PHOTOGRAPHIC METHOD AND SYSTEM FOR SMART TELEVISION

Description

TECHNICAL FIELD

[0001] The present invention relates to photographing method by smart television, comprising: acquiring a picture of an environment captured by a camera of a smart television, when the smart television is photographing; determining a brightness value of current environment of the smart television, based on the picture of the environment. The invention further relates to a photographing system of an environment captured by a camera of a smart television, when the smart television is photographing; and a determining module (20), configured to determine a brightness value of current environment of the smart television, based on the picture of the environment.BACKGROUND

[0002] Such a method and such a system are known from US 2009 / 0322889 A1.

[0003] Currently, there has been increasing functions on smart televisions. Users can be photographed or be videoed, for example, through a built-in or an external camera of a smart television, which brings the smart television of greater importance in daily life. Accordingly, the smart television with a better photographing function may possibly be more attractive to the users.

[0004] However, flash fails to work in the camera of the smart television at present. Thus, other light sources, such as light of a lamp, should be provided to ensure a clear photo, once the smart television is placed in a dark environment. If brightness of other light sources is not sufficient, an unclear photo may be produced by the camera of the smart television.

[0005] The method known from US 2009 / 0322889 A1 includes capturing a video image using the video communication device, determining video image quality factor values based on the captured video image, determining if the video image quality factor values exceed at least one threshold value.

[0006] US 2012 0026378 A1 teaches a method for detecting and showing quality of a preview or stored picture in an electronic imaging device, which comprises the steps of determining whether the electronic imaging device is operated in a preview mode or a file mode; detecting at least four features of the preview or stored picture; determining whether each of the features of the preview or stored picture is normal or not; and displaying the preview or stored picture and at least one of four graphical indicators on a LCD screen of the electronic imaging device when it is determined that the feature corresponding to the graphical indicator is not in a normal status.

[0007] US 2007 / 0216958 A1 provides an image pick-up apparatus having a function of setting an exposure correction value, which may include a control portion and a display portion. The control portion performs control for generating or acquiring reference images having a plurality of images having a plurality of different exposure correction values applied thereto. The display portion displays the reference images in accordance with the control made by the control portion. The control portion executes processing for receiving as its input selection information selected by a user for the reference images displayed on the display portion, and setting the exposure correction value corresponding to the reference image selected by the user as an exposure correction value to be applied to a photographed image.

[0008] The system taught in US 2015 / 0002735 A1 is configured to use the device's own display to provide an illumination source for front-facing image sensors and to a method of using the same. An electronic device for capturing a digital image using a front-facing image sensor and a digital display device includes a command input module configured to receive a command to capture the digital image, an illumination adjustment module configured to adjust the display device to an imaging illumination condition in response to the command, and a front-facing image sensor module configured to capture the digital image using the front-facing image sensor under the predetermined illumination condition.SUMMARY

[0009] The present disclosure intends to provide a photographing method by a smart television and a system thereof, attempting to solve the problems that the camera of the smart television fails to flash and no clear photos can be taken in the dark environment.

[0010] To solve this problem, the present invention provides a photographing method by smart television as defined in claim 1.

[0011] To solve this problem, the present invention provides a photographing system of smart television as defined in claim 6.

