CN111613168A - Image display processing method and device and computer readable storage medium - Google Patents
Image display processing method and device and computer readable storage medium Download PDFInfo
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The invention discloses an image display processing method, an image display processing device and a computer readable storage medium, wherein the image display processing method comprises the following steps: acquiring a specific picture to be processed; determining a first brightness value for representing the average brightness of the current specific picture to be processed according to the obtained specific picture to be processed; and setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value. The picture to be processed is adjusted to the comfortable second brightness value from the first brightness value, the situation that the picture is greatly lightened or darkened when the picture is switched is avoided, damage to eyes is reduced, and user experience is improved.
Description
Technical Field
The present invention relates to the field of image processing, and in particular, to an image display processing method and apparatus, and a computer-readable storage medium.
Background
Various interface environment themes (such as a dark theme, a soft theme and the like) are set in an operating system of the current electronic equipment (such as a mobile phone, a tablet and the like), but when a user uses the electronic equipment such as the mobile phone, the tablet and the like, the interface environment theme of the operating system is not supported by some software, or other reasons cause that the picture of the user is greatly lightened or darkened when the picture is switched, which causes discomfort to eyes of the user and reduces the use experience of the user.
Disclosure of Invention
The embodiment of the invention provides an image display processing method, an image display processing device and a computer readable storage medium, wherein the image brightness is adjusted to a comfortable brightness value according to the current image brightness, so that the damage to eyes is reduced, and the user experience is improved.
One aspect of the present invention provides an image display processing method, including: acquiring a specific picture to be processed; determining a first brightness value for representing the average brightness of the current specific picture to be processed according to the obtained specific picture to be processed; and setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value.
In an embodiment, the acquiring the specific to-be-processed frame includes: selecting a part of area from a picture to be processed; and taking the picture in the selected partial area as a specific picture to be processed.
In an embodiment, the setting the brightness value of the current specific to-be-processed picture to be the second brightness value includes: acquiring the position information of the partial area in the picture to be processed; inputting the second brightness value and the acquired position information into a screen driving board, and instructing the screen driving board to set the brightness value of the partial region to the second brightness value according to the position information.
In an embodiment, the color mode of the specific to-be-processed frame is an RGB mode; the obtaining, according to the obtained specific to-be-processed picture, a first brightness value used for representing the brightness of the current specific to-be-processed picture includes: converting the RGB mode into a YUV mode or an HSV mode by using a color gamut conversion formula; and calculating the brightness in the YUV color domain or the average value of the brightness in the HSV color domain, and taking the calculated average value as a first brightness value for representing the brightness of the specific current picture to be processed.
In an embodiment, the setting, based on the determined first luminance value, the luminance value of the current specific to-be-processed picture to be a second luminance value includes: the following formula is utilized: (first luminance value/(256/adjustment order)) ((expected highest luminance-expected lowest luminance)/(adjustment order-1)), determining a second luminance value; and setting the brightness value of the current specific picture to be processed as the second brightness value.
In an embodiment, before setting the brightness value of the specific currently to-be-processed picture to the second brightness value, the method further includes: judging whether the difference between the second brightness value and a target brightness value is within a set range, wherein the target brightness value is obtained by subtracting the second brightness value from the expected highest brightness; and if the difference between the second brightness value and the target brightness value is not within the set range, adjusting the second brightness value to enable the difference between the adjusted second brightness value and the target brightness value to be within the set range.
In an embodiment, before setting the brightness value of the specific currently to-be-processed picture to the second brightness value, the method further includes: judging whether the second brightness value is consistent with the first brightness value or not; and if the second brightness value is not consistent with the first brightness value, setting the brightness value of the current specific picture to be processed as the second brightness value.
In an embodiment, after setting the brightness value of the specific currently to-be-processed picture to be the second brightness value, the method further includes: after delaying the set time interval, continuously judging whether the difference between the second brightness value corresponding to the next frame of the specific picture to be processed and the target brightness value is within the set range.
