CN109859283B - Color taking method, color taking device, electronic equipment and storable medium - Google Patents
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Abstract
The embodiment of the application relates to the field of image processing and discloses a color taking method, a color taking device, electronic equipment and a storable medium. The color taking method comprises the following steps: color is taken from the object to be color-taken; determining a parameter value of the color, wherein the parameter value at least comprises a brightness value; adjusting the parameter value of the color, wherein the adjusted parameter value accords with a preset condition; the color obtained after the parameter value is adjusted is used as the background color of the document. According to the color taking method, the color taking device, the electronic equipment and the storage medium, when the color is selected, the color similar to the color of the document is avoided, so that the document can be clearly displayed.
Description
Technical Field
The embodiment of the application relates to the field of image processing, in particular to a color taking method, a color taking device, electronic equipment and a storable medium.
Background
Color extraction is also known as color selection, and has been widely used in the field of image processing. In the prior art, color extractors are common screen color extraction tools. The screen color extractor can perform color selection on the content of any block in the screen; a picture color extractor is also provided for selecting the color of a picture. In the above product, the color extracted can be described by using a specific numerical theory, such as a three primary color mode, and expressed in english as R (red), G (green), B (blue), and the color of the web page is expressed in a 16-system code, generally in the format of #defbc (letters range from a to F, and numerals from 0 to 9), such as black, and is described in the web page code as: #000000.
Disclosure of Invention
An object of some embodiments of the present application is to provide a color extracting method, a color extracting device, an electronic device, and a storable medium, which can avoid extracting a color similar to a document color when selecting the color, thereby improving the clarity of the document display.
Some embodiments of the present application provide a color extraction method, including: color is taken from the object to be color-taken; determining a parameter value of the color, wherein the parameter value at least comprises a brightness value; adjusting the parameter value of the color, wherein the adjusted parameter value accords with a preset condition; the color obtained after the parameter value is adjusted is used as the background color of the document.
Some embodiments of the present application further provide a color extraction device, including: the color taking module is used for taking color from the object to be color-taken; an analysis module for determining parameter values of the color taken, wherein the parameter values include at least brightness values; the adjusting module is used for adjusting the parameter value of the color, and the adjusted parameter value accords with a preset condition; and the output module is used for taking the color obtained after the parameter value is adjusted as the background color of the document.
Some embodiments of the present application further provide an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a color extraction method as described above.
Some embodiments of the present application also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements a color extraction method as described above.
According to the partial embodiments of the application, the color taken from the object to be colored is changed by adjusting the parameter value of the taken color and enabling the adjusted brightness value to meet the preset condition, so that the visual difference between the taken color and the color of the document is caused. Therefore, when the color is applied to the background, the color can be compared with the text to ensure that the content of the text is more clearly presented, and the possibility that the text cannot be seen clearly due to the similar color is reduced. The inventor finds that, because the parameter value of the color is adjusted simply and quickly, the effect after adjustment is good, the problem that a document cannot be seen clearly due to the fact that similar colors are taken can be simply and quickly solved by adopting the parameter value for adjustment, and the color taking method, the color taking device, the electronic equipment and the storable medium are simple and accurate when being implemented, good in compatibility and easy to popularize in the embodiment of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings.
Fig. 1 is a flowchart of a color extraction method according to a first embodiment of the present application;
FIG. 2 is a flow chart of a color extraction method according to a second embodiment of the present application;
FIG. 3a is a schematic view showing the effect of obtaining color as background color of a document carrier according to the conventional color extraction method in the first embodiment of the present application;
FIG. 3b is a schematic view showing the effect of color acquisition as background color of the document carrier according to the color acquisition method of the first embodiment of the present application;
FIG. 4a is a schematic view showing another embodiment of the present application for obtaining color as background color of a document carrier according to the conventional color-obtaining method;
FIG. 4b is a schematic view showing the effect of obtaining color as background color of the document carrier according to another color-extracting method in the first embodiment of the present application;
fig. 5 is a block diagram of a color extracting device according to a seventh embodiment of the present application;
fig. 6 is a block diagram of a color extracting device according to an eighth embodiment of the present application;
fig. 7 is a schematic structural view of an electronic device according to a twelfth embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of each embodiment of the present application will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
The first embodiment of the application relates to a color extraction method. The color taking method in the embodiment can be implemented based on electronic equipment, which can be a mobile phone, a computer, a tablet personal computer, an intelligent television and other terminals. The extracted color can be applied to different scenes, such as business applications of game centers, software stores, theme stores and the like, can also be applied to any application with pictures of a system, can also be applied to a document carrier as background color of the document, and can specifically comprise simple elements such as characters, lines, color blocks and the like, can also comprise changeable elements such as pictures and the like, and can be used as the document in the document carrier, so that the display content which needs to be presented to a user can be ensured, and the method is also considered by people.
The following details of implementation of the color extraction method of the present embodiment are specifically described, and the following details are provided for understanding only, and are not limiting to implement the present embodiment.
As shown in fig. 1, the color taking method specifically includes:
step 101, color is taken from the object to be color-taken.