[0012] The smart television of the present disclosure takes photos by acquiring the picture of the environment captured by the camera of the smart television, when the smart television is photographing; determining the brightness value of current environment of the smart television, based on the picture of the environment; gradually increasing screen brightness of the smart television and showing the preview image of the picture at different screen brightness, when the brightness value of the environment is less than the preset value; and adjusting the screen brightness to the required screen brightness selected by the user, for the user to photograph, after a required screen brightness is selected by the user according to the preview image of the picture. The smart television would acquire the current brightness value of the environment during the photographing process. If the brightness value of the environment is less than the preset value, indicating that the smart television is photographing at a dark environment. The user would be clearly photographed through adjusting the screen brightness to the required screen brightness selected by the user, based on the brightness of the current environment. Thus, even if the smart television is in a dark environment, the camera of the smart television could still take clear photos by means of the brightness of the smart television.BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Fig. 1 shows a schematic flow diagram in a first exemplary embodiment of the photographing method by smart television in the present disclosure; Fig. 2 shows a schematic flow diagram in a second exemplary embodiment of the photographing method by smart television in the present disclosure; Fig. 3 shows a schematic flow diagram in a third exemplary embodiment of the photographing method by smart television in the present disclosure; Fig. 4 shows a schematic flow diagram with detailed steps of S20 in the first exemplary embodiment shown in Fig. 1; Fig. 5 shows a schematic flow diagram with detailed steps of S40 in the first exemplary embodiment shown in Fig. 1; Fig. 6 shows a schematic diagram of functional modules in the first exemplary embodiment of the photographing system of smart television in the present disclosure; Fig. 7 shows a schematic diagram of functional modules in the second exemplary embodiment of the photographing system of smart television in the present disclosure; Fig. 8 shows a schematic diagram of functional modules in the third exemplary embodiment of photographing system of smart television in the present disclosure; Fig. 9 shows a schematic diagram of detailed functional modules of the determining modules in the fourth exemplary embodiment of the photographing system of smart television in the present disclosure; Fig. 10 shows a schematic diagram of detailed functional modules of the first adjusting modules in the fifth exemplary embodiment of the photographing system of smart television in the present disclosure.

[0014] Further description would be provided with the implementation, functional features and advantages of the present disclosure, with the exemplary embodiments combined and accompanying drawings referred to.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] It is understood that the specific embodiments described herein are merely illustrative of the present disclosure but not for limitation.

[0016] Given to the above-mentioned problems, the present disclosure provides a photographing method of smart television.

[0017] Referring to Fig. 1, Fig. 1 shows a flow diagram in a first exemplary embodiment of the photographing method by smart television in the present disclosure.

[0018] In the first exemplary embodiment, the photographing method by the smart television includes: step S10, acquiring a picture of an environment captured by a camera of the smart television, when the smart television is photographing; step S20, determining a brightness value of current environment of the smart television, based on the picture of the environment.

[0019] In the present exemplary embodiment, when it is detected that the user opens an APP on the smart television for photographing, the picture of the current environment would be captured by the camera linked with the smart television, and the picture of the current environment would be displayed on a viewfinder interface. When the user presses a camera key and the photographing process is detected, and the picture of the environment captured by the camera of the smart television would be acquired, and the brightness value of current environment of the smart television is determined, based on the brightness value corresponding to the picture of the environment. The picture of the environment acquired could be a full picture of the environment in the viewfinder interface of the smart television, or it could also be a portion thereof. The brightness range of the current environment of the smart television is [0, 255].

[0020] Step 30, gradually increasing screen brightness of the smart television and displaying a preview image of the picture at different screen brightness, when the brightness value of the current environment is less than the preset value.

[0021] When determining the brightness value of current environment of the smart television, the brightness value of the current environment is compared with the preset value, and it is determined if the brightness value of the current environment is less than the preset value. If the brightness value of the current environment is less than the preset value, parameters regarding the screen brightness of the smart television would be adjusted according to the brightness value of the current environment, to gradually increase the screen brightness of the smart television. In the meanwhile, the preview image of the picture would be displayed at the adjusted screen brightness. The parameters regarding the screen brightness may include a backlight value, a brightness value and a contrast ratio. For example, the captured brightness value of the current environment of the smart television is Lt, and the preset value of the smart television is L0. Lt is compared with L0. If Lt is less than L0, parameters regarding the screen brightness of the smart television would be adjusted according to Lt, and the screen brightness of the smart television would be gradually increased. And the preview image of the picture would also be displayed at the adjusted screen brightness. The range of the preset value is [65, 75].

