CN114454636A - Method, device and equipment for printing images by color register offset positioning and storage medium - Google Patents
Method, device and equipment for printing images by color register offset positioning and storage medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after 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
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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Abstract
The invention discloses a method, a device and equipment for positioning and printing color register offset of an image and a storage medium, and relates to the technical field of ink-jet printing. The method obtains the corresponding color register printing data template according to the offset angle of the actual placing position of the printing stock relative to the standard placing position for printing, and because the color register printing data template is generated in advance, the corresponding template is directly obtained according to the offset angle during printing and is sent to the spray head for printing, and compared with the scheme that the color register printing data template is sent to the spray head for printing after the rotation processing of the covering layer printing data is carried out according to the offset angle during printing, the data processing time during printing is saved, and the printing speed and the printing efficiency are improved.
Description
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to a method, a device and equipment for positioning and printing color register offset of an image and a storage medium.
Background
In industrial printing, in order to improve the effect of image printing, a layer of printing ink layer such as gloss oil, gold stamping and the like is covered on all or part of the existing image, so that the image is brighter or has special effects such as 3D and the like. This existing image is referred to as an image to be registered. Since the ink is ejected onto the image by the printing device after the image is printed, as shown in fig. 1, when the printing material bearing the image is placed on the printing platform, and the placement position of the printing material is deviated or shifted from the standard placement position, misregistration between the ink covering layers such as varnish and gold stamping and the image to be color registered will be caused, that is, the image data corresponding to the varnish and the gold stamping are not printed on the correct image position, thereby causing printing errors. In order to solve the problem of inaccurate color registration of ink coverage printing, in the prior art, the offset angle of a printing stock is acquired during printing, and then the printing data of a corresponding covering layer is subjected to rotation processing according to the offset angle.
Disclosure of Invention
In view of this, embodiments of the present invention provide an image color register, shift, position and print method, apparatus, device and storage medium, so as to solve the problem in the prior art that the efficiency of performing color register, shift, position and print on an image by gloss oil, gold stamping, and the like is low.
In a first aspect, an embodiment of the present invention provides an image color register offset positioning printing method, where the method includes:
acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position, wherein the surface of the printing stock is to be subjected to color register;
acquiring a corresponding color register printing data template according to the offset angle;
and controlling a spray head to spray ink to a specified area on the image to be subjected to color register according to the color register printing data template.
Preferably, the acquiring the offset angle of the actual placement position of the printing material relative to the standard placement position comprises:
acquiring a positioning mark in the standard placement position and recording the positioning mark as a standard positioning mark;
acquiring a positioning mark in the printing stock, and recording the positioning mark as an actual positioning mark;
and acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position according to the standard positioning mark and the actual positioning mark.
Preferably, before the acquiring the corresponding color process printing data template according to the offset angle, the method further comprises:
setting an angle offset range;
acquiring a plurality of preset offset angles according to the angle offset range;
generating a plurality of chromatography printing data templates according to the preset offset angle;
and establishing a mapping relation between the preset offset angles and the plurality of chromatography printing data templates, and recording the mapping relation as a first mapping relation.
Preferably, the acquiring the corresponding color register printing data template according to the offset angle comprises:
and acquiring a color register printing data template corresponding to the offset angle according to the first mapping relation.
Preferably, the angular offset range is [ -0.5 °, 0.5 ° ].
Preferably, the method further comprises, after the inkjet printing according to the process printing data template:
calibrating the angle deviation range according to the deviation angle to obtain a new angle deviation range;
acquiring a plurality of new preset offset angles according to the new angle offset range;
acquiring a plurality of new chromatography printing data templates according to the new preset offset angle;
establishing a mapping relation between the plurality of new preset offset angles and the plurality of new chromatography printing data templates, and recording the mapping relation as a second mapping relation;
and acquiring a new color register printing data template according to the second mapping relation for ink-jet printing.
Preferably, the first mapping relationship and the second mapping relationship are one-to-one or many-to-one mapping relationships.
In a second aspect, an embodiment of the present invention provides an image color register offset positioning printing apparatus, the apparatus including:
the offset angle acquisition module is used for acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position, wherein the surface of the printing stock is provided with an image to be subjected to color register;
the template acquisition module is used for acquiring a corresponding color register printing data template according to the offset angle;
and the printing module is used for controlling a spray head to spray ink to a specified area on the image to be subjected to color register according to the color register printing data template.
