CN113934380A - Feathering processing method, device and equipment for cylinder printing and storage medium - Google Patents

Feathering processing method, device and equipment for cylinder printing and storage medium Download PDF

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Publication number
CN113934380A
CN113934380A CN202010604693.0A CN202010604693A CN113934380A CN 113934380 A CN113934380 A CN 113934380A CN 202010604693 A CN202010604693 A CN 202010604693A CN 113934380 A CN113934380 A CN 113934380A
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data
feathering
feathered
group
complementary
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CN113934380B (en
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邬海林
苏宇航
黄中琨
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Senda Shenzhen Technology Co Ltd
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Senda Shenzhen Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201Dedicated interfaces to print systems
    • G06F3/1202Dedicated interfaces to print systems specifically adapted to achieve a particular effect
    • G06F3/1203Improving or facilitating administration, e.g. print management
    • G06F3/1208Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201Dedicated interfaces to print systems
    • G06F3/1223Dedicated interfaces to print systems specifically adapted to use a particular technique
    • G06F3/1237Print job management
    • G06F3/1242Image or content composition onto a page
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201Dedicated interfaces to print systems
    • G06F3/1223Dedicated interfaces to print systems specifically adapted to use a particular technique
    • G06F3/1237Print job management
    • G06F3/1253Configuration of print job parameters, e.g. using UI at the client
    • G06F3/1257Configuration of print job parameters, e.g. using UI at the client by using pre-stored settings, e.g. job templates, presets, print styles

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Manufacturing & Machinery (AREA)
  • Ink Jet (AREA)
  • Record Information Processing For Printing (AREA)

Abstract

The invention belongs to the technical field of printing, and particularly provides a feathering processing method, a feathering processing device, feathering processing equipment and a storage medium for cylinder printing. The first printed data is subjected to feathering processing through the first feathering template and the first complementary template, and a first feathering data set and a first complementary data set are obtained. Further, the second printing data is subjected to feathering processing through a second feathering template and a second complementary template, and a second feathering data set and a second complementary data set are obtained. When the cylinder is printed, the first eclosion data set and the first complementary data set are printed at the same position, and the second eclosion data set and the second complementary data set are printed at the same position, so that mechanical errors of a printing device are diffused through multiple times of printing, and the technical problems that in the prior art, the cylinder is printed with an obvious splicing channel and an obvious Pass channel exists between Pass and Pass are solved.

Description

Feathering processing method, device and equipment for cylinder printing and storage medium
Technical Field
The present invention relates to the field of printing technologies, and in particular, to a feathering method, apparatus, device, and storage medium for cylinder printing.
Background
The cylinder printing refers to that the printing carrier is a cylinder or other cylinders, for example, a circle of patterns is printed on a cup, or a circle of trademarks is printed on a pen, and the like. Fig. 1 is a schematic diagram of a cylinder printing process according to the prior art. During printing, the nozzle 111 is fixed, and the cylinder 110 rotates in the Y direction (usually, one rotation) to complete the printing of the Pass; the head 111 is then fixed after moving a certain distance in the X direction (typically a step distance of one Pass), and the cylinder 110 is rotated again in the Y direction for printing of the next Pass. The above steps are repeated in a circulating mode until the printing is finished.
As shown in fig. 2, is an expanded view of a cylindrical print image. In the prior art, due to the reason of mechanical errors, it is difficult to ensure that the printing can be performed end to end in the Y direction, so that the problem of splicing channels always exists in cylinder printing, for example, overlapping or blank exists, so that the starting or ending position of printing can be easily seen from the appearance, and the printing effect is poor. In addition, when the spray head is required to perform moving printing of multiple passes in the X direction, due to mechanical errors, obvious Pass channels exist between every Pass, such as overlapping or blank, and the printing effect is difficult to satisfy. In summary, both the splice lane problem and the Pass lane problem severely affect the quality of the print.
In order to solve the problems of a splicing channel and a Pass channel existing in the prior art when cylinder printing is carried out, the invention diffuses errors to a wider area by carrying out feathering processing on printing data, thereby reducing the abrupt feeling of the splicing channel and the Pass channel and improving the printing quality.
Disclosure of Invention
In view of this, embodiments of the present invention provide a feathering processing method, apparatus, device and storage medium for cylinder printing, so as to solve the problem in the prior art that a stitching lane and a Pass lane exist in cylinder printing.
In a first aspect, an embodiment of the present invention provides a feathering processing method for cylinder printing, where the method includes:
s10: acquiring first printing data, wherein the first printing data comprises a first data group to be feathered and a first data group not to be feathered;
s20: generating a first emergence template and a first complementary template according to the size of the first data group to be emerged;
s30: performing feathering processing on the first printing data according to the first feathering template and the first complementary template to obtain second printing data; the second print data includes a second to-be-feathered data set and a second non-feathered data set;
s40: generating a second emergence template and a second complementary template according to the size of the second data group to be emerged;
s50: and performing feathering processing on the second printing data according to the second feathering template and the second complementary template to obtain final printing data.