[0022] Step S40, adjusting the screen brightness is adjusted to the required screen brightness selected by the user, for the user to photograph, after a required screen brightness is selected by the user according to the preview image of the picture.

[0023] After the user press the camera key on the APP with the photographing function, each preview image of the picture captured by the camera is shown on the display interface of the smart television. The user is also indicated if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for further photographing. For example, when the user clicks some preview image of the picture, a question that "if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for photographing" would be popped up. The user's selection would be accepted, so that the screen brightness required for further photographing could be rapidly confirmed. Or when the user quits browsing the preview image of the picture, the question that "if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for photographing" would be popped up. And the user's selection would be accepted. Or the user would be indicated of the question at the end of browsing the preview image of the picture, and the user's selection would be accepted. After a required screen brightness is selected by the user according to the preview image of the picture, the screen brightness is adjusted to the selected screen brightness, for the user to photograph. Flash is performed simultaneously on the display of the smart television when the camera is photographing. When photographing has been completed by the camera, the screen brightness of the smart television has been restored to the screen brightness selected by the user.

[0024] It has to be noted that if "no" is selected regarding the question "if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for photographing", when the user clicks some preview image of the picture. Current preview image of the picture would be quit and the user may continue browsing each preview image of the picture.

[0025] The smart television of the present exemplary embodiment takes photos by acquiring the picture of the environment captured by the camera of the smart television, when the smart television is photographing, determining the brightness value of current environment of the smart television, based on the picture of the environment, gradually increasing screen brightness of the smart television and showing a preview image of the picture at different screen brightness, when the brightness value of the environment is less than the preset value; and adjusting the screen brightness to the required screen brightness selected by the user, for the user to photograph, after a required screen brightness is selected by the user according to the preview image of the picture. The smart television would acquire the current brightness value of the environment during the photographing process. If the brightness value of the environment is less than the preset value, indicating a dark environment during photographing by the smart television. The user would be clearly photographed through adjusting the screen brightness to the required screen brightness selected by the user, based on the brightness of the current environment. Thus, even if the user is in a dark environment, the camera of the smart television could still take clear photos by aids of the brightness of the smart television.

[0026] Further, based on the first exemplary embodiment, the schematic flow diagram in a second exemplary embodiment is provided of the photographing method by the smart television in the present disclosure, referring to Fig. 2. In the second exemplary embodiment, the photographing method by the smart television after S20 includes: step S50, saving a current screen brightness for restoring the screen brightness of the smart television to the current screen brightness after photographing is completed, when the brightness value of current environment is less than the preset value.

[0027] If the brightness value of the current environment of the smart television is less than the preset value, indicating dark environment brightness for photographing, and thus clear photos could not be photographed by the camera of the smart television. The screen brightness is necessarily adjusted to the required screen brightness selected by the user, and the current screen brightness of the smart television is saved. Flash is performed simultaneously on the display of the smart television when the camera is photographing with the required screen brightness. When photographing has been completed by the camera, the screen brightness of the smart television has been restored to the current screen brightness of the smart television just saved. Thus, other operations, such as displaying pictures, is performed under the current screen brightness of the smart television just saved. For example, if the brightness value of the current environment is Lt1 (Lt1=60), which is less than the preset value L0 (L0=70), Lt2 would be saved and Lt2 would be adjusted to the required screen brightness selected by the user, which is Lt3 (Lt3=80). Flash is performed simultaneously on the display of the smart television when the camera is photographing at the brightness of Lt3. When photographing has been completed by the camera, the screen brightness Lt3 has been restored to Lt2.

[0028] It could be understandable that the darker of the current environment of the smart television, the smaller of the brightness value of the current environment of the smart television, the larger of the required screen brightness value. And the brighter of the current environment of the smart television, the larger of the brightness value of the current environment of the smart television, the smaller of the required screen brightness value.

