduced in the embodiment of the present invention can implement the part or all of flow process in the flash lamp control method embodiment of composition graphs 1 of the present invention or Fig. 2 introduction.
Module in all embodiments of the present invention or submodule, can pass through universal integrated circuit, such as CPU, or realized by ASIC (Application Specific Integrated Circuit, application-specific integrated circuit (ASIC)).
Step in embodiment of the present invention method can be carried out order according to actual needs and be adjusted, merges and delete.
Unit in embodiment of the present invention terminal can carry out merging, divide and deleting according to actual needs.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random access memory (Random Access Memory is called for short RAM) etc.
A kind of flash lamp control method provided the embodiment of the present invention above and terminal are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a flash lamp control method, is characterized in that, comprising:
Obtain the brightness values of each sub-image area included by image of the imaging region display of terminal;
For sub-image area described in each, judge whether the brightness values of described sub-image area is between default minimum light brightness value and default maximum luminance value;
If the brightness values of described sub-image area is greater than described default maximum luminance value, control photoflash lamp corresponding to described sub-image area and close, wherein, a sub-image area is corresponding with the photoflash lamp of in flash lamp module;
If the brightness values of described sub-image area is less than described default minimum light brightness value, the brightness values of photoflash lamp corresponding for described sub-image area is adjusted to target brightness value, described target brightness value is the difference between the brightness values of standard exposure value and described sub-image area, and described standard exposure value is between described default minimum light brightness value and described default maximum luminance value.
2. method according to claim 1, is characterized in that, before the brightness values of each sub-image area included by image of the imaging region display of described acquisition terminal, described method also comprises:
Obtain the brightness values distributed intelligence of the image of the imaging region display of terminal;
According to the brightness values distributed intelligence of described image, described image is divided into each sub-image area.
3. method according to claim 1, is characterized in that, described method also comprises:
If the brightness values of described sub-image area is between described default minimum light brightness value and described default maximum luminance value, controls photoflash lamp corresponding to described sub-image area and close.
4. the method according to any one of claims 1 to 3, it is characterized in that, after the brightness values of the described sub-image area of described judgement is less than described default minimum light brightness value, and before the described brightness values by photoflash lamp corresponding for described sub-image area is adjusted to target brightness value, described method also comprises:
Obtain the angle of preview image central point corresponding to described sub-image area to the straight line of the preview image central point that the straight line of camera central point is corresponding with the described sub-image area photoflash lamp central point corresponding to described sub-image area;
Judge whether described angle is less than default angle, if not, the position of the photoflash lamp regulating described sub-image area corresponding, until described angle is less than described default angle, wherein, be photoflash lamp corresponding to described sub-image area carries out light filling best angle to described sub-image area when described angle is less than described default angle.
5. method according to claim 1, is characterized in that, after the described brightness values by photoflash lamp corresponding for described sub-image area is adjusted to target brightness value, described method also comprises:
Obtain the color parameter value of described sub-image area;
According to the color parameter value of described sub-image area, the color parameter value of photoflash lamp corresponding to described sub-image area and the color parameter value of described sub-image area is regulated to match.
6. a terminal, is characterized in that, comprising:
Acquiring unit, the brightness values of each sub-image area included by the image that the imaging region for obtaining terminal shows;
Judging unit, for for sub-image area described in each, judges whether the brightness values of described sub-image area is between default minimum light brightness value and default maximum luminance value;
Control unit, for when described judging unit judges that the brightness values of described sub-image area is greater than described default maximum luminance value, control photoflash lamp corresponding to described sub-image area to close, wherein, a sub-image area is corresponding with the photoflash lamp of in flash lamp module;
Regulon, for when described judging unit judges that the brightness values of described sub-image area is less than described default minimum light brightness value, the brightness values of photoflash lamp corresponding for described sub-image area is adjusted to target brightness value, described target brightness value is the difference between the brightness values of standard exposure value and described sub-image area, and described standard exposure value is between described default minimum light brightness value and described default maximum luminance value.
7. terminal according to claim 6, is characterized in that,
Described acquiring unit, also for obtain terminal imaging region display image included by each sub-image area brightness values before, obtain the brightness values distributed intelligence of image of the imaging region display of terminal;
Described terminal also comprises:
Zoning unit, for the brightness values distributed intelligence according to described image, is divided into each sub-image area by described image.
8. terminal according to claim 6, is characterized in that,
Described control unit, time also for judging that when described judging unit the brightness values of described sub-image area is between described default minimum light brightness value and described default maximum luminance value, controlling photoflash lamp corresponding to described sub-image area and closing.
9. the terminal according to any one of claim 6 ~ 8, is characterized in that,
Described acquiring unit, also for after judging that at described judging unit the brightness values of described sub-image area is less than described default minimum light brightness value, before the brightness values of photoflash lamp corresponding for described sub-image area is adjusted to target brightness value by described regulon, obtain the angle of preview image central point corresponding to described sub-image area to the straight line of the preview image central point that the straight line of camera central point is corresponding with the described sub-image area photoflash lamp central point corresponding to described sub-image area;
Described judging unit, also for judging whether described angle is less than default angle;
Described regulon, also for when described judging unit judges that described angle is greater than default angle, the position of the photoflash lamp regulating described sub-image area corresponding, until described angle is less than described default angle, wherein, be photoflash lamp corresponding to described sub-image area carries out light filling best angle to described sub-image area when described angle is less than described default angle.
10. terminal according to claim 6, is characterized in that,
Described acquiring unit, also for after the brightness values of photoflash lamp corresponding for described sub-image area being adjusted to target brightness value when described regulon, obtains the color parameter value of described sub-image area;
Described regulon, also for the color parameter value according to described sub-image area, regulates the color parameter value of photoflash lamp corresponding to described sub-image area and the color parameter value of described sub-image area to match.
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| CN107948539A (en) | 2018-04-20 |
| CN107948539B (en) | 2020-07-17 |
| CN104853110B (en) | 2018-01-23 |
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