CN102810306A - Method for automatically controlling brightness of display screen wallpaper - Google Patents
Method for automatically controlling brightness of display screen wallpaper Download PDFInfo
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- CN102810306A CN102810306A CN2012102603593A CN201210260359A CN102810306A CN 102810306 A CN102810306 A CN 102810306A CN 2012102603593 A CN2012102603593 A CN 2012102603593A CN 201210260359 A CN201210260359 A CN 201210260359A CN 102810306 A CN102810306 A CN 102810306A
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Abstract
The invention discloses a method for automatically controlling brightness of display screen wallpaper. The method comprises the following steps of: 1, acquiring information, which comprises information of tone, saturation and brightness of light intensity of an ambient environment through a sensor by terminal equipment; 2, analyzing pixels comprising red, green and blue (RGB) color values of the wallpaper; 3, calculating the tone, saturation and brightness of a wallpaper image according to the RGB color values of the pixels of the wallpaper; 4, adjusting the brightness of the wallpaper according to the environmental light intensity, and adjusting the tone, saturation and brightness of the wallpaper; 5, adjusting the pixels of the wallpaper according to the brightness of the wallpaper, so that the adjusted pixels of the wallpaper are fused with the environmental light intensity; 6, generating a wallpaper according to the adjusted pixels of the wallpaper; and 7, displaying the fused wallpaper, keeping the display font of the display screen invariable, and returning to the step 1. Therefore, the brightness of the wallpaper is fused with or close to the ambient environment, the visual error of a user is avoided, and the vision of the user can be protected.
Description
Technical field
The present invention relates to a kind of display screen wallpaper of handheld device, particularly relate to the autocontrol method of a kind of display screen wallpaper brightness.
Background technology
At present, after the wallpaper of existing portable terminal was set, its display effect had no change.Under the insufficient light situation, the wallpaper that the user sees may be very bright, and this moment, the user can feel that the brightness of screen wallpaper is bigger, and is very dazzling; When light was strong, the user can feel that the screen wallpaper is dim, was difficult to identification; Thereby cause the information mistake to send out, the phone of dialing the wrong number causes unnecessary harassing and wrecking to other people; Also cause simultaneously self unnecessary telephone expenses loss, also might when shopping decision error and payment, cause great economic loss.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the autocontrol method of a kind of display screen wallpaper brightness is provided, make wallpaper brightness merge mutually, or brightness is approaching, avoid user's vision mistake with surrounding environment, and can vision protection.
In order to achieve the above object, the technical scheme that the present invention adopts is: the autocontrol method of a kind of display screen wallpaper brightness, and its step is following:
Step 1, terminal device are obtained the information of surrounding environment light intensity through sensor, comprise tone H_env, saturation degree S_env and brightness V_env;
Step 2, the pixel of wallpaper is analyzed, comprised three color values of RGB;
Step 3, according to three color values of RGB of the pixel of wallpaper, calculate tone H, saturation degree S and the brightness V of wallpaper image;
Step 4, according to the brightness of ambient light intensity adjustment wallpaper, adjusted wallpaper brightness is tone H ˊ, saturation degree S ˊ and brightness V ˊ;
Step 5, according to wallpaper brightness adjustment wallpaper pixel, adjusted wallpaper pixel R ˊ, G ˊ, B ˊ are merged with ambient light intensity mutually;
Step 6, generate wallpaper according to adjusted wallpaper pixel;
Wallpaper after step 7, demonstration are merged, and keep the display screen display font constant, return step 1.