[0029] The present exemplary embodiment, when the brightness value of current environment is less than the preset value, avoids the screen from possibility of aging under a high brightness condition for a long time, by means of saving the brightness value of current environment, and of adjusting the screen brightness of the smart television to the current screen brightness after photographing is completed.

[0030] Further, based on the first exemplary embodiment, the schematic flow diagram in a third exemplary embodiment is provided of the photographing method by the smart television in the present disclosure, referring to Fig. 3. In the third exemplary embodiment, the photographing method by the smart television after S20 includes: step S60, indicating the user directly to be photographed, when the brightness value of current environment is not less than the preset value.

[0031] In the exemplary embodiment, when the brightness value of current environment is not less than the preset value, indicating high brightness of the environment of the smart television. Thus, it is not necessary to adjust the screen brightness of the smart television, and the user could be directly indicated to be photographed. For example, a question of "if a photo would like to be taken" would be popped up and the user's selection would be accepted.

[0032] The present exemplary embodiment indicates a user directly to be photographed, when the brightness value of the environment is not less than the preset value. Thus, as the brightness value of the environment is less than the preset value, the screen brightness needs to be adjusted to the required screen brightness before indicating the user. If the brightness value of the environment is not less than the preset value, the user would be directly indicated to be photographed. The photographing mode is dynamically adjusted and changed with the brightness of the current environment. The user's requirement is fulfilled on environment brightness for camera of the smart television during photographing, and the user experience is thus improved.

[0033] Further, Fig. 4 is referred to, which shows a schematic flow diagram with detailed steps of S20 showing the first exemplary embodiment. The detailed steps of S20 includes: step S21, acquiring a brightness value of each pixel in the picture of the environment; step S22, taking an average of the acquired brightness value of each pixel in the picture of the environment as the brightness value of the environment.

[0034] In the present exemplary embodiment, the picture of environment is screenshot, displayed on the current viewfinder interface of the smart television and a brightness value of each pixel in the picture of the environment is acquired, during photographing by the smart television. Since the brightness value of each pixel in the picture of the environment is directly output by the camera (a photosensitive element), which is image data without any processing, the brightness value of each pixel in the picture of the environment could be named as raw data. All the raw data of the picture of the environment are counted when acquired, or part of the raw data is selected deliberately and this part of the raw data are accumulated and averaged. The average value is taken as the brightness of the current environment of the smart television.

[0035] The present exemplary embodiment enables calculation more precisely for the brightness of the current environment, by means of acquiring a brightness value of each pixel in the picture of the environment, and taking an average of the acquired brightness value of each pixel in the picture of the environment as brightness value of the environment.

[0036] Further, Fig. 5 is referred to, which shows a schematic flow diagram with detailed steps of S40 showing the first exemplary embodiment. The detailed steps of S40 includes: step S41, switching the display interface of the screen of the smart television into the full white screen, and setting brightness of the full white screen as the required screen brightness selected by the user; step S42, indicating the user, after the screen brightness becomes the required screen brightness selected by the user.

[0037] In the present exemplary embodiment, the display interface of the screen of the smart television is switched into the full white screen in the time of the camera photographing based on the required screen brightness, in order to increase the brightness of the display and to enable the camera to photograph under the full white screen. During photographing, flash is performed on the display of the smart television based on the full white screen. R value, G value and B value of each pixel in the full white screen being 255 for each.

[0038] The present exemplary embodiment indicates the user, by means of switching the display interface of the screen of the smart television into the full white screen, and setting brightness of the full white screen as the required screen brightness selected by the user. As the display interface of the screen of the smart television is switched into the full white screen, enabling the luminescence efficiency to be the highest without the environment color being changed. Even if the smart television is placed at a relatively dark environment, the user can still be photographed clearly via the smart television.

[0039] The present disclosure further provides the photographing system of smart television.

[0040] Referring to Fig. 6, showing a schematic diagram of the functional modules in the first exemplary embodiment of the photographing system of smart television in the present disclosure.

