CN104954844A - User position based image adjusting method and device as well as television system - Google Patents

Abstract

The invention discloses a user position based image adjusting method. The user position based image adjusting method comprises the following steps: a light sensation sampling value of the user position and a light sensation sampling value of a television end are acquired, whether the absolute value of the difference of the two light sensation sampling values exceeds a preset light sensation threshold is judged, and if the absolute value exceeds the preset light sensation threshold, images are adjusted, so that influence on the watching effect of the user due to overlarge luminance difference between the user position and the television end can be reduced. The invention further discloses a user position based image adjusting device and a television system. According to the user position based image adjusting method and device as well as the television system, the influence of the environment luminance of the user position on the watching effect is taken into consideration, the environment luminance of the user position is acquired, so that comparison of the environment luminance of the user position and the environment luminance of the television end can be performed at the television end, the image display effect of the television end can be adjusted dynamically, and the watching effect and the use experience of the user are improved.

Description

Based on the image adjusting method of customer location, device and television system

Technical field

The present invention relates to television terminal technical field, particularly relate to based on the image adjusting method of customer location, device and the television system with this device.

Background technology

In prior art, normally regulate television image according to TV place surround lighting, to realize the harmony of television image and surround lighting, improve viewing effect.In prior art, light sensitive device is installed on a television set, what light sensitive device detected is only surround lighting corresponding to television set position, owing to there being certain viewing distance between user and television set, people is also moveable, and make indoor light and non-fully is equally distributed due to reasons such as window, indoor shielding things, likely TV is in dark place, people is but in bright place, or TV is in bright place, and people is in dark place, the surround lighting that therefore actual environment light and described light sensitive device detect just has larger difference.

Such as winter, user wanted that opening curtain gets sun, watch TV programme simultaneously, now user is in bright place and TV is in dark place, if the surround lighting coefficient detected by the light sensitive device on TV goes the words adjusting picture display parameters (such as backlight, contrast etc.), what television image will be caused to become is very dark, user is when bright place's viewing dark scene TV, Chu will do not seen, this have impact on the viewing effect of user greatly, therefore in prior art, utilize the television environment light detected to regulate television image, be difficult to the viewing effect effectively improving user.

Summary of the invention

Of the present inventionly mainly provide a kind of image adjusting method based on customer location, device and television system, be intended to solve and utilize the television environment light detected to regulate television image, be difficult to the technical problem of the viewing effect effectively improving user.

For achieving the above object, the invention provides a kind of image adjusting method based on customer location, described image adjusting method comprises:

S1, the acquisition light sensation sampled value of user position and the light sensation sampled value of television;

Whether S2, the absolute value comparing difference between the light sensation sampled value of user position and the light sensation sampled value of television are greater than default light sensation threshold value;

S3, if so, then carry out Image Adjusting based on the light sensation sampled value of described user position, the light sensation sampled value of television and default light sensation threshold value.

Preferably, described user position comprises remote control end when user controls television,

The light sensation sampled value obtaining user position in described step S1 comprises:

S10, when user carries out straighforward operation, receive the remote control code value that remote control end sends, described remote control code value comprises the light sensation sampled value of remote control end;

S11, resolve described remote control code value according to setting coded format, obtain the light sensation sampled value of remote control end.

Preferably, carry out Image Adjusting in described step S3 to comprise:

The image parameter that S301, reading television are current;

S302, according to the light sensation sampled value of described remote control end, the light sensation sampled value of television and default light sensation threshold value, calculate the light sensation adjusted value between television and remote control end;

S303, according to current image parameter, described light sensation adjusted value, calculate target image parameter, and carry out Image Adjusting according to this target image parameter.

Preferably, described step S303 specifically comprises:

A0, judge whether the light sensation sampled value of remote control end is greater than the light sensation sampled value of television, when being judged as YES, forward steps A 1 to, otherwise forward steps A 2 to;

A1, according to the first calculation of parameter target image parameter, and carry out Image Adjusting according to this target image parameter, described first parameter comprises the critical value of the critical value of present image parameter and image parameter, described light sensation adjusted value and described light sensation adjusted value;

A2, according to the second calculation of parameter target image parameter, and carry out Image Adjusting according to this target image parameter, described second parameter comprises the critical value of present image parameter, described light sensation adjusted value and described light sensation adjusted value.

Preferably, described image parameter comprises image brightness values and image contrast value;

In described steps A 1, calculate target image parameter according to the first formula, described first formula is:

$P_0=P_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(P_{max}-P_c);$

Wherein, P ₀for target image brightness value or target image contrast value; P _cfor present image brightness value or present image contrast value; P _maxfor maximum image brightness value or maximum image contrast value, it is constant; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant;

In described steps A 2, calculate target image parameter according to the second formula, described second formula is:

$Q_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*Q_c;$

Wherein, Q ₀for target image brightness value or target image contrast value; Q _cfor present image brightness value or present image contrast value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

For achieving the above object, the present invention also provides a kind of image adjusting device based on customer location, and described image adjusting device comprises:

Light sensation value receiver module, for receiving the light sensation sampled value that user position sends;

Light sensation value acquisition module, for obtaining the light sensation sampled value of television;

Light sensation value comparison module, whether the absolute value for comparing difference between the light sensation sampled value of user position and the light sensation sampled value of television is greater than default light sensation threshold value;

Image adjustment module, for carrying out Image Adjusting based on the light sensation sampled value of described user position, the light sensation sampled value of television and default light sensation threshold value.

Preferably, described user position comprises remote control end when user controls television, and described light sensation value receiver module comprises:

Remote control code value receiving element, for receiving the remote control code value that remote control end sends, described remote control code value comprises the light sensation sampled value of remote control end;

Remote control code value resolution unit, for resolving described remote control code value according to setting coded format, obtains the light sensation sampled value of remote control end.

Preferably, described image adjustment module comprises:

Image parameter reading submodule, for reading the current image parameter of television;

Light sensation adjustment calculation submodule, for according to the light sensation sampled value of described remote control end, the light sensation sampled value of television and default light sensation threshold value, calculates the light sensation adjusted value between television and remote control end;

Target image calculation of parameter submodule, for according to current image parameter, described light sensation adjusted value, calculates target image parameter;

Image Adjusting submodule, for carrying out Image Adjusting according to calculating the target image parameter obtained.

