CN113320293A - Printing data processing method, device, equipment and medium for eliminating splicing channel - Google Patents
Printing data processing method, device, equipment and medium for eliminating splicing channel Download PDFInfo
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- CN113320293A CN113320293A CN202010129819.3A CN202010129819A CN113320293A CN 113320293 A CN113320293 A CN 113320293A CN 202010129819 A CN202010129819 A CN 202010129819A CN 113320293 A CN113320293 A CN 113320293A
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- 238000007639 printing Methods 0.000 title claims abstract description 114
- 238000003672 processing method Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 238000004590 computer program Methods 0.000 claims description 8
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 239000000976 ink Substances 0.000 description 92
- 238000007641 inkjet printing Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 14
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- 238000012360 testing method Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
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- 238000006467 substitution reaction Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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Abstract
The invention discloses a printing data processing method, a device, equipment and a medium for eliminating a splicing channel, wherein the splicing channel is formed by ink discharge of at least one row of nozzles at the boundary of two adjacent rows of splicing nozzles, and the method comprises the following steps: acquiring the position information of each nozzle at the boundary in the current task; acquiring ink discharge information of each nozzle at a boundary in the current task according to the position information; and performing shape filtering processing on the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information. The invention reduces the problem of splicing channels caused by mutual overlapping of two rows of nozzle ink drops at the splicing position due to the influence of external factors.
Description
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to a printing data processing method, a device, equipment and a medium for eliminating a splicing channel.
Background
At present, in the working process of an industrial ink-jet printer, a printer nozzle sprays ink drops to form images or characters on a printing medium. In order to improve the accuracy and the height of the printing of the spray head by one-time scanning, a spray head manufacturer designs the spray head shown in figure 1, wherein each spray head (K) in figure 10、C0、M0、Y0And) is formed by splicing 3 small rows of nozzles (a, b and c), and overlapped nozzles exist at the splicing positions of the 3 small rows of nozzles (a, b and c); the manufacturer of the ink jet printing device splices a plurality of nozzles into one nozzle, for example, 3 nozzles for printing cyan (C) ink in FIG. 2 are C0、C1、C 23 nozzles C for printing cyan ink0、C1、C2The heads of the print products of red (M), yellow (Y) and black (K) ink are also 3, and the overlapped nozzles are arranged at the head and tail splicing positions. In the ink-jet printing process, due to the movement of the printing trolley, a 'wind wall' is easily formed at the splicing position of the two rows of nozzles. The air flow speed in the air wall is higher than that of the surrounding air, and the air pressure is lower, so that ink drops sprayed by nozzles at the edge of the splicing position of the two sprayers are easily sucked into the air wall and are overlapped in a cross mode, the ink volume concentration at the overlapping position is higher than that at the surrounding position, and a splicing channel with deeper color than that at the surrounding position is visually formed, and the splicing channel is called as a black channel. It has been found that the "black channel" is generated due to the deviation of the drop points of the ink drops of two or more nozzles, as shown in fig. 3, the two nozzle drops at the joint overlap each other due to the influence of external factors to form an elongated "black channel" which is visually darker than the surrounding area.
Disclosure of Invention
The embodiment of the invention provides a printing data processing method, a printing data processing device, printing data processing equipment and a storage medium for eliminating a splicing channel, and aims to solve the problem that at least one nozzle ink outlet deviation at the boundary of two adjacent rows of splicing nozzles forms the splicing channel in the prior art.
In a first aspect, an embodiment of the present invention provides a method for processing print data to eliminate a stitching lane, where the stitching lane is formed by ink discharged from at least one nozzle at a boundary between two adjacent rows of stitching nozzles, and the method includes:
acquiring the position information of each nozzle at the boundary in the current task;
acquiring ink discharge information of each nozzle at a boundary in the current task according to the position information;
and filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information.
Preferably, the acquiring, according to the position information, ink discharge information of each nozzle at a boundary in the current job includes:
acquiring first initial printing data and second initial printing data corresponding to a first nozzle and a second nozzle in each nozzle at a boundary in the current task according to the position information;
acquiring first ink outlet information of all nozzles of a first nozzle according to the first initial printing data;
and acquiring second ink output information of all the nozzles of the second nozzle according to the second initial printing data.