Preferably, in S30, the feathering the first print data according to the first feathering template and the first complementary template to obtain second print data includes:
s31: performing feathering treatment on the first data group to be feathered according to the first feathering template to obtain a first feathering data group; performing feathering processing on the first data group to be feathered according to the first complementary template to obtain a first complementary data group;
s32: and splicing the first feathering data group, the first complementary data group and the first non-feathering data group to obtain the second printing data.
Preferably, N sets of the first feathered data set, N sets of the first complementary data set, and N +1 sets of the first non-feathered data set are included; in S32, the stitching the first feathered data set, the first complementary data set, and the first non-feathered data set to obtain second print data includes:
s321: and sequentially splicing the N +1 groups of the first non-feathering data sets, the N groups of the first feathering data sets and the N groups of the first complementary data sets according to the sequence of the 1 group of the first non-feathering data sets, the 1 group of the first feathering data sets and the 1 group of the first complementary data sets to obtain the second printing data.
Preferably, N sets of the first feathered data set, N sets of the first complementary data set, and N +1 sets of the first non-feathered data set are included; in S32, the stitching the first feathered data set, the first complementary data set, and the first non-feathered data set to obtain second print data includes:
s322: and splicing 1 group of the first eclosion data group and/or 1 group of the first complementary data group and 1 group of the first non-eclosion data group into 1 group of the second printing data, and finally splicing to obtain N +1 groups of the second printing data.
Preferably, in S50, the feathering the second print data according to the second feathering template and the second complementary template to obtain final print data includes:
s51: performing feathering treatment on the second data group to be feathered according to the second feathering template to obtain a second feathering data group; performing feathering treatment on the second data group to be feathered according to the second complementary template to obtain a second complementary data group;
s52: and splicing the second eclosion data group, the second complementary data group and the second non-eclosion data group to obtain the final printing data.
Preferably, N sets of said second feathered data sets, N sets of said second complementary data sets, and N +1 sets of said second non-feathered data sets are included; in S52, the stitching the final print data according to the second emergence data group, the second complementary data group, and the second non-emergence data group includes:
s521: and sequentially splicing the N +1 groups of the second non-feathered data sets, the N groups of the second feathered data sets and the N groups of the second complementary data sets according to the sequence of the 1 group of the second non-feathered data sets, the 1 group of the second feathered data sets and the 1 group of the second complementary data sets to obtain the final printing data.
Preferably, N sets of said second feathered data sets, N sets of said second complementary data sets, and N +1 sets of said second non-feathered data sets are included; in S52, the stitching the final print data according to the second emergence data group, the second complementary data group, and the second non-emergence data group includes:
s522: and splicing 1 group of the second eclosion data group and/or 1 group of the second complementary data group and 1 group of the second non-eclosion data group into 1 group of the final printing data, and finally splicing to obtain N +1 groups of the final printing data.
Preferably, in S10, the method includes:
s11: obtaining eclosion parameters and/or stepping distances;
s12: dividing the first printing data into the first data group to be feathered and the first data group not to be feathered according to the feathering parameter and/or the step distance.
Preferably, in S30, the method includes:
s33: obtaining eclosion parameters and/or stepping distances;
s34: dividing the second print data into the second data group to be feathered and the second data group not to be feathered according to the feathering parameter and/or the step distance.
Preferably, the first data group to be feathered is line data in the first print data and the second data group to be feathered is line data in the second print data.
Preferably, the first data group to be feathered is column data in the first print data and the second data group to be feathered is row data in the second print data.
In a second aspect, an embodiment of the present invention provides a feathering apparatus for cylinder printing, the apparatus including:
a print data acquisition module for acquiring first print data including a first to-be-feathered data set and a first non-feathered data set;
the first template generation module is used for generating a first emergence template and a first complementary template according to the size of the first data group to be emerged;
the first feathering module is used for feathering the first printing data according to the first feathering template and the first complementary template to obtain second printing data; the second print data includes a second to-be-feathered data set and a second non-feathered data set;
the second template generation module is used for generating a second emergence template and a second complementary template according to the size of the second data group to be emerged;
and the second feathering module is used for feathering the second printing data according to the second feathering template and the second complementary template to obtain final printing data.
In a third aspect, an embodiment of the present invention provides a printing apparatus, 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 conclusion, the beneficial effects of the invention are as follows:
according to the feathering method, the feathering device, the feathering equipment and the storage medium for cylinder printing provided by the embodiment of the invention, feathering is carried out on first printing data through the first feathering template and the first complementary template to obtain second printing data, and then feathering is carried out on the second printing data through the second feathering template and the second complementary template to obtain final printing data. Thus, the final print data includes 4 feathered data sets, respectively, a data set resulting from feathering using the first feathering template, a data set resulting from feathering using the first complementary template, a data set resulting from feathering using the second feathering template, and a data set resulting from feathering using the second complementary template. When the final printing data is used for printing, a data set obtained by feathering the same data set to be feathered is usually printed in the same area (namely, the data set obtained by feathering by using a first feathering template and the data set obtained by feathering by using a first complementary template are printed in the same area, and the data set obtained by feathering by using a second feathering template and the data set obtained by feathering by using a second complementary template are printed in the same area), so that the mechanical error of the printing equipment is diffused through multiple times of printing, and the technical problems that in the prior art, cylinder printing has an obvious splicing channel and an obvious Pass channel exists between Pass and Pass are solved.
