CN103369394A - Television set-top box and brightness adjusting method thereof - Google Patents
Television set-top box and brightness adjusting method thereof Download PDFInfo
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- CN103369394A CN103369394A CN2013102587684A CN201310258768A CN103369394A CN 103369394 A CN103369394 A CN 103369394A CN 2013102587684 A CN2013102587684 A CN 2013102587684A CN 201310258768 A CN201310258768 A CN 201310258768A CN 103369394 A CN103369394 A CN 103369394A
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Abstract
The invention relates to a television set-top box and a brightness adjusting method thereof. The brightness adjusting method comprises the steps of controlling a camera of the television set-top box to collect peripheral environment image data of a television; setting an adjustment time and judging whether the time is due compared with the last collection time; then obtaining gray values of the image data; and finally adjusting the brightness of the television set-top box for outputting according to the gray values of the image data. According to the technical scheme disclosed by the invention, the brightness of television pictures can be automatically adjusted according to the environmental brightness, and moreover, additional elements are not used; and meanwhile the product cost is reduced while the user experience is enriched.
Description
Technical field
The invention belongs to TV auxiliary device application, particularly a kind of TV set-top box and luminance regulating method thereof.
Background technology
Watching TV programme is people's one of modal entertainment way in family life.Usually, TV programme media operator send TV signal the time be divided into anolog TV signals and digital television signal.Because digital television signal has larger advantage in definition and stability, therefore, traditional anolog TV signals transmission has the trend that gradually develops to the digital television signal transmission.But, general television set is direct receiving digital television signal usually, therefore, need to come with digital TV set-top box the digital television signal of received television program media operator transmission, and be converted into the anolog TV signals that general television set can be play.
Along with popularizing of digital television signal transmission, the household digital TV set-top box is widely used in the home audio-visual field.Except traditional conversion digital signal function was provided, existing TV set-top box also can be integrated such as parts such as camera, microphones, and the functions such as video interactive are provided for the user.
The user is when watching TV, and the with good grounds environmental light brightness of meeting is adjusted the needs of television image brightness.In general, when environmental light brightness was higher, the user can want the brightness of television image is lightened, and when environmental light brightness was low, the user can want the brightness of television image is turned down.
Provide some automatically to adjust the method for television image brightness according to environmental light brightness in the prior art, but these methods often need to be arranged on extra light sensitive component are set on the television set, cause the user buy television product the cost that spends increase.
Therefore, be necessary to provide a kind of TV set-top box with brightness adjustment function.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of application process of TV auxiliary device, particularly a kind of TV set-top box and luminance regulating method thereof.
The objective of the invention is to be achieved through the following technical solutions:
A kind of TV set-top box luminance regulating method said method comprising the steps of:
Step a. controls the camera collection television set surrounding enviroment view data of described TV set-top box;
Step b. arranges the adjustment time, and whether last collection of judging distance passes through the described adjustment time, through then going to step a, otherwise continues execution in step c;
Step c is obtained the gray value of described view data;
Steps d. according to the gray value of described view data, adjust the brightness output of described TV set-top box.
In technical scheme of the present invention, described step c further comprises:
Step c1. obtains the color-values of described view data;
Step c2. calculates the gray value of described view data according to the color-values of described view data.
In technical scheme of the present invention, the gray value of described view data is calculated by following formula by the red value in the color-values of described view data, green value, blue valve:
Y=0.299*R+0.587*G+0.114*B。
In technical scheme of the present invention, the method for described camera collection television set surrounding enviroment view data is perhaps taken one section video, and is therefrom intercepted some two field pictures for taking piece image.
In technical scheme of the present invention, the described adjustment time is 10 minutes.
In technical scheme of the present invention, described steps d specifically comprises: when described gray value 80 when following, the brightness of adjusting described TV set-top box is output as low-light level; When described gray value 81 to 160 the time, the brightness of adjusting described TV set-top box is output as intermediate light; When described gray value 161 when above, the brightness of adjusting described TV set-top box is output as high brightness.
A kind of TV set-top box, described TV set-top box comprises the brightness adjustment module, described TV set-top box also comprises the image data acquiring module, timing module, color-values acquisition module and gray value computing module, described image data acquiring module is used for controlling the camera collection television set surrounding enviroment view data of described TV set-top box, described timing module is used for arranging the adjustment time, every the described adjustment time, the camera of controlling described TV set-top box gathers described view data again, described color-values acquisition module is used for obtaining the color-values of described view data, described gray value computing module is used for the color-values according to described view data, calculate the gray value of described view data, described brightness adjustment module is used for the gray value according to described view data, adjusts the brightness output of described TV set-top box.
In technical scheme of the present invention, the gray value of described view data is calculated by following formula by the red value in the color-values of described view data, green value, blue valve:
Y=0.299*R+0.587*G+0.114*B。
In technical scheme of the present invention, the described adjustment time is 10 minutes.