Preferably, the performing, according to the ink discharge information, dot changing processing on the initial print data corresponding to each nozzle at the boundary in the current job includes:
determining a first snapshot ratio for filtering first initial printing data according to the first ink outlet information and the second ink outlet information;
generating a first mask template according to the first snapshot ratio;
and filtering the first initial printing data according to the first mask template to obtain first actual printing data.
Preferably, the performing, according to the ink discharge information, dot changing processing on the initial print data corresponding to each nozzle at the boundary in the current job includes:
determining a first snapshot ratio for filtering first initial printing data and a second snapshot ratio for filtering second initial printing data according to the first ink output information and the second ink output information;
respectively and correspondingly generating a first mask template and a second mask template according to the first snapshot ratio and the second snapshot ratio;
filtering the first initial printing data according to the first mask template to obtain first actual printing data;
and filtering the second initial printing data according to the second mask template to obtain second actual printing data.
Preferably, the ink dots printed on the printing medium by the nozzles in the sub-job include: one of a large dot, a middle dot, a small dot and a hollow dot.
Preferably, the ink discharge information includes: one of the large points are formed on each nozzle at the boundary, the middle points are formed on each nozzle at the boundary, and the small points are formed on each nozzle at the boundary.
Preferably, the first snapshot ratio corresponding to the case that each nozzle at the boundary points a large dot is greater than or equal to the first snapshot ratio corresponding to the case that each nozzle at the boundary points a middle dot, and the first snapshot ratio corresponding to the case that each nozzle at the boundary points a middle dot is greater than or equal to the first snapshot ratio corresponding to the case that each nozzle at the boundary points a small dot.
In a second aspect, an embodiment of the present invention provides a print data processing apparatus for eliminating a splice lane, where the apparatus includes:
the position information acquisition module is used for acquiring the position information of each nozzle at the boundary in the current task;
the ink outlet information acquisition module is used for acquiring ink outlet information of each nozzle at the boundary in the current task according to the position information;
and the data processing module is used for filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information.
In a third aspect, an embodiment of the present invention provides a print data processing apparatus for eliminating a splice lane, 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, the method, the device, the equipment and the medium for processing the print data for eliminating the splicing lane according to the embodiments of the present invention determine the ink discharge information of the nozzles at the boundaries by acquiring the positions of each nozzle at the boundaries of the splicing nozzles in the current task, and filter the initial print data according to the ink discharge information so that each nozzle at the boundaries has no ink dots at part of the positions, thereby reducing the problem of the splicing lane caused by the mutual overlapping of the ink droplets of two rows of nozzles at the splicing lane due to the influence of external factors.
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 schematic view of a head structure employed in an ink jet printing apparatus according to a first embodiment of the present invention.
Fig. 2 is a schematic view of a head structure employed in an ink jet printing apparatus according to a second embodiment of the present invention.
Fig. 3 is a diagram of the effect of printing without the splice lane elimination processing.
Fig. 4 is a schematic structural diagram of an inkjet printing apparatus according to an embodiment of the present invention.
Fig. 5 is a flowchart of a print data processing method of eliminating a splice lane according to a third embodiment of the present invention.
Fig. 6 is a flowchart of a print data processing method of eliminating a splice lane according to a fourth embodiment of the present invention.
FIG. 7 is a schematic diagram of a test image with elimination of a splice channel according to a fourth embodiment of the present invention.
Fig. 8 is a schematic diagram of a boundary of a print data processing method for eliminating a splice lane according to a fourth embodiment of the present invention.
Fig. 9 is a schematic view of nozzle ink discharge information of a print data processing method of eliminating a splice lane according to a fourth embodiment of the present invention.
Fig. 10 is a flowchart of a print data processing method of eliminating a splice lane according to a fifth embodiment of the present invention.
FIG. 11 is a diagram illustrating the positions of data corresponding to the boundaries of a print data processing method for eliminating a splice lane according to a fifth embodiment of the present invention.
Fig. 12 is a flowchart of a print data processing method of eliminating a splice lane according to a sixth embodiment of the present invention.