[0041] In the first exemplary embodiment, the photographing system of smart television includes: the acquiring module 10, the determining module 20, the displaying module 30 and the first adjusting module 40.

[0042] The acquiring module 10, acquires a picture of an environment captured by the camera of the smart television, when the smart television is photographing.

[0043] The determining module 20, determines the brightness value of current environment of the smart television, based on the picture of the environment.

[0044] In the present exemplary embodiment, when it is detected that the user opens an APP on the smart television for photographing, the current picture of the environment would be captured by the camera linked with the smart television, which is then displayed on a viewfinder interface. When the user presses camera key and the photographing process is detected, the acquiring module 10 acquires the picture of the environment captured by the camera of the smart TV. And the determining module 20 determines the brightness value of current environment of the smart television, based on the brightness value corresponding to the picture of the environment. The picture of the environment acquired by the acquiring module 10 could be a full picture of the environment in the viewfinder interface of the smart television, or it could also be a portion thereof. The brightness range of the current environment of the smart television is [0, 255].

[0045] The displaying module 30, gradually increases screen brightness of the smart television and displays a preview image of the picture at different screen brightness, when the current brightness value of the environment is less than a preset value.

[0046] When the determining module 20 determines the brightness value of current environment of the smart television, the indicating module 30 compares the current brightness value of the environment with the preset value, determining if the brightness value of the current environment is less than the preset value. If the brightness value of the current environment is less than the preset value, parameters regarding the screen brightness of the smart television would be adjusted according to the current brightness value of the environment, to gradually increase the screen brightness of the smart television. In the meanwhile, the preview image of the picture would be displayed at the adjusted screen brightness. The parameters regarding the screen brightness may include a backlight value, a brightness value and a contrast ratio. For example, the captured brightness value of the current environment of the smart television is Lt, and the preset value of the smart television is L0. Lt is compared with L0. If Lt is less than L0, parameters regarding the screen brightness of the smart television would be adjusted according to Lt, and the screen brightness of the smart television would be gradually increased. And the preview image of the picture would also be shown at the adjusted screen brightness. The range of the preset value is [65, 75].

[0047] The first adjusting module 40, adjusts the screen brightness to the required screen brightness selected by the user, for the user to photograph, after a required screen brightness is selected by the user according to the preview image of the picture.

[0048] After the user press the camera key on the APP for photographing, the displaying module 30 displays each preview image of the picture captured by the camera on the display interface of the smart television. In the meanwhile, the user is indicated if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for further photographing. For example, when the user clicks some preview image of the picture, a question that "if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for photographing" would be popped up. And the user's selection would be accepted, so that the screen brightness required for further photographing could be rapidly confirmed. Or when the user quits browsing the preview image of the picture, the question that "if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for photographing" would be popped up. And the user's selection would be accepted. Or users would be indicated of the question at the end of browsing the preview image of the picture, and the user's selection would be accepted. After a required screen brightness is selected by the user according to the preview image of the picture, the first adjusting module 40 adjusts the screen brightness to the selected screen brightness, for the user to photograph. Flash is performed simultaneously on the display of the smart television when the camera is photographing. When photographing is completed by the camera, the screen brightness of the smart television would be restored to the screen brightness selected by the user.

[0049] It has to be noted that if "no" is selected regarding the question "if the screen brightness corresponding to the preview image of the picture is set as the screen brightness that would be required for photographing", when the user clicks some preview image of the picture. Current preview image of the picture would be quit and the user may continue browsing each preview image of the picture.