In technical scheme of the present invention, the detailed process that described brightness adjustment module is adjusted described TV set-top box brightness output is: when described gray value 80 when following, the brightness of adjusting described TV set-top box is output as low-light level; When described gray value 81 to 160 the time, the brightness of adjusting described TV set-top box is output as intermediate light; When described gray value 161 when above, the brightness of adjusting described TV set-top box is output as high brightness.
Technical scheme of the present invention can make television image brightness automatically adjust according to environmental light brightness, and does not increase extra element, has reduced product cost when having enriched user's experience.
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Description of drawings
Fig. 1 is the flow chart of TV set-top box luminance regulating method of the present invention.
Fig. 2 is the structural representation of TV set-top box of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Design of the present invention is to provide a kind of TV set-top box with brightness adjustment function.Be provided with camera on this TV set-top box, regularly the view data of television set surrounding enviroment is gathered by this camera, analyze again the gray value of institute's acquisition of image data and determine the environmental light brightness value, adjust the brightness output of TV set-top box and then change television image brightness according to above-mentioned environmental light brightness value at last.
See also Fig. 1, TV set-top box luminance regulating method of the present invention mainly may further comprise the steps:
Step S101: the camera collection television set surrounding enviroment view data of control TV set-top box;
The method that camera carries out the surrounding enviroment image data acquiring comprises the shooting piece image, perhaps takes one section video, and therefrom intercepts some two field pictures.
Step S102: adjustment time t is set, and whether the judging distance last time gathers elapsed time t, through then going to step S101, otherwise continues execution in step S103;
Adjust time t every this, controller top box camera gathers the surrounding enviroment view data again.In preferred embodiments of the present invention, this adjustment time, t was set to 10 minutes.After adopting this adjustment time t, can reach the purpose of timing adjustment television image brightness, avoid synchronously frequently brightness to change to the user and watched TV programme to make troubles.
Step S103: color (R, G, the B) value of obtaining the surrounding enviroment view data that gathers;
If only take a photo, then directly obtain the color-values of this image, if multiple image is then got its average color value.The situation of capture video similarly.
Step S104: according to the color-values of above-mentioned surrounding enviroment view data, calculate its gray value;
Adopt floating-point arithmetic when calculating gray value, namely gradation of image value Y is determined by following formula:
Y=0.299*R+0.587*G+0.114*B
Wherein, R is the red value in the color-values, and G is the green value in the color-values, and B is the blue valve in the color-values.
Step S105: according to the gray value of above-mentioned view data, adjust the output brightness of TV set-top box.
Specifically, when gray value 80 when following, judge that environmental light brightness is low, at this moment, the controller top box is adjusted to low-light level with brightness output; When gray value 81 to 160 the time, judge that environmental light brightness is medium, at this moment, the controller top box is adjusted to intermediate light with brightness output; When gray value 161 when above, judge that environmental light brightness be high, at this moment, the controller top box is exported brightness and is adjusted to high brightness.
Like this, can reach and utilize TV set-top box to come purpose according to the brightness of environmental light brightness Self-adjustment television image.
See also Fig. 2, TV set-top box of the present invention mainly comprises image data acquiring module, timing module, color-values acquisition module, gray value computing module and brightness adjustment module.
Wherein, the image data acquiring module is used for control TV set-top box camera collection surrounding enviroment view data.
The method of carrying out the surrounding enviroment image data acquiring comprises the shooting piece image, perhaps takes one section video, and therefrom intercepts some two field pictures.
Timing module is used for arranging adjustment time t, adjusts time t every this, and controller top box camera gathers the surrounding enviroment view data again.In preferred embodiments of the present invention, this adjustment time, t was set to 10 minutes.After adopting this adjustment time t, can reach the purpose of timing adjustment television image brightness, avoid synchronously frequently brightness to change to the user and watched TV programme to make troubles.
The color-values acquisition module is used for obtaining color (R, G, the B) value of the surrounding enviroment view data that gathers.
If only take a photo, then directly obtain the color-values of this image, if multiple image is then got its average color value.The situation of capture video similarly.
The gray value computing module is used for the color-values according to above-mentioned surrounding enviroment view data, calculates its gray value.
Adopt floating-point arithmetic when calculating gray value, namely gradation of image value Y is determined by following formula:
Y=0.299*R+0.587*G+0.114*B
Wherein, R is the red value in the color-values, and G is the green value in the color-values, and B is the blue valve in the color-values.
The brightness adjustment module is used for the gray value according to above-mentioned view data, adjusts the output brightness of TV set-top box.