Preferably, described target image calculation of parameter submodule comprises:

Judging unit, for judging whether the light sensation sampled value of remote control end is greater than the light sensation sampled value of television;

Target image parameter first computing unit, for when the light sensation sampled value of remote control end is greater than the light sensation sampled value of television, according to the first calculation of parameter target image parameter, wherein, described first parameter comprises the critical value of the critical value of present image parameter and image parameter, described light sensation adjusted value and described light sensation adjusted value;

Target image parameter second computing unit, for when the light sensation sampled value of remote control end is less than the light sensation sampled value of television, according to the second calculation of parameter target image parameter, wherein, described second parameter comprises the critical value of present image parameter, described light sensation adjusted value and described light sensation adjusted value.

Preferably, described image parameter comprises image brightness values and image contrast value;

Described target image parameter first computing unit specifically for, calculate target image parameter according to the first formula, described first formula is:

$P_0=P_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(P_{max}-P_c);$

Wherein, P ₀for target image brightness value or target image contrast value; P _cfor present image brightness value or present image contrast value; P _maxfor maximum image brightness value or maximum image contrast value, it is constant; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant;

Described target image parameter second computing unit specifically for, calculate target image parameter according to the second formula, described second formula is:

$Q_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*Q_c;$

Wherein, Q ₀for target image brightness value or target image contrast value; Q _cfor present image brightness value or present image contrast value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

Further, for achieving the above object, the present invention also provides a kind of television system, comprises television and remote control end, and described remote control end comprises the optical inductor for gathering remote control end ambient light value and the dispensing device for sending the remote control end ambient light value that described optical inductor collects; Described television comprises above-mentioned arbitrary described image adjusting device.

Preferably, described remote control end also comprises analog to digital conversion circuit and coding circuit; The ambient light value that analog-digital conversion circuit as described is used for optical inductor to collect is converted to light sensation sampled value; Described coding circuit is used for described light sensation sampled value to carry out encoding to form remote control code value according to the coded format preset; When user carries out straighforward operation, described remote control code value is sent to described image adjusting device by described dispensing device.

The present invention considers that ambient brightness residing for customer location gathers the ambient brightness of user position for the impact of viewing effect, thus television can compare according to the ambient brightness of the ambient brightness of user position and television itself, the picture display effect of dynamic conditioning television, improves user's viewing effect and experience.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of image adjusting method one embodiment that the present invention is based on customer location;

Fig. 2 is the refinement step schematic flow sheet of step S1 in Fig. 1;

Fig. 3 is the refinement step schematic flow sheet of step S3 in Fig. 1;

Fig. 4 is the refinement schematic flow sheet of step S303 in Fig. 3;

Fig. 5 is target brightness value B ₀the curve synoptic diagram corresponding to computing formula one embodiment;

Fig. 6 is target brightness value B ₀the curve synoptic diagram corresponding to another embodiment of computing formula;

Fig. 7 is the high-level schematic functional block diagram of image adjusting device one embodiment that the present invention is based on customer location;

Fig. 8 is the refinement high-level schematic functional block diagram of light sensation value receiver module in Fig. 7;

Fig. 9 is the refinement high-level schematic functional block diagram of image adjustment module in Fig. 7;

Figure 10 is the refinement high-level schematic functional block diagram of target image calculation of parameter submodule in Fig. 9;

Figure 11 is the high-level schematic functional block diagram of television system one embodiment of the present invention;

Figure 12 is the high-level schematic functional block diagram of remote control end in Figure 11.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

With reference to the schematic flow sheet that Fig. 1, Fig. 1 are image adjusting method one embodiment that the present invention is based on customer location.In the present embodiment, described image adjusting method comprises:

Step S1, obtains the light sensation sampled value of user position and the light sensation sampled value of television;

Remote control end can be placed on when watching TV and carry out straighforward operation at any time to facilitate by the side of by general user, based on above-mentioned consideration, optical inductor can be increased on remote control end, the ambient brightness of remote control end that now optical inductor collects can be considered the ambient brightness of user position, simultaneously, remote control end can send separately the light sensation sampled value collected, and also can send to television simultaneously with other remote informations.In addition, can also adopt the ambient brightness of other equipment collection user positions in the present embodiment, the intelligent mobile terminal of such as user, the photosensitive device etc. be arranged on sofa, be not restricted this herein.And the acquisition of light sensation sampled value for television, preferably the direct optical inductor from being arranged at television obtains.For the ease of understanding, in following embodiment, unification gathers user place environmental light parameter for the remote control end at user place and adjustment process is described.

In addition, television, for the obtain manner of the light sensation sampled value of remote control end, can be sent to television by remote control end by user at random, also remote control end can be set to television timed sending, also can be obtained after remote control end sends the request of acquisition by television.Acquisition for the light sensation sampled value of television then synchronously can be carried out, or also can be the acquisition carrying out the light sensation sampled value of television after the light sensation sampled value receiving the transmission of remote control end again with the transmission of the light sensation sampled value of remote control end.Concrete mode does not limit, and can arrange according to actual needs.

Step S2, whether the absolute value comparing difference between the light sensation sampled value of user position and the light sensation sampled value of television is greater than default light sensation threshold value;

After the light sensation sampled value of the light sensation sampled value and television that get remote control end, need to compare the absolute value of difference therebetween, to judge whether the image adjustment needing to carry out television.

The consideration of the factors such as view-based access control model sensory effects and measure error, preset light sensation threshold value in the present embodiment, this light sensation threshold value can be established according to actual conditions, is not restricted this herein.When between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference is less than or equal to this default light sensation threshold value, now, slight ambient light difference can't have influence on the viewing effect of user, therefore, in such situation, the Image Adjusting carrying out television is not needed.Otherwise, when between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference is greater than this default light sensation threshold value, now, the ambient brightness of user present position and the ambient brightness of television differ greatly, now user's viewing effect is poor, therefore, need to adjust the image of television.