Specifically, the current color-taking application program can be used for selecting the colors of the pictures, and technicians can further apply the selected colors according to the needs, such as commercial applications of game centers, software stores, theme stores and the like, and can also be applied to any application with the pictures of the system. The selected color can be used as the background color of the page and the background color of the picture, can also be used as the background color of the document carrier, can also be used as the background color of the button, and the like. In a word, the selected color can beautify the application page, can fill the blank area of the application, and can be used as a carrier of the page card design.
In this embodiment, how to determine which color is taken as the taken color in the picture specified by the user may be specifically determined according to the position of the pixel point clicked by the user, for example, the user clicks by using a mouse operation, or the user touches the display screen by using a gesture operation.
In this embodiment, another area analysis method may be used for color extraction, specifically: analyzing an object to be colored, and determining the color of the object to be colored and the area corresponding to the determined color; the color with the largest area is determined as the extracted color. In the present embodiment, the determination method of each color in the object to be color-extracted is not limited. The determining of the area corresponding to the color may specifically determine that the color is the extracted color according to the number of pixel points, if the number of pixel points corresponding to a certain color is the largest.
In practical application, the object to be color-extracted may have more than one color, and when the user clicks the picture with rich colors, the color extracted is based on the clicking position of the user, so that uncontrollable factors of the color extracted are larger. When the area analysis method is adopted, the colors included in the picture are fixed at a certain time, and the area corresponding to each color is fixed, so that the color with the largest area is necessarily fixed, the obtained color obtained by the area comparison method can ensure that the obtained color of the same picture is constant every time, and uncontrollable obtained color is avoided. In addition, the method is also suitable for scenes with single-color pictures, so that the method is wide in application and good in compatibility. It should be noted that, besides the area comparison method, other rules may be set according to actual requirements to perform color taking, so as to ensure that the color taken by the same picture is constant, which is not listed here.
In practical application, besides the above-mentioned scheme and area analysis method for color extraction according to the specified position of the user, the terminal can automatically determine the color extraction according to the preset rule, and the specific determined color extraction mode can be selected according to the actual requirement.
Step 102, determining the parameter value of the color.
Specifically, the parameter values include at least brightness values, more specifically, brightness values from three elements of color differences: brightness, hue, and saturation. Wherein, brightness represents brightness and darkness of the color; hue represents the physical light reflected on the object to the optic nerve of the human eye, the color of these different wavelengths of light; saturation, also referred to as chroma, refers to the degree of color in a color, and is typically calculated based on the degree of gray contained in the color. The chroma varies depending on the hue, and even the same hue, the chroma varies depending on the lightness.
In this embodiment, when determining the brightness value, the brightness value of the color to be taken may be determined by using a Hue Saturation Brightness (HSB) color taking mode, and detailed description of how to take the color by using the HSB color taking mode is omitted here.
And 103, adjusting the parameter value of the color.
Specifically, in the present embodiment, the brightness value of the color to be taken is adjusted, and the brightness value is generally expressed by a numerical value, and the larger the color, the higher the brightness, and the brighter the color to be developed. The range of brightness values commonly used in the prior art is [0, 100], the lower the brightness value is, the darker the developed color is, when the brightness value is 0, the developed color is black, the higher the brightness value is, the brighter the developed color is, when the brightness value is 100, the developed color is white.
Based on the definition of the above values, the color to be taken and the document color can be respectively represented by the values, the brightness value of the color to be taken is specifically adjusted to be the value of the brightness in the color to be taken, and the difference between the adjusted brightness value and the brightness value of the document color in this embodiment is greater than or equal to the first preset threshold.
After researching the color presentation and the change rule of each color parameter, the inventor finds that although any parameter adjustment can influence the presented color, the change of the brightness value can obviously reflect the contrast between the colors, and when the two colors with the contrast are respectively used as a text and a background, a viewer can more clearly see the text content, the text content can be enabled to quickly attract the sight of the viewer, and the purpose that the text content can be accurately transmitted to the viewer is achieved.
More specifically, the first preset threshold may be set empirically by a technician, and may be, for example, greater than or equal to 20, such as 30.
For example, if the brightness value of the color is 10 and the background color is 0 and the first preset threshold is 20, the brightness value of the color may be adjusted to be greater than or equal to the background color (0) +the first preset threshold (20), such as 30.
And 104, taking the color obtained after the parameter value is adjusted as the background color of the document.
Specifically, in this embodiment, the document may be located in a display area (may be a document carrier) associated with the object to be color-extracted, and in this step, the color extracted after the parameter value is adjusted may be filled into the display area as a background color of the document.
Here, taking the color taken as the color of the document carrier as an example, the effects that can be achieved by the color taking scheme in the present embodiment are illustrated:
(1) As shown in fig. 3a, when the color obtained according to the color-obtaining region is light and is close to white (the B value is 98), the obtained color cannot well display the content (i.e., the document) to be carried when the document color is white (the B value is 100), so that the document to be carried cannot be seen clearly. When the B value of the color is adjusted to 50, the display effect is shown in fig. 3B, so that the user can see the content of the carried text such as "VUE".
(2) As shown in fig. 4a, when the color of the document is black (B value is 0) and the color of the document is determined to be dark, the document to be carried cannot be displayed well, resulting in no visibility of the document. When the B value of the color is adjusted to 80, the display effect is shown in fig. 4B, so that the user can see the content of the carried text such as "VUE".