[0050] The smart television of the present exemplary embodiment takes photos by acquiring the picture of the environment captured by the camera of the smart television, when the smart television is photographing, determining the current brightness value of environment of the smart television, based on the picture of the environment, gradually increasing screen brightness of the smart television and showing a preview image of the picture at different screen brightness, when the current brightness value of the environment is less than the preset value; and adjusting the screen brightness to the required screen brightness selected by the user, for the user to photograph, after a required screen brightness is selected by the user according to the preview image of the picture. The smart television would acquire the current brightness value of the environment during the photographing process. If the current brightness value of the environment is less than the preset value, indicating a dark environment for photographing by the smart television. The user would be clearly photographed through adjusting the screen brightness to the required screen brightness selected by the user, based on the brightness of the current environment. Thus, even if the user is in a dark environment, the camera of the smart television could still take clear photos by aids of the brightness of the smart television.

[0051] Further, given to the first exemplary embodiment mentioned above, the second exemplary embodiment of the photographing system of smart television is provided. In the second exemplary embodiment of the photographing system of smart television, Fig. 7 is referred to. The photographing system of smart television further includes: the second adjusting module 50.

[0052] The second adjusting module 50, saves the brightness value of current environment when the brightness value of current environment is less than the preset value, in order to adjust the screen brightness of the smart television to the current screen brightness after photographing is completed.

[0053] If the second adjusting module 50 determines that the brightness value of the current environment of the smart television is less than the preset value in the smart television, indicating dark environment brightness for photographing, and thus clear photos could not be photographed by the camera of the smart television. The screen brightness is necessarily adjusted to the required screen brightness selected by the user, and the current screen brightness of the smart television is saved. Flash is performed simultaneously on the display of the smart television when the camera is photographing with the required screen brightness. When photographing is completed by the camera, the screen brightness of the smart television would be restored to the current screen brightness of the smart television just saved. Thus, other operations, such as displaying pictures, is performed under the current screen brightness of the smart television just saved. For example, if the brightness value of the current environment is Lt1 (Lt1=60), which is less than the preset value L0 (L0=70), Lt2 would be saved and Lt2 would be adjusted to the required screen brightness selected by the user, which is Lt3 (Lt3=80). Flash is performed simultaneously on the display of the smart television when the camera is photographing at the brightness of Lt3. When photographing has been completed by the camera, the screen brightness Lt3 has been restored to Lt2.

[0054] It could be understandable that the darker of the current environment of the smart television, the smaller of the brightness value of the current environment of the smart television, the larger of the required screen brightness value. And the brighter of the current environment of the smart television, the larger of the brightness value of the current environment of the smart television, the smaller of the required screen brightness value.

[0055] The present exemplary embodiment, when the brightness value of current environment is less than the preset value, avoids the screen from possibility of aging under a high brightness condition for a long time, by means of saving the current brightness value of environment, and adjusting the screen brightness of the smart television to the current brightness of environment after photographing is completed.

[0056] Further, given to the first exemplary embodiment mentioned above, the third exemplary embodiment of the photographing system of smart television is provided. In the third exemplary embodiment of the photographing system of smart television, Fig. 8 is referred to. The photographing system of smart television further includes: the indicating module 60.

[0057] The indicating module 60, indicates a user, when the brightness value of the environment is not less than the preset value.

[0058] In the third exemplary embodiment, when the brightness value of current environment is not less than the preset value, indicating high brightness of the environment of the smart television. Thus, it is not necessary to adjust the screen brightness of the smart television, and the indicating module 60 indicates directly the user. For example, a question of "if a photo would like to be taken" could be popped up and the user's selection would be accepted.

[0059] The present exemplary embodiment indicates a user directly to be photographed, when the brightness value of the environment is not less than the preset value. Thus, as the brightness value of the environment is less than the preset value, the screen brightness needs to be adjusted to the required screen brightness before indicating the user. If the brightness value of the environment is not less than the preset value, the user would be directly indicated to be photographed. The photographing mode is dynamically adjusted and changed with the brightness of the current environment. The user's requirement is fulfilled on environment brightness for camera of the smart television during photographing, and the user experience is thus improved.

[0060] Further, given to the first exemplary embodiment mentioned above, the fourth exemplary embodiment of the photographing system of smart television is provided. In the fourth exemplary embodiment of the photographing system of smart television, Fig. 9 is referred to. The determining module further includes: the acquiring unit 21 and the determining unit 22.