Fig. 13 is a process diagram of a print data processing method of eliminating a splice lane according to a sixth embodiment of the present invention.
Fig. 14 is a process diagram of a print data processing method of eliminating a splice lane according to a seventh embodiment of the present invention.
Fig. 15 is a process diagram of a print data processing method of eliminating a splice lane according to a seventh embodiment of the present invention.
Fig. 16 is a diagram illustrating the effect of the method for processing print data to eliminate a splice lane according to the seventh embodiment of the present invention.
FIG. 17 is a schematic configuration diagram of a print data processing apparatus eliminating a splice lane according to an eighth embodiment of the present invention.
Fig. 18 is a schematic configuration diagram of a print data processing apparatus eliminating a splice lane according to a ninth 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. 4, the inkjet printing apparatus according to an embodiment of the present invention includes a printing cart 1, a supporting beam 2 and a printing platform 3, an inkjet printing head (not shown) for ejecting four inks of cyan (C), magenta (M), yellow (Y) and black (K) is mounted on the printing cart 1, the printing cart 1 reciprocates above the printing platform 3 along the supporting beam 2 and continuously advances in a direction perpendicular to the supporting beam 2, and the inkjet printing head ejects ink to a printing medium on the printing platform 3 during the reciprocating motion to form an image.
In the present invention, the inkjet printing apparatus performs inkjet printing using the inkjet print heads as shown in fig. 1, each of the inkjet print heads (K) in fig. 20、C0、M0、Y0And) the nozzle assembly is formed by splicing 3 small rows of nozzles (a, b and c) in a direction perpendicular to the supporting beam 2, and splicing nozzles (overlapped nozzles) exist at the splicing positions of the 3 small rows of nozzles (a, b and c), such as splicing nozzles exist at the splicing positions of the nozzles in the row a and the nozzles in the row b, and splicing nozzles also exist at the splicing positions of the nozzles in the row b and the nozzles in the row c. Therefore, when the splicing nozzle is used for printing, a splicing channel with darker colors is easy to appear at the splicing position.
Referring to fig. 5, an embodiment of the present invention provides a method for processing print data to eliminate a splice channel, where the method includes the following steps:
s1, acquiring the position information of each nozzle at the boundary in the current task;
specifically, the splicing method includes the steps of firstly obtaining splicing of two adjacent rows of splicing nozzlesAnd acquiring the dividing positions of two rows of spliced nozzles in the next task according to the number of the spliced nozzles and the splicing positions, namely acquiring the position information of one nozzle at each dividing position. In this embodiment, two adjacent columns of stitching nozzles are located in the same inkjet print head and print the same color ink, and then the number of stitching nozzles and the stitching position can be directly obtained from the inkjet head parameters, for example, the number of stitching nozzles of the a-column nozzles and the b-column nozzles in the cyan K inkjet print head in fig. 1 is 3, and the stitching position is the tail end of the a-column nozzles and the head end of the b-column nozzles. In another embodiment, two adjacent columns of stitching nozzles are located in different inkjet print heads and print the same color ink, and then the number of stitching nozzles and the stitching position of the two adjacent columns of stitching nozzles need to be obtained by printing a test chart, such as K in the cyan inkjet print head in fig. 20Row of nozzles and K1The number of the splicing nozzles of the row of nozzles is 3, and the splicing position is K0End of row of nozzles and K1Referring to fig. 6, the method for acquiring the number and the splicing positions of two adjacent columns of splicing nozzles in different inkjet print heads includes the following steps:
s11, acquiring printing data corresponding to the test image;
s12, controlling two adjacent rows of splicing nozzles to perform ink jet printing according to the printing data to obtain the test image;
and S13, acquiring the number and the splicing positions of splicing nozzles in two adjacent rows according to the test image.
