CN109949379B - Color-tracing method, device, equipment and storage medium for ink-jet printer - Google Patents
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Abstract
The invention discloses a color tracing method, a color tracing device, color tracing equipment and a storage medium of an ink-jet printer. The method comprises the steps of obtaining an initial color value of a pixel point needing color adjustment in an image to be printed; adjusting the initial color values to obtain a corresponding number of color block color values; printing according to each color block color value to obtain a plurality of printing color blocks, wherein the plurality of printing color blocks form a color target graph; and comparing the color target image with a sample image corresponding to the image to be printed to obtain an actual color value corresponding to the initial color value. The invention only needs one-time printing adjustment, is simple and quick, has small color difference of color tracking, has good image restoration effect and does not need to rely on depth toning personnel.
Description
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to a color tracing method, a device, equipment and a storage medium of an ink-jet printer.
Background
In the color management process of the color ink-jet printer, the color curve of the printer can be adjusted to control the output ink amount of each channel of the printer, so that the overall printing color effect of the printer is controlled. Therefore, the printing effect desired by the user can be effectively obtained by controlling the change of the color curve of the printer, but the purpose of the color curve control of the printer is to enable the ink quantity value input by the printer to be closer to the actually output ink quantity value, so as to ensure that the printed color is more stable.
However, for the existing customer who needs to print an image with the same color as the sample image or print a designated color, the customer's requirement cannot be met only by the color curve in the color management. The method in the prior art is characterized in that a color curve is adjusted manually and repeatedly, then an image is printed, and finally a target ink input value with the same or similar color to the color required by a customer is found.
Disclosure of Invention
The embodiment of the invention provides a color tracing method, a color tracing device, color tracing equipment and a storage medium of an ink-jet printer, which are used for solving the problems of large workload, time waste and labor waste of manual adjustment for meeting the specific printing color requirements of customers in the prior art.
In a first aspect, an embodiment of the present invention provides a color tracking method for an inkjet printer, the method including:
acquiring an initial color value of a pixel point needing color adjustment in an image to be printed;
adjusting the initial color values to obtain a corresponding number of color block color values;
printing according to each color block color value to obtain a plurality of printing color blocks, wherein the plurality of printing color blocks form a color target graph;
comparing the color target image with a sample image corresponding to the image to be printed to obtain an actual color value corresponding to the initial color value; selecting a color lump color from a color target image corresponding to an initial color value, comparing the color lump color with the color of a pixel point corresponding to the initial color value in a sample image corresponding to the image to be printed, selecting a color lump with the color closest to the color of the pixel point in the sample image and acquiring the color lump color value of the color lump, respectively and simultaneously scanning the color target image and the sample image through scanning equipment, and automatically acquiring a matching result according to the scanning result; the adjusting the initial color values to obtain a corresponding number of color block color values comprises:
obtaining a floating value of the initial color value;
respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel;
and arranging and combining the actual input values of the dot area rates corresponding to each color channel to obtain the color block color values of the corresponding number.
Preferably, one of said initial color values comprises: the dot area ratios of cyan channel, magenta channel, yellow channel and black channel of the ink-jet printer are initially input values, and one of the actual color values comprises: the actual input values of the dot area ratios of the cyan channel, the magenta channel, the yellow channel and the black channel of the ink-jet printer are obtained.
Preferably, there is one initial color value, and one initial color value corresponds to a plurality of pixel points.
Preferably, the 4 initial color values include: a first initial color value, a second initial color value, a third initial color value, a fourth initial color value, and setting the initial input value of the dot area ratio of the cyan channel to CiThe initial input value of the area rate of the dots of the magenta channel is MiThe initial input value of the area rate of the dots of the yellow channel is YiThe initial input value of the area ratio of the dots of the black channel is KiThe initial input value of the dot area rate of the first initial color value is: 0 < Ci1≤100、Mi1＝0、Yi1＝0、Ki10; the initial input value of the dot area rate of the second initial color value is: ci2＝0、0＜Mi2≤100、Yi2＝0、Ki20; the initial input value of the dot area rate of the third initial color value is: ci3＝0、Mi3＝0、0＜Yi3≤100、Ki30; the initial input value of the dot area rate of the fourth initial color value is: ci4＝0、Mi4＝0、Yi4＝0、0＜Ki4≤100。
Preferably, the initial color value includes color values of all pixel points in the image to be printed.