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, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.
Fig. 1 is a schematic diagram of a cylinder printing in the prior art.
FIG. 2 is an expanded schematic view of a prior art cylindrical print image.
Fig. 3 is a schematic flow chart of a feathering processing method for cylinder printing according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of first print data according to an embodiment of the present invention.
FIG. 5 is a schematic diagram of a first feathering template and a first complementary template provided by embodiments of the present invention.
Fig. 6A is a schematic diagram of a feathering process according to an embodiment of the present invention.
FIG. 6B is a schematic diagram of another feathering process provided by embodiments of the present invention.
Fig. 7 is a schematic diagram of second print data according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of another second print data according to an embodiment of the present invention.
FIG. 9 is a schematic diagram of a second feathering template and a second complementary template provided by embodiments of the present invention.
FIG. 10A is a schematic diagram of another feathering process provided by embodiments of the present invention.
FIG. 10B is a schematic diagram of another feathering process provided by embodiments of the present invention.
Fig. 11A is a schematic diagram of final print data according to an embodiment of the present invention.
Fig. 11B is a schematic diagram of another final print data according to an embodiment of the present invention.
Fig. 12 is a schematic diagram of another first print data according to an embodiment of the present invention.
FIG. 13 is a schematic diagram of another first feathering template and a first complementary template provided by embodiments of the present invention.
FIG. 14A is a schematic diagram of another feathering process provided by embodiments of the present invention.
FIG. 14B is a schematic diagram of another feathering process provided by embodiments of the present invention.
Fig. 15 is a schematic diagram of another second print data according to an embodiment of the present invention.
FIG. 16 is a schematic diagram of an alternative second feathering template and second complementary template provided by embodiments of the present invention.
FIG. 17A is a schematic diagram of another feathering process provided by embodiments of the present invention.
FIG. 17B is a schematic diagram of another feathering process provided by embodiments of the present invention.
Fig. 18A is a schematic diagram of another final print data according to an embodiment of the present invention.
Fig. 18B is a schematic diagram of another final print data according to an embodiment of the present invention.
Fig. 19 is a schematic structural diagram of an feathering apparatus for printing a cylinder according to an embodiment of the present invention.
Fig. 20 is a schematic structural diagram of a printing apparatus 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.
It should be particularly noted that the data such as "first print data", "second print data", "final print data", and the templates such as "first emerging template", "first complementary template", "second emerging template", and "second complementary template" referred to herein refer to data in the form of tensors, for example, two-dimensional tensor data (i.e., matrix). The data sets referred to herein as "first non-feathered data set", "first to-be-feathered data set", "first complementary data set", "second non-feathered data set", "second to-be-feathered data set", "second complementary data set", and the like refer to row data or column data in tensor data. The dimensions, lengths and widths of the data, templates, and data sets referred to herein may refer to the number of rows or columns of tensor data. The row data refers to the number of rows of the data set being not less than the number of columns, and the column data refers to the number of columns of the data set being not less than the number of rows.
Fig. 1 is a schematic diagram of a cylinder printing process in the prior art. The printing device comprises a spray head 111, and the spray head 111 is movably arranged on the cross beam. The print medium is a cylinder 110, and the cylinder 110 may be a cylinder or other cylinder, such as a cup, a pen, etc.
When the cylinder printing is performed, the nozzle 111 is fixed, the cylinder 110 rotates along the Y direction, in the process, the nozzle 111 is kept to perform ink jetting, and when the cylinder 110 rotates along the Y direction for one circle, the current Pass printing is completed. Then, the head 111 is controlled to move a certain distance in the X direction to perform the next Pass printing, and the above-mentioned operation is repeated cyclically to complete the printing of the entire cylinder 110.
Referring to fig. 2, in this manner, when the printing of the cylinder is performed, due to a mechanical error of the printing apparatus, such as an error of a motor controlling the head 111 to perform stepping or an error of a motor controlling the cylinder 110 to rotate, the head-to-tail joint lanes inevitably occur in the Y direction in the printed image, and the Pass lane between Pass and Pass inevitably occurs in the X direction in the printed image. In particular, when the head 111 needs to move in the X direction a plurality of times to perform printing, the plurality of Pass passes greatly affects the quality of printed images.
In order to solve the above problem, an embodiment of the present invention provides a feathering method for cylinder printing. Fig. 3 is a schematic flow chart of a feathering method for printing a cylinder according to an embodiment of the present invention, which includes the following steps.
Step S10: first print data is acquired, the first print data including a first to-be-feathered data set and a first non-feathered data set. Specifically, the first printing data is obtained by converting an image matrix to be printed. For example, halftone techniques may be employed to matrix-screen convert the image to be printed into the first print data. The halftone technique is to quantize a continuous tone image into a binary image or a color image with only a few colors by using a small number of colors, and the difference between the visual effect of the quantized image at a certain distance and the original image is small. In the prior art, algorithms such as dithering method, error diffusion method and iteration method are commonly used to realize halftone technique, and since these algorithms belong to the prior art, it is not redundant here.