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 image color register offset positioning printing method, the device, the equipment and the storage medium, the corresponding color register printing data template is obtained according to the offset angle of the actual placing position of the printing stock relative to the standard placing position for printing, because the color register printing data template is generated in advance, the corresponding template is directly obtained according to the offset angle during printing and is sent to the spray head for printing, and compared with the scheme that the printing is carried out after the rotation processing of the covering layer printing data is carried out according to the offset angle during printing, the data processing time during printing is saved, and the printing speed and the printing efficiency are improved.
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 transmission offset of an actual placement position of a printing material relative to a standard placement position in the background art.
FIG. 2 is a flowchart illustrating an image color register offset positioning printing method according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of one-to-one correspondence between offset angles and color register print data template numbers according to an embodiment of the present invention.
FIG. 4a is a schematic diagram illustrating an embodiment of the present invention with a positive offset angle.
FIG. 4b is a schematic diagram of an embodiment of the present invention in which the offset angle is negative.
FIG. 5 is a schematic diagram of an image registration shift register printing apparatus according to an embodiment of the present invention.
Fig. 6 is a schematic configuration diagram of a printing apparatus of 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.
Example one
The embodiment of the invention provides an image color register offset positioning printing method which is suitable for a gloss oil machine, a gold stamping machine or printing equipment with functions of gloss oil printing, gold stamping printing and the like. These devices form a cover layer by ejecting ink such as gloss oil, gold stamping, etc. onto an image, so that the image exhibits special effects such as more beautiful or 3D.
Referring to fig. x, the method specifically includes the following steps:
s1: acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position, wherein the surface of the printing stock is to be subjected to color register;
s2: acquiring a corresponding color register printing data template according to the offset angle;
s3: and controlling a spray head to spray ink to a specified area on the image to be subjected to color register according to the color register printing data template.
Specifically, since the printing device ejects the ink onto the image to be color-registered, when the printing material carrying the image to be color-registered is placed on the printing platform, the position of the printing material is deviated or shifted from the standard placement position, which may cause color misregistration when the ink is printed on the image to be color-registered. For this purpose, the offset angle of the printing material needs to be acquired. As shown in fig. 1, the offset angle of the printing material refers to an angle a that the actual placement position of the printing material is offset from the standard placement position, and as shown in fig. 1, when the printing material is placed at the standard placement position, one edge (or image edge) of the printing material should be parallel to the printing direction, and the other edge should be parallel to the height direction of the nozzle. In practice, the edges of the substrate (or image edges) are not necessarily parallel. If the position of the printed material is deviated, the printing data (also called color register printing data) corresponding to the ink coating layer needs to be subjected to data processing during printing, for example, data rotation processing is performed according to the deviation angle.
In this embodiment, before printing covering layers such as gloss oil or gold stamping, a plurality of color register printing data templates are established in advance, and one color register printing data template corresponds to one offset angle. All the chromatography printing data templates can be stored in a local or cloud storage unit, the local storage unit can be a storage unit of an upper computer, a storage unit of a lower computer and a mobile U disk, preferably, the local storage unit is the storage unit of the lower computer, so that the time of data transmission can be saved, and the printing speed is improved. Preferably, all the color process print data templates are numbered, and the corresponding relationship between the offset angle and the color process print data template is established, as shown in fig. 3, for example, wherein the color process print data template numbered 1 corresponds to the offset angle a1, the color process print data template numbered 2 corresponds to the offset angles a2, … …, and the color process print data template numbered n corresponds to the offset angle An; wherein n is a natural number greater than or equal to 1; when the offset angle of the acquired printing stock is A1, correspondingly, the covering layer printing data of the number 1 is called from the storage unit according to A1 and is sent to the spray head for printing. Because a plurality of chromatography print data templates are formulated according to the printing stock before printing, and the corresponding chromatography print data template is called according to the offset angle when printing, thereby avoiding data processing (such as rotating processing according to the offset angle) when printing, saving data processing time, in addition, storing the chromatography print data template in a storage unit of a lower computer, and compared with the scheme that the upper computer needs to transmit the data to the lower computer after data processing in the prior art, the method can also save data transmission time, thereby effectively improving the printing speed and efficiency.
