CN116794933A - Laser direct plate making control method, system and related equipment - Google Patents
Laser direct plate making control method, system and related equipment Download PDFInfo
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- 238000007639 printing Methods 0.000 claims abstract description 54
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- 238000004590 computer program Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 9
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- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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Abstract
The embodiment of the application provides a laser direct plate making control method, a laser direct plate making control system and related equipment, which are used for improving the quality and efficiency of printing production. The method can comprise the following steps: acquiring a scanned image of a printing surface after printing according to the original image; traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area; intercepting sub-image areas corresponding to all the connected areas in the scanned image, and identifying characteristic points of all the sub-image areas; matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image region respectively, and acquiring the position data of the successfully matched characteristic points in the scanned image; adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image; and controlling the laser to carry out laser platemaking according to the corrected image.
Description
Technical Field
The application relates to the technical field of laser imaging, in particular to a laser direct plate making control method, a laser direct plate making control system and related equipment.
Background
UV (ultra violet) glue, also known as UV glossing, is a term of the printing industry and is a post-treatment process for printed matter. The method is characterized in that special photoresist is precisely and uniformly coated on the surface or local area of a printed matter after preliminary printing, and after ultraviolet irradiation, the surface of the printed matter is quickly dried and hardened, so that a bright film layer is obtained in the coated area of the printed matter, and the effects of protecting print, beautifying products and replacing a film are achieved.
Before the photoresist is coated on the surface of the print, a screen printing screen is required to be manufactured according to the shape of the pattern area required to be coated with the photoresist. In the prior art, in the process of manufacturing the screen printing plate, a film is required to be manufactured based on an original image, then a plurality of images required by cutting are required from the complete film, and finally the cut film is placed at a proper position of a screen frame in a manual alignment mode to manufacture the screen printing plate. Therefore, the conventional scheme is complicated in working procedures, time-consuming and labor-consuming, and poor in controllability of manual alignment operation, and quality and efficiency of printing production are often affected.
Disclosure of Invention
The embodiment of the application provides a laser direct plate making control method, a laser direct plate making control system and related equipment, which are used for improving the quality and efficiency of printing production.
A first aspect of the present application provides a laser direct structuring control method, which may include:
acquiring a scanned image of a printing surface after printing according to the original image;
traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area;
intercepting sub-image areas corresponding to all the connected areas in the scanned image according to the identified positions of all the connected areas in the original image, and identifying characteristic points of all the sub-image areas;
matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image region respectively, and acquiring the position data of the successfully matched characteristic points in the scanned image;
adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image;
and controlling a laser to carry out laser platemaking according to the corrected image.
Optionally, as a possible implementation manner, the laser direct plate making control method in the embodiment of the present application may further include:
before identifying the feature points of each connected region, performing a merging operation on each identified connected region, wherein the merging operation comprises: judging whether the sum of the area of the adjacent connected domains is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
Optionally, as a possible implementation manner, the laser direct plate making control method in the embodiment of the present application may further include:
before identifying the feature points of each connected region, performing a merging operation on each identified connected region, wherein the merging operation comprises: judging whether the distance between the nearest points between adjacent connected domains is larger than a preset threshold value or not; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
Optionally, as a possible implementation manner, in this embodiment of the present application, the matching the feature points of each connected region with the feature points of the corresponding sub-image region respectively, and obtaining the position data of the feature points successfully matched in the scanned image includes:
respectively carrying out characteristic point matching on the image characteristic points of each communication area in the corresponding sub-image areas of the plurality of scanning images, thereby obtaining the position data of the characteristic points of the single communication area in the plurality of scanning images;
intermediate data of position data of a single connected region feature point in a plurality of scanned images is calculated, and the intermediate data is used as the position data of a corresponding connected region in the scanned images.
Optionally, as a possible implementation manner, in an embodiment of the present application, the intermediate data is an average value of position data of a single connected area in multiple scan images, or position data of a single connected area in multiple scan images is ordered and centered.