Step S3, if so, then carries out Image Adjusting based on the light sensation sampled value of described user position, the light sensation sampled value of television and default light sensation threshold value;

Step S4, if not, does not then adjust image.

In the present embodiment, when between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference is greater than default light sensation threshold value, now television and remote control end luminance difference therebetween cross the viewing effect that senior general affects user, therefore, need to carry out Image Adjusting.Otherwise, then do not need to carry out Image Adjusting.Image Adjusting described in the present embodiment refers to the adjustment of the parameter on the screen picture display brightness affecting television, such as backlight, contrast.In the present embodiment, the parameter adjustment of current screen image display brightness is a lot of to the methods of the light intensity meeting user place environment, such as, preset the mapping relations table that between both television and remote control end, light sensation difference and image parameter adjust; Again such as, adjust and detect, stop adjusting when the absolute value of light sensation difference is less than default light sensation threshold value when between both the television detected after adjusting and remote control end; Or be directly calculate the parameter value needing to adjust to, then adjust the parameter value of image until stop adjustment when reaching the parameter value calculated.Although the methods realized are a lot, the viewing effect after adjustment is not necessarily best, therefore, can arrange according to actual needs for concrete method of adjustment.

Because human eye to have the non-linear impression of instinct to brightness, the ambient light therefore for different brightness has different brightness sensation characteristics, and the light change of such as eyes to lower gray scale is more responsive.During the low light level, if light intensity doubles, then the enhancing of brightness that human eye perceives arrives will more than one times; And during high light, if light intensity doubles, then the human eye perceives enhancing of arriving is less than one times.When user watches TV in the environment that brightness is large, relatively dark screen intensity then can allow people not see Chu, also namely remote control end and the absolute value of the difference of the light sensation sampled value of television be greater than default light sensation threshold value and while remote control end light sensation sampled value when being greater than the light sensation sampled value of television, now need the luminance parameter of screen picture to heighten; And if user is in dim environment, if excessively bright video screen, eyes of user then can be allowed to feel under the weather, also namely remote control end and the absolute value of the difference of the light sensation sampled value of television be greater than default light sensation threshold value and while remote control end light sensation sampled value when being less than the light sensation sampled value of television, now need the luminance parameter turning down screen picture.

In the present embodiment, by obtaining light sensation sampled value that remote control end gathers thus indirectly obtaining the ambient light value of user position, simultaneously preset light sensation threshold value as the benchmark whether carrying out Image Adjusting according to actual conditions, by contrasting the size between the absolute value of difference between the light sensation sampled value of remote control end and the light sensation sampled value of television and default light sensation threshold value, thus Image Adjusting is made a determination.

With reference to the refinement step schematic flow sheet that Fig. 2, Fig. 2 are step S1 in Fig. 1.Based on above-described embodiment, in the present embodiment, user position comprises remote control end when user controls television, and the step obtaining the light sensation sampled value of user position in above-mentioned steps S1 comprises:

Step S10, when user carries out straighforward operation, receive the remote control code value that remote control end sends, described remote control code value comprises the light sensation sampled value of remote control end;

Step S11, according to remote control code value described in setting format analysis, obtains the light sensation sampled value of remote control end.

In the present embodiment, when the acquisition for remote control end light sensation sampled value preferably adopts user to carry out straighforward operation, the mode of the remote control code value sent by remote control end is obtained.

By increasing the ambient brightness of optical flame detector for induction user position on remote control end; And then by analog to digital conversion circuit, the ambient brightness of collection is converted into light sensation sampled value, and light sensation sampled value encoded in the remote control mode that sends into user operation remote control end by coding circuit, the coded format of this remote control mode comprises guidance code, customer number, numeric data code and light sensation sampled value.Remote control mode sends to television to resolve by corresponding Remoting Protocol by remote control end, and television resolves described remote control code value according to the coded format of setting, thus obtains the light sensation sampled value of remote control end.

Aforesaid way is the optimal way of the light sensation sampled value obtaining remote control end.In the present embodiment, based on the various characteristicss of demand in actual use procedure, such as should get the ambient light intensity of user position, also to obtain convenient simultaneously and be easy to realize, therefore, preferred employing arranges optical inductor on remote control end, reset the coded system of remote control end for writing the light sensation sampled value collected simultaneously, can while transmission remote control command by the random straighforward operation of user, also the light sensation sampled value that collects is sent and as the foundation condition judging whether to carry out Image Adjusting to television, and meet pre-conditioned after can perform adjustment to TV end image.

With reference to the schematic flow sheet that Fig. 3, Fig. 3 are the refinement step of step S3 in Fig. 1.Based on above-described embodiment, in the present embodiment, above-mentioned steps S3 comprises:

Step S301, reads the image parameter that television is current;

In the present embodiment, image parameter refers to the screen-picture display parameters of television, comprise brightness, contrast, gamma value etc., can when ensureing the normal picture display effect of screen by adjustment above-mentioned parameter, can also reduce due to the excessive impact on user's viewing effect of difference between the light luminance of user present position and the ambient light brightness of television, also namely by the picture display parameters of adjustment television, to reduce the impact of the difference between the light luminance of remote control end and the light luminance of television on user, therefore in various embodiments of the present invention, image parameter is preferably brightness, contrast.

Step S302, according to the light sensation sampled value of described remote control end, the light sensation sampled value of television and default light sensation threshold value, calculates the light sensation adjusted value between television and remote control end;

The consideration of the factors such as view-based access control model sensory effects and measure error, preset light sensation threshold value in the present embodiment, this light sensation threshold value can be established according to actual conditions, is not restricted this herein.When between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference does not exceed this default light sensation threshold value, under then thinking that remote control end and television are in the light luminance of same environment, therefore need not carry out Image Adjusting, otherwise need to carry out Image Adjusting.