Another aspect of the embodiments of the present invention provides an image display processing apparatus, including: the image acquisition module is used for acquiring a specific image to be processed; the first brightness value generation module is used for determining a first brightness value used for representing the average brightness of the current specific picture to be processed according to the obtained specific picture to be processed; and the second brightness value setting module is used for setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value.
Another aspect of the present invention provides a computer-readable storage medium, which includes a set of computer-executable instructions, when executed, for performing any one of the image display processing methods described above.
In the embodiment of the invention, the picture to be processed is adjusted from the first brightness value to the comfortable second brightness value, so that the situation that the picture is greatly lightened or darkened during picture switching is avoided, the damage to eyes is reduced, and the user experience is further improved.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
FIG. 1 is a schematic view illustrating an implementation flow of an image display processing method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an image display processing apparatus according to an embodiment of the invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart illustrating an implementation of an image display processing method according to an embodiment of the present invention.
As shown in fig. 1, an aspect of the present invention provides an image display processing method, including:
and 103, setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value.
In this embodiment, a specific to-be-processed picture is first obtained, where the image includes a still image and a video image, and the to-be-processed picture specifically includes a current frame display picture currently displayed on the display screen and a plurality of frames of to-be-displayed pictures that are not yet displayed.
Then, according to the obtained specific picture to be processed, determining a first brightness value for representing the average brightness of the current specific picture to be processed; the current specific to-be-processed picture is specifically a current frame picture currently displayed on the display screen, and may also be one of the frames of the multiple frames of to-be-displayed pictures.
And finally, setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value, wherein the second brightness value is a comfortable brightness value compared with the first brightness value, and the second brightness can be brighter or darker relative to the first brightness.
Therefore, the picture to be processed is adjusted to the comfortable second brightness value from the first brightness value, the situation that the picture is greatly lightened or darkened when the picture is switched is avoided, damage to eyes is reduced, and user experience is improved.
The method can be applied to scenes for switching static pictures by using the electronic equipment, so that the brightness can be adjusted when some software which does not support the system environment theme is switched.
The method can also be applied to scenes for playing videos by using electronic equipment, and the brightness of the video picture can be adjusted to be proper if the brightness of the video playing content is too high or too low.
In an embodiment, acquiring a specific to-be-processed frame includes:
selecting a part of area from a picture to be processed;
and taking the picture in the selected partial area as a specific picture to be processed.
In this embodiment, the specific process of step 101 is as follows:
the method includes selecting a partial area from a to-be-processed picture, wherein the to-be-processed picture is a whole picture, and the selection mode can traverse an average brightness value of each partial area in the whole to-be-processed picture and select a partial area with an average brightness value exceeding or lower than a set threshold from the to-be-processed picture.
The pictures in the selected partial area are then taken as the specific pictures to be processed.
In an embodiment, the setting the brightness value of the current specific to-be-processed picture to be the second brightness value includes:
acquiring position information of a partial area in a picture to be processed;
inputting the second brightness value and the acquired position information to the screen driving board, and instructing the screen driving board to set the brightness value of the partial region to the second brightness value according to the position information.
In this embodiment, the specific process of step 102 is:
and acquiring the position information of the partial area in the picture to be processed, wherein the position information comprises the specific coordinate position and the length and the width of the partial area.
And inputting the second brightness value and the acquired position information into a screen driving board, adjusting the brightness value of a partial area to the second brightness value by means of the screen driving board according to the position information, wherein the screen driving board is used for converting the data signal into an LVDS (Low Voltage Differential Signaling) signal capable of driving the display screen, and then sending the LVDS signal to an LVDS receiving chip of the display screen.
In one embodiment, the color mode of the specific to-be-processed frame is an RGB mode;
obtaining a first brightness value used for representing the brightness of the current specific picture to be processed according to the obtained specific picture to be processed, wherein the first brightness value comprises the following steps:
converting the RGB mode into a YUV mode or an HSV mode by using a color gamut conversion formula;
and calculating the brightness in the YUV color domain or the average value of the brightness in the HSV color domain, and taking the calculated average value as a first brightness value for representing the brightness of the current specific picture to be processed.