Optionally, as a possible implementation manner, in an embodiment of the present application, the adjusting positions of the connected areas in the original image to generate the corrected image may include:
transferring the images of all the connected areas in the original image to a blank template to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image.
A second aspect of the present application provides a laser direct plate making control method system, which may include:
the acquisition module is used for acquiring a scanned image of the printing surface after printing according to the original image;
the first identification module is used for traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area;
the second identification module is used for intercepting sub-image areas corresponding to the communication areas in the scanning image according to the identified positions of the communication areas in the original image, and identifying characteristic points of the sub-image areas;
the matching module is used for respectively matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image regions and acquiring the position data of the successfully matched characteristic points in the scanned image;
the image processing module is used for adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image;
and the control module is used for controlling the laser to carry out laser platemaking according to the corrected image.
Optionally, as a possible implementation manner, the laser direct plate making control method system in the embodiment of the present application may further include:
the merging module is used for merging the identified connected domains, and the merging operation comprises the following steps: judging whether the sum of the area of the adjacent connected domains is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
Optionally, as a possible implementation manner, in an embodiment of the present application, the matching module may include:
the matching unit is used for respectively matching the image characteristic points of each communication area in the corresponding sub-image areas of the plurality of scanning images to obtain the position data of the characteristic points of the single communication area in the plurality of scanning images;
and the calculating unit is used for calculating intermediate data of the position data of the characteristic points of the single connected region in the plurality of scanning images and taking the intermediate data as the position data of the corresponding connected region in the scanning images.
Optionally, as a possible implementation manner, in an embodiment of the present application, the intermediate data is an average value of position data of a single connected area in multiple scan images, or position data of a single connected area in multiple scan images is ordered and centered.
A third aspect of the embodiments of the present application provides a laser direct structuring apparatus comprising a processor for carrying out the steps as in any one of the possible implementations of the first aspect and the first aspect when executing a computer program stored in a memory.
A fourth aspect of the embodiments of the present application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs steps as in any one of the possible implementations of the first aspect and the first aspect.
From the above technical solutions, the embodiment of the present application has the following advantages:
in the embodiment of the application, an original image is divided into a plurality of connected areas, characteristic points of images of all the connected areas are identified, characteristic points of sub-images corresponding to the connected areas are extracted in the range of error areas corresponding to a scanned image respectively, then the characteristic points of all the connected areas are matched with the characteristic points of the sub-image areas corresponding to the connected areas respectively, position data of the successfully matched characteristic points in the scanned image are obtained, positions of all the connected areas in the original image are adjusted to generate a corrected image, the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image, and finally a laser is controlled to expose the mapping positions of laser exposure points in the corrected image on a net frame. Because the characteristic points in the corrected image and the characteristic points of the image after the printing offset tend to be consistent, the image on the screen frame after the laser exposure and the offset of the image after the printing offset tend to be consistent, the matching degree of the partial image on the printing surface and the mesh image of the screen frame is improved in the process of the later printing process, and the production quality of the process of the later printing process is improved. Meanwhile, manual operation in the film process is avoided, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a laser direct structuring control method according to the present application;
FIG. 2 is a schematic diagram of a possible embodiment of dividing connected domains in an original image;
fig. 3 is a schematic view of an embodiment of a laser direct structuring apparatus according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that any embodiment of the application described as "exemplary" or "for example" should not be construed as advantageous over other embodiments, rather, the use of the word "exemplary" or "for example" is intended to present the relevant concepts in a concrete fashion.
For ease of understanding, a specific flow in the embodiment of the present application is described below with reference to fig. 1, and an embodiment of a laser direct plate making control method in the embodiment of the present application may include:
s101: a scanned image of a printing surface after printing according to the original image is acquired.
Due to printing errors or sheet deformation (e.g., caused by thermal expansion and contraction), the partial image on the printed matter is shifted from the partial image in the original image. If the computer is adopted for direct plate making, if plate making is still carried out according to the position relation in the original image, the situation that the position of the UV adhesive coating is not aligned with the position of the image on the printed matter obviously occurs, so that the UV adhesive coated on the printed matter is misplaced, and the quality of the product is affected.