Therefore, in this embodiment, by changing the color of the object to be color-extracted, when the color is applied to the background, a certain contrast can be maintained between the object to be color-extracted and the document, so that the content of the document is more clearly presented, and the situation that the document cannot be seen due to the similar color is avoided. Specifically, when the color is adjusted, the brightness value of the color is adjusted, and a certain amount of difference is formed between the adjusted brightness value and the brightness value of the document color. The inventor of the application finds that whether two colors have contrast can be displayed simply and quickly by adopting the brightness value, so that the problem that a document cannot be seen clearly due to the fact that similar colors are taken can be simply and quickly solved by adopting the brightness value for adjustment, and the implementation mode of the method is simple and accurate, good in compatibility and easy to popularize. In addition, whether the contrast is displayed between the RGB values of different colors and the colors in the conventional common RGB color taking mode is not in a corresponding rule, so the inventor of the application develops a new way to adjust according to the HSB value of the colors, and particularly adjusts one parameter of the brightness value, so that the adjustment process is simple and quick, and the effect after adjustment is obvious.
It should be noted that, although the document carrier is taken as an example in the present embodiment, in practical application, the present embodiment may also be applied to other application scenarios requiring color extraction, which is not described herein.
A second embodiment of the present application relates to a color extraction method. The embodiment judges whether adjustment is needed according to the brightness value of the color and the brightness value of the document color, and executes the adjustment step when judging that adjustment is needed, so as to provide a changeable example, which is more suitable for practical application scenes.
As shown in fig. 2, a flowchart of the color extraction method in this embodiment is specifically as follows:
steps 201 and 202 are similar to steps 101 and 102 in the first embodiment, and will not be described here again.
Step 203, judging whether the brightness value of the color is required to be adjusted; if yes, go to step 204; if not, go to step 206.
Specifically, in this step, it is determined whether the brightness value of the color is required to be adjusted according to the brightness value of the color and the document color. Since the inventors found that the change in the brightness value can more significantly represent the contrast between colors, this step specifically uses the difference in brightness values to determine whether the color to be taken needs to be adjusted.
In this embodiment, a reference range is preset, and then, whether the brightness value of the color is required to be adjusted is determined according to the relation between the brightness value of the color and the preset reference range. The difference value between any value in the reference range and the brightness value of the document color is larger than or equal to a first preset threshold. The first preset threshold may be greater than or equal to 30, and the greater the first preset threshold, the greater the contrast between the reference range and the document color, the more prominent the document color may be.
More specifically, if the brightness value of the color is beyond the preset reference range, it is determined that adjustment is needed, so that the step 204 is continuously performed; if the brightness value of the color matches the preset reference range, it is determined that no adjustment is needed, and then step 206 is continued. Such as: the brightness value of the taken color is 100, and the preset reference range is 70-100, so that the taken color is judged to be unnecessary to adjust; another example is: the brightness value of the color is 100, but the preset reference range is 0-70, so that the color is judged to need to be adjusted.
Continuing to explain a preset reference range setting method, and when the document color is white, namely the document color is bright, setting the preset reference range to be larger than or equal to a first threshold value and smaller than or equal to a second threshold value, wherein the first threshold value is smaller than the second threshold value; in particular, the first threshold may be 10, or a value less than 10, such as 0, 3, 5, etc.; the second threshold may be 70, 30, 50, etc. When the document color is black, namely the document color is dark, the preset reference range is larger than or equal to a third threshold value and smaller than or equal to a fourth threshold value, wherein the third threshold value is smaller than the fourth threshold value; specifically, the third threshold may be 70, 80, 90, etc.; the fourth threshold may be 90, or a value greater than 90, such as 95, 99, 100, etc.
The following illustrates the default mode of the reference range:
if the brightness value of the document color is 100 and the first preset threshold is 30, the preset reference range can be 0-70, and it can be known that the difference between all the values in 0-70 and the brightness value of the document color is greater than or equal to 30. If the brightness value of the document color is 0 and the first preset threshold is 30, the preset reference range can be 70-100, and it can be known that the difference between all the values in 70-100 and the brightness value of the document color is greater than or equal to 30. Of course, in practical application, the first preset threshold can be further improved, so that the difference between the preset reference range and the document color is larger, and the contrast between the color taken after adjustment and the document color is larger, so that the document is more prominent.
Steps 204 and 205 are similar to steps 103 and 104 in the first embodiment, and will not be described here again.
Step 206, outputting the color.
Specifically, when the brightness value of the obtained color accords with the preset reference range, a large difference between the obtained color and the document color can be determined, and the document can be well presented, so that the obtained color does not need to be adjusted, and the obtained color can be directly output for the document carrier.
In this embodiment, whether adjustment is needed is determined according to the brightness value of the color and the brightness value of the document color, and when adjustment is determined to be needed, an adjustment step is performed, so as to better meet the requirements of the actual application scene. Meanwhile, whether adjustment is needed or not is judged according to a preset reference range, and the method is simple, convenient and accurate and has high operability.