In some embodiments, the offset angle of the substrate is acquired according to the following steps:
s11: setting a standard positioning point;
s12: acquiring positioning points in the printing stock, and recording the positioning points as offset positioning points;
s13: and acquiring the offset angle of the printing stock according to the standard positioning point and the offset positioning point.
Specifically, as shown in fig. 4, at least two positioning marks are set according to the standard placement position, and are recorded as standard positioning marks, for example, "ten" is used as a positioning mark, and the positioning marks may also be a pattern "t-type", a pattern "x", a pattern "t", and the like; in addition, when the image is printed, the positioning mark printed in the printing stock is recorded as an actual positioning mark, and when the printing stock bearing the image to be subjected to color register is placed on the printing platform again for image color register offset positioning printing, an image acquisition device (such as a camera, a video camera and the like) is used for acquiring the images of the actual positioning mark and the standard positioning mark, so that the placement condition of the printing stock and the offset angle of the actual placement position of the printing stock relative to the standard placement position are judged. As shown in fig. 4a or 4b, a connection line (denoted as a first connection line) of the two standard positioning marks is parallel to the height direction of the nozzle, and an included angle between the connection line (denoted as a second connection line) between the two positioning marks in the printing stock and the first connection line is an offset angle. The offset angle is determined through the positioning mark and the image recognition, so that the efficiency is higher and the result is more accurate compared with a manual detection mode.
After the offset angle of the printing stock is obtained, a corresponding color register printing data template can be obtained according to the offset angle so as to perform color register offset positioning printing on the image.
As shown in fig. 4a, when the second wire is rotated clockwise with respect to the first wire, the offset angle therebetween is positive, and as shown in fig. 4b, when the second wire is rotated counterclockwise with respect to the first wire, the offset angle therebetween is negative, and the offset angle is in the range of [ -180 °, 180 ° ], and the angular range is referred to as a full angular offset range. In some embodiments, one color register data template may be generated according to each integer angle in the above range [ -180 °, 180 ° ], or one color register data template may be generated every 0.5 °,0.1 °, and the like, and the more color register data templates are generated, the higher the overall color register accuracy is, but the more color register data templates are generated, the larger the amount of occupied storage space is, and the more calculation power is required for generation, which is not favorable for saving storage and calculation power expenses.
In some embodiments, the offset angle which can occur most can be determined according to the actual printing condition, and is recorded as the preset offset angle, the corresponding chromatography printing data template is generated according to the preset offset angles, and when the actual offset angle of the printing stock is equal to one of the preset offset angles, the chromatography printing data template corresponding to the preset offset angle is taken out and sent to the spray head for printing. Further, an angular offset range may be set according to an actual printing situation. Because in actual printing, the actual placement position of the printing material generally does not deviate too much from the standard placement position, if the offset angle is within a range of several degrees, the offset may not be noticeable to the human eye, but if the offset angle is large, such as tens or tens of degrees, the offset is very significant. At this time, the manual adjustment is directly performed, and the actual placement position of the printing stock possibly deviates from the standard placement position after the manual adjustment, but as long as the deviation is within the preset angular deviation range, the image color register offset positioning printing method of the embodiment can be used for performing the image color register offset positioning printing.
Preferably, before acquiring the corresponding color process print data template according to the offset angle, the method further comprises:
s01: setting an angle offset range;
s02: acquiring a plurality of preset offset angles according to the angle offset range;
s03: generating a plurality of chromatography printing data templates according to the preset offset angle;
s04, establishing the mapping relation between the preset offset angles and the color register printing data templates, and recording as a first mapping relation.
Illustratively, the angular offset range is [ -10 °, 10 ° ]. In the angle offset range, 21 preset offset angles, namely-10 °, -9 °, … …,0 °,1 °, … …, and 10 °, are selected, and a corresponding color process printing data template is generated for each preset offset angle, for example, a first preset color process printing data template is generated for an offset angle of-10 °, and a second preset color process printing data template … … is generated for an offset angle of-9 °; thereby establishing a one-to-one mapping relation between the preset offset angle and the chromatography printing data template, and recording the mapping relation as a first mapping relation; and when the acquired offset angle is any one of the preset offset angles, calling a corresponding color register printing data template for printing. If the color register result is desired to be more accurate, more preset offset angles can be selected. Therefore, the angular offset range, the number of the preset offset angles and the numerical value can be set according to the actual situation, and are not limited herein.