Specifically, the method includes the steps of obtaining the number of nozzles of each spliced ink-jet printing head in two adjacent spliced ink-jet printing heads, designing a test image according to the number of nozzles of each spliced ink-jet printing head, enabling a line segment on the test image to correspond to one nozzle, inputting the test image into raster image processing software for rasterization processing to obtain printing data which can be identified by ink-jet printing equipment, controlling two adjacent spliced nozzles to perform ink-jet printing according to the printing data to obtain the test image, controlling scanning equipment to scan the test image to determine the number and positions of line segments with thicker lines in the test image, and obtaining the number and splicing positions of the spliced nozzlesThe thicker line segment is formed by two nozzles ejecting ink and is therefore thicker relative to the line segment formed by one nozzle ejecting ink. FIG. 7 is a schematic view of an ink jet print head (K) using the black ink of FIG. 20、K1、K2) The test chart formed by printing is obvious that the 6 th, 7 th, 8 th, 12 th, 13 th and 14 th line segments are thicker than other line segments, so that K can be judged0The nozzles 6, 7, 8, 12, 13, 14 in the ink-jet print head are tiled nozzles, K1The nozzles 1, 2, 3, 7, 8 and 9 in the ink-jet printing head are spliced nozzles, K2The nozzles 1, 2 and 3 in the ink-jet printing head are spliced nozzles, and one of the spliced nozzles is K0Tail end 3 nozzles of ink jet print head and K1The first 3 nozzles of the ink-jet printing head are composed of K1Tail end 3 nozzles of ink jet print head and K2The head end of the ink-jet printing head is composed of 3 nozzles.
And after the number and the splicing positions of the splicing nozzles are acquired, the boundary positions of the two rows of splicing nozzles are determined by combining the current task, namely the position information of one nozzle at each boundary. When the sub-job is to print pure patches, the inkjet printheads printing each color have no influence on each other, and the boundary position of the nozzles in the a column and the b column in the cyan K inkjet printhead in fig. 1 is the nth nozzle of the nozzles in the a column and the mth nozzle of the nozzles in the b column. When the current printing task is a color image, the inkjet print heads for printing each color have influence on each other, and therefore the number and the splicing position of the splicing nozzles for each color need to be considered comprehensively, as shown in fig. 8, the splicing positions of the heads for printing the four inks of cyan (C), magenta (M), yellow (Y), and black (K) are all the same, the number of the splicing nozzles for each color is 10, and in order to avoid overlapping of the splicing lanes L for each color, the boundary position of the nozzle in the row a of the cyan (C) head and the nozzle in the row b is set to be the nth nozzle of the nozzle in the row a1M-th of individual and b-row nozzles1A nozzle; the boundary position of the nozzles in the row a and the nozzles in the row b of the magenta (M) nozzle is the n-th nozzle of the row a2M-th of individual and b-row nozzles2The boundary position of the nozzles in the row a and the nozzles in the row b of the yellow (Y) nozzle is the n-th nozzle of the nozzle in the row a3A nozzle and bM th of row nozzle3The boundary position of the nozzles in the row a and the nozzles in the row b of the black (K) nozzle is the n-th nozzle of the nozzle in the row a4M-th of individual and b-row nozzles4A nozzle.
S2, acquiring ink discharge information of each nozzle at the boundary in the current task according to the position information;
specifically, the position of the initial printing data corresponding to each nozzle at the boundary in the current task in the image data to be printed and the specific ink output information are obtained through the position information. As shown in fig. 9, in the present embodiment, the dots that each nozzle can realize include: the ink discharge information of each nozzle at the boundary, which is one of the large dot L, the middle dot M, the small dot S, and the empty dot D (the empty dot indicates no ink discharge), includes: one of at least one nozzle in each nozzle at the boundary, a middle point in each nozzle at the boundary, and at least one nozzle in each nozzle at the boundary, a small point, further, the ink discharge information specifically includes: each nozzle at the boundary generates a large dot, namely the upper and lower rows of nozzles at the boundary generate one of a large dot, a middle dot and a small dot in the inkjet printing process; in another embodiment, each nozzle may achieve two ink dots, either ink or no ink, with one nozzle at the boundary discharging ink.
Preferably, referring to fig. 10, the step S2 specifically includes the following steps:
s21, acquiring first initial printing data and second initial printing data corresponding to a first nozzle and a second nozzle in each nozzle at a boundary in the current task according to the position information;
s22, acquiring first ink discharge information of all nozzles of a first nozzle according to the first initial printing data;
and S23, acquiring second ink discharge information of all the second nozzles according to the second initial printing data.