A third embodiment of the present application relates to a color extraction method. The third embodiment is substantially the same as the second embodiment, and differs mainly in that: in the second embodiment, it is determined whether or not adjustment of the taken color is necessary according to the relationship between the brightness value of the taken color and a preset reference range. In the third embodiment of the present application, the brightness value of the color to be taken and the brightness value of the document color are directly compared, and whether adjustment is required is determined according to the comparison result, so that the color taking method in the present embodiment is simplified.
As shown in fig. 2 in the second embodiment, the flowchart of the color extraction method in the present embodiment is substantially the same as the second embodiment, and the main difference is in step 203, which is specifically described as follows:
in step 203 of the second embodiment, it is determined whether adjustment of the brightness value of the taken color is required by comparing the relationship between the brightness value of the taken color and a preset reference range;
In step 203 of the present embodiment, the brightness value of the color to be extracted is compared with the brightness value of the document color to determine whether or not adjustment of the brightness value of the color to be extracted is necessary.
Specifically, in the present embodiment, in the determining process, the brightness value of the color to be taken and the brightness value of the document color may be compared first, and then whether the brightness value of the color to be taken needs to be adjusted may be determined according to the comparison result. If the difference between the brightness value of the color and the brightness value of the document color is smaller than a first preset threshold, the adjustment is determined to be needed. Assuming that the first preset threshold is set to 30, it can be obtained that if the difference between the brightness value of the color taken and the brightness value of the document color is less than 30, it is determined that adjustment is required, and if it is greater than or equal to 30, it is determined that adjustment is not required.
Similarly, in this embodiment, the larger the value of the first preset threshold is, the more scenes need to be adjusted, the larger the difference between the color of the adjusted color and the color of the document is, and the more prominently the document is displayed.
Therefore, another practical adjustment judgment method is provided in the present embodiment, and the judgment method in the present embodiment is simpler and more direct, which is beneficial to simplifying the flow of the color extraction method and accelerating the actual execution speed of the color extraction method in the present embodiment.
The fourth embodiment of the present application also relates to a color taking method. The present embodiment is substantially the same as the first embodiment, and differs from the first embodiment mainly in that: in the first embodiment, the brightness value of the color is determined directly by using the HSB mode, but in this embodiment, the color is determined according to the three primary colors (RGB) color taking mode, and then the RGB value of the color is converted into the HSB value, so as to provide another changeable color taking method, and enrich the implementation manners of the present application.
Specifically, in the present embodiment, in determining the brightness value of the color to be taken, the trichromatic value of the color to be taken is determined by using the trichromatic color taking mode, and the trichromatic value is converted into the hue saturation brightness value, and the converted brightness value is used as the brightness value of the color to be taken.
Because the electronic equipment is generally subjected to color blending by three primary colors of RGB, so that the required colors are respectively displayed, the existing intelligent color taking mode is a common and universal color taking mode by utilizing an RGB mode. Therefore, the embodiment firstly uses the RGB mode to take colors, and then converts the RGB values of the taken colors into the HSB values, so that the RGB values can be better fused with the prior art, the RGB values are more compatible to be improved based on the prior art, and the popularization is stronger.
More specifically, the method of converting the RGB values of the color to HSB values may be converted using the following formula:
b＝max
wherein max is the maximum value of the RGB values, and min is the minimum value of the RGB values.
The above formula can be used to quickly and simply convert the RGB value of the color to the HSB value, wherein the B value in the HSB value is the brightness value of the color in the embodiment. The above-mentioned conversion between RGB values and HSB values is merely an example, and is not limited thereto in practical application.
Therefore, the implementation mode of the method is enriched, the method is better compatible with the prior art, and the method is directly improved on the basis of the prior art, so that the popularization is stronger.
A fifth embodiment of the present application relates to a color extraction method. According to the method, the target brightness value is determined based on the text color, and then the brightness value of the taken color is adjusted to the target brightness value, so that a feasible adjustment mode is provided, and an effective and feasible implementation scheme is provided for the taken color after the adjustment is output subsequently.
In the color extraction method of the present embodiment, as shown in fig. 1 in the first embodiment, in step 103, when the brightness value of the extracted color is adjusted, a specific manner of setting the target brightness value is adopted to adjust, and at the same time, direct adjustment to the target brightness value may be set.
For example, if the direct adjustment is set, in the process of adjusting the brightness value of the taken color, the brightness value of the taken color is directly adjusted to be a target brightness value, for example, if the brightness value of the taken color is 30 and the target brightness value is 70, the brightness value of the taken color is directly adjusted to be 70. When in direct adjustment, the adjustment process is simple and direct, and the adjustment speed is increased, so that the execution time of the color taking method in the embodiment is further shortened.
Further, continuing with the description of the setting of the target brightness value, the difference between the target brightness value and the brightness value of the document color is greater than or equal to a first predetermined threshold, which may be empirically set by a technician, such as greater than or equal to 30.
For example, if the lightness value of the document color is 100 and the first preset threshold is 30, the target lightness value may be any value between 0 and 70, further, for example, greater than or equal to 40 and less than or equal to 60; if the document color has a brightness value of 0 and the first preset threshold is 30, the target brightness value may be any value between 30 and 100, further, such as greater than or equal to 70 and less than or equal to 90.