In other embodiments, the first mapping relationship may also be a many-to-one mapping relationship, for example, when the offset angle is [ -10 °, -9 °), the first preset color process print data template is mapped, when the offset angle is [ -9 ° -8 °), the second preset color process print data template … … is mapped, so as to establish a many-to-one mapping relationship between the preset offset angle and the color process print data template, and when the offset angle is acquired to fall within the corresponding preset offset angle range, the corresponding color process print data template is called for printing.
The angular offset range may be set according to actual printing conditions, and is preferably [ -0.5 °, 0.5 ° ]. Within this angular offset range, 10 preset offset angles, namely-0.5 °, -0.4 °, … …, -0.1 °,0.1 °, … …, 0.5 °, are selected, and a corresponding color process print data template is generated for each preset offset angle. The range of the angular deviation is set by combining the actual printing condition, and the preset chromatography printing data templates with a plurality of numbers are generated, so that the storage space and the calculation power can be saved compared with the preset chromatography printing data templates with a plurality of numbers generated in the full angular deviation range. In some embodiments, a plurality of color process printing data templates are generated according to the angle offset range, and after a plurality of times of printing is performed according to the color process printing data templates, the original angle offset range and the preset offset angle can be calibrated to generate a new color process printing data template. The method comprises the following specific steps:
s5: calibrating the angle deviation range according to the deviation angle to obtain a new angle deviation range;
s6: acquiring a plurality of new preset offset angles according to the new angle offset range;
s7: acquiring a plurality of new chromatography printing data templates according to the new preset offset angle;
s8: establishing a mapping relation between the plurality of new preset offset angles and the plurality of new chromatography printing data templates, and recording the mapping relation as a second mapping relation;
s9: and acquiring a new color register printing data template according to the second mapping relation for ink-jet printing.
Illustratively, after a plurality of prints are performed, the probability that the offset angle is found to be in the range of [ -1 °,1 ° ] is more than 98%, at this time, the angle offset range may be set to [ -1 °,1 ° ], and a new chromatography print data template is generated every 0.1 ° according to the new angle offset range, so as to establish a new mapping relationship (denoted as a second mapping relationship) between the preset offset angle and the chromatography print data template in one or more pairs. And in the subsequent gloss oil printing, acquiring a color register printing data template corresponding to the offset angle by using the second mapping relation for printing. The angle deviation range is calibrated, so that the color register of the covering layer and the image is more accurate when the printing ink is used for covering and printing, the printing effect is improved, and the final image printing effect is improved.
In summary, according to the method for color register offset positioning printing of an image provided by the embodiments of the present invention, the corresponding color register print data template is obtained according to the offset angle of the actual placement position of the printing object relative to the standard placement position, and is printed, because the color register print data template is generated in advance and stored in the storage unit, the corresponding template is directly obtained from the storage unit according to the offset angle and is sent to the nozzle for printing during printing, and compared with a scheme that the printing is performed by sending the printing data to the nozzle after the rotation processing of the cover layer printing data is performed according to the offset angle during printing, the data processing time during printing is saved, and the printing speed and the printing efficiency are improved.
Example two
Based on the first embodiment, the embodiment of the invention further provides an image restoration method. In some printing applications, when some images are faded or missing part of the images due to some reasons and need to be repaired, the missing part can be printed on the surface of the rest of the images by using color or black-and-white ink such as CMYKW; furthermore, a layer of transparent printing ink such as gloss oil can be printed on the repaired image so as to restore the image or improve the image effect. The image restoration method can also be applied to some occasions of cultural relic restoration.
The image restoration method specifically comprises the following steps of,
acquiring a repair area of an image to be repaired;
generating restored image printing data according to the restored area;
generating a plurality of color register printing data templates according to the retouching image printing data;
acquiring an offset angle of an actual placing position of a printing stock relative to a standard placing position, wherein an image to be repaired is on the surface of the printing stock;
acquiring a corresponding color register printing data template according to the offset angle;
and controlling a spray head to spray ink to a specified area on the image to be repaired according to the color register printing data template.