Fig. 4 is a schematic diagram of first print data 10 according to an embodiment of the present invention. The first print data 10 has a length a and a width B. In one embodiment of the present invention, the first data to be feathered and the first data not to be feathered are obtained by dividing the first print data by obtaining the feathering parameters and the step distance. The printing parameters may include a feathering length and a feathering width, and the step distance refers to the length of each Pass printing data. For example, if the step distance is a/4, the feathering length is a, and the feathering width is b, the first print data 10 may be divided into 4 passes, and the print data of each Pass includes the first to-be-feathered data group 11 and the first non-feathered data group 12. The first print data 10 includes 3 first to-be-feathered data groups 11 and 4 first non-feathered data groups 12 in total. Where the length of the first data group to be feathered 11 is a and the width of the first data group to be feathered 11 is b. Further, the width and length of first data group to be feathered 11 can be adjusted as needed, and in a preferred embodiment of the present invention, the width B of first data group to be feathered 11 is not greater than the width B of first print data 10, and the length a of first data group to be feathered 11 is not greater than the length of each Pass, i.e., not greater than a/4.
Step S20: a first feathering template and a first complementary template are generated based on the size of the first to-be-feathered data set. Wherein the size of the first to-be-feathered data set includes a length and a width. Specifically, please refer to fig. 5, which is a schematic diagram of a first feathering template 20 and a first complementary template 30 according to an embodiment of the present invention. Wherein, the length of the first feathering template 20 is a, and the width of the first feathering template 20 is b; the first complementary template 30 has a length a and the first complementary template 30 has a width b. In a preferred embodiment of the present invention, the sum of the first feathering template 20 and the first complementary template 30 is an identity matrix, which is a matrix in which all of the elements are 1.
Step S30: performing feathering processing on the first printing data according to a first feathering template and a first complementary template to obtain second printing data; the second print data includes a second data group to be feathered and a second data group that is not feathered. In one embodiment, the feathering includes feathering the first to-be-feathered data set according to a first feathering template to obtain a first feathered data set, and feathering the first to-be-feathered data set according to a first complementary template to obtain a first complementary data set.
Specifically, referring to fig. 6A and 6B, a first to-be-feathered data group 11 is feathered according to a first feathering template 20 to obtain a first feathered data group 13; the first to-be-feathered data set 11 is feathered according to the first complementary template 30, resulting in a first complementary data set 14. Wherein, the feathering refers to performing a phase and operation. Thus, through this step, a total of 3 first feathered data sets 13 and 3 first complementary data sets 14 are obtained. For convenience of description, 3 first emergence data sets 13 are respectively denoted as a first emergence data set 13 of the 1 st Pass, a first emergence data set 13 of the 2 nd Pass, and a first emergence data set 13 of the 3 rd Pass; the 3 first complementary data sets 14 are respectively denoted as a first complementary data set 14 of the 1 st Pass, a first complementary data set 14 of the 2 nd Pass, and a first complementary data set 14 of the 3 rd Pass.
In the embodiment of the present invention, at least 2 ways are provided to combine the first feathered data set 13, the first complementary data set 14, and the first non-feathered data set 12 to obtain the second print data.
Referring to fig. 7, one way is to combine 4 first non-feathered data sets 12, 3 first feathered data sets 13, and 3 first complementary data sets 14 in sequence according to the sequence of 1 first non-feathered data set 12, 1 first feathered data set 13, and 1 first complementary data set 14, so as to obtain second print data 40. In particular, when the stitching is performed, the stitching is performed generally in the order of the first print data 10, that is, the first non-feathered data group 12 of the 1 st Pass, the first feathered data group 13 of the 1 st Pass, the first complementary data group 14 of the 1 st Pass, the first non-feathered data group 12 of the 2 nd Pass, the first feathered data group 13, … … of the 2 nd Pass, and the first non-feathered data group 12 of the 4 th Pass. Obviously, the length of the second print data 40 is a +3a, and the width of the second print data 40 is B. In one embodiment of the present invention, the second print data may be divided by obtaining the feathering parameters to obtain a second data group to be feathered and a second data group not to be feathered, for example, if the feathering length is a +3a and the feathering width is c, the second print data 40 may be divided into a second data group to be feathered 41 and a second data group not to be feathered 42. Wherein the length of the second data group to be feathered 41 is a +3a, and the width of the second data group to be feathered 41 is c. In a preferred embodiment of the invention, c is generally not greater than B.
Referring to fig. 8, in another embodiment of the present invention, a plurality of second print data may be obtained by combining. For example, the first non-feathered data group 12 of the 1 st Pass and the first feathered data group 13 of the 1 st Pass are sequentially spliced to obtain the second print data of the 1 st Pass; splicing a first complementary data group 14 of the 1 st Pass, a first non-feathering data group 12 of the 2 nd Pass and a first feathering data group 13 of the 2 nd Pass in sequence to obtain second printing data of the 2 nd Pass; splicing a first complementary data group 14 of a 2 nd Pass, a first non-feathering data group 12 of a 3 rd Pass and a first feathering data group 13 of the 3 rd Pass in sequence to obtain second printing data of the 3 rd Pass; and sequentially splicing the first complementary data group 14 of the 3 rd Pass and the first non-feathered data group 12 of the 4 th Pass to obtain second printing data of the 4 th Pass. Each of the second print data shown in fig. 8 includes a second data group to be feathered 41 and a second data group to be non-feathered 42.