In the present embodiment, for the definition of the difference of the light sensation sampled value between remote control end and television, with default light sensation threshold value for benchmark, also be, if the absolute value of the light sensation sampled value difference between remote control end and television has exceeded this default light sensation threshold value, then think the difference existed between remote control end and television on light luminance, therefore, the computing formula for the light sensation adjusted value Δ ADC between television and remote control end is as follows:

ΔADC＝|RADC-TADC|-δ；

Wherein, Δ ADC represents the light sensation adjusted value between television and remote control end; RADC represents the light sensation sampled value of remote control end; TADC represents the light sensation sampled value of television; δ represents default light sensation threshold value.

Step S303, according to current image parameter, described light sensation adjusted value, calculates target image parameter, and carries out Image Adjusting according to target image parameter.

For the implementation method of Image Adjusting, the regulated quantity that both can adjust as required adjusts, and also can adjust according to final target adjustment value, and two kinds of modes can realize adjusting image.In the present embodiment, preferably carry out Image Adjusting according to the target image parameter calculated.

According to current image parameter, light sensation adjusted value, the function of light sensation adjusted value and target image parameter can be simulated, such as, with target image parameter television display brightness value B ₀for example, then B ₀=F (B _c, △ ADC), wherein, B _cfor the display brightness value of TV end.The account form of other target image parameters, with television display brightness value, therefore repeats no more.

In the present embodiment, the concrete form of the function of above-mentioned calculating target image parameter does not limit, as long as can realize Image Adjusting.It should be noted that, give tacit consent to △ ADC in image parameter adjustment process constant.After calculating target image parameter according to above-mentioned function formula, then carry out Image Adjusting according to target image parameter, concrete Image Adjusting mode does not limit.

Further, reference Fig. 4, Fig. 4 is the refinement schematic flow sheet of step S303 in Fig. 3.Based on above-described embodiment, in another embodiment of image adjusting method of the present invention, the step S303 of above-mentioned calculating target image parameter specifically comprises:

Step S3031, judges whether the light sensation sampled value of remote control end is greater than the light sensation sampled value of television, when being judged as YES, forwards step S3032 to, otherwise forwards step S3033 to;

Step S3032, according to the first calculation of parameter target image parameter, and carry out Image Adjusting according to this target image parameter, described first parameter comprises the critical value of the critical value of present image parameter and image parameter, described light sensation adjusted value and described light sensation adjusted value;

1) between the light sensation sampled value of remote control end and television, the absolute value of difference is greater than default light sensation threshold value and the light sensation sampled value of the end of remote control is simultaneously greater than the light sensation sampled value of television, now residing for user, the light of environment is brighter, and ambient light residing for TV is darker, therefore will affect visual effect when user watches TV, need the brightness and the contrast that promote television.

Optionally, according to the maximum of the maximum of current image parameter, image parameter, light sensation adjusted value, light sensation adjusted value, the first formula calculating target image parameter is as follows:

$P_0=P_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(P_{max}-P_c);$

Wherein, P ₀for target image brightness value or target image contrast value; P _cfor present image brightness value or present image contrast value; P _maxfor maximum image brightness value or maximum image contrast value, it is constant; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

(1) with reference to above-mentioned first formula, the target brightness value B that television needs to adjust to is calculated ₀computing formula as follows:

$B_0=B_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(B_{max}-B_c);$

Wherein, B ₀for television needs the target brightness value adjusted to; B _cfor the present intensity value of television read; B _maxfor the maximum brightness value that television is adjustable to, it is constant value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

(2) with reference to above-mentioned first formula, the contrast value D that television needs to adjust to is calculated ₀computing formula as follows:

$D_0=D_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(D_{max}-D_c);$

Wherein, D ₀for television needs the targeted contrast angle value adjusted to; D _cfor the contrast value that the television read is current; D _maxfor the maximum contrast angle value that television is adjustable to, it is constant value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

In above-mentioned formula, the truth of a matter of logarithmic function also can select other to be greater than the positive number of 1, and for convenience of calculating, in above-mentioned computing formula, the truth of a matter of preferred logarithmic function is 10.In addition, the special case situation of limiting value is considered, also by each limiting value (B in above-mentioned formula _max, D _max, Δ ADC _max) circulated in above-mentioned each computing formula as constant value.

Step S3033, according to the second calculation of parameter target image parameter, and carries out Image Adjusting according to this target image parameter, and described second parameter comprises the critical value of present image parameter, described light sensation adjusted value and described light sensation adjusted value.

2) between the light sensation sampled value of remote control end and television, the absolute value of difference is greater than default light sensation threshold value and the light sensation sampled value of the end of remote control is simultaneously less than the light sensation sampled value of television, now the light of environment residing for user is darker, and the ambient light residing for television is brighter; If now user goes down to see brighter picture at darker environment, not only unfavorable to vision protection, and for majority; especially the elderly to see Television watching long a little; dizziness may be played by shadow, feel sick etc. phenomenon, therefore need the brightness of television and contrast to reduce.

The maximum of the optional maximum according to current image parameter, image parameter, light sensation adjusted value, light sensation adjusted value, the second formula calculating target image parameter is as follows:

$Q_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*Q_c;$

Wherein, Q ₀for target image brightness value or target image contrast value; Q _cfor present image brightness value or present image contrast value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

(1) with reference to above-mentioned second formula, the target brightness value B that television needs to adjust to is calculated ₀computing formula as follows:

$B_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*B_c;$

Wherein, B ₀for television needs the target brightness value adjusted to; B _cfor the present intensity value of television read; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

(2) with reference to above-mentioned second formula, the contrast value D that television needs to adjust to is calculated ₀computing formula as follows:

$D_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*D_c;$

Wherein, D ₀for television needs the targeted contrast angle value adjusted to; D _cfor the contrast value that the television read is current; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

In above-mentioned formula, the truth of a matter of logarithmic function also can select other to be less than the positive number of 1, for convenience of calculating, and the truth of a matter a=1/10 of preferred logarithmic function in above-mentioned computing formula.In addition, the special case situation of limiting value is considered, also by limiting value (Δ ADC in above-mentioned formula _max) circulated in above-mentioned each computing formula as constant value.

In general actual use procedure, occur the special case situation of limiting value hardly, such as, the image brightness of television is maximum or contrast is maximum; Television light is very dark and remote control end light is strong especially, or television light is very strong and remote control end light is dark especially.In addition, in view of area of space residing in user's viewing process is close, also namely corresponding light environment is close, and therefore, Δ ADC mainly will concentrate within a certain scope and fluctuate.