Preferably, the adjusting the initial color values to obtain color block color values of each color block in the color target map comprises:
obtaining a floating value of the initial color value;
respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel;
and arranging and combining the actual input values of the dot area rates corresponding to each color channel to obtain the color block color values of the corresponding number.
Preferably, the comparing the color target map with the sample map corresponding to the image to be printed to obtain the actual color values corresponding to the initial color values includes:
selecting a color block with the minimum color difference value of the pixel points corresponding to the initial color value in the sample image from the color target image to be marked as a color-tracing color block;
and acquiring color block color values corresponding to the color-tracing color blocks, namely actual color values corresponding to the initial color values.
In a second aspect, an embodiment of the present invention provides a color matching apparatus for an inkjet printer, the apparatus including:
the initial color value acquisition module is used for acquiring the initial color value of a pixel point needing color adjustment in an image to be printed;
the color block color value acquisition module is used for adjusting the initial color values to acquire the corresponding number of color block color values;
the printing module is used for printing according to each color block color value to obtain a plurality of printing color blocks, and the plurality of printing color blocks form a color target graph;
the actual color value acquisition module is used for comparing the color target image with a sample image corresponding to the image to be printed to acquire an actual color value corresponding to the initial color value; selecting a color lump color from a color target image corresponding to an initial color value, comparing the color lump color with the color of a pixel point corresponding to the initial color value in a sample image corresponding to the image to be printed, selecting a color lump with the color closest to the color of the pixel point in the sample image and acquiring the color lump color value of the color lump, respectively and simultaneously scanning the color target image and the sample image through scanning equipment, and automatically acquiring a matching result according to the scanning result; the adjusting the initial color values to obtain a corresponding number of color block color values comprises:
obtaining a floating value of the initial color value;
respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel;
and arranging and combining the actual input values of the dot area rates corresponding to each color channel to obtain the color block color values of the corresponding number.
In a third aspect, an embodiment of the present invention provides a color-chasing apparatus of an inkjet printer, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.
In a fourth aspect, embodiments of the present invention provide a storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of the first aspect in the above embodiments.
In summary, according to the method, the apparatus, the device, and the storage medium for color tracking of an inkjet printer provided in the embodiments of the present invention, the initial color value of the image to be printed, which needs to be color-adjusted, is obtained, the initial color value is adjusted to obtain the color block color value of each color block in the color target map, the color target map is printed, the color target map is compared with the sample map to obtain the actual color value corresponding to the initial color value, and the actual color value is printed according to the actual color value during printing, so that the color of the finally printed image is ensured to be the same as or similar to the color of the sample. The method only needs one-time printing adjustment, is simple and quick, has small color difference of color tracking, has good image restoration effect, and does not need to rely on depth toning personnel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a color matching method of an ink jet printer according to a first embodiment of the present invention.
Fig. 2 is a flowchart of a color matching method of an ink jet printer according to a second embodiment of the present invention.
FIG. 3 shows color patch color information of a color tracking method of an ink jet printer according to a second embodiment of the present invention.
FIG. 4 shows color patch color information in a color tracking method of an ink jet printer according to a third embodiment of the present invention.
Fig. 5 is a schematic structural view of a color matching device of an ink jet printer according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a color chasing apparatus of an inkjet printer according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1, an embodiment of the present invention provides a color tracing method for an inkjet printer, the method includes obtaining an initial color value to be color-adjusted in an image to be printed, then adjusting the initial color value to obtain a color block color value of each color block in a color target map, printing the color target map, comparing the color target map with a sample map to obtain an actual color value corresponding to the initial color value, and printing according to the actual color value during printing, so as to ensure that a color of a finally printed image is the same as or similar to a color of the sample. The method only needs one-time printing adjustment, is simple and quick, has small color difference of color tracking, has good image restoration effect, and does not need to rely on depth toning personnel. The method specifically comprises the following steps:
s1, obtaining an initial color value of a pixel point needing color adjustment in the image to be printed;
preferably, in this embodiment, one of the initial color values includes: the dot area ratios of Cyan channel (C, Cyan), Magenta channel (M, Magenta), Yellow channel (Y, Yellow) and black channel (K, black) of the inkjet printer are initial input values, and the corresponding actual color values obtained according to the initial color values include: actual input values of dot area rates of a Cyan channel (C, Cyan), a Magenta channel (M, Magenta), a Yellow channel (Y, Yellow) and a black channel (K, black) of the ink-jet printer; one of the initial color values may further include a spot color channel, for example, a dot area initial rate input value of a blue channel, a red channel, or the like, and the corresponding actual color value also includes a dot area rate actual input value of a patent channel, where the initial color value corresponds to a color channel of the actual color value one to one. Meanwhile, the color tracking methods of all color channels are the same, the present invention will be specifically described by taking a basic four-color channel as an example, and in this embodiment, the maximum value of the dot area rate input of each color channel is 100%, and the minimum value is 0.