Specifically, referring to fig. 11, in this embodiment, two adjacent rows of nozzles are located in different inkjet print heads H1 and H2, respectively, the number of splicing nozzles in a splicing area of the inkjet print head H1 and the inkjet print head H2 is H, the positions of nozzles at the boundary of the two inkjet print heads in the whole splicing area are nLineIndex and nLineIndex +1, the inkjet print head H1 discharges ink from 0 th to nLineIndex nozzles in the splicing nozzle area, and the remaining nozzles do not discharge ink; in contrast, the inkjet print head H2 discharged ink from the nLineIndex +1 th to H-1 th nozzles in the spliced nozzle region, and the remaining nozzles did not discharge ink. And acquiring corresponding first initial printing data and second initial printing data from the initial image data according to the NLineIndex and the NLineIndex +1, and determining the ink outlet information of the NLineIndex and the NLineIndex +1 according to the first initial printing data and the second initial printing data.
And S3, filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information.
Specifically, referring to fig. 12, in the present embodiment, the step S3 specifically includes:
s311, determining a first snapshot ratio for filtering first initial printing data according to the first ink outlet information and the second ink outlet information;
s312, generating a first mask template according to the first snapshot ratio;
s313, filtering the first initial printing data according to the first mask template to obtain first actual printing data.
Specifically, in this embodiment, only one nozzle at the boundary is subjected to filtering processing, for example, only the first initial print data corresponding to the nth nozzle in fig. 11 is subjected to filtering processing. As shown in fig. 13, when all the nozzles of the nLineIndex and nLineIndex nozzles generate large dots, the snapshot ratio of the first initial print data for filtering is 1:1, that is, half of the ink dots corresponding to the first initial print data are extracted to become empty dot data; when all nozzles in the NLineIndex and NLineIndex nozzles generate the middle points, the snapshot ratio of filtering from the first initial printing data is 1:3, namely one of four parts of ink points corresponding to the first initial printing data is drawn out to become null point data; when all the nozzles of the nLineIndex and nLineIndex nozzles generate small dots, the snapshot ratio for filtering from the first initial print data is 1:7, that is, one of eight dots is drawn from the ink dots corresponding to the first initial print data to become null dot data. The first snapshot ratio is only required for the dot situation in this embodiment, and the first snapshot ratio will be different under different print jobs and print requirements, and is not specifically limited herein. And after the first snapshot ratio is determined, generating a corresponding first mask template according to a halftone algorithm, and carrying out AND operation on the first initial printing data and the first mask template to filter out the drawn ink dots so that the ink dots do not appear in the printing process, thereby reducing the concentration of an image formed by overlapping ink on two rows of nozzles at the final boundary.
Specifically, referring to fig. 14, in the present embodiment, the step S3 specifically includes:
s321, determining a first snapshot ratio for filtering first initial printing data and a second snapshot ratio for filtering second initial printing data according to the first ink output information and the second ink output information;
s322, respectively and correspondingly generating a first mask template and a second mask template according to the first snapshot ratio and the second snapshot ratio;
s323, filtering the first initial printing data according to the first mask template to obtain first actual printing data;
and S324, filtering the second initial printing data according to the second mask template to obtain second actual printing data.