Step S40: and generating a second feathering template and a second complementary template according to the size of the second data group to be feathered. Wherein the size of the second data set to be feathered includes a length and a width. Specifically, please refer to fig. 9, which is a schematic diagram of a second feathering template 50 and a second complementary template 60 according to an embodiment of the present invention. Wherein the length of the second feathering template 50 is a +3a, and the width of the second feathering template 50 is c; the second complementary template 60 has a length A +3a and the second complementary template 60 has a width c. In a preferred embodiment of the present invention, the sum of the second feathering template 50 and the second complementary template 60 is an identity matrix, which is a matrix in which all elements are 1.
It is apparent that, when the technical solution of stitching to obtain a plurality of second print data as shown in fig. 8 is adopted, the lengths of the second feathering template and the second complementary template may be set to be the same as the lengths of the respective second print data.
Step S50: and performing feathering processing on the second printing data according to the second feathering template and the second complementary template to obtain final printing data. And the feathering treatment comprises the steps of feathering the second data group to be feathered according to the second feathering template to obtain a second feathering data group, and feathering the second data group to be feathered according to the second complementary template to obtain a second complementary data group. Specifically, referring to fig. 10A and 10B, a second to-be-feathered data set 41 is feathered according to a second feathering template 50 to obtain a second feathered data set 43, and a second to-be-feathered data set 41 is feathered according to a second complementary template 60 to obtain a second complementary data set 44. Wherein, the feathering refers to performing a phase and operation. Through this step, 1 second feathered data set 43 and 1 second complementary data set 44 are obtained.
It is obvious that, when the technical scheme of piecing together a plurality of second print data as shown in fig. 8 is adopted, the second to-be-feathered data group 41 of 4 second print data is feathered, resulting in 4 second feathered data groups 43 and 4 second complementary data groups 44.
Further, the second feathered data group 43, the second complementary data group 44, and the second non-feathered data group 42 are merged to obtain final print data. Specifically, referring to fig. 11A, the second feathered data set 43, the second non-feathered data set 42, and the second complementary data set 44 are pieced together in sequence to obtain the final print data 70.
When the technical solution of stitching a plurality of second print data as shown in fig. 8 is adopted, please refer to fig. 11B, a second feathering data group 43, a second non-feathering data group 42, and a second complementary data group 44 are sequentially stitched to obtain 4 final print data.
It is apparent that, in the above-described embodiment, the first data group to be feathered 11 is the column data in the first print data 10, and the second data group to be feathered 41 is the line data in the second print data 40.
When the final print data is used to print the cylinder, the circumference of one circle of the cylinder in the Y direction is B, so that when the second circle of the cylinder is printed, the second complementary region corresponding to the second complementary data group 44 and the second eclosion region corresponding to the second eclosion data group 43 are printed at the same position of the cylinder, thereby eliminating the splicing trace in the Y direction during the printing of the cylinder as much as possible. In the X direction, the first feathering area corresponding to the first feathering data group 13 and the first complementary area corresponding to the first complementary data group 14 of the same Pass are printed at the same position. Specifically, in a preferred embodiment of the present invention, when the 1 st Pass printing is performed, the first non-feathered data group 12 of the 1 st Pass and the first feathered data group 13 of the 1 st Pass are printed; when the 2 nd Pass printing is carried out, a first complementary data group 14 of the 1 st Pass, a first non-feather data group 12 of the 2 nd Pass and a first feather data group 13 of the 2 nd Pass are printed, the first feather data group 13 of the 1 st Pass and the first complementary data group 14 of the 1 st Pass are printed at the same position, and according to the mode, 4 passes are printed, so that Pass channels in the X direction during the cylinder printing are eliminated as much as possible.
In another embodiment of the present invention, the feathering method can be applied to a printing method in which a cylinder rotates and a head moves. When the printing mode is adopted, 1 Pass of the print data is acquired every time, printing is carried out in the process that the cylinder rotates and the spray head moves, and the Pass channel of the developed image of the print image is oblique lines or curves. By adopting the feathering processing method of the invention, 1 piece of print data of the Pass is acquired from the final print data each time, the print data of the Pass comprises the first feathering data group and the first complementary data group, and when the printing is carried out, as mentioned above, the first feathering data group and the first complementary data group are printed at the same position, thereby eliminating the Pass lane of the inclined line or the curve.
The present invention also provides another feathering method for cylinder printing, please continue to refer to fig. 3.
Step S10: first print data is acquired, the first print data including a first to-be-feathered data set and a first non-feathered data set. Specifically, the method of acquiring the first print data is not substantially different from the above embodiment, and it will not be described again here. Fig. 12 is a schematic diagram of another first print data 100 according to an embodiment of the present invention. The first print data 100 has a length a and a width B, and includes a total of 4 passes of print data. In one embodiment of the present invention, the first print data 100 may be divided into the first data group to be feathered and the first data group not to be feathered by acquiring the feathering parameters. For example, the feathering length is a and the feathering width is b, the first print data 100 may be divided into the first data group to be feathered 101 and the first data group not to be feathered 102. The first to-be-feathered data group 101 has a length a and a width b.