In this embodiment, the image in this embodiment is mainly used for being displayed on a display screen, and thus, the color mode of the specific image to be processed is mainly an RGB mode, where R represents Red (Red), G represents Green (Green), B represents Blue (Blue), and the value range of R, G, B is 0 to 255.
The specific process of step 102 is:
converting the RGB mode into a YUV mode or an HSV mode by using a color gamut conversion formula; the YUV mode includes three components, "Y" represents brightness (Luma), that is, a gray value; "U" and "V" denote Chroma (Chroma) which describes the color and saturation of an image and is used to specify the color of a pixel. Like RGB, YUV is also a color coding method, mainly used in the field of television systems and analog video.
The color gamut conversion formula for converting RGB to YUV is as follows:
Y＝0.299R+0.587G+0.114B；
U＝-0.147R-0.289G+0.436B；
V＝0.615R-0.515G-0.100B；
HSV color mode is a color space based on the intuitive nature of color, also known as the hexagonal pyramid model, where H, S, V represents Hue (Hue), Saturation (Saturation), and Value (Value), respectively.
The gamut conversion formula for RGB to HSV is:
let (r, g, b) be the red, green and blue coordinates of a color, respectively, whose values are real numbers between 0 and 1;
setting max equal to the maximum of r, g and b;
setting min equal to the minimum of r, g and b;
if(R＝max)，H＝(G-B)/(max-min)*60；
if(G＝max)，H＝120+(B-R)/(max-min)*60；
if(B＝max)，H＝240+(R-G)/(max-min)*60；
if(H<0)，H＝H+360；
S＝(max-min)/max；
V＝max(R,G,B)。
and then calculating the brightness Y in the YUV color gamut or the average value of the brightness V in the HSV color gamut, and taking the calculated average value as a first brightness value for representing the brightness of the current specific picture to be processed.
In an embodiment, the setting the brightness value of the current specific to-be-processed picture to the second brightness value based on the determined first brightness value includes:
the following formula is utilized:
(first luminance value/(256/adjustment order)) ((expected highest luminance-expected lowest luminance)/(adjustment order-1)), determining a second luminance value;
and setting the brightness value of the current specific picture to be processed as a second brightness value.
In this embodiment, step 102 further specifically includes:
determining the second brightness value by (the first brightness value/(256/adjustment order)) ((expected highest brightness-expected lowest brightness)/(adjustment order-1)), wherein the adjustment order is a numerical value which can be adjusted in advance according to the application; the expected maximum brightness and the expected minimum brightness are both fixed values.
The specific acquisition procedure for the expected maximum brightness is: outputting a picture with a brightness value lower than 30 on a display screen in advance, so that a user can adjust the brightness independently, and the maximum brightness which makes the user feel most comfortable is taken as the expected maximum brightness;
the specific acquisition procedure for the expected minimum brightness is: outputting a picture with the brightness value higher than 240 on the display screen in advance, so that the user can adjust the brightness independently, and taking the lowest brightness which is most comfortable for the user to see as the expected lowest brightness.
And then setting the brightness value of the current specific picture to be processed as a second brightness value.
In an embodiment, before setting the brightness value of the current specific to-be-processed picture to the second brightness value, the method further includes:
judging whether the difference between the second brightness value and the target brightness value is within a set range, wherein the target brightness value is the expected highest brightness minus the second brightness value;
and if the difference between the second brightness value and the target brightness value is not within the set range, adjusting the second brightness value to enable the difference between the adjusted second brightness value and the target brightness value to be within the set range.
In this embodiment, since the second luminance value obtained in the above step may not be the optimal luminance value, luminance optimization needs to be further performed on the luminance value, and the process is as follows:
and judging whether the difference between the second brightness value and the target brightness value is within a set range, wherein the target brightness value is obtained by subtracting the second brightness value from the expected highest brightness, and the set range is a fixed range and needs to be preset in advance.