The number of the pixel points needing to be subjected to color tracing is different according to different printing equipment and printing environments. If the difference between the color of the image printed by the printing equipment and the color of the sample provided by the customer is small, and only one color is different from the color of the sample provided by the customer, the color tracing processing is only needed to be carried out on the color value, one color value may correspond to one pixel point or a plurality of pixel points, and the color of the pixel point corresponding to the color value can be adjusted when the color value is changed no matter the pixel point or the pixel points are corresponding to the plurality of pixel points; therefore, the aim of color matching can be fulfilled, and the color matching efficiency is greatly improved.
When the image color that printing apparatus printed out is great with the color difference of the sample that the customer provided, then need follow the look processing alone to all pixel points, acquire all colour values in waiting to print the image, adjust all colour values and acquire the target map that corresponds, print the target map, will the target map with the sample map contrast and acquire the actual colour value that every colour value corresponds, can be accurate like this follow the look to every pixel point for the color of printing the product can highly match the required color of customer.
And when the color difference between the color printed by the printing equipment and the color of the sample provided by the customer is large, the color can be chased only by the pure color block, namely, the selected 4 initial color values comprise: a first initial color value, a second initial color value, a third initial color value, a fourth initial color value, and setting the initial input value of the dot area ratio of the cyan channel to CiThe initial input value of the area rate of the dots of the magenta channel is MiThe initial input value of the area rate of the dots of the yellow channel is YiThe initial input value of the area ratio of the dots of the black channel is KiIf the first initial color value is pure cyan, the initial input value of the dot area ratio of the pixel point corresponding to the pure cyan is: 0 < Ci1≤100％、Mi1＝0、Yi1＝0、Ki10; and the second initial color value is pure red, and the initial input value of the dot area rate of the pixel point corresponding to the pure red is as follows: ci2＝0、0＜Mi2≤100％、Yi2＝0、Ki20; and if the third initial color value is pure yellow, the initial input value of the dot area rate of the pixel point corresponding to the pure yellow is as follows: ci3＝0、Mi3＝0、0＜Yi3≤100％、Ki30; and if the fourth initial color value is pure black, the initial input value of the dot area rate of the pixel point corresponding to the pure black is as follows: ci4＝0、Mi4＝0、Yi4＝0、0＜Ki4Less than or equal to 100 percent. Therefore, the color matching can be performed only on the pixel points with larger color difference, and the color matching efficiency is improved while the color matching effect is achieved.
S2, adjusting the initial color values to obtain color block color values of corresponding number;
specifically, referring to fig. 2, the step S2 includes:
s21, acquiring a floating value of the initial color value;
s22, respectively adjusting the initial input value of the dot area rate of each color channel in the initial color value according to the floating value to obtain the actual input value of the dot area rate of each color channel;
and S23, arranging and combining the actual input values of the dot area ratios corresponding to each color channel to obtain the color block color values of corresponding quantity.
Acquiring a floating value according to the characteristics of printing equipment, and respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel, for example, the initial input value of the area rate of the halftone dot of a cyan channel in the initial color value is: cx, the initial input value of the dot area ratio of the magenta channel is: mx, the initial input value of the dot area ratio of the yellow channel is: yx, the initial input value of the dot area ratio of the black channel is: kx, where the floating value is V, and the adjusted actual input value of the dot area ratio of the cyan channel includes: cx + V and Cx-V, the actual input values for the dot area ratios for the magenta channel include: mx + V and Mx-V, the actual input values of the dot area ratios of the yellow channels include: yx + V and Yx-V, the actual input values of the dot area ratio of the black channel include: kx + V and Kx-V.