Therefore, the present embodiment provides an effective and feasible adjustment method, and provides an effective and feasible implementation scheme for the color obtained after the subsequent output adjustment, so that the adjustment speed is increased as much as possible, and the execution time of the color obtaining method in the present embodiment is shortened.
In the present embodiment, the direct adjustment is described as an example, but in practical application, the adjustment may be performed in stages, and the number of times of adjustment is not limited.
A sixth embodiment of the present application relates to a color extraction method. The sixth embodiment is substantially the same as the fifth embodiment, and differs mainly in that: in the fifth embodiment, when the brightness value of the color is adjusted, the target brightness value is set first, and then the adjustment is performed based on the target brightness value, but in the embodiment, the adjustment is performed with a preset step length, the difference between the adjusted brightness value and the brightness value of the document color is greater than or equal to a first preset threshold, and another feasible adjustment method is provided, so that the adjustment process in the color taking method is flexible and changeable, and different adjustment methods can be selected according to the needs in practical application.
Specifically, in this embodiment, the brightness value of the color is adjusted, and the difference between the adjusted brightness value and the brightness value of the document color is greater than or equal to a first preset threshold, which specifically includes: and adjusting the brightness value of the color with a preset step length until the difference value between the adjusted brightness value and the brightness value of the document color is larger than or equal to a first preset threshold.
It can be found that the adjustment in the present embodiment is not limited by the target value, but a stepwise cyclic adjustment method is adopted, where the goal of the cyclic adjustment is that the difference between the brightness value after adjustment and the brightness value of the document color is greater than or equal to the first preset threshold. The adjustment is simple and flexible, a target value is not required to be preset, and the adjustment can be automatically performed according to an actual application scene.
More specifically, the following principle can be adopted in the adjustment: when the document color is white, the brightness value of the taken color is adjusted in a reduced mode; when the document color is black, the brightness value of the taken color is adjusted in an increasing manner. As the background color is darker when the text color is brighter, the text can be better highlighted, so that the brightness value is reduced, which is beneficial to darkening the taken color; and when the color of the document is darker, the background color is brighter, so that the document can be better highlighted, and the brightness value is increased, thereby being beneficial to brightening the taken color.
It should be noted that, in the first to sixth embodiments, when the parameter values of the color are adjusted, the brightness values are adjusted so that the color is contrasted with the document color, and the document is more clearly seen. In practical application, the saturation value can be adjusted by using a mode of adjusting the saturation value, and the specific description is as follows:
The method specifically comprises the following steps of: and adjusting the saturation value of the color, wherein the difference value between the adjusted saturation value and the saturation value of the color of the document is larger than or equal to a second preset threshold. Taking black as an example, the saturation value of the color is adjusted in a decreasing manner.
The above steps of the methods are divided, for clarity of description, and may be combined into one step or split into multiple steps when implemented, so long as they include the same logic relationship, and they are all within the protection scope of this patent; it is within the scope of this patent to add insignificant modifications to the algorithm or flow or introduce insignificant designs, but not to alter the core design of its algorithm and flow.
A seventh embodiment of the present application relates to a color extracting device, as shown in fig. 5, including:
and the color taking module is used for taking color from the object to be color-taken.
And the analysis module is used for determining the parameter value of the taken color, wherein the parameter value at least comprises a brightness value. Specifically, when selecting a color, an area analysis method may be used, specifically: analyzing an object to be colored, and determining the color in the object to be colored and the area corresponding to the color; the color with the largest area is determined as the taken color. In the present embodiment, the determination method of each color in the object to be color-extracted is not limited. The determining of the area corresponding to the color may specifically determine that the color is the taken color according to the number of pixel points, if the number of pixel points corresponding to a certain color is the largest.
The adjusting module is used for adjusting the parameter value of the color, and the adjusted parameter value accords with a preset condition. Specifically, in this embodiment, the brightness value of the color is adjusted, and the difference between the brightness value of the adjusted color and the brightness value of the document color is greater than or equal to a first preset threshold.
And the output module is used for taking the color obtained after the parameter value is adjusted as the background color of the document.
According to the embodiment of the application, the color taken from the object to be colored is changed, so that when the color is applied to the background, the color can be compared with the document to a certain extent, the content of the document is more clearly presented, and the situation that the document cannot be seen clearly due to the fact that similar colors are taken is avoided. Specifically, when the color is adjusted, the brightness value of the color is adjusted, and a certain amount of difference is formed between the adjusted brightness value and the brightness value of the document color. The inventor of the application finds that, as the brightness value can simply and quickly show whether the two colors have contrast or not, the problem of how to avoid taking similar colors to make the text invisible can be simply and quickly solved by adopting the adjustment of the brightness value.
It is to be noted that this embodiment is a system example corresponding to the first embodiment, and can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and in order to reduce repetition, a detailed description is omitted here. Accordingly, the related art details mentioned in the present embodiment can also be applied to the first embodiment.
It should be noted that each module in this embodiment is a logic module, and in practical application, one logic unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, elements that are not so close to solving the technical problem presented in the present application are not introduced in the present embodiment, but it does not indicate that other elements are not present in the present embodiment.