Step S20: a first feathering template and a first complementary template are generated based on the size of the first to-be-feathered data set. Wherein the size of the first to-be-feathered data set includes its length and width. Specifically, please refer to fig. 13, which is a schematic diagram of a first feathering template 120 and a first complementary template 130 according to an embodiment of the present invention. Wherein, the first feathering template 120 has a length a and a width b; first complementary template 130 has a length a and a width b. In a preferred embodiment of the present invention, the sum of the first feathering template 120 and the first complementary template 130 is an identity matrix, which is a matrix in which all elements are 1.
Step S30: performing feathering processing on the first printing data according to a first feathering template and a first complementary template to obtain second printing data; the second print data includes a second data group to be feathered and a second data group that is not feathered. The feathering treatment comprises the steps of feathering the first data group to be feathered according to the first feathering template to obtain a first feathering data group, and feathering the first data group to be feathered according to the first complementary template to obtain a first complementary data group. Specifically, referring to fig. 14A and 14B, a first to-be-feathered data group 101 is feathered according to a first feathering template 120 to obtain a first feathered data group 103; the first to-be-feathered data set 101 is feathered according to the first complementary template 130, resulting in a first complementary data set 104. The feathering refers to performing a phase and operation. Thus, 1 first feathered data set 103 and 1 first complementary data set 104 are obtained through this step.
Further, the first feathered data group 103, the first complementary data group 104, and the first non-feathered data group 102 are pieced together to obtain second print data. Specifically, stitching is performed in the order of the first feathered data group 103, the first non-feathered data group 102, and the first complementary data group 104 in this order, resulting in the second print data 200 as shown in fig. 15. The second print data 200 includes print data of 4 passes in total, and the length of the second print data 200 is a and the width is B + B. In one embodiment of the present invention, the second print data may be divided into the second data group to be feathered and the second data group not to be feathered by acquiring the step distance and the feathering parameter. For example, a step distance of a/4, a feathering length of a, and a feathering width of B + B, a total of 3 second data groups 201 to be feathered and 4 second data groups 202 not to be feathered can be divided. The length of the second data set 201 to be feathered is a and the width thereof is B + B.
In another embodiment of the present invention, the data of each Pass may be separately feathered, so as to obtain the first feathered data set and the first complementary data set of each Pass. In this embodiment, the length of the first feathering template 120 and the first complementary template 130 may be set to a/4 and the width may be set to b.
Step S40: and generating a second feathering template and a second complementary template according to the size of the second data group to be feathered. Specifically, please refer to fig. 16, which is a schematic diagram of a second feathering template 220 and a second complementary template 230 according to an embodiment of the present invention. The second feathering template 220 has a length a and a width B + B; the second complementary template 230 has a length a and a width B + B. In a preferred embodiment of the present invention, the sum of the second feathering template 220 and the second complementary template 230 is an identity matrix, which is a matrix in which all elements are 1.
S50: and performing feathering processing on the second printing data according to the second feathering template and the second complementary template to obtain final printing data. And the feathering treatment comprises the steps of feathering the second data group to be feathered according to the second feathering template to obtain a second feathering data group, and feathering the second data group to be feathered according to the second complementary template to obtain a second complementary data group. Specifically, referring to fig. 17A and 17B, a second to-be-feathered data set 201 is feathered according to a second feathering template 220 to obtain a second feathered data set 203, and a second to-be-feathered data set 201 is feathered according to a second complementary template 230 to obtain a second complementary data set 204. The feathering refers to performing a phase and operation. Through this step, 3 second feathered data sets 203 and 3 second complementary data sets 204 are obtained.
For convenience of description, 3 second emergence data groups 203 are respectively denoted as a second emergence data group 203 of 1 st Pass, a second emergence data group 203 of 2 nd Pass, and a second emergence data group 203 of 3 rd Pass. The 3 second complementary data sets 204 are respectively denoted as a second complementary data set 204 of the 1 st Pass, a second complementary data set 204 of the 2 nd Pass, and a second complementary data set 204 of the 3 rd Pass. The 4 second non-feather data sets 202 are respectively denoted as a second non-feather data set 202 of the 1 st Pass, a second non-feather data set 202 of the 2 nd Pass, a second non-feather data set 202 of the 3 rd Pass, and a second non-feather data set 202 of the 4 th Pass.
In the embodiment of the present invention, at least 2 schemes are provided to combine the second feathered data set 203, the second complementary data set 204, and the second non-feathered data set 202 to obtain final print data.
Specifically, in an embodiment of the present invention, 4 second non-feathered data sets 202, 3 second feathered data sets 203, and 3 second complementary data sets 204 may be combined in the order of 1 second non-feathered data set 202, 1 second feathered data set 203, and 1 second complementary data set 204 to obtain the final print data as shown in fig. 18A. Specifically, during the stitching, the second non-feather data group 202 of the 1 st Pass, the second feather data group 203 of the 1 st Pass, the second complementary data group 204 of the 1 st Pass, the second non-feather data group 202 of the 2 nd Pass, the second feather data group 203 of the 2 nd Pass, the second complementary data group 204 of the 2 nd Pass, the second non-feather data group 202 of the 3 rd Pass, the second feather data group 203 of the 3 rd Pass, the second complementary data group 204 of the 3 rd Pass, and the second non-feather data group 202 of the 4 th Pass are sequentially stitched.