In order to improve the product quality, in the embodiment of the application, before a post-printing process (such as a UV glue process or a color process) is performed, one or more printing surfaces after printing according to an original image may be scanned to obtain a corresponding number of scanned images.
Taking the case of scanning a plurality of printing surfaces as an example, considering that the deformation amount between the plurality of printing surfaces is small and abrupt, the printing surfaces are often distributed in a linear continuity, and it is preferable that an appropriate amount of printing surfaces be selected from all the printing surfaces to be scanned separately, so that a plurality of scanned images can be obtained. For example, among 1000 sheets of printing paper, the first 3 sheets of printing paper in the front order, the middle 3 sheets of printing paper in the order, and the last 3 sheets of printing paper in the order can be selected, and the corresponding scanned images can be obtained by scanning 9 sheets of printing paper in total. Alternatively, 1 piece of printing paper in the middle can be directly selected for scanning to obtain 1 piece of scanned image.
S102: traversing the original image to identify connected regions in the image and identifying feature points of each connected region.
An original image is often composed of a plurality of small images which can be segmented, and the small images are distributed in all areas of the original image.
For example, as shown in fig. 2, the original image includes images corresponding to numbers 1, 2, 3, 4, and 5 and an L-shaped image, and the original image may be divided into 6 connected domains.
After the original image is divided into connected domains, the feature points of the images in each connected domain can be identified by adopting the existing image feature identification algorithm, such as sift and surf algorithms, so as to carry out feature matching later.
S103: and intercepting sub-image areas corresponding to the communication areas in the scanned image according to the positions of the identified communication areas in the original image, and identifying characteristic points of the sub-image areas.
It is expected that the deviation of the corresponding image after printing each connected region in the original image is often a small-amplitude deviation (less than 1 cm), so that according to the identified position of each connected region in the original image, the region within the preset error range of the original position of each connected region is determined to be the corresponding sub-image region of the connected region in the printing surface, and the feature points of each sub-image region are identified by adopting the same image feature identification algorithm.
S104: and matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image region respectively, and acquiring the position data of the successfully matched characteristic points in the scanned image.
After the characteristic points of each connected region and the characteristic points of the sub-image region are respectively acquired, matching can be carried out in regions, and position data of the successfully matched characteristic points in the scanned image can be acquired so as to determine the image offset condition of each connected region after printing.
It should be noted that, all feature points in one connected region are successfully matched, and only two or more feature points are required to be successfully matched.
If only one scanned image is obtained, the position data of the successfully matched feature point in the scanned image may be directly determined. If a plurality of scanned images are acquired, the image feature points of each connected region can be respectively subjected to feature point matching in the corresponding sub-image regions of the plurality of scanned images, so that the position data of the feature points of the single connected region in the plurality of scanned images is obtained; intermediate data of position data of a single connected region point in a plurality of scanned images is calculated, and the intermediate data is used as position data of a corresponding connected region in the scanned images.
Specifically, the intermediate data of the single feature point of the connected region may be an average value of the positions of all feature points (feature points in the sub-image region) successfully matched with the intermediate data, or may be feature point data centered in the sequence, which is not limited herein. For example, if the single feature point of the connected region matches the position data of 3 feature points on 3 printing surfaces, the mean value or the sorting median process may be calculated for the position data of 3 feature points.
Optionally, as a possible implementation manner, to reduce interference of the acquired image features and improve data extraction efficiency, before acquiring the image features of the plurality of matched images, the images that are not matched successfully may be removed from all the scanned images, and only the images that are matched successfully may be reserved.
S105: and adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image.
After the position data of the successfully matched feature points in the scanned image is obtained, the positions of the various connected regions in the original image can be adjusted to generate a corrected image, so that the positions of the feature points of the various connected regions in the corrected image are consistent with the positions of the successfully matched feature points in the scanned image.