Specifically, in this embodiment, the two rows of nozzles at the boundary are subjected to filtering processing, for example, second initial print data of the first initial print data corresponding to the nth line index and the nth line index +1 nozzles in fig. 11 is subjected to filtering processing. As shown in fig. 15, when all the nozzles in the nLineIndex and nLineIndex +1 nozzles generate large dots, the first initial print data is filtered at a snapshot ratio of 1:1, that is, half of the dots corresponding to the first initial print data are taken out to become empty dot data, and the second initial print data is filtered at a snapshot ratio of 1:1, that is, half of the dots corresponding to the second initial print data are taken out to become empty dot data, and the snapshot is performed alternately in the first initial print data and the second initial print data; when all nozzles in the nLineIndex and nLineIndex nozzles generate middle points, the snapshot ratio of filtering from the first initial printing data is 1:3, namely one of four parts of ink points corresponding to the first initial printing data is taken out to become null point data, and the snapshot ratio of filtering from the second initial printing data is 1:3, namely one of four parts of ink points corresponding to the second initial printing data is taken out to become null point data, and meanwhile, the snapshot is alternately performed in the first initial printing data and the second initial printing data; when all the nozzles in the nLineIndex and nLineIndex nozzles generate small dots, the ratio of the dots filtered from the first initial printing data is 1:7, that is, one of eight dots is extracted from the ink dots corresponding to the first initial printing data to become null dot data, and the dots are alternately extracted from the first initial printing data and the second initial printing data. The first snapshot ratio is only required for the dot situation in this embodiment, and the first snapshot ratio will be different under different print jobs and print requirements, and is not specifically limited herein. And after the first snapshot ratio is determined, generating a corresponding first mask template according to a halftone algorithm, and carrying out AND operation on the first initial printing data and the first mask template to filter out the drawn ink dots so that the ink dots do not appear in the printing process, thereby reducing the concentration of an image formed by overlapping ink on two rows of nozzles at the final boundary. Fig. 16 is a diagram showing an effect obtained by filtering the first initial print data and the second initial print data at a snapshot ratio of 1:1 and alternately performing snapshot in the first initial print data and the second initial print data when all nozzles of the nLineIndex-th and nLineIndex + 1-th nozzles generate large dots.
Referring to fig. 17, an embodiment of the present invention provides a print data processing apparatus for eliminating a splice lane, including:
the position information acquisition module 10 is used for acquiring the position information of each nozzle at the boundary in the current task;
the ink discharging information acquisition module 20 is used for acquiring the ink discharging information of each nozzle at the boundary in the current task according to the position information;
and the data processing module 30 is used for filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information.
Preferably, the ink discharge information acquiring module 20 includes:
the initial printing data acquisition unit is used for acquiring first initial printing data and second initial printing data which respectively correspond to a first row of nozzles and a second row of nozzles in each nozzle at the boundary in the current task according to the position information;
a first ink discharge information acquisition unit configured to acquire first ink discharge information of all nozzles of a first line of nozzles according to the first initial print data;
and a second ink discharge information acquisition unit configured to acquire second ink discharge information of all the nozzles of a second row of nozzles based on the second initial print data.
Preferably, the data processing module 30 includes:
a snapshot ratio obtaining unit configured to determine a first snapshot ratio at which a first initial print data is subjected to filter processing based on the first ink discharge information and the second ink discharge information, or determine a first snapshot ratio at which a first initial print data is subjected to filter processing and a second snapshot ratio at which a second initial print data is subjected to filter processing based on the first ink discharge information and the second ink discharge information;
a mask template obtaining unit, configured to generate a first mask template according to the first snapshot ratio or generate a first mask template and a second mask template according to the first snapshot ratio and the second snapshot ratio, respectively and correspondingly;
and the actual data acquisition unit is used for filtering the first initial printing data according to the first mask template to obtain first actual printing data or filtering the second initial printing data according to the second mask template to obtain second actual printing data.
Preferably, the ink dots printed on the printing medium by the nozzles in the sub-job include: one of a large dot, a middle dot, a small dot and a hollow dot.
Preferably, the ink discharge information includes: one of the large points are formed on each nozzle at the boundary, the middle points are formed on each nozzle at the boundary, and the small points are formed on each nozzle at the boundary.
In addition, the print data processing method for eliminating the splice lane according to the embodiment of the present invention described in conjunction with fig. 5 may be implemented by a print data processing apparatus for eliminating the splice lane. Fig. 18 is a schematic diagram showing a hardware configuration of a print data processing apparatus for eliminating a splice lane according to an embodiment of the present invention.
The print data processing apparatus that eliminates the splice lane may include a processor 401 and a memory 402 that stores 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 the computer program instructions stored in the memory 402 to implement any one of the above-described embodiments of the print data processing method of eliminating the splice lanes.