If the difference between the second brightness value and the target brightness value is not within the set range, the specific situation includes that the second brightness value is higher than the target brightness value by a certain value, or the target brightness value is higher than the second brightness value by a certain value; the second brightness value is adjusted to make the difference between the adjusted second brightness value and the target brightness value within the set range, and the adjustment method may be to add or subtract a certain value in a cycle to make the difference between the two values within the set range.
In an embodiment, before setting the brightness value of the current specific to-be-processed picture to the second brightness value, the method further includes:
judging whether the second brightness value is consistent with the first brightness value;
if the second brightness value is not consistent with the first brightness value, the brightness value of the current specific picture to be processed is set as the second brightness value.
In this embodiment, before setting the brightness value of the current specific to-be-processed picture as the second brightness value, further determining whether the second brightness value is consistent with the first brightness value, if it is determined that the second brightness value is inconsistent with the first brightness value, which indicates that the brightness value of the current picture needs to be adjusted, setting the brightness value of the current specific to-be-processed picture as the second brightness value; if the second brightness value is consistent with the first brightness value, the brightness adjustment of the current picture to be processed is not needed, and the next frame picture can be directly processed, so that the calculation amount is reduced, and the efficiency is improved.
In an embodiment, after setting the brightness value of the current specific to-be-processed picture to the second brightness value, the method further includes:
after delaying the set time interval, continuously judging whether the difference between the second brightness value corresponding to the next frame of the specific picture to be processed and the target brightness value is within the set range.
In this embodiment, after setting the brightness value of the current specific to-be-processed picture as the second brightness value, it is determined whether the difference between the second brightness value corresponding to the next frame of specific to-be-processed picture and the target brightness value is within the set range after waiting for the set time interval, where the set time interval is preferably 30 ms. The main function is to make the picture change smoothly when adjusting the brightness, and people will not feel a little sudden because of the too fast adjusting speed.
Fig. 2 is a schematic structural diagram of an image display processing apparatus according to an embodiment of the invention.
As shown in fig. 2, another embodiment of the present invention provides an image display processing apparatus, including:
a picture acquiring module 201, configured to acquire a specific picture to be processed;
a first brightness value generation module 202, configured to determine, according to the obtained specific to-be-processed picture, a first brightness value used for representing an average brightness of the current specific to-be-processed picture;
a second brightness value setting module 203, configured to set a brightness value of the current specific to-be-processed picture as a second brightness value based on the determined first brightness value.
In this embodiment, a specific to-be-processed picture is first obtained by the picture obtaining module 201, where the image includes a still image and a video image, and the to-be-processed picture specifically includes a current frame display picture currently displayed on the display screen and a plurality of frames of to-be-displayed pictures not yet displayed.
Then, a first brightness value for representing the average brightness of the current specific image to be processed is determined by the first brightness value generation module 202 according to the obtained specific image to be processed; the current specific to-be-processed picture is specifically a current frame picture currently displayed on the display screen, and may also be one of the frames of the multiple frames of to-be-displayed pictures.
Finally, the second brightness value setting module 203 sets the brightness value of the current specific to-be-processed picture to be a second brightness value based on the determined first brightness value, where the second brightness value is a comfortable brightness value compared with the first brightness value, and the second brightness value may be brighter or darker relative to the first brightness value.
Therefore, the picture to be processed is adjusted to the comfortable second brightness value from the first brightness value, the situation that the picture is greatly lightened or darkened when the picture is switched is avoided, damage to eyes is reduced, and user experience is improved.
Another aspect of the present invention provides a computer-readable storage medium, which includes a set of computer-executable instructions, when executed, for performing any one of the image display processing methods described above.
In embodiments of the present invention, a computer-readable storage medium comprises a set of computer-executable instructions, which when executed, are configured to obtain a particular to-be-processed frame; determining a first brightness value for representing the average brightness of the current specific picture to be processed according to the obtained specific picture to be processed; and setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value.