[0061] The acquiring unit 21, is configured to acquire brightness of each pixel in the picture of the environment.

[0062] The determining unit 22, takes an average of the acquired brightness value of each pixel in the picture of the environment as the brightness value of the environment.

[0063] In the fourth exemplary embodiment, the picture of environment is screenshot displayed on the current viewfinder interface of the smart television, and the acquiring unit 21 acquires a brightness value of each pixel in the picture of the environment, when photographing is performed by the smart television. Since the brightness value of each pixel in the picture of the environment is directly output by the camera (a photosensitive element), which is image data without any processing, the brightness value of each pixel in the picture of the environment could be named as raw data. All the raw data of the picture of the environment are counted when acquired, or part of the raw data is selected deliberately and the determining unit 22 accumulates this part of the raw data and average the accumulated raw data. The average value is taken as the brightness of the current environment of the smart television.

[0064] The present exemplary embodiment enables calculation more precisely for the brightness of the current environment, by means of acquiring a brightness value of each pixel in the picture of the environment, and taking an average of the acquired brightness value of each pixel in the picture of the environment as brightness value of the environment.

[0065] Further, given to any exemplary embodiment mentioned above, the fifth exemplary embodiment of the photographing system of smart television is provided. In the fifth exemplary embodiment of the photographing system of smart television, Fig. 10 is referred to. The first adjusting module includes: the switching unit 41 and the indicating unit 42.

[0066] The switching unit 41, is configured to switch the display interface of the screen of the smart television into the full white screen, and to set brightness of the full white screen as the required screen brightness selected by the user.

[0067] The indicating unit 42, is configured to indicate the user, when the screen brightness becomes the required screen brightness selected by the user.

[0068] In the fifth exemplary embodiment, the switching unit 41 switches the display interface of the screen of the smart television into the full white screen in the time of the camera photographing based on the required screen brightness, in order to increase the brightness of the display. The indicating unit 42 indicates the users to be photographed and enables the camera to photograph under the full white screen. During photographing, flash is performed on the display of the smart television based on the full white screen. R value, G value and B value of each pixel in the full white screen are 255 for each.

[0069] The fifth exemplary embodiment indicates the user, by means of switching the display interface of the screen of the smart television into the full white screen, and setting brightness of the full white screen as the required screen brightness selected by the user. As the display interface of the screen of the smart television is switched into the full white screen, enabling the luminescence efficiency to be the highest. Moreover, without changing the environment color. Even if the smart television is placed at a relatively dark environment, the user can still be photographed clearly via the smart television.

Claims

1. A photographing method by a smart television comprising: performing a photographing process by the smart television, when it is detected that a user opens an APP on the smart television for photographing and presses a camera key on the APP, to (S10) acquire a picture of a current environment captured by a camera of the smart television; (S20) determining a brightness value of the current environment of the smart television, based on the picture of the current environment, and characterized in that, the method further comprises: when it is determined that the brightness value of the current environment is less than a preset value: (S50) saving current screen brightness of the smart television and displaying (S30) preview images of the picture captured by the camera at different screen brightnesses, wherein the different screen brightnesses are gradually increased by adjusting parameters regarding screen brightness of the smart television; (S40) adjusting, by browsing the preview images and selecting one of the preview images, the screen brightness of the smart television to selected screen brightness corresponding to the one of the preview images selected by the user for the user to photograph; and performing another photographing process, different from the photographing process, by the camera of the smart television by simultaneously using a flash performed by displaying a full white screen at the selected screen brightness on a display of the smart television when the camera is photographing; and restoring the screen brightness of the smart television from the selected screen brightness to the saved current screen brightness; when it is determined that the brightness value of the current environment is not less than the preset value: (S60) indicating the user that a photo can directly be taken.