Further, among the tone H of the described wallpaper image of step 3, saturation degree S and the brightness V, make that MAX is the maximal value of R, G, three components of B; MIN is the minimum value of three components;
If MAX=MIN, then
H=0；
S=0；
V=MAX/255；
If MAX ≠ MIN
When G >=B,
H=（Max-R+G-Min+B-Min）/（Max-Min）×60；
S=1-MIN/MAX；
V=MAX/255；
When G＜B,
H=360-（Max-R+G-Min+B-Min）/（Max-Min）×60；
S=1-MIN/MAX；
V=MAX/255。
Further, the described adjusted wallpaper brightness of step 4 is among tone H ˊ, saturation degree S ˊ and the brightness V ˊ,
Surround lighting is to the addition coefficient β of wallpaper brightness, and addition coefficient β is for form with the display screen material as required;
The soft coefficient ￡ of the brightness of wallpaper ,-1 < ￡ < 1;
The addition parameter of color harmony saturation degree is respectively φ 、 € 1 < φ < 1 ,-1 〈 €< 1;
The soft parameter of color harmony saturation degree is respectively ξ, ψ, and-1 < ξ < 1 ,-1 < ψ < 1;
The brightness of adjusted wallpaper image;
Hˊ?=(H?+?φ?*?H_env)?*?ξ；
Sˊ?=(S?+?€?*?S_env)?*?ψ；
Vˊ?=(V?+?β?*?V_env)*?￡；
The error coefficient of tone H ˊ, saturation degree S ˊ and brightness V ˊ and ambient light intensity is less than 0.2.
Further, among the described adjusted wallpaper pixel R ˊ of step 5, G ˊ, the B ˊ,
MAX=Vˊ×?255=255Vˊ
If MAX=MIN is explained in S ˊ=0, represent gray color this moment
Rˊ=MAX；
Gˊ=MAX；
Bˊ=MAX；
If S ˊ>0, then make ρ=MAX-MIN=255S ˊ V ˊ, MIN=MAX-ρ;
If H ˊ>180, make H_=360-H ˊ; Otherwise, make H_=H ˊ;
Make λ=H_/60 * ρ,
R ˊ=2 ρ-λ; If R ˊ 0, R ˊ=0 then; If R ˊ>ρ, then R ˊ=ρ;
G ˊ=λ; If G ˊ>ρ, then G ˊ=ρ;
B ˊ=λ-2 ρ; If B ˊ < 0; B ˊ=0 then;
If H ˊ>180, then exchange the value of G ˊ and B ˊ component; Otherwise, do not exchange; At last
Rˊ=Rˊ+MIN
Gˊ=Gˊ+MIN
Bˊ=Bˊ+MIN
So far, new pixel RGB after soft is respectively
Rˊ
Gˊ
Bˊ
Mix according to the rgb value after soft, generate new pixel, thereby constitute wallpaper soft relatively under the new light intensity.
Further, described terminal device is mobile phone, computing machine, MP3 player, MP4 player or E-book reader.
Further, described display screen is touch-screen or liquid crystal display.
Compared with prior art, the invention has the beneficial effects as follows: through the brightness of display screen identification current environment; The demonstration of the said display screen wallpaper of control adjustment its brightness is melted with extraneous light mutually, and just adjust the brightness of wallpaper, and font brightness is constant, can guarantee visual effect preferably.
Description of drawings
Fig. 1 is a method flow diagram of the present invention.
Embodiment
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that technical characterictic of the present invention and advantage are carried out more deep annotation.
Method flow diagram of the present invention is as shown in Figure 1, the autocontrol method of a kind of display screen wallpaper brightness, and its step is following:
Step 1, terminal device are obtained the information of surrounding environment light intensity through sensor, comprise tone H_env, saturation degree S_env and brightness V_env;
Step 2, the pixel of wallpaper is analyzed, comprised three color values of RGB;
Step 3, according to three color values of RGB of the pixel of wallpaper, calculate tone H, saturation degree S and the brightness V of wallpaper image;
Step 4, according to the brightness of ambient light intensity adjustment wallpaper, adjusted wallpaper brightness is tone H ˊ, saturation degree S ˊ and brightness V ˊ;
Step 5, according to wallpaper brightness adjustment wallpaper pixel, adjusted wallpaper pixel R ˊ, G ˊ, B ˊ are merged with ambient light intensity mutually;
Step 6, generate wallpaper according to adjusted wallpaper pixel;
Wallpaper after step 7, demonstration are merged, and keep the display screen display font constant, return step 1.