By way of example, in the embodiment of the application, the image of each connected region in the original image can be transferred to the blank template to generate the corrected image, so that the positions of the characteristic points of each connected region in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image. Alternatively, the adjustment can be directly performed in the original image to generate the corrected image.
S106: and controlling the laser to carry out laser platemaking according to the corrected image.
After the corrected image is obtained, the laser is controlled to perform laser direct platemaking according to the corrected image. Specifically, the modified image may be first rasterized, the pixels in the modified image are mapped onto the exposure surface of the screen frame, the position of the laser exposure point on the exposure surface is determined according to the mapping relationship, and finally the laser direct plate making device or the laser is controlled to expose the laser exposure point on the exposure surface and develop the exposure surface after exposure, so as to form a pattern meeting the requirement on the screen frame.
As can be seen from the above disclosure, in the embodiment of the present application, an original image is divided into a plurality of connected regions, feature points of each connected region image are identified, feature points of sub-images corresponding to the connected regions are extracted in error region ranges corresponding to scanned images, then feature points of each connected region are respectively matched with feature points of sub-image regions corresponding to each connected region, position data of successfully matched feature points in the scanned images are obtained, positions of each connected region in the original image are adjusted to generate a corrected image, so that the positions of the feature points of each connected region in the corrected image are consistent with the positions of successfully matched feature points in the scanned images, and finally a laser is controlled to expose the mapped positions of laser exposure points in the corrected image on a screen frame. Because the characteristic points in the corrected image and the characteristic points of the image after the printing offset tend to be consistent, the image on the screen frame after the laser exposure and the offset of the image after the printing offset tend to be consistent, the matching degree of the partial image on the printing surface and the mesh image of the screen frame is improved in the process of the later printing process, and the production quality of the process of the later printing process is improved. Meanwhile, manual operations such as film manufacturing, cutting and alignment in the film technology are avoided, and the production efficiency is improved.
It should be understood that, in various embodiments of the present application, the sequence number of each step is not meant to indicate the order of execution, and the order of execution of each step should be determined by its functions and internal logic, and should not be construed as limiting the implementation process of the embodiments of the present application. For example steps S101 and S102 may be interchanged.
Optionally, on the basis of the embodiment shown in fig. 1, for example, the efficiency of matching feature points of an image is further improved, and in another possible embodiment of the present application, before identifying feature points of an image of each connected region, a merging operation may be further performed on each identified connected region, where the merging operation may include: judging whether the sum of the area of the adjacent connected domains (the area of the connected domain is the area according to the minimum rectangle surrounding the connected domain) is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged. For example, in fig. 2, if the preset threshold is set as the area of the L-shaped image, the connected domain corresponding to the L-shaped image cannot be combined with the digital image, and the digital images (1, 2, 3, 4, 5) may be combined into a new connected domain as a whole.
Optionally, on the basis of the embodiment shown in fig. 1, for example, the efficiency of matching feature points of an image is further improved, and in another possible embodiment of the present application, before feature points of each connected region are identified, a merging operation is performed on each identified connected region, where the specific merging operation may include: judging whether the distance between the nearest points between adjacent connected domains is larger than a preset threshold value or not; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged. For example, in fig. 2, if the preset threshold is smaller than the distance value from the L-type image to the 1-type image and larger than the distance value between the digital images (1, 2, 3, 4, 5), the connected domain corresponding to the L-type image cannot be combined with the digital images, and the digital images (1, 2, 3, 4, 5) can be integrally combined into a new connected domain.
The embodiment of the application also provides a laser direct plate making control method system, which can comprise the following steps:
the acquisition module is used for acquiring a scanned image of the printing surface after printing according to the original image;
the first identification module is used for traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area;
the second identification module is used for intercepting sub-image areas corresponding to the communication areas in the scanning image according to the identified positions of the communication areas in the original image, and identifying characteristic points of the sub-image areas;
the matching module is used for respectively matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image regions and acquiring the position data of the successfully matched characteristic points in the scanned image;
the image processing module is used for adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image;
and the control module is used for controlling the laser to carry out laser platemaking according to the corrected image.