An eighth embodiment of the present application relates to a color-taking device, and the present embodiment is further improved based on the seventh embodiment, and adds a processing module, and when it is determined that adjustment is required, the adjustment module is triggered to perform adjustment, so as to provide a changeable embodiment, and more conform to an actual application scenario.
As shown in fig. 6, in addition to the analysis module, the adjustment module, and the output module in the seventh embodiment, the system further includes:
the processing module is used for judging whether the brightness value of the taken color needs to be adjusted; when the judgment is yes, triggering the adjusting module; and when the judgment is negative, triggering the primary color output module.
And the primary color output module is used for outputting the taken color. Specifically, when the brightness value of the obtained color accords with the preset reference range, a large difference between the obtained color and the document color can be determined, and the document can be well presented, so that the obtained color does not need to be adjusted, and the obtained color can be directly output for the document carrier.
Specifically, whether the brightness value of the taken color needs to be adjusted is judged according to the brightness value of the taken color and the document color. Since the inventors found that the change in the brightness value can more significantly represent the contrast between colors, this step specifically uses the difference in brightness values to determine whether the color to be taken needs to be adjusted.
In this embodiment, a reference range is preset, and then, whether the brightness value of the color is required to be adjusted is determined according to the relation between the brightness value of the color and the preset reference range. The difference value between any value in the reference range and the brightness value of the document color is larger than or equal to a first preset threshold. The first preset threshold may be greater than or equal to 30, and the greater the first preset threshold, the greater the contrast between the reference range and the document color, the more prominent the document color may be.
In this embodiment, whether adjustment is needed is determined according to the brightness value of the color and the brightness value of the document color, and when adjustment is determined to be needed, an adjustment step is performed, so as to better meet the requirements of the actual application scene. Meanwhile, whether adjustment is needed or not is judged according to a preset reference range, and the method is simple, convenient and accurate and has high operability.
Since the second embodiment corresponds to the present embodiment, the present embodiment can be implemented in cooperation with the second embodiment. The related technical details mentioned in the second embodiment are still valid in this embodiment, and the technical effects achieved in the second embodiment may also be achieved in this embodiment, so that the repetition is reduced, and the description is omitted here. Accordingly, the related art details mentioned in the present embodiment can also be applied to the second embodiment.
A ninth embodiment of the present invention relates to a color extracting device, which is substantially the same as the eighth embodiment, and is mainly different in that: in the eighth embodiment, it is determined whether or not adjustment of the taken color is necessary according to the relationship between the brightness value of the taken color and a preset reference range. In the ninth embodiment of the present application, the brightness value of the color to be taken and the brightness value of the document color are directly compared, and whether adjustment is required is determined according to the comparison result, so that the color taking method in the present embodiment is simplified.
Specifically, in this embodiment, the processing module may compare the brightness value of the color to the brightness value of the document color in the judging process, and then judge whether to adjust the brightness value of the color according to the comparison result. If the difference between the brightness value of the color and the brightness value of the document color is smaller than a first preset threshold, the adjustment is determined to be needed. Assuming that the first preset threshold is set to 30, it can be obtained that if the difference between the brightness value of the color taken and the brightness value of the document color is less than 30, it is determined that adjustment is required, and if it is greater than or equal to 30, it is determined that adjustment is not required.
Similarly, in this embodiment, the larger the value of the first preset threshold is, the more scenes need to be adjusted, the larger the difference between the color of the adjusted color and the color of the document is, and the more prominently the document is displayed.
Therefore, another practical adjustment and judgment process is provided in the present embodiment, and the judgment process in the present embodiment is simpler and more direct, which is beneficial to simplifying the structure of the color extraction device and accelerating the actual execution speed of the color extraction device in the present embodiment.
A tenth embodiment of the present application relates to a color taking device. When the adjustment module in the embodiment is used for adjusting, a target brightness value is determined based on the document color, and then the brightness value of the taken color is adjusted to the target brightness value, so that a feasible adjustment mode is provided, and an effective and feasible implementation scheme is provided for the taken color after the adjustment is output subsequently.
Since the fifth embodiment corresponds to the present embodiment, the present embodiment can be implemented in cooperation with the fifth embodiment. The related technical details mentioned in the fifth embodiment are still valid in the present embodiment, and the technical effects achieved in the fifth embodiment are also achieved in the present embodiment, so that the repetition is reduced, and the description is omitted here. Accordingly, the related art details mentioned in the present embodiment can also be applied to the fifth embodiment.
An eleventh embodiment of the present application also relates to a color extracting device. The eleventh embodiment is substantially the same as the tenth embodiment, and differs mainly in that: in a tenth embodiment, when the adjustment module adjusts the brightness value of the color taken, the adjustment module sets the target brightness value first and then adjusts the brightness value based on the target brightness value.
Since the sixth embodiment corresponds to the present embodiment, the present embodiment can be implemented in cooperation with the sixth embodiment. The related technical details mentioned in the sixth embodiment are still valid in the present embodiment, and the technical effects achieved in the sixth embodiment are also achieved in the present embodiment, and in order to reduce repetition, a detailed description is omitted here. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the sixth embodiment.