In an embodiment, the color block color value of each color block in the color target map is obtained according to the actual input value of the dot area rate corresponding to each color channel, specifically, the actual dot area rate corresponding to each color channel is usedInput values are arranged and combined to obtain 16 groups of color values (X)1～X16) And 16 groups of color values correspond to one color target map, and each group of color values corresponds to one color block in the color target map. Specifically, please refer to FIG. 3 as X1～X16The color target map corresponding to the initial color values (Cx, Mx, Yx, Kx) includes 16 color patches, and each color patch corresponds to a set of color information.
In another embodiment, the color block color value of each color block in the color target map is obtained according to the actual input value of the halftone dot area rate corresponding to each color channel, specifically, a plurality of values are obtained at certain intervals within the range of the actual input value of the halftone dot area rate corresponding to each color channel, then, the color values of each channel are arranged and combined to obtain the color block color value of one color target map, if 3 values are selected within the range of the actual input value of the halftone dot area rate [ Cx-V: Cx + V ] of the cyan channel, and 3 values are also selected within the range of the actual input value of the halftone dot area rates of the magenta channel, the yellow channel, and the black channel, and then, the color block color values in 81 are obtained by arranging and combining.
S3, printing according to each color block color value to obtain a plurality of printing color blocks, wherein the plurality of printing color blocks form a color target graph;
specifically, each group of color values is numbered according to the permutation and combination, and the color target graph is printed according to the number input color values, so that the color block color value corresponding to each color block can be clearly known.
And S4, comparing the color target graph with the sample graph corresponding to the image to be printed to acquire the actual color value corresponding to the initial color value.
Specifically, the color target map includes a plurality of color blocks, each color block corresponds to a color block color value, please refer to fig. 4, and the step S4 specifically includes the following steps:
s41, selecting a color block with the minimum color difference value of the pixel points corresponding to the initial color values in the sample image from the color target image to be recorded as a color-tracing color block;
and S42, acquiring color block color values corresponding to the color-tracing color blocks, namely actual color values corresponding to the initial color values.
Specifically, an initial color value X is taken as an example for explanation, a color lump color is selected from a color target image corresponding to the initial color value X and compared with a color of a pixel point corresponding to the initial color value in a sample image corresponding to the image to be printed, a color lump with the color closest to the color of the pixel point in the sample image is selected, and a color lump color value of the color lump is obtained; the color value of the color block is the actual input value of the dot area rate of the corresponding pixel. In this embodiment, the color target image and the sample image are scanned simultaneously by using a scanning device, and the matching result is automatically obtained according to the scanning result, wherein the comparison between the color target image and the sample image can also be obtained by manual observation. Meanwhile, in order to ensure the accuracy of comparison, in this embodiment, the initial color value of the selected pixel point is substantially the same as the initial color values of the surrounding pixel points.
The method can print the color which is the same as the sample given by the client according to the actual input value of the area rate of the dot of each pixel point, only needs one-time printing adjustment, is simple and quick, obtains the color tracing information based on a plurality of pixel points, has small color difference of the color tracing, has good image restoration effect, and does not need to rely on the personnel of the fund depth color matching.
Referring to fig. 5, an embodiment of the present invention provides a color matching device for an inkjet printer, the device including:
the initial color value obtaining module 10 is configured to obtain an initial color value of a pixel point, which needs to be color-adjusted, in an image to be printed;
a color block color value obtaining module 20, configured to adjust the initial color values to obtain a corresponding number of color block color values;
the printing module 30 is configured to print according to each color block color value to obtain a plurality of printing color blocks, where the plurality of printing color blocks form a color target map;
and the actual color value obtaining module 40 is configured to compare the color target map with a sample map corresponding to the image to be printed to obtain an actual color value corresponding to the initial color value.
Preferably, one of said initial color values comprises: the initial input values of the dot area ratios of the cyan channel, the magenta channel, the yellow channel and the black channel, one of the actual color values comprises: the actual input values of the dot area ratios of the cyan channel, the magenta channel, the yellow channel and the black channel of the ink-jet printer are obtained.