2. The method of claim 1, wherein the step of adjusting the screen brightness of the smart television to the selected screen brightness corresponding to the one of the preview images, for the user to photograph, comprises: switching a display interface of a screen of the smart television into the full white screen, and setting brightness of the full white screen as the selected screen brightness selected by the user; and indicating the user, when the screen brightness becomes the selected screen brightness.

3. The method of claim 1, wherein the step of adjusting the screen brightness of the smart television to the selected screen brightness corresponding to the one of the preview images, for the user to photograph, comprises: switching a display interface of a screen of the smart television into the full white screen, and setting brightness of the full white screen as the selected screen brightness selected by the user; and indicating the user, when the screen brightness becomes the selected screen brightness.

4. The method of claim 1, wherein the step of determining the brightness of the current environment of the smart television, based on the picture of the current environment, comprises: acquiring brightness values of respective pixels in the picture of the current environment; and taking an average of the acquired brightness values of respective pixels in the picture of the current environment as the brightness value of the current environment.

5. The method of claim 4, wherein the step of adjusting the screen brightness of the smart television to the selected screen brightness corresponding to the one of the preview images, for the user to photograph, comprises: switching a display interface of a screen of the smart television into the full white screen, and setting brightness of the full white screen as the selected screen brightness selected by the user; and indicating the user, when the screen brightness becomes the selected screen brightness.

6. A photographing system of a smart television, comprising: an acquiring module (10), configured to acquire a picture of a current environment captured by a camera of a smart television, when a photographing process is performed by the smart television in response that it is detected that a user opens an APP on the smart television for photographing and presses a camera key on the APP; a determining module (20), configured to determine a brightness value of the current environment of the smart television, based on the picture of the current environment; characterized in that: when it is determined that the brightness value of the current environment is less than a preset value: a displaying module (30), configured to display preview images of the picture captured by the camera at different screen brightnesses, wherein the different screen brightnesses are gradually increased by adjusting parameters regarding screen brightness of the smart television; a second adjusting module (50), configured to save current screen brightness of the smart television; and a first adjusting module (40), configured to adjust, by browsing the preview images and selecting one of the preview images, the screen brightness of the smart television to selected screen brightness corresponding to the one of the preview images selected by the user for the user to photograph, wherein another photographing process, different from the photographing process, is performed by the camera of the smart television simultaneously by using a flash performed by displaying a full white screen at the selected screen brightness on a display of the smart television when the camera is photographing and the screen brightness of the smart television is restored from the selected screen brightness to the saved current screen brightness when it is determined that the brightness value of the current environment is not less than the preset value: an indicating module (60), configured to indicate the user that a photo can directly be taken.

7. The photographing system of claim 6, wherein the first adjusting module (40) comprises: a switching unit (41), configured to switch a display interface of a screen of the smart television into the full white screen, and to set brightness of the full white screen as the selected screen brightness selected by the user; and an indicating unit (42), configured to indicate the user, when the screen brightness becomes the selected screen brightness.

8. The photographing system of claim 6, wherein the first adjusting module (40) comprises: a switching unit (41), configured to switch a display interface of a screen of the smart television into the full white screen, and to set brightness of the full white screen as the selected screen brightness selected by the user; and an indicating unit (42), configured to indicate the user, when the screen brightness becomes the selected screen brightness.

9. The photographing system of claim 6, wherein the determining module (20) further comprises: an acquiring unit (21), configured to acquire brightness values of respective pixels in the picture of the current environment; and a determining unit (22), configured to take an average of the acquired brightness values of respective pixels in the picture of the current environment as the brightness value of the current environment.

10. The photographing system of claim 9, wherein the first adjusting module (40) comprises: a switching unit (41), configured to switch a display interface of a screen of the smart television into the full white screen, and to set brightness of the full white screen as the selected screen brightness selected by the user; and an indicating unit (42), configured to indicate the user, when the screen brightness becomes the selected screen brightness.