In one example, the print data processing apparatus eliminating the splice lane may further include a communication interface 403 and a bus 410. As shown in fig. 18, the processor 401, the memory 402, and the communication interface 403 are connected by 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 print data processing method for eliminating the splice channel in the above embodiment, the embodiment of the present invention may provide a computer-readable storage medium to implement. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the above-described embodiments of a method of processing print data to eliminate a stitching lane.
In summary, the method, the device, the equipment and the medium for processing the print data for eliminating the splicing lane according to the embodiments of the present invention determine the ink discharge information of the nozzles at the boundaries by acquiring the positions of each nozzle at the boundaries of the splicing nozzles in the current task, and filter the initial print data according to the ink discharge information so that each nozzle at the boundaries has no ink dots at part of the positions, thereby reducing the problem of the splicing lane caused by the mutual overlapping of the ink droplets of two rows of nozzles at the splicing lane due to the influence of external factors.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
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 (10)
1. A printing data processing method for eliminating a splicing lane, wherein the splicing lane is formed by ink discharge of at least one nozzle at the boundary of two adjacent columns of splicing nozzles, and the method comprises the following steps:
acquiring the position information of each nozzle at the boundary formed in the current printing task;
acquiring ink discharge information of each nozzle at a boundary in the current task according to the position information;
and filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information.
2. The method for processing the print data for eliminating the splice lane according to claim 1, wherein the acquiring the ink discharge information of each nozzle at the boundary in the current job according to the position information comprises:
acquiring first initial printing data and second initial printing data corresponding to a first nozzle and a second nozzle in each nozzle at a boundary in the current task according to the position information;
acquiring first ink outlet information of all nozzles of a first nozzle according to the first initial printing data;
and acquiring second ink output information of all the nozzles of the second nozzle according to the second initial printing data.
3. The method for processing the printing data of the elimination splice channel according to claim 2, wherein the filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information comprises:
determining a first snapshot ratio for filtering first initial printing data according to the first ink outlet information and the second ink outlet information;
generating a first mask template according to the first snapshot ratio;
and filtering the first initial printing data according to the first mask template to obtain first actual printing data.
4. The method for processing the printing data of the elimination splice channel according to claim 2, wherein the filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information comprises:
determining a first snapshot ratio for filtering first initial printing data and a second snapshot ratio for filtering second initial printing data according to the first ink output information and the second ink output information;
respectively and correspondingly generating a first mask template and a second mask template according to the first snapshot ratio and the second snapshot ratio;
filtering the first initial printing data according to the first mask template to obtain first actual printing data;
and filtering the second initial printing data according to the second mask template to obtain second actual printing data.
5. The print data processing method of eliminating a splice lane according to claim 3 or 4, wherein the ink dots printed on the printing medium by the nozzles in the sub job include: one of a large dot, a middle dot, a small dot and a hollow dot.
6. The method for processing print data to eliminate a splice channel according to claim 5, wherein the ink discharge information of each nozzle at the boundary comprises: one of the large points are formed on each nozzle at the boundary, the middle points are formed on each nozzle at the boundary, and the small points are formed on each nozzle at the boundary.
7. The method as claimed in claim 6, wherein the first snapshot ratio corresponding to the case where the one nozzle at the boundary has a large dot is greater than or equal to the first snapshot ratio corresponding to the case where the one nozzle at the boundary has a medium dot, and the first snapshot ratio corresponding to the case where the one nozzle at the boundary has a medium dot is greater than or equal to the first snapshot ratio corresponding to the case where the one nozzle at the boundary has a small dot.
8. A print data processing apparatus for eliminating a splice lane, the apparatus comprising:
the position information acquisition module is used for acquiring the position information of each nozzle at the boundary in the current task;
the ink outlet information acquisition module is used for acquiring ink outlet information of each nozzle at the boundary in the current task according to the position information;
and the data processing module is used for filtering the initial printing data corresponding to each nozzle at the boundary in the current task according to the ink outlet information.
9. A print data processing apparatus that eliminates a splice lane, 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 1-7.
10. A medium having stored thereon computer program instructions, which, when executed by a processor, implement the method of any one of claims 1-7.
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