Further, among the tone H of the described wallpaper image of step 3, saturation degree S and the brightness V, make that MAX is the maximal value of R, G, three components of B; MIN is the minimum value of three components;
If MAX=MIN, then
H=0；
S=0；
V=MAX/255；
If MAX ≠ MIN
When G >=B,
H=（Max-R+G-Min+B-Min）/（Max-Min）×60；
S=1-MIN/MAX；
V=MAX/255；
When G＜B,
H=360-（Max-R+G-Min+B-Min）/（Max-Min）×60；
S=1-MIN/MAX；
V=MAX/255。
Further, the described adjusted wallpaper brightness of step 4 is among tone H ˊ, saturation degree S ˊ and the brightness V ˊ,
Surround lighting is to the addition coefficient β of wallpaper brightness, and addition coefficient β is for form with the display screen material as required;
The soft coefficient ￡ of the brightness of wallpaper ,-1 < ￡ < 1;
The addition parameter of color harmony saturation degree is respectively φ 、 € 1 < φ < 1 ,-1 〈 €< 1;
The soft parameter of color harmony saturation degree is respectively ξ, ψ, and-1 < ξ < 1 ,-1 < ψ < 1;
The brightness of adjusted wallpaper image;
Hˊ?=(H?+?φ?*?H_env)?*?ξ；
Sˊ?=(S?+?€?*?S_env)?*?ψ；
Vˊ?=(V?+?β?*?V_env)*?￡；
The error coefficient of tone H ˊ, saturation degree S ˊ and brightness V ˊ and ambient light intensity is less than 0.2.
Further, among the described adjusted wallpaper pixel R ˊ of step 5, G ˊ, the B ˊ,
MAX=Vˊ×?255=255Vˊ
If MAX=MIN is explained in S ˊ=0, represent gray color this moment
Rˊ=MAX；
Gˊ=MAX；
Bˊ=MAX；
If S ˊ>0, then make ρ=MAX-MIN=255S ˊ V ˊ, MIN=MAX-ρ;
If H ˊ>180, make H_=360-H ˊ; Otherwise, make H_=H ˊ;
Make λ=H_/60 * ρ,
R ˊ=2 ρ-λ; If R ˊ 0, R ˊ=0 then; If R ˊ>ρ, then R ˊ=ρ;
G ˊ=λ; If G ˊ>ρ, then G ˊ=ρ;
B ˊ=λ-2 ρ; If B ˊ < 0; B ˊ=0 then;
If H ˊ>180, then exchange the value of G ˊ and B ˊ component; Otherwise, do not exchange; At last
Rˊ=Rˊ+MIN
Gˊ=Gˊ+MIN
Bˊ=Bˊ+MIN
So far, new pixel RGB after soft only is respectively
Rˊ
Gˊ
Bˊ
Mix according to the rgb value after soft, generate new pixel, thereby constitute wallpaper soft relatively under the new light intensity.
Described terminal device is mobile phone, computing machine, MP3 player, MP4 player or E-book reader.
Described display screen is touch-screen or liquid crystal display.
According to method provided by the invention, after this method also is included in the light change, can its brightness and environment picture be merged, but be not limited to the adjustment pixel according to current light intensity adjustment wallpaper pixel.Method of adjustment user can also select to change picture, is X such as current brightness, and the brightness picture of its index correspondence is to reach same effect.The present invention can be applied to other handheld terminals, like equipment or computer screens such as multimedia player MP4, mobile internet device MID.The present invention can make the brightness of wallpaper and environmental facies merge to a great extent, avoids user's visual error, can give the unlimited fine experience of user simultaneously.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For one of ordinary skill in the art of the present invention, under the prerequisite that does not break away from the present invention's design, make simple change or optimization, all should be regarded as protection scope of the present invention.
Claims (6)
1. the autocontrol method of display screen wallpaper brightness, its step is following:
Step 1, terminal device are obtained the information of surrounding environment light intensity through sensor, comprise tone H_env, saturation degree S_env and brightness V_env;
Step 2, the pixel of wallpaper is analyzed, comprised three color values of RGB;
Step 3, according to three color values of RGB of the pixel of wallpaper, calculate tone H, saturation degree S and the brightness V of wallpaper image;
Step 4, according to the brightness of ambient light intensity adjustment wallpaper, adjusted wallpaper brightness is tone H ˊ, saturation degree S ˊ and brightness V ˊ;
Step 5, according to wallpaper brightness adjustment wallpaper pixel, adjusted wallpaper pixel R ˊ, G ˊ, B ˊ are merged with ambient light intensity mutually;
Step 6, generate wallpaper according to adjusted wallpaper pixel;
Wallpaper after step 7, demonstration are merged, and keep the display screen display font constant, return step 1.