Specifically, when gray value 80 when following, judge that environmental light brightness is low, at this moment, the controller top box is adjusted to low-light level with brightness output; When gray value 81 to 160 the time, judge that environmental light brightness is medium, at this moment, the controller top box is adjusted to intermediate light with brightness output; When gray value 161 when above, judge that environmental light brightness be high, at this moment, the controller top box is exported brightness and is adjusted to high brightness.
Like this, can reach and utilize TV set-top box to come purpose according to the brightness of environmental light brightness Self-adjustment television image.
Technical scheme of the present invention can make television image brightness automatically adjust according to environmental light brightness, and does not increase extra element, has reduced product cost when having enriched user's experience.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a TV set-top box luminance regulating method is characterized in that, said method comprising the steps of:
Step a. controls the camera collection television set surrounding enviroment view data of described TV set-top box;
Step b. arranges the adjustment time, and whether last collection of judging distance passes through the described adjustment time, through then going to step a, otherwise continues execution in step c;
Step c is obtained the gray value of described view data;
Steps d. according to the gray value of described view data, adjust the brightness output of described TV set-top box.
2. TV set-top box luminance regulating method as claimed in claim 1 is characterized in that, described step c further comprises:
Step c1. obtains the color-values of described view data;
Step c2. calculates the gray value of described view data according to the color-values of described view data.
3. TV set-top box luminance regulating method as claimed in claim 2 is characterized in that, the gray value of described view data is calculated by following formula by the red value in the color-values of described view data, green value, blue valve:
Y=0.299*R+0.587*G+0.114*B。
4. TV set-top box luminance regulating method as claimed in claim 3 is characterized in that, the method for described camera collection television set surrounding enviroment view data is perhaps taken one section video, and therefrom intercepted some two field pictures for taking piece image.
5. TV set-top box luminance regulating method as claimed in claim 3 is characterized in that, the described adjustment time is 10 minutes.
6. such as the described TV set-top box luminance regulating method of claim 1 to 5 any one, it is characterized in that described steps d specifically comprises: when described gray value 80 when following, the brightness of adjusting described TV set-top box is output as low-light level; When described gray value 81 to 160 the time, the brightness of adjusting described TV set-top box is output as intermediate light; When described gray value 161 when above, the brightness of adjusting described TV set-top box is output as high brightness.
7. TV set-top box, described TV set-top box comprises the brightness adjustment module, it is characterized in that, described TV set-top box also comprises the image data acquiring module, timing module, color-values acquisition module and gray value computing module, described image data acquiring module is used for controlling the camera collection television set surrounding enviroment view data of described TV set-top box, described timing module is used for arranging the adjustment time, every the described adjustment time, the camera of controlling described TV set-top box gathers described view data again, described color-values acquisition module is used for obtaining the color-values of described view data, described gray value computing module is used for the color-values according to described view data, calculate the gray value of described view data, described brightness adjustment module is used for the gray value according to described view data, adjusts the brightness output of described TV set-top box.
8. TV set-top box as claimed in claim 7 is characterized in that, the gray value of described view data is calculated by following formula by the red value in the color-values of described view data, green value, blue valve:
Y=0.299*R+0.587*G+0.114*B。
9. TV set-top box as claimed in claim 8 is characterized in that, the described adjustment time is 10 minutes.
10. such as the described TV set-top box of claim 6 to 9 any one, it is characterized in that, the detailed process that described brightness adjustment module is adjusted described TV set-top box brightness output is: when described gray value 80 when following, the brightness of adjusting described TV set-top box is output as low-light level; When described gray value 81 to 160 the time, the brightness of adjusting described TV set-top box is output as intermediate light; When described gray value 161 when above, the brightness of adjusting described TV set-top box is output as high brightness.
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| CN104038839A (en) * | 2014-04-29 | 2014-09-10 | 四川长虹电器股份有限公司 | TV (television) image quality adjustment method |
| CN107067842A (en) * | 2017-06-05 | 2017-08-18 | 努比亚技术有限公司 | Colour method of adjustment, mobile terminal and storage medium |
| CN107222685A (en) * | 2016-03-21 | 2017-09-29 | 钰立微电子股份有限公司 | Image acquisition device and operation method thereof |
| WO2019028788A1 (en) * | 2017-08-10 | 2019-02-14 | 深圳益创信息科技有限公司 | Smart playback method and smart television |
| CN110648645A (en) * | 2019-09-27 | 2020-01-03 | 北京小米移动软件有限公司 | Control method, device and control system for electronic equipment with screen |
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| WO2019028788A1 (en) * | 2017-08-10 | 2019-02-14 | 深圳益创信息科技有限公司 | Smart playback method and smart television |
| CN110648645A (en) * | 2019-09-27 | 2020-01-03 | 北京小米移动软件有限公司 | Control method, device and control system for electronic equipment with screen |
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Application publication date: 20131023 |