Preferably, there is one initial color value, and one initial color value corresponds to a plurality of pixel points.
Preferably, the 4 initial color values include: a first initial color value, a second initial color value, a third initial color value, a fourth initial color value, and setting the initial input value of the dot area ratio of the cyan channel to CiThe initial input value of the area rate of the dots of the magenta channel is MiThe initial input value of the area rate of the dots of the yellow channel is YiThe initial input value of the area ratio of the dots of the black channel is KiThe initial input value of the dot area rate of the first initial color value is: 0 < Ci1≤100、Mi1＝0、Yi1＝0、Ki1The initial input value of the dot area rate of the second initial color value is 0: ci2＝0、0＜Mi2≤100、Yi2＝0、Ki2The initial input value of the dot area ratio of the third initial color value is: ci3＝0、Mi3＝0、0＜Yi3≤100、Ki3The initial input value of the dot area ratio of the fourth initial color value is: ci4＝0、Mi4＝0、Yi4＝0、0＜Ki4≤100。
Preferably, the initial color value includes color values of all pixel points in the image to be printed.
Preferably, the patch color value acquiring module 20 includes:
a floating value acquiring unit for acquiring a floating value of the initial color value;
the color value adjusting unit is used for respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel;
and the color block color value acquisition unit is used for arranging and combining the actual input values of the dot area rates corresponding to the color channels to acquire the color block color values of the corresponding number.
Preferably, the actual color value obtaining module 40 includes:
the color-tracing color block obtaining unit is used for selecting a color block with the minimum color difference value of a pixel point corresponding to the initial color value in the sample image from the color target image and marking the color block as a color-tracing color block;
and the color block color value acquisition unit is used for acquiring the color block color value corresponding to the color tracing color block, namely the actual color value corresponding to the initial color value.
In addition, the color matching method of the inkjet printer according to the embodiment of the present invention described in conjunction with fig. 1 may be implemented by a color matching apparatus of the inkjet printer. Fig. 6 is a schematic diagram showing a hardware configuration of a color-tracing apparatus of an inkjet printer according to an embodiment of the present invention.
The chasing means of the ink jet printer may comprise a processor 401 and a memory 402 storing computer program instructions.
Specifically, the processor 401 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
The processor 401 reads and executes computer program instructions stored in the memory 402 to implement the color tracking method of the inkjet printer according to any of the above embodiments.
In one example, the chasing device of the inkjet printer may also include a communication interface 403 and a bus 410. As shown in fig. 6, the processor 401, the memory 402, and the communication interface 403 are connected via a bus 410 to complete communication therebetween.
The communication interface 403 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
In addition, in combination with the color tracking method of the inkjet printer in the above embodiments, embodiments of the present invention may be implemented by providing a computer-readable storage medium. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement a method of color chasing for an inkjet printer according to any of the above embodiments.
In summary, according to the method, the apparatus, the device, and the storage medium for color tracking of an inkjet printer provided in the embodiments of the present invention, the initial color value of the image to be printed, which needs to be color-adjusted, is obtained, the initial color value is adjusted to obtain the color block color value of each color block in the color target map, the color target map is printed, the color target map is compared with the sample map to obtain the actual color value corresponding to the initial color value, and the actual color value is printed according to the actual color value during printing, so that the color of the finally printed image is ensured to be the same as or similar to the color of the sample. The method only needs one-time printing adjustment, is simple and quick, has small color difference of color tracking, has good image restoration effect, and does not need to rely on depth toning personnel.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (9)
1. A method of chasing color in an ink jet printer, the method comprising:
acquiring an initial color value of a pixel point needing color adjustment in an image to be printed;
adjusting the initial color values to obtain a corresponding number of color block color values;
printing according to each color block color value to obtain a plurality of printing color blocks, wherein the plurality of printing color blocks form a color target graph;
comparing the color target image with a sample image corresponding to the image to be printed to obtain an actual color value corresponding to the initial color value; selecting a color lump color from a color target image corresponding to an initial color value, comparing the color lump color with the color of a pixel point corresponding to the initial color value in a sample image corresponding to the image to be printed, selecting a color lump with the color closest to the color of the pixel point in the sample image and acquiring the color lump color value of the color lump, respectively and simultaneously scanning the color target image and the sample image through scanning equipment, and automatically acquiring a matching result according to the scanning result; the adjusting the initial color values to obtain a corresponding number of color block color values comprises:
obtaining a floating value of the initial color value;
respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel;
and arranging and combining the actual input values of the dot area rates corresponding to each color channel to obtain the color block color values of the corresponding number.