Further, in addition to the above-mentioned seventh to eleventh embodiments, when the parameter value of the taken color is adjusted, the brightness value is adjusted so that the taken color and the document color contrast, so that the document is seen more clearly. In practical applications, the saturation value may be adjusted by adjusting the saturation value.
A twelfth embodiment of the present application relates to an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any one of the color extraction methods as mentioned in the first to sixth embodiments above.
Where the memory and the processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting the various circuits of the one or more processors and the memory together. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over the wireless medium via the antenna, which further receives the data and transmits the data to the processor. The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory may be used to store data used by the processor in performing operations.
As shown in fig. 7, the electronic device may include: a memory 601, a central processing unit CPU 602 (Central Processing Unit, simply referred to as a processor), a memory 601 for storing executable program codes; the processor 602 executes a program corresponding to the executable program code by reading the executable program code stored in the memory 601 for executing:
determining the brightness value of the color taken in the object to be colored; adjusting the brightness value of the taken color, wherein the difference value between the adjusted brightness value and the brightness value of the document color is larger than or equal to a first preset threshold; outputting the adjusted color.
The electronic device further includes: peripheral interface 603, radio frequency RF circuitry 605, audio circuitry 606, speakers 611, power management chip 608, input/output (I/O) subsystem 609, touch screen 612, other input/control devices 610, and external ports 604, which communicate through one or more communication buses or signal lines 607.
It should be understood that the illustrated electronic device 600 is merely one example of an electronic device, and that the electronic device 600 may have more or fewer components than shown in the figures, may combine two or more components, or may have different configurations of components. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits. The electronic device provided in this embodiment will be described in detail below, and the electronic device is exemplified by a mobile phone.
Memory 601, memory 601 may be accessed by CPU 602, peripheral interface 603, etc., memory 601 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other volatile solid state storage devices.
Peripheral interface 603, the peripheral interface 603 may connect input and output peripherals of the device to the CPU 502 and memory 601.
I/O subsystem 609, I/O subsystem 609 may connect input-output peripherals on a device, such as touch screen 612 and other input/control devices 610, to peripheral interface 603. The I/O subsystem 609 may include a display controller 6091 and one or more input controllers 6092 for controlling other input/control devices 610. Wherein one or more input controllers 6092 receive electrical signals from other input/control devices 610 or send electrical signals to other input/control devices 610, other input/control devices 610 may include physical buttons (push buttons, rocker buttons, etc.), dials, slider switches, joysticks, click wheels. It should be noted that the input controller 6092 may be connected to any one of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.
Touch screen 612, touch screen 612 is an input interface and an output interface between a user terminal and a user, displaying visual output to the user, which may include graphics, text, icons, video, and the like.
The display controller 6091 in the I/O subsystem 609 receives electrical signals from the touch screen 612 or transmits electrical signals to the touch screen 612. The touch screen 612 detects a contact on the touch screen, and the display controller 6091 converts the detected contact into an interaction with a user interface object displayed on the touch screen 612, that is, a man-machine interaction is realized, and the user interface object displayed on the touch screen 612 may be an icon for running a game, an icon networked to a corresponding network, or the like. It is noted that the device may also include a light mouse, which is a touch sensitive surface that does not display a visual output, or an extension of a touch sensitive surface formed by a touch screen.
The RF circuit 605 is mainly used for establishing communication between the mobile phone and the wireless network (i.e. the network side), and implementing data receiving and transmitting between the mobile phone and the wireless network. Such as sending and receiving short messages, emails, etc. Specifically, the RF circuit 605 receives and transmits RF signals, also referred to as electromagnetic signals, and the RF circuit 605 converts electrical signals into electromagnetic signals or electromagnetic signals into electrical signals and communicates with a communication network and other devices through the electromagnetic signals. RF circuitry 605 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC (COder-DECoder) chipset, a subscriber identity module (Subscriber Identity Module, SIM), and so forth.
The audio circuit 606 is mainly used for receiving audio data from the peripheral interface 603, converting the audio data into an electrical signal, and transmitting the electrical signal to the speaker 611.
A speaker 611 for reproducing the voice signal received from the wireless network by the mobile phone through the RF circuit 605 into sound and playing the sound to the user.
The power management chip 608 is used for supplying power and managing power for the hardware connected with the CPU602, the I/O subsystem and the peripheral interface 603.
According to the embodiment of the application, the color taken from the object to be colored is changed, so that when the color is applied to the background, the color can be compared with the document to a certain extent, the content of the document is more clearly presented, and the situation that the document cannot be seen clearly due to the fact that similar colors are taken is avoided. Specifically, when the color is adjusted, the brightness value of the color is adjusted, and a certain amount of difference is formed between the adjusted brightness value and the brightness value of the document color. The inventor of the application finds that, as the brightness value can simply and quickly show whether the two colors have contrast or not, the problem of how to avoid taking similar colors to make the text invisible can be simply and quickly solved by adopting the adjustment of the brightness value.
An eleventh embodiment of the present application relates to a computer-readable storage medium storing a computer program. The computer program, when executed by a processor, implements the color extracting method according to any one of the first to sixth embodiments.
That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments described herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementing the present application and that various changes in form and details may be made therein without departing from the spirit and scope of the present application.