Specifically, the image to be repaired may be acquired by an image acquisition device such as a scanner or a camera, an area to be repaired is determined, and then image repair is performed by using a technology such as AI repair, in order to keep the color of the reprinted ink and the color of the remaining image in the image to be repaired consistent, in other embodiments, color management (such as manual color matching or corresponding ICC profile making) may be performed on the printer before printing, so that the color of the printed ink and the color of the image to be repaired are kept consistent as much as possible. And after image restoration, acquiring image data corresponding to the restoration area, and recording the image data as restoration image printing data. According to the repaired image printing data, a plurality of color register printing data templates are generated in advance, each color register printing data template corresponds to an offset angle, the color register printing data templates are stored in a printer, and when the printer performs color register printing on the basis of the image to be repaired, ink is sprayed to the repaired area on the image to be repaired to form the repaired image through the image color register offset positioning printing method in the embodiment I, so that the image is repaired.
In another embodiment, several color register print templates may be generated for one offset angle according to different scenes, such as multiple color register print templates may be generated according to different environments, different lighting, different contrast, or different ink amounts, etc. Illustratively, one offset angle corresponds to several process printing templates, and each process printing template is generated according to different lighting conditions. When detecting that the printing stock has the offset, acquiring a corresponding color register printing template according to the offset angle of the printing stock, wherein a plurality of color register printing templates are selected, and the selected color register printing template can be determined according to the actual condition; and if the illumination condition of the graph to be repaired is indoor weak illumination, correspondingly selecting a color register template corresponding to the weak illumination for repairing and printing, so that the repaired image can be more real.
In other embodiments, after the image to be repaired is repaired, the printer may be controlled to print a layer of gloss oil or transparent waterproof ink on the repaired image by using the image registration shift positioning printing method as described in the first embodiment to protect the repaired image.
In other embodiments, the process of printing and repairing the image to be repaired can be divided into pre-repairing and final repairing. The pre-repairing is to select partial area from the repairing area to perform repairing printing, then to see whether the color needs to be adjusted or improved according to the result of the pre-repairing printing, and then to perform the final repairing printing. The printing control method in the pre-repair and the final repair is similar to the image color register offset positioning printing method described in the above embodiment, and is not described herein again. The image to be repaired is divided into two times of repairing printing of pre-repairing and final repairing, and the repairing scheme can be further adjusted and improved through the result of a small part of the repaired image, so that the image obtained after the final repairing can better restore the real situation of the original image.
EXAMPLE III
Referring to fig. 5, an embodiment of the invention provides an apparatus 200 for color register offset positioning printing, where the apparatus 200 includes:
the offset angle acquiring module 201 is configured to acquire an offset angle of an actual position of a printing material relative to a standard position, where an image to be subjected to color register is on a surface of the printing material;
a template obtaining module 202, configured to obtain a corresponding color register printing data template according to the offset angle;
and the printing module 203 is used for controlling a spray head to spray ink to a specified area on the image to be color registered according to the color registering printing data template. Further, the offset angle obtaining module 201 includes:
the standard positioning mark acquisition unit is used for acquiring a positioning mark in the standard placement position and recording the positioning mark as a standard positioning mark;
the actual positioning mark acquiring unit is used for acquiring a positioning mark in the printing stock and recording the positioning mark as an actual positioning mark;
and the angle acquiring unit is used for acquiring the offset angle of the actual placing position of the printing stock relative to the standard placing position according to the standard positioning mark and the actual positioning mark.
Further, the apparatus 200 further comprises:
the setting module is used for setting an angle offset range;
the preset offset angle acquisition module is used for acquiring a plurality of preset offset angles according to the angle offset range;
the generating module is used for generating a plurality of color register printing data templates according to the preset offset angle;
and the first mapping relation establishing module is used for establishing the mapping relation between the plurality of preset offset angles and the plurality of chromatography printing data templates and recording the mapping relation as a first mapping relation.
Further, the image registration shift registration printing apparatus further includes:
a new angle deviation range obtaining module, configured to calibrate the angle deviation range according to the deviation angle, so as to obtain a new angle deviation range;
the new preset offset angle acquisition module is used for acquiring a plurality of new preset offset angles according to the new angle offset range;
the new template acquisition module is used for acquiring a plurality of new chromatography printing data templates according to the new preset offset angles;
a second mapping relationship establishing module, configured to establish a mapping relationship between the new preset offset angles and the new chromatography printing data templates, and record the mapping relationship as a second mapping relationship;
and the second printing module is used for acquiring a new color register printing data template according to the second mapping relation to perform ink-jet printing.