Therefore, the picture to be processed is adjusted to the comfortable second brightness value from the first brightness value, the situation that the picture is greatly lightened or darkened when the picture is switched is avoided, damage to eyes is reduced, and user experience is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An image display processing method, comprising:
acquiring a specific picture to be processed;
determining a first brightness value for representing the average brightness of the current specific picture to be processed according to the obtained specific picture to be processed;
and setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value.
2. The method according to claim 1, wherein the obtaining the specific to-be-processed picture comprises:
selecting a part of area from a picture to be processed;
and taking the picture in the selected partial area as a specific picture to be processed.
3. The method according to claim 2, wherein said setting the brightness value of the current specific picture to be processed to the second brightness value comprises:
acquiring the position information of the partial area in the picture to be processed;
inputting the second brightness value and the acquired position information into a screen driving board, and instructing the screen driving board to set the brightness value of the partial region to the second brightness value according to the position information.
4. The method according to claim 1, wherein the color mode of the specific to-be-processed picture is an RGB mode;
the obtaining, according to the obtained specific to-be-processed picture, a first brightness value used for representing the brightness of the current specific to-be-processed picture includes:
converting the RGB mode into a YUV mode or an HSV mode by using a color gamut conversion formula;
and calculating the brightness in the YUV color domain or the average value of the brightness in the HSV color domain, and taking the calculated average value as a first brightness value for representing the brightness of the specific current picture to be processed.
5. The method according to claim 1, wherein the setting the brightness value of the current specific picture to be processed to a second brightness value based on the determined first brightness value comprises:
the following formula is utilized:
(first luminance value/(256/adjustment order)) ((expected highest luminance-expected lowest luminance)/(adjustment order-1)), determining a second luminance value;
and setting the brightness value of the current specific picture to be processed as the second brightness value.
6. The method according to claim 5, wherein before setting the luminance value of the specific currently to-be-processed picture to the second luminance value, the method further comprises:
judging whether the difference between the second brightness value and a target brightness value is within a set range, wherein the target brightness value is obtained by subtracting the second brightness value from the expected highest brightness;
and if the difference between the second brightness value and the target brightness value is not within the set range, adjusting the second brightness value to enable the difference between the adjusted second brightness value and the target brightness value to be within the set range.
7. The method according to claim 5, wherein before setting the luminance value of the specific currently to-be-processed picture to the second luminance value, the method further comprises:
judging whether the second brightness value is consistent with the first brightness value or not;
and if the second brightness value is not consistent with the first brightness value, setting the brightness value of the current specific picture to be processed as the second brightness value.
8. The method according to claim 5, wherein after setting the luminance value of the specific currently to-be-processed picture to the second luminance value, the method further comprises:
after delaying the set time interval, continuously judging whether the difference between the second brightness value corresponding to the next frame of the specific picture to be processed and the target brightness value is within the set range.
9. An image display processing apparatus, comprising:
the image acquisition module is used for acquiring a specific image to be processed;
the first brightness value generation module is used for determining a first brightness value used for representing the average brightness of the current specific picture to be processed according to the obtained specific picture to be processed;
and the second brightness value setting module is used for setting the brightness value of the current specific picture to be processed as a second brightness value based on the determined first brightness value.
10. A computer-readable storage medium comprising a set of computer-executable instructions that, when executed, perform the method of any one of claims 1-8.
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| CN106710570A (en) * | 2016-12-05 | 2017-05-24 | 乐视控股（北京）有限公司 | Interface brightness adjusting method, interface brightness adjusting device, and equipment |
| CN107610669A (en) * | 2017-10-30 | 2018-01-19 | 青岛海信电器股份有限公司 | Image gray-scale level luminance compensation method and device |
| CN108962134A (en) * | 2018-07-25 | 2018-12-07 | Oppo广东移动通信有限公司 | Control method, control device, electronic device, storage medium and computer equipment |
| CN110379364A (en) * | 2019-07-16 | 2019-10-25 | 北京集创北方科技股份有限公司 | Brightness adjusting method, device and chip based on display driving |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113064682A (en) * | 2021-03-11 | 2021-07-02 | 浙江大华技术股份有限公司 | Picture display method and device of display equipment and display equipment |
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