In another embodiment of the present invention, the data of each Pass may be pieced together separately to obtain the final print data as shown in fig. 18B. Specifically, the second non-feathered data group 202 of the 1 st Pass and the second feathered data group 203 of the 1 st Pass are sequentially merged to obtain the final print data of the 1 st Pass. And sequentially splicing the second complementary data group 204 of the 1 st Pass, the second non-feather data group 202 of the 2 nd Pass and the second feather data group 203 of the 2 nd Pass to obtain the final printing data of the 2 nd Pass. And sequentially splicing the second complementary data group 204 of the 2 nd Pass, the second non-feather data group 202 of the 3 rd Pass and the second feather data group 203 of the 3 rd Pass to obtain the final printing data of the 3 rd Pass. And sequentially splicing the second complementary data group 204 of the 3 rd Pass and the second non-feathered data group 202 of the 4 th Pass to obtain the final printing data of the 4 th Pass.
It is apparent that, in the above-described embodiment, the first data group to be feathered 101 is line data in the first print data 100, and the second data group to be feathered 201 is line data in the second print data 200.
When the final print data is used for printing the cylinder, the circumference of one circle of the cylinder in the Y direction is B, so that when the second circle of the cylinder is printed, the first complementary region corresponding to the first complementary data group 104 and the first eclosion region corresponding to the first eclosion data group 103 are printed at the same position of the cylinder, and the splicing trace in the Y direction during the printing of the cylinder is eliminated as much as possible. In the X direction, the second emergence region corresponding to the second emergence data group 203 and the second complementary region corresponding to the second complementary data group 204 of the same Pass are printed at the same position. Specifically, in a preferred embodiment of the present invention, when the 1 st Pass printing is performed, the second non-feathered data group 202 of the 1 st Pass and the second feathered data group 203 of the 1 st Pass are printed; when the 2 nd Pass printing is performed, the second complementary data group 204 of the 1 st Pass, the second non-feathered data group 202 of the 2 nd Pass, and the second feathered data group 203 of the 2 nd Pass are printed, and the second feathered data group 203 of the 1 st Pass and the second complementary data group 204 of the 1 st Pass are printed at the same position, and according to the mode, 4 passes are printed, thereby eliminating the Pass channel in the X direction when the cylinder printing is performed as much as possible.
Referring to fig. 19, a feathering apparatus for cylinder printing according to an embodiment of the present invention is provided, and the feathering apparatus includes: a print data acquisition module 310, a first template generation module 320, a first feathering module 330, a second template generation module 340, and a second feathering module 350.
The print data acquiring module 310 is configured to acquire first print data, where the first print data includes a first to-be-feathered data set and a first non-feathered data set.
The first template generating module 320 is configured to generate a first feathering template and a first complementary template according to the size of the first to-be-feathered data set.
The first feathering module 330 is configured to perform feathering on the first print data according to the first feathering template and the first complementary template to obtain second print data, where the second print data includes a second data group to be feathered and a second data group that is not feathered.
The second template generating module 340 is configured to generate a second feathering template and a second complementary template according to the size of the second data group to be feathered.
The second feathering module 350 is configured to perform feathering on the second print data according to the second feathering template and the second complementary template, so as to obtain final print data.
In addition, the feathering processing method for cylinder printing of the embodiment of the present invention described in conjunction with fig. 3 may be implemented by a printing apparatus. Fig. 20 is a schematic diagram showing a hardware configuration of a printing apparatus according to an embodiment of the present invention.
The printing device may include a processor and a memory storing computer program instructions.
In particular, the processor may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits that may be configured to implement embodiments of the present invention.
The memory may include mass storage for data or instructions. By way of example, and not limitation, memory may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. The memory may include removable or non-removable (or fixed) media, where appropriate. The memory may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory is non-volatile solid-state memory. In a particular embodiment, the memory includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.
The processor reads and executes the computer program instructions stored in the memory to realize any one of the feathering processing methods for cylinder printing in the above embodiments.
In one example, the printing device may also include a communication interface and a bus. As shown in fig. 20, the processor, the memory, and the communication interface are connected by a bus to complete communication therebetween.
The communication interface is mainly used for realizing communication among modules, devices, units and/or equipment in the embodiment of the invention.
The bus includes hardware, software, or both that couple the components of the printing device to one another. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. A bus may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
In addition, in combination with the feathering processing method for cylinder printing in the above embodiments, embodiments of the present invention can 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 any of the above-described embodiments of feathering methods for cylinder printing.
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.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
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 (14)

1. A feathering method for cylinder printing, the method comprising:
s10: acquiring first printing data, wherein the first printing data comprises a first data group to be feathered and a first data group not to be feathered;
s20: generating a first emergence template and a first complementary template according to the size of the first data group to be emerged;
s30: performing feathering processing on the first printing data according to the first feathering template and the first complementary template to obtain second printing data; the second print data includes a second to-be-feathered data set and a second non-feathered data set;
s40: generating a second emergence template and a second complementary template according to the size of the second data group to be emerged;
s50: and performing feathering processing on the second printing data according to the second feathering template and the second complementary template to obtain final printing data.