2. The method of inkjet printer tracing according to claim 1, wherein one of said initial color values comprises: the dot area ratios of cyan channel, magenta channel, yellow channel and black channel of the ink-jet printer are initially input values, and one of the actual color values comprises: the dot area ratios of the cyan channel, the magenta channel, the yellow channel and the black channel of the ink-jet printer are actually input values.
3. The method of claim 2, wherein there is one initial color value, and one initial color value corresponds to a plurality of pixels.
4. The method of inkjet printer tracing according to claim 2, wherein said 4 initial color values include: first initial color value, second initial color valueSetting the initial input value of the dot area rate of the cyan channel as CiThe initial input value of the area rate of the dots of the magenta channel is MiThe initial input value of the area rate of the dots of the yellow channel is YiThe initial input value of the area ratio of the dots of the black channel is KiThe initial input value of the dot area rate of the first initial color value is: 0 < Ci1≤100、Mi1＝0、Yi1＝0、Ki10; the initial input value of the dot area rate of the second initial color value is: ci2＝0、0＜Mi2≤100、Yi2＝0、Ki20; the initial input value of the dot area rate of the third initial color value is: ci3＝0、Mi3＝0、0＜Yi3≤100、Ki30; the initial input value of the dot area rate of the fourth initial color value is: ci4＝0、Mi4＝0、Yi4＝0、0＜Ki4≤100。
5. The method of claim 2, wherein the initial color values comprise color values of all pixels in the image to be printed.
6. The method of claim 1, wherein comparing the target map and the sample map corresponding to the image to be printed to obtain actual color values corresponding to the initial color values comprises:
selecting a color block with the minimum color difference value of the pixel points corresponding to the initial color value in the sample image from the color target image to be marked as a color-tracing color block;
and acquiring color block color values corresponding to the color-tracing color blocks, namely actual color values corresponding to the initial color values.
7. A color chasing apparatus of an ink jet printer, the apparatus comprising:
the initial color value acquisition module is used for acquiring the initial color value of a pixel point needing color adjustment in an image to be printed;
the color block color value acquisition module is used for adjusting the initial color values to acquire the corresponding number of color block color values;
the printing module is used for printing according to each color block color value to obtain a plurality of printing color blocks, and the plurality of printing color blocks form a color target graph;
an actual color value obtaining module, configured to compare the color target map with a sample map corresponding to the image to be printed to obtain an actual color value corresponding to the initial color value, select a color block color from the color target map corresponding to the initial color value and compare with a color of a pixel point corresponding to the initial color value in the sample map corresponding to the image to be printed, select a color block with the color block color closest to the color of the pixel point in the sample map and obtain a color block color value of the color block, scan the color target map and the sample map respectively and simultaneously through a scanning device, and automatically obtain a matching result according to a scanning result; the adjusting the initial color values to obtain a corresponding number of color block color values comprises:
obtaining a floating value of the initial color value;
respectively adjusting the initial input value of the area rate of the halftone dot of each color channel in the initial color value according to the floating value to obtain the actual input value of the area rate of the halftone dot of each color channel;
and arranging and combining the actual input values of the dot area rates corresponding to each color channel to obtain the color block color values of the corresponding number.
8. A color chasing apparatus of an ink jet printer, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of claims 1-6.
9. A storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-6.
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| CN112477438B (en) * | 2020-11-13 | 2021-09-21 | 深圳汉弘软件技术有限公司 | Printing method, printing device, ink-jet printer and storage medium |
| CN114013033B (en) * | 2021-10-28 | 2023-08-22 | 齐鲁工业大学 | Control method for photosensitive resin type full-color 3D printing color |
| CN114771122B (en) * | 2022-03-25 | 2023-12-12 | 湖南鼎一致远科技发展有限公司 | Printing method, system, storage medium and printer based on double-color block strips |
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