In summary, the image color register offset positioning printing apparatus provided in the embodiments of the present invention obtains the corresponding color register print data template according to the offset angle of the actual placement position of the printing object relative to the standard placement position, and performs printing, because the color register print data template is generated in advance and stored in the storage unit, the corresponding template is directly obtained from the storage unit according to the offset angle during printing and is sent to the nozzle for printing, and compared with a scheme that the printing is performed by sending the printing data to the nozzle after performing rotation processing on the covering layer printing data according to the offset angle during printing, the data processing time during printing is saved, and the printing speed and the printing efficiency are improved.
Example four
In addition, the image color register offset positioning printing method of the embodiment of the invention can be realized by a printing device. Fig. 6 is a schematic diagram illustrating a hardware configuration of a printing apparatus according to an embodiment of the present invention.
The printing device may include a processor 301 and a memory 302 storing computer program instructions.
In particular, the processor 301 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 301 realizes any one of the image process shift registration printing methods in the above-described embodiments by reading and executing computer program instructions stored in the memory 302.
In one example, the printing device may also include a communication interface 303 and a bus 310. As shown in fig. 6, the processor 301, the memory 302, and the communication interface 303 are connected via a bus 310 to complete communication therebetween.
The communication interface 303 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiment of the present invention.
EXAMPLE five
In addition, in combination with the image color register offset positioning printing method in the above embodiment, the embodiment 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 the processor 301, implement any of the image registration shift registration printing methods in the embodiments described above.
In summary, according to the method, the apparatus, the device, and the storage medium for color register offset positioning printing of an image provided in the embodiments of the present invention, a corresponding color register print data template is obtained according to an offset angle of an actual placement position of a printing object relative to a standard placement position, and is stored in a storage unit.
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 (10)
1. An image process shift register printing method, comprising:
acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position, wherein the surface of the printing stock is to be subjected to color register;
acquiring a corresponding color register printing data template according to the offset angle;
and controlling a spray head to spray ink to a specified area on the image to be subjected to color register according to the color register printing data template.
2. The method of image registration shift-positioning printing according to claim 1, wherein the obtaining the shift angle of the actual placement position of the printing material with respect to the standard placement position comprises:
acquiring a positioning mark in the standard placement position and recording the positioning mark as a standard positioning mark;
acquiring a positioning mark in the printing stock, and recording the positioning mark as an actual positioning mark;
and acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position according to the standard positioning mark and the actual positioning mark.
3. The method according to claim 1, further comprising, before said obtaining a corresponding color process print data template according to the offset angle:
setting an angle offset range;
acquiring a plurality of preset offset angles according to the angle offset range;
generating a plurality of chromatography printing data templates according to the preset offset angle;
and establishing a mapping relation between the preset offset angles and the plurality of chromatography printing data templates, and recording the mapping relation as a first mapping relation.
4. The method according to claim 3, wherein said obtaining a corresponding color register print data template according to the offset angle comprises:
and acquiring a color register printing data template corresponding to the offset angle according to the first mapping relation.
5. The method of image register shift register printing according to claim 3, wherein the angular shift range is [ -0.5 °, 0.5 ° ].
6. The method according to any one of claims 3-5, further comprising, after the controlling the nozzles to eject the ink to the designated area on the image to be color-registered according to the color-registered print data template:
calibrating the angle deviation range according to the deviation angle to obtain a new angle deviation range;
acquiring a plurality of new preset offset angles according to the new angle offset range;
acquiring a plurality of new chromatography printing data templates according to the new preset offset angle;
establishing a mapping relation between the plurality of new preset offset angles and the plurality of new chromatography printing data templates, and recording the mapping relation as a second mapping relation;
and acquiring a new color register printing data template according to the second mapping relation for ink-jet printing.
7. The method of claim 6, wherein the first mapping relationship and the second mapping relationship are one-to-one or many-to-one mapping relationships.
8. An image registration shift register printing apparatus, comprising:
the offset angle acquisition module is used for acquiring the offset angle of the actual placement position of the printing stock relative to the standard placement position, wherein the surface of the printing stock is provided with an image to be subjected to color register;
the template acquisition module is used for acquiring a corresponding color register printing data template according to the offset angle;
and the printing module is used for controlling a spray head to spray ink to a specified area on the image to be subjected to color register according to the color register printing data template.
9. 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 1-7.
10. A storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-7.
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