2. The feathering method for cylinder printing according to claim 1, wherein the feathering the first print data according to the first feathering template and the first complementary template to obtain second print data in S30 comprises:
s31: performing feathering treatment on the first data group to be feathered according to the first feathering template to obtain a first feathering data group; performing feathering processing on the first data group to be feathered according to the first complementary template to obtain a first complementary data group;
s32: and splicing the first feathering data group, the first complementary data group and the first non-feathering data group to obtain the second printing data.
3. The feathering method for cylinder printing according to claim 2, comprising N sets of the first feathering data set, N sets of the first complementary data set, and N +1 sets of the first non-feathering data set; in S32, the stitching the first feathered data set, the first complementary data set, and the first non-feathered data set to obtain second print data includes:
s321: and sequentially splicing the N +1 groups of the first non-feathering data sets, the N groups of the first feathering data sets and the N groups of the first complementary data sets according to the sequence of the 1 group of the first non-feathering data sets, the 1 group of the first feathering data sets and the 1 group of the first complementary data sets to obtain the second printing data.
4. The feathering method for cylinder printing according to claim 2, comprising N sets of the first feathering data set, N sets of the first complementary data set, and N +1 sets of the first non-feathering data set; in S32, the stitching the first feathered data set, the first complementary data set, and the first non-feathered data set to obtain second print data includes:
s322: and splicing 1 group of the first eclosion data group and/or 1 group of the first complementary data group and 1 group of the first non-eclosion data group into 1 group of the second printing data, and finally splicing to obtain N +1 groups of the second printing data.
5. The feathering method for cylinder printing according to claim 1, wherein the feathering the second print data according to the second feathering template and the second complementary template to obtain final print data in S50 comprises:
s51: performing feathering treatment on the second data group to be feathered according to the second feathering template to obtain a second feathering data group; performing feathering treatment on the second data group to be feathered according to the second complementary template to obtain a second complementary data group;
s52: and splicing the second eclosion data group, the second complementary data group and the second non-eclosion data group to obtain the final printing data.
6. The feathering method for cylinder printing according to claim 5, which comprises N sets of the second feathering data set, N sets of the second complementary data set, and N +1 sets of the second non-feathering data set; in S52, the stitching the final print data according to the second emergence data group, the second complementary data group, and the second non-emergence data group includes:
s521: and sequentially splicing the N +1 groups of the second non-feathered data sets, the N groups of the second feathered data sets and the N groups of the second complementary data sets according to the sequence of the 1 group of the second non-feathered data sets, the 1 group of the second feathered data sets and the 1 group of the second complementary data sets to obtain the final printing data.
7. The feathering method for cylinder printing according to claim 5, which comprises N sets of the second feathering data set, N sets of the second complementary data set, and N +1 sets of the second non-feathering data set; in S52, the stitching the final print data according to the second emergence data group, the second complementary data group, and the second non-emergence data group includes:
s522: and splicing 1 group of the second eclosion data group and/or 1 group of the second complementary data group and 1 group of the second non-eclosion data group into 1 group of the final printing data, and finally splicing to obtain N +1 groups of the final printing data.
8. The feathering processing method for cylinder printing according to any one of claims 1 to 7, comprising, in S10:
s11: obtaining eclosion parameters and/or stepping distances;
s12: dividing the first printing data into the first data group to be feathered and the first data group not to be feathered according to the feathering parameter and/or the step distance.
9. The feathering processing method for cylinder printing according to any one of claims 1 to 7, comprising, in S30:
s33: obtaining eclosion parameters and/or stepping distances;
s34: dividing the second print data into the second data group to be feathered and the second data group not to be feathered according to the feathering parameter and/or the step distance.
10. The feathering method for cylinder printing according to any one of claims 1 to 7, wherein the first data group to be feathered is line data in the first print data and the second data group to be feathered is column data in the second print data.
11. The feathering method for cylinder printing according to any one of claims 1 to 7, wherein the first data group to be feathered is column data in the first print data and the second data group to be feathered is row data in the second print data.
12. An feathering apparatus for cylinder printing, comprising:
a print data acquisition module for acquiring first print data including a first to-be-feathered data set and a first non-feathered data set;
the first template generation module is used for generating a first emergence template and a first complementary template according to the size of the first data group to be emerged;
the first feathering module is used for feathering the first printing data according to the first feathering template and the first complementary template to obtain second printing data; the second print data includes a second to-be-feathered data set and a second non-feathered data set;
the second template generation module is used for generating a second emergence template and a second complementary template according to the size of the second data group to be emerged;
and the second feathering module is used for feathering the second printing data according to the second feathering template and the second complementary template to obtain final printing data.
13. A printing apparatus, 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 1-11.
14. A storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-11.
CN202010604693.0A 2020-06-29 2020-06-29 Eclosion processing method, device, equipment and storage medium for cylindrical printing Active CN113934380B (en)

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CN108327403A (en) * 2018-01-17 2018-07-27 森大(深圳)技术有限公司 More spray nozzle abnormal compensating method, apparatus, equipment and storage medium
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