In addition, because human eye has different brightness sensation characteristics under varying environment brightness, same brightness simultaneously, to the human eye being adapted to different mean flow rate, also can cause different brightness impressions.Human eye has the non-linear impression of instinct to brightness, and the light change of eyes to lower gray scale is more responsive, and during the low light level, if light intensity doubles, the enhancing that human eye perceives arrives is more than one times; During high light, if light intensity doubles, the enhancing that human eye perceives arrives, then less than one times, approximately only has the light of about 18% light-source brightness, and also namely human eye perceives is approximately the brightness of half.

Therefore, consider based on above-mentioned requirements, the present embodiment preferably adopts logarithmic function form calculus target image parameter, and Fig. 5 is target brightness value B ₀the curve synoptic diagram corresponding to computing formula one embodiment, as we can see from the figure, when the value of Δ ADC is very little, now along with the increase of Δ ADC, object brightness B ₀the amplitude of lifting maximum; And Δ ADC be a certain large numerical value time, now along with the increase of Δ ADC, object brightness B ₀the amplitude of lifting minimum; Wherein, contrast value D ₀corresponding curve synoptic diagram and target brightness value B ₀similar, therefore no longer too much repeat.

Correspondingly, Fig. 6 is target brightness value B ₀the curve synoptic diagram corresponding to another embodiment of computing formula.As we can see from the figure, when the value of Δ ADC is very little, now along with the increase of Δ ADC, object brightness B ₀the amplitude of decline maximum; And Δ ADC be a certain large numerical value time, now along with the increase of Δ ADC, object brightness B ₀the amplitude of decline minimum; Wherein, contrast value D ₀corresponding curve synoptic diagram and target brightness value B ₀similar, therefore no longer too much repeat.

Relative to the computational methods of other target images adjustment parameter, These characteristics makes the target image parameter calculated in the present embodiment can to fit better various actual conditions, thus provides outstanding viewing effect to experience for user.In addition, for the concrete grammar adjusting to target image parameter, can carry out according to the adjustment mode preset in television, also can carry out corresponding presetting according to actual needs.

With reference to the high-level schematic functional block diagram that Fig. 7, Fig. 7 are image adjusting device one embodiment that the present invention is based on customer location.In the present embodiment, described image adjusting device comprises:

Light sensation value receiver module 10, for receiving the light sensation sampled value that user position sends;

Light sensation value acquisition module 20, for obtaining the light sensation sampled value of television;

The light sensation sampled value that light sensation value receiver module 10 sends for receiving user position, such as, can be sent by the remote control end of user position, such as on remote control end, increase optical inductor, the now visual ambient brightness being same as user position of ambient brightness of remote control end that collects of optical inductor, meanwhile, remote control end can send to light sensation value receiver module 10 the light sensation sampled value collected separately, also can send to light sensation value receiver module 10 simultaneously with other remote informations.In addition, in the present embodiment, light sensation value receiver module 10 can also receive other equipment collections and send the ambient brightness of user position, the intelligent mobile terminal that such as light sensation value receiver module 10 receives user or the photosensitive device collection that is arranged on sofa the ambient brightness etc. of the user position sent.And the acquisition of light sensation sampled value for television, preferably the direct optical inductor from being arranged at television obtains, for the ease of understanding, in following embodiment, unification gathers user place environmental light parameter for the remote control end at user place and adjustment process is described.

For the send mode of the light sensation sampled value of remote control end, can be sent at random to television by remote control end by user, also remote control end can be set to television timed sending, also can be obtained after remote control end sends the request of acquisition by television.Acquisition for the light sensation sampled value of television then synchronously can be carried out, or also can be the acquisition that light sensation value acquisition module 20 carries out the light sensation sampled value of television again after light sensation value receiver module 10 receives the light sensation sampled value of remote control end transmission with the transmission of the light sensation sampled value of remote control end.Concrete mode does not limit, and can arrange according to actual needs.

Light sensation value comparison module 30, whether the absolute value for comparing difference between the light sensation sampled value of user position and the light sensation sampled value of television is greater than default light sensation threshold value;

Image adjustment module 40, for carrying out Image Adjusting based on the light sensation sampled value of described user position, the light sensation sampled value of television and default light sensation threshold value.

After light sensation value receiver module 10 receives the light sensation sampled value of remote control end transmission and light sensation value acquisition module 20 gets the light sensation sampled value of television, light sensation value comparison module 30 needs to compare the absolute value of difference therebetween, to judge whether the image adjustment needing to carry out television.

The consideration of the factors such as view-based access control model sensory effects and measure error, light sensation threshold value is preset in the present embodiment, when between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference is less than or equal to this default light sensation threshold value, now, slight ambient light difference can't have influence on the viewing effect of user, therefore, in such situation, the Image Adjusting carrying out television is not needed.Otherwise, when between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference is greater than this default light sensation threshold value, now, the ambient brightness of user present position and the ambient brightness of television differ greatly, now user's viewing effect is poor, therefore, need to adjust the image of television.

In the present embodiment, first received the light sensation sampled value of the remote control end that remote control end sends by light sensation value receiver module 10, and obtain the light sensation sampled value of television by light sensation value acquisition module 20; Secondly, compared by the absolute value of difference between the light sensation sampled value of light sensation value comparison module 30 pairs of remote control ends and the light sensation sampled value of television again, if the absolute value of the difference compared is greater than default light sensation threshold value, then carried out the adjustment of television image display by image adjustment module 40, thus the light difference reducing remote control end and television watches impact to user.

With reference to the refinement high-level schematic functional block diagram that Fig. 8, Fig. 8 are light sensation value receiver module in Fig. 7.Based on above-described embodiment, in the present embodiment, light sensation value receiver module 10 comprises:

Remote control code value receiving element 101, for receiving the remote control code value that remote control end sends, described remote control code value comprises the light sensation sampled value of remote control end;

Remote control code value resolution unit 102, for resolving described remote control code value according to setting coded format, obtains the light sensation sampled value of remote control end.