Alternatively, as a possible implementation manner, the laser direct plate making control method system may further include:
the merging module is used for merging the identified connected domains, and the merging operation comprises the following steps: judging whether the sum of the area of the adjacent connected domains is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, modules and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
The system of the laser direct plate making control method in the embodiment of the present application is described above from the point of view of the modularized functional entity, referring to fig. 3, the laser direct plate making apparatus in the embodiment of the present application is described below from the point of view of hardware processing:
the laser direct structuring device 1 may comprise a memory 11, a processor 12 and an input-output bus 13. The processor 11, when executing the computer program, implements the laser direct plate making control method shown in fig. 1 described above, for example, steps 101 to 106 shown in fig. 1. In the alternative, the processor may implement the functions of the modules or units in the above-described embodiments of the apparatus when executing the computer program.
In some embodiments of the present application, the processor is specifically configured to implement the following steps:
acquiring a scanned image of a printing surface after printing according to the original image;
traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area;
intercepting sub-image areas corresponding to all the connected areas in the scanned image according to the identified positions of all the connected areas in the original image, and identifying characteristic points of all the sub-image areas;
matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image region respectively, and acquiring the position data of the successfully matched characteristic points in the scanned image;
adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image;
and controlling a laser to carry out laser platemaking according to the corrected image.
In the alternative, as a possible implementation, the processor may be further configured to implement the following steps:
and carrying out merging operation on each identified connected domain, wherein the merging operation comprises the following steps: judging whether the sum of the area of the adjacent connected domains is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
In the alternative, as a possible implementation, the processor may be further configured to implement the following steps: respectively carrying out characteristic point matching on the image characteristic points of each communication area in the corresponding sub-image areas of the plurality of scanning images, thereby obtaining the position data of the characteristic points of the single communication area in the plurality of scanning images;
intermediate data of position data of a single connected region feature point in a plurality of scanned images is calculated, and the intermediate data is used as the position data of a corresponding connected region in the scanned images.
In the alternative, as a possible implementation, the processor may be further configured to implement the following steps:
transferring the images of all the connected areas in the original image to a blank template to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image.
The memory 11 includes at least one type of readable storage medium including flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 11 may in some embodiments be an internal memory unit of the laser direct structuring device 1, for example a hard disk of the laser direct structuring device 1. The memory 11 may in other embodiments also be an external storage device of the laser direct structuring device 1, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which is provided on the laser direct structuring device 1. Further, the memory 11 may also include both an internal memory unit and an external memory device of the laser direct structuring device 1. The memory 11 may be used not only for storing application software installed in the laser direct structuring device 1 and various types of data, such as codes of computer programs, but also for temporarily storing data that has been output or is to be output.
The processor 12 may in some embodiments be a central processing unit (Central Processing Unit, CPU), controller, microcontroller, microprocessor or other data processing chip for running program code or processing data stored in the memory 11, e.g. executing computer programs or the like.
The input/output bus 13 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc.
Further, the laser direct structuring device may also comprise a wired or wireless network interface 14, and the network interface 14 may optionally comprise a wired and/or wireless interface (e.g. WI-FI interface, bluetooth interface, etc.), typically used to establish a communication connection between the laser direct structuring device 1 and other electronic devices.
Fig. 3 shows only a laser direct structuring device 1 with components 11-14 and a computer program, it being understood by a person skilled in the art that the structure shown in fig. 3 does not constitute a limitation of the laser direct structuring device 1, and may comprise fewer or more components than shown, or may combine certain components, or a different arrangement of components.