Claims (11)
1. A method of color extraction, comprising:
Color is taken from the object to be color-taken;
determining a parameter value of the color, wherein the parameter value at least comprises a brightness value;
judging whether the brightness value of the color is beyond a preset reference range, wherein the difference value between any value in the reference range and the brightness value of the document color is larger than or equal to a first preset threshold;
if the brightness value of the taken color exceeds a preset reference range, judging that adjustment is needed, wherein when the color of the document is white, the preset reference range is larger than or equal to a first threshold value and smaller than or equal to a second threshold value, and the first threshold value is smaller than the second threshold value; when the document color is black, the preset reference range is larger than or equal to a third threshold value and smaller than or equal to a fourth threshold value, wherein the third threshold value is smaller than the fourth threshold value, and the second threshold value is smaller than or equal to the third threshold value;
when the adjustment is judged to be needed, adjusting the brightness value of the color, wherein the difference value between the brightness value after adjustment and the brightness value of the document color is larger than or equal to a first preset threshold;
the color obtained after the parameter value is adjusted is used as the background color of the document.
2. The method according to claim 1, wherein adjusting the brightness value of the color to be taken, the difference between the adjusted brightness value and the brightness value of the document color being greater than or equal to a first preset threshold, comprises:
and adjusting the brightness value of the color with a preset step length until the difference value between the adjusted brightness value and the brightness value of the document color is larger than or equal to the first preset threshold.
3. The color extraction method according to claim 2, wherein said adjusting the brightness value of the extracted color comprises:
when the document color is white, adjusting the brightness value of the taken color in a reduced mode;
when the document color is black, the brightness value of the taken color is adjusted in an increasing manner.
4. The color extraction method according to claim 1, wherein said adjusting the brightness value of the extracted color comprises:
determining a target brightness value according to the brightness value of the document color, wherein the difference value between the target brightness value and the brightness value of the document color is larger than or equal to the first preset threshold;
adjusting the brightness value of the color to the target brightness value;
When the document color is white, determining that the target brightness value is greater than or equal to a fifth threshold value and less than or equal to a sixth threshold value, wherein the fifth threshold value is less than the sixth threshold value;
when the document color is black, determining that the target brightness value is greater than or equal to a seventh threshold value and less than or equal to an eighth threshold value, the seventh threshold value being less than the eighth threshold value.
5. The method according to claim 1, wherein the step of extracting color from the object to be extracted includes:
analyzing the object to be colored, and determining the color of the object to be colored and the area corresponding to the determined color;
the color with the largest area is determined as the extracted color.
6. The color extraction method according to claim 1, wherein the parameter values further comprise: a saturation value;
the adjusting the parameter value of the taken color comprises the following steps: and adjusting the saturation value of the color, wherein the difference value between the adjusted saturation value and the saturation value of the color of the document is larger than or equal to a second preset threshold.
7. The method of claim 6, wherein adjusting the saturation value of the color comprises:
If the document color is black, the saturation value of the taken color is adjusted in a reduced manner.
8. The method of claim 1, wherein the document is located in a display area associated with the object to be color-coded;
the color taken after the parameter value is adjusted is taken as the background color of the document, and the color is specifically as follows: filling the color taken after adjusting the parameter value into the display area to be used as the background color of the document.
9. A color extraction device, comprising:
the color taking module is used for taking color from the object to be color-taken;
an analysis module for determining a parameter value of the color taken, wherein the parameter value at least comprises a brightness value;
the adjusting module is used for judging whether the brightness value of the taken color exceeds a preset reference range, and the difference value between any value in the reference range and the brightness value of the document color is larger than or equal to a first preset threshold; if the brightness value of the taken color exceeds a preset reference range, judging that adjustment is needed, wherein when the color of the document is white, the preset reference range is larger than or equal to a first threshold value and smaller than or equal to a second threshold value, and the first threshold value is smaller than the second threshold value; when the document color is black, the preset reference range is larger than or equal to a third threshold value and smaller than or equal to a fourth threshold value, wherein the third threshold value is smaller than the fourth threshold value, and the second threshold value is smaller than or equal to the third threshold value; when the adjustment is judged to be needed, adjusting the brightness value of the color, wherein the difference value between the brightness value after adjustment and the brightness value of the document color is larger than or equal to a first preset threshold;
And the output module is used for taking the color obtained after the parameter value is adjusted as the background color of the document.
10. An electronic device, comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the color extraction method of any one of claims 1 to 8.
11. A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the color extraction method according to any one of claims 1 to 8.
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| CN111626695B (en) * | 2020-05-19 | 2023-07-21 | 正显新材料科技(广东)有限公司 | Verification method for plastic template, terminal and computer readable storage medium |
| CN111626696A (en) * | 2020-05-19 | 2020-09-04 | 东彩塑胶颜料(深圳)有限公司 | Rapid color matching method of plastic sample plate, terminal and computer readable storage medium |
| CN111626697B (en) * | 2020-05-19 | 2023-07-11 | 正显新材料科技(广东)有限公司 | Color scheme determining method for plastic template, terminal and readable storage medium |
| CN113763500B (en) * | 2021-09-07 | 2024-07-05 | 平安国际智慧城市科技股份有限公司 | HSB color-taking processing method, device, equipment and storage medium in Web page |
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