In the present embodiment, for the reception of the light sensation sampled value of the remote control end of remote control end transmission, when preferred employing user carries out straighforward operation, received the remote control code value of remote control end transmission by remote control code value receiving element 101, and resolve rear acquisition by remote control code value resolution unit 102.

By increasing the ambient brightness of optical flame detector for induction user position on remote control end; And then by analog to digital conversion circuit, the ambient brightness of collection is converted into light sensation sampled value, and light sensation sampled value encoded in the remote control mode that sends into user operation remote control end by coding circuit, the coded format of this remote control mode comprises guidance code, customer number, numeric data code and light sensation sampled value.Remote control mode is sent to remote control code value receiving element 101 by corresponding Remoting Protocol by remote control end, and the code value of remote control simultaneously resolution unit 102 resolves described remote control code value according to the coded format of setting, thus obtains the light sensation sampled value of remote control end.

With reference to the refinement high-level schematic functional block diagram that Fig. 9, Fig. 9 are image adjustment module in Fig. 7.Based on above-described embodiment, in the present embodiment, described image adjustment module 40 comprises:

Image parameter reading submodule 401, for reading the current image parameter of television;

In the present embodiment, image parameter refers to the screen-picture display parameters of television, comprise brightness, contrast, gamma value etc., can when ensureing the normal picture display effect of screen by adjustment above-mentioned parameter, can also reduce due to the excessive impact on user's viewing effect of difference between the light luminance of user present position and the ambient light brightness of television, also namely by the picture display parameters of adjustment television, to reduce the impact of the difference between the light luminance of remote control end and the light luminance of television on user, therefore in various embodiments of the present invention, image parameter is preferably brightness, contrast.

Light sensation adjustment calculation submodule 402, for according to the light sensation sampled value of described remote control end, the light sensation sampled value of television and default light sensation threshold value, calculates the light sensation adjusted value between television and remote control end;

The consideration of the factors such as view-based access control model sensory effects and measure error, preset light sensation threshold value in the present embodiment, this light sensation threshold value can be established according to actual conditions, is not restricted this herein.When between the light sensation sampled value and the light sensation sampled value of television of remote control end, the absolute value of difference does not exceed this default light sensation threshold value, under then thinking that remote control end and television are in the light luminance of same environment, therefore need not carry out Image Adjusting, otherwise need to carry out Image Adjusting.

In the present embodiment, for the definition of the difference of the light sensation sampled value between remote control end and television, with default light sensation threshold value for benchmark, also be, if the absolute value of the light sensation sampled value difference between remote control end and television has exceeded this default light sensation threshold value, then think the difference existed between remote control end and television on light luminance, therefore, the computing formula for the light sensation adjusted value Δ ADC between television and remote control end is as follows:

ΔADC＝|RADC-TADC|-δ；

Wherein, Δ ADC represents the light sensation adjusted value between television and remote control end; RADC represents the light sensation sampled value of remote control end; TADC represents the light sensation sampled value of television; δ represents default light sensation threshold value.

Target image calculation of parameter submodule 403, for according to current image parameter, described light sensation adjusted value, calculates target image parameter;

Image Adjusting submodule 404, for carrying out Image Adjusting according to calculating the target image parameter obtained.

Consider the adaptability requirement that user changes for light luminance, while therefore whole image adaptation procedures needs to keep Serial regulation, also require to complete adjustment as early as possible.In the present embodiment, image parameter corresponding after preferably directly calculating adjustment, also namely by adjusting the image parameter reached.Therefore, according to current image parameter, light sensation adjusted value, the function of image parameter corresponding after calculating adjustment can be simulated, such as, to calculate the television display brightness value B after adjustment ₀for example, B ₀=F (B _c, △ ADC), wherein, B _cfor the display brightness value of TV end.The account form of other target image parameters, with television display brightness value, therefore repeats no more.

In the present embodiment, the concrete form of the function of above-mentioned calculating target image parameter does not limit, as long as can realize Image Adjusting.It should be noted that, give tacit consent to △ ADC in image parameter adjustment process constant.After calculating target image parameter according to above-mentioned function formula, then carry out Image Adjusting according to target image parameter, concrete Image Adjusting mode does not limit.

With reference to the refinement high-level schematic functional block diagram that Figure 10, Figure 10 are target image calculation of parameter submodule in Fig. 9.Based on above-described embodiment, in the present embodiment, described target image calculation of parameter submodule 403 comprises:

Judging unit 4031, for judging whether the light sensation sampled value of remote control end is greater than the light sensation sampled value of television;

Target image parameter first computing unit 4032, for when the light sensation sampled value of remote control end is greater than the light sensation sampled value of television, according to the first calculation of parameter target image parameter, wherein, described first parameter comprises the critical value of the critical value of present image parameter and image parameter, described light sensation adjusted value and described light sensation adjusted value;

1) between the light sensation sampled value of remote control end and television, the absolute value of difference is greater than default light sensation threshold value and the light sensation sampled value of the end of remote control is simultaneously greater than the light sensation sampled value of television, now residing for user, the light of environment is brighter, and ambient light residing for TV is darker, therefore by affecting visual effect when user watches TV, need the brightness of television and contrast to promote.

Optionally, target image parameter first computing unit 4032 is according to the maximum of the maximum of current image parameter, image parameter, light sensation adjusted value, light sensation adjusted value, and the first formula calculating target image parameter is as follows:

$P_0=P_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(P_{max}-P_c);$

Wherein, P ₀for target image brightness value or target image contrast value; P _cfor present image brightness value or present image contrast value; P _maxfor maximum image brightness value or maximum image contrast value, it is constant; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

(1) with reference to above-mentioned first formula, the target brightness value B that television needs to adjust to is calculated ₀computing formula as follows:

$B_0=B_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(B_{max}-B_c);$

Wherein, B ₀for television needs the target brightness value adjusted to; B _cfor the present intensity value of television read; B _maxfor the maximum brightness value that television is adjustable to, it is constant value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

(2) with reference to above-mentioned first formula, the contrast value D that television needs to adjust to is calculated ₀computing formula as follows:

$D_0=D_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(D_{max}-D_c);$

Wherein, D ₀for television needs the targeted contrast angle value adjusted to; D _cfor the contrast value that the television read is current; D _maxfor the maximum contrast angle value that television is adjustable to, it is constant value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

In above-mentioned formula, the truth of a matter of logarithmic function also can select other to be greater than the positive number of 1, and for convenience of calculating, in above-mentioned computing formula, the truth of a matter of preferred logarithmic function is 10.In addition, the special case situation of limiting value is considered, also by each limiting value (B in above-mentioned formula _max, D _max, Δ ADC _max) circulated in above-mentioned each computing formula as constant value.