The present application also provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, can implement a laser direct plate making control method as described above with reference to fig. 1, such as steps 101 to 106 shown in fig. 1. In the alternative, the processor may implement the functions of the modules or units in the above-described embodiments of the apparatus when executing the computer program.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A laser direct structuring control method, comprising:
acquiring a scanned image of a printing surface after printing according to the original image;
traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area;
intercepting sub-image areas corresponding to all the connected areas in the scanned image according to the identified positions of all the connected areas in the original image, and identifying characteristic points of all the sub-image areas;
matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image region respectively, and acquiring the position data of the successfully matched characteristic points in the scanned image;
adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image;
and controlling a laser to carry out laser platemaking according to the corrected image.
2. The laser direct structuring control method according to claim 1, wherein before identifying the feature points of each of the communication areas, the method further comprises:
and carrying out merging operation on each identified connected domain, wherein the merging operation comprises the following steps: judging whether the sum of the area of the adjacent connected domains is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
3. The laser direct structuring control method according to claim 1, wherein before identifying the feature points of each of the communication areas, the method further comprises:
and carrying out merging operation on each identified connected domain, wherein the merging operation comprises the following steps: judging whether the distance between the nearest points between adjacent connected domains is larger than a preset threshold value or not; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
4. A laser direct structuring control method according to any one of claims 1 to 3, wherein scanning the printing surface after printing according to the original image to obtain a scanned image comprises: respectively scanning a plurality of printing surfaces after printing according to the original image to obtain a plurality of scanned images;
the step of matching the feature points of each connected region with the feature points of the corresponding sub-image region and obtaining the position data of the successfully matched feature points in the scanned image comprises the following steps:
respectively carrying out characteristic point matching on the image characteristic points of each communication area in the corresponding sub-image areas of the plurality of scanning images, thereby obtaining the position data of the characteristic points of the single communication area in the plurality of scanning images;
intermediate data of position data of a single connected region feature point in a plurality of scanned images is calculated, and the intermediate data is used as the position data of a corresponding connected region in the scanned images.
5. The laser direct structuring control method as claimed in claim 4, wherein the intermediate data is an average value of position data of a single communicating region in a plurality of scanned images or position data of a single communicating region centered in a sequence of position data in a plurality of scanned images.
6. A laser direct platemaking control method according to any one of claims 1 to 3, wherein said adjusting the positions of the respective connected regions in the original image to generate a corrected image includes:
transferring the images of all the connected areas in the original image to a blank template to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image.
7. A laser direct structuring control system, comprising:
the acquisition module is used for acquiring a scanned image of the printing surface after printing according to the original image;
the first identification module is used for traversing the original image to identify connected areas in the image and identify characteristic points of the image of each connected area;
the second identification module is used for intercepting sub-image areas corresponding to the communication areas in the scanning image according to the identified positions of the communication areas in the original image, and identifying characteristic points of the sub-image areas;
the matching module is used for respectively matching the characteristic points of each connected region with the characteristic points of the corresponding sub-image regions and acquiring the position data of the successfully matched characteristic points in the scanned image;
the image processing module is used for adjusting the positions of all the connected areas in the original image to generate a corrected image, so that the positions of the characteristic points of all the connected areas in the corrected image are consistent with the positions of the successfully matched characteristic points in the scanned image;
and the control module is used for controlling the laser to carry out laser platemaking according to the corrected image.
8. The laser direct plate making control system according to claim 7, further comprising:
the merging module is used for merging the identified connected domains, and the merging operation comprises the following steps: judging whether the sum of the area of the adjacent connected domains is larger than a preset threshold value; if not, merging the adjacent connected domains; if the number is larger than the number, adjacent connected domains are not merged.
9. A laser direct structuring device, characterized in that it comprises a processor for implementing the method according to any one of claims 1 to 6 when executing a computer program stored in a memory.
10. A computer-readable storage medium having stored thereon a computer program, characterized by: the computer program, when executed by a processor, implements the method of any one of claims 1 to 6.
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| CN202210274845.4A CN116794933A (en) | 2022-03-18 | 2022-03-18 | Laser direct plate making control method, system and related equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210274845.4A CN116794933A (en) | 2022-03-18 | 2022-03-18 | Laser direct plate making control method, system and related equipment |
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