2. the autocontrol method of display screen wallpaper according to claim 1 brightness is characterized in that: among the tone H of the described wallpaper image of step 3, saturation degree S and the brightness V, make that MAX is the maximal value of R, G, three components of B; MIN is the minimum value of three components;
If MAX=MIN, then
H=0；
S=0；
V=MAX/255；
If MAX ≠ MIN
When G >=B,
H=（Max-R+G-Min+B-Min）/（Max-Min）×60；
S=1-MIN/MAX；
V=MAX/255；
When G＜B,
H=360-（Max-R+G-Min+B-Min）/（Max-Min）×60；
S=1-MIN/MAX；
V=MAX/255。
3. the autocontrol method of display screen wallpaper according to claim 2 brightness is characterized in that: the described adjusted wallpaper brightness of step 4 is among tone H ˊ, saturation degree S ˊ and the brightness V ˊ,
Surround lighting is to the addition coefficient β of wallpaper brightness, and addition coefficient β is for form with the display screen material as required;
The soft coefficient ￡ of the brightness of wallpaper ,-1 < ￡ < 1;
The addition parameter of color harmony saturation degree is respectively φ 、 € 1 < φ < 1 ,-1 〈 €< 1;
The soft parameter of color harmony saturation degree is respectively ξ, ψ, and-1 < ξ < 1 ,-1 < ψ < 1;
The brightness of adjusted wallpaper image;
Hˊ?=(H?+?φ?*?H_env)?*?ξ；
Sˊ?=(S?+?€?*?S_env)?*?ψ；
Vˊ?=(V?+?β?*?V_env)*?￡；
The error coefficient of tone H ˊ, saturation degree S ˊ and brightness V ˊ and ambient light intensity is less than 0.2.
4. the autocontrol method of display screen wallpaper according to claim 3 brightness is characterized in that: among the described adjusted wallpaper pixel R ˊ of step 5, G ˊ, the B ˊ,
MAX=Vˊ×?255=255Vˊ
If MAX=MIN is explained in S ˊ=0, represent gray color this moment
Rˊ=MAX；
Gˊ=MAX；
Bˊ=MAX；
If S ˊ>0, then make ρ=MAX-MIN=255S ˊ V ˊ, MIN=MAX-ρ;
If H ˊ>180, make H_=360-H ˊ; Otherwise, make H_=H ˊ;
Make λ=H_/60 * ρ,
R ˊ=2 ρ-λ; If R ˊ 0, R ˊ=0 then; If R ˊ>ρ, then R ˊ=ρ;
G ˊ=λ; If G ˊ>ρ, then G ˊ=ρ;
B ˊ=λ-2 ρ; If B ˊ < 0; B ˊ=0 then;
If H ˊ>180, then exchange the value of G ˊ and B ˊ component; Otherwise, do not exchange; At last
Rˊ=Rˊ+MIN
Gˊ=Gˊ+MIN
Bˊ=Bˊ+MIN
So far, new pixel RGB after soft is respectively
Rˊ
Gˊ
Bˊ
Mix according to the rgb value after soft, generate new pixel, thereby constitute wallpaper soft relatively under the new light intensity.
5. the autocontrol method of display screen wallpaper according to claim 4 brightness is characterized in that: described terminal device is mobile phone, computing machine, MP3 player, MP4 player or E-book reader.
6. the autocontrol method of display screen wallpaper according to claim 5 brightness is characterized in that: described display screen is touch-screen or liquid crystal display.
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| CN106856542A (en) * | 2016-12-27 | 2017-06-16 | 努比亚技术有限公司 | The method and device of Icon Color is automatically adjusted according to wallpaper color |
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| CN109947230A (en) * | 2019-03-29 | 2019-06-28 | 广东小天才科技有限公司 | A kind of screen luminance adjustment method of terminal device, device and terminal device |
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| CN114242023A (en) * | 2021-12-30 | 2022-03-25 | 维沃移动通信有限公司 | Display screen brightness adjusting method, display screen brightness adjusting device and electronic equipment |
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