Target image parameter second computing unit 4033, for when the light sensation sampled value of remote control end is less than the light sensation sampled value of television, according to the second calculation of parameter target image parameter, wherein, described second parameter comprises the critical value of present image parameter, described light sensation adjusted value and described light sensation adjusted value.

2) between the light sensation sampled value of remote control end and television, the absolute value of difference is greater than default light sensation threshold value and the light sensation sampled value of the end of remote control is simultaneously less than the light sensation sampled value of television, now the light of environment residing for user is darker, and the ambient light residing for television is brighter; If now user goes down to see brighter picture at darker environment, not only unfavorable to vision protection, and for majority; especially the elderly to see Television watching long a little; dizziness may be played by shadow, feel sick etc. phenomenon, therefore need the brightness of television and contrast to reduce.

Optionally, target image parameter second computing unit 4033 is according to the maximum of the maximum of current image parameter, image parameter, light sensation adjusted value, light sensation adjusted value, and the second formula calculating target image parameter is as follows:

$Q_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*Q_c;$

Wherein, Q ₀for target image brightness value or target image contrast value; Q _cfor present image brightness value or present image contrast value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

(1) with reference to above-mentioned second formula, the target brightness value B that television needs to adjust to is calculated ₀computing formula as follows:

$B_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*B_c;$

Wherein, B ₀for television needs the target brightness value adjusted to; B _cfor the present intensity value of television read; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

(2) with reference to above-mentioned second formula, the contrast value D that television needs to adjust to is calculated ₀computing formula as follows:

$D_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*D_c;$

Wherein, D ₀for television needs the targeted contrast angle value adjusted to; D _cfor the contrast value that the television read is current; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant value.

In above-mentioned formula, the truth of a matter of logarithmic function also can select other to be less than the positive number of 1, for convenience of calculating, and the truth of a matter a=1/10 of preferred logarithmic function in above-mentioned computing formula.In addition, the special case situation of limiting value is considered, also by each limiting value (Δ ADC in above-mentioned formula _max) circulated in above-mentioned each computing formula as constant value.

In general actual use procedure, occur the special case situation of limiting value hardly, such as, the image brightness of television is maximum or contrast is maximum; Television light is very dark and remote control end light is strong especially, or television light is very strong and remote control end light is dark especially.In addition, in view of area of space residing in user's viewing process is close, also namely corresponding light environment is close, and therefore, Δ ADC mainly will concentrate within a certain scope and fluctuate.

In addition, because human eye has different brightness sensation characteristics under varying environment brightness, same brightness simultaneously, to the human eye being adapted to different mean flow rate, also can cause different brightness impressions.Human eye has the non-linear impression of instinct to brightness, and the light change of eyes to lower gray scale is more responsive, and during the low light level, if light intensity doubles, the enhancing that human eye perceives arrives is more than one times; During high light, if light intensity doubles, the enhancing that human eye perceives arrives, then less than one times, approximately only has the light of about 18% light-source brightness, and also namely human eye perceives is approximately the brightness of half.

Therefore, consider based on above-mentioned requirements, the present embodiment preferably adopts logarithmic function form calculus target image parameter, and Fig. 5 is target brightness value B ₀the curve synoptic diagram corresponding to computing formula one embodiment, as we can see from the figure, when the value of Δ ADC is very little, now along with the increase of Δ ADC, object brightness B ₀the amplitude of lifting maximum; And Δ ADC be a certain large numerical value time, now along with the increase of Δ ADC, object brightness B ₀the amplitude of lifting minimum.

Correspondingly, Fig. 6 is target brightness value B ₀the curve synoptic diagram corresponding to another embodiment of computing formula.As we can see from the figure, when the value of Δ ADC is very little, now along with the increase of Δ ADC, object brightness B ₀the amplitude of decline maximum; And Δ ADC be a certain large numerical value time, now along with the increase of Δ ADC, object brightness B ₀the amplitude of decline minimum.

Relative to the computational methods of other target images adjustment parameter, the target image parameter calculated in the present embodiment can be fitted various actual conditions better, thus provides outstanding viewing effect to experience for user.In addition, for the concrete grammar adjusting to target image parameter, can carry out according to the adjustment mode preset in television, also can carry out corresponding presetting according to actual needs.

With reference to the high-level schematic functional block diagram that Figure 11, Figure 11 are television system one embodiment of the present invention.In the present embodiment, described television system comprises remote control end 210 and television 220, and wherein said remote control end 210 comprises optical inductor 2101 and dispensing device 2102; Television 220 comprises above-mentioned arbitrary described image adjusting device 2201.

In the present embodiment, remote control end 210, for being gathered the ambient light value of remote control end 210 by optical inductor 2101, is also the ambient light value of user position, and the ambient light value collected is sent to television 220 by dispensing device 2102.The image adjusting device 2201 of television 220 is for receiving and the ambient light value that sends of the dispensing device 2102 of resolving remote control end 210.Image adjusting device 2201 is also for gathering the ambient light value of television 220 simultaneously, and compares the ambient light value of remote control end 210 and the ambient light value difference therebetween of television 220; In addition, image adjusting device 2201 also for calculating the target image parameter for Image Adjusting, and adjusts image according to the target image parameter of this calculating.

Preferably, with reference to Figure 12, in the present embodiment, remote control end 210 also comprises analog to digital conversion circuit 2103 and coding circuit 2104; Analog-digital conversion circuit as described 2103 is converted to light sensation sampled value for the ambient light value collected by optical inductor 2101; Described coding circuit 2104 is for carrying out encoding described light sensation sampled value according to the coded format preset and form remote control code value; When user carries out straighforward operation, described remote control code value is sent to described image adjusting device 2201 by the dispensing device 2102 of described remote control end 210.

It should be noted that, the television system of the present embodiment realize principle and concrete structure can refer to previous embodiment, this is repeated no more herein.

These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (10)

1. based on an image adjusting method for customer location, it is characterized in that, described image adjusting method comprises:

S1, the acquisition light sensation sampled value of user position and the light sensation sampled value of television;

Whether S2, the absolute value comparing difference between the light sensation sampled value of user position and the light sensation sampled value of television are greater than default light sensation threshold value;

S3, if so, then carry out Image Adjusting based on the light sensation sampled value of described user position, the light sensation sampled value of television and default light sensation threshold value.

2. image adjusting method as claimed in claim 1, is characterized in that, described user position comprises remote control end when user controls television, and the light sensation sampled value obtaining user position in described step S1 comprises:

S10, when user carries out straighforward operation, receive the remote control code value that remote control end sends, described remote control code value comprises the light sensation sampled value of remote control end;

S11, resolve described remote control code value according to setting coded format, obtain the light sensation sampled value of remote control end.

3. image adjusting method as claimed in claim 2, is characterized in that, carry out Image Adjusting and comprise in described step S3:

The image parameter that S301, reading television are current;

S302, according to the light sensation sampled value of described remote control end, the light sensation sampled value of television and default light sensation threshold value, calculate the light sensation adjusted value between television and remote control end;

S303, according to current image parameter, described light sensation adjusted value, calculate target image parameter, and carry out Image Adjusting according to this target image parameter.

4. image adjusting method as claimed in claim 3, it is characterized in that, described step S303 specifically comprises:

A0, judge whether the light sensation sampled value of remote control end is greater than the light sensation sampled value of television, when being judged as YES, forward steps A 1 to, otherwise forward steps A 2 to;

A1, according to the first calculation of parameter target image parameter, and carry out Image Adjusting according to this target image parameter, described first parameter comprises the critical value of the critical value of present image parameter and image parameter, described light sensation adjusted value and described light sensation adjusted value;

A2, according to the second calculation of parameter target image parameter, and carry out Image Adjusting according to this target image parameter, described second parameter comprises the critical value of present image parameter, described light sensation adjusted value and described light sensation adjusted value.

5. image adjusting method as claimed in claim 4, it is characterized in that, described image parameter comprises image brightness values and image contrast value;

In described steps A 1, calculate target image parameter according to the first formula, described first formula is:

$P_0=P_c+\frac{\lg (1+\mathrm{\Δ}ADC)}{\lg (1+{\mathrm{\ΔADC}}_{max})}*(P_{max}-P_c);$

Wherein, P ₀for target image brightness value or target image contrast value; P _cfor present image brightness value or present image contrast value; P _maxfor maximum image brightness value or maximum image contrast value, it is constant; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant;

In described steps A 2, calculate target image parameter according to the second formula, described second formula is:

$Q_0={\log }_a\left(\frac{1+\mathrm{\Δ}ADC}{1+{\mathrm{\ΔADC}}_{max}}\right)*Q_c;$

Wherein, Q ₀for target image brightness value or target image contrast value; Q _cfor present image brightness value or present image contrast value; Δ ADC represents the light sensation adjusted value between television and remote control end; Δ ADC _maxfor the maximum of Δ ADC, it is constant.

6. based on an image adjusting device for customer location, it is characterized in that, described image adjusting device comprises:

Light sensation value receiver module, for receiving the light sensation sampled value that user position sends;

Light sensation value acquisition module, for obtaining the light sensation sampled value of television;

Light sensation value comparison module, whether the absolute value for comparing difference between the light sensation sampled value of user position and the light sensation sampled value of television is greater than default light sensation threshold value;

Image adjustment module, for carrying out Image Adjusting based on the light sensation sampled value of described user position, the light sensation sampled value of television and default light sensation threshold value.

7. image adjusting device as claimed in claim 6, is characterized in that, described user position comprises remote control end when user controls television, and described light sensation value receiver module comprises:

Remote control code value receiving element, for receiving the remote control code value that remote control end sends, described remote control code value comprises the light sensation sampled value of remote control end;

Remote control code value resolution unit, for resolving described remote control code value according to setting coded format, obtains the light sensation sampled value of remote control end.

8. image adjusting device as claimed in claim 7, it is characterized in that, described image adjustment module comprises:

Image parameter reading submodule, for reading the current image parameter of television;

Light sensation adjustment calculation submodule, for according to the light sensation sampled value of described remote control end, the light sensation sampled value of television and default light sensation threshold value, calculates the light sensation adjusted value between television and remote control end;

Target image calculation of parameter submodule, for according to current image parameter, described light sensation adjusted value, calculates target image parameter;

Image Adjusting submodule, for carrying out Image Adjusting according to calculating the target image parameter obtained.

9. image adjusting device as claimed in claim 8, it is characterized in that, described target image calculation of parameter submodule comprises:

Judging unit, for judging whether the light sensation sampled value of remote control end is greater than the light sensation sampled value of television;

Target image parameter first computing unit, for when the light sensation sampled value of remote control end is greater than the light sensation sampled value of television, according to the first calculation of parameter target image parameter, wherein, described first parameter comprises the critical value of the critical value of present image parameter and image parameter, described light sensation adjusted value and described light sensation adjusted value;

Target image parameter second computing unit, for when the light sensation sampled value of remote control end is less than the light sensation sampled value of television, according to the second calculation of parameter target image parameter, wherein, described second parameter comprises the critical value of present image parameter, described light sensation adjusted value and described light sensation adjusted value.

10. a television system, comprises television and remote control end, it is characterized in that, described remote control end comprises the optical inductor for gathering remote control end ambient light value and the dispensing device for sending the remote control end ambient light value that described optical inductor collects; Described television comprises arbitrary described image adjusting device in claim 6-9.