CN111079592B - Ceramic fingerprint image generation and extraction method and device - Google Patents

Abstract

Embodiments of the present invention provide a method and device for generating and extracting ceramic fingerprint images. The generating method includes: determining a position of a fingerprint area on a product surface, obtaining a microscopic image of the fingerprint area at the position to obtain the fingerprint image, and marking the microscopic image Obtain the texture type of the microscopic image, determine the microscopic mark used for positioning from the microscopic image according to the texture type, and generate the guidance information for obtaining the microscopic image area according to the microscopic mark; among which, the texture type includes the type of glaze and pattern Type, the location information marked by the microscopic image is used for the extraction process of the fingerprint image, and the microscopic identification and guidance information is used to provide guidance when the user extracts the fingerprint image. The method can improve the accuracy of image fingerprint extraction through microscopic identification. By acquiring the microscopic image of the fingerprint area and marking the position information of the microscopic image, it is beneficial to provide accurate positioning when verifying the fingerprint image, and obtain an accurate fingerprint image to be verified.

Description

Ceramic fingerprint image generation and extraction method and device

technical field

The invention relates to the technical field of ceramic identification and identification, in particular to a method and device for generating and extracting ceramic fingerprint images.

Background technique

Since human fingerprints are produced by a combination of genetics and environment, everyone has fingerprints, but they are different. Because the repetition rate of fingerprints is extremely small, about one in 15 billion, it is called "human ID card". Based on the same theory, ceramic fingerprints can be used to identify ceramic product identity information. The key features of the ceramic surface, which can be used as the identity information of the ceramic, are called ceramic fingerprints.

The actual area of the ceramic fingerprint image used to generate the ceramic fingerprint is small, which brings certain difficulties to the photographing of the fingerprint image and the identification of the ceramic fingerprint. How to effectively extract ceramic fingerprints from the surface of ceramic products has become an urgent problem to be solved at present.

SUMMARY OF THE INVENTION

In order to solve the above problems, embodiments of the present invention provide a method and device for generating and extracting ceramic fingerprint images.

In a first aspect, an embodiment of the present invention provides a method for generating a ceramic fingerprint image, comprising: determining a position of a fingerprint area on a product surface, acquiring a microscopic image of the fingerprint area at the position to obtain a target fingerprint image, and marking the fingerprint area. position information of the microscopic image; obtain the texture type of the microscopic image, determine the microscopic identification used for positioning from the microscopic image according to the texture type, and generate guide information for obtaining the microscopic image area according to the microscopic identification; Wherein, the texture type includes a glaze type and a pattern type, and the position information marked by the microscopic image, the microscopic identification and the guidance information are used to provide guidance when the user extracts the fingerprint image.

Further, the labeling of the position information of the microscopic image includes: acquiring a macroscopic image of the product including the fingerprint area, labeling the position of the microscopic image according to the determined position, and obtaining the fingerprint position including the position information. Schematic.

Further, the determining the position of the fingerprint area includes: determining the position of the fingerprint area according to the symbol identification area; or determining the position of the fingerprint area according to the pattern area; or determining the position of the fingerprint area according to the product outer packaging frame.

Further, after acquiring the microscopic image of the fingerprint area, it also includes: performing image quality judgment on the microscopic image; the image quality judgment method includes any one of sharpness judgment, brightness judgment, color shift judgment, and magnification judgment. or any of them.

Further, according to the texture type, determining the microscopic identification used for positioning from the microscopic image includes: if the texture type is a pattern, generating an image envelope according to the pattern area in the microscopic image to obtain the microscopic identification; If the texture type is smooth glaze, the characteristic bubbles in the microscopic image are used to generate a preset number of positioning points as microscopic marks; if the texture type is frosted glaze or no glaze, the microscopic marks are determined according to the edge positioning.

In a second aspect, an embodiment of the present invention provides a method for extracting a ceramic fingerprint image, including: acquiring position information of a microscopic image to be extracted, a microscopic identification used for positioning, and obtaining guidance information of a microscopic image area according to the microscopic identification; The position information of the microscopic image to be extracted is determined, and the position of the fingerprint image to be verified is determined; according to the microscopic identification and the guide information, the area of the microscopic image to be verified is determined, and the fingerprint image to be verified is obtained.

Further, after obtaining the microscopic image to be verified and before obtaining the fingerprint image to be verified, the method further includes: judging the image quality of the microscopic image to be verified; the image quality judging method includes: Any one or more of judgment, color shift judgment and magnification judgment.

In a third aspect, an embodiment of the present invention provides a ceramic fingerprint image generation device, comprising: a microscopic image acquisition module for determining the position of a fingerprint area on a product surface, and at the position, acquiring a microscopic image of the fingerprint area to obtain a target fingerprint image, and annotate the position information of the microscopic image; an extraction mark generation module is used to obtain the texture type of the microscopic image, and according to the texture type, determine the microscopic mark used for positioning from the microscopic image, and Generating guide information for obtaining a microscopic image area according to the microscopic identification; wherein the texture type includes a glaze type and a pattern type, and the position information marked by the microscopic image, the microscopic identification and the guide information are used for user extraction Provide guidelines when fingerprinting images.

In a fourth aspect, an embodiment of the present invention provides a ceramic fingerprint image extraction device, comprising: an acquisition module for acquiring position information of a microscopic image to be extracted, a microscopic identification for positioning, and obtaining a microscopic image area according to the microscopic identification The determining module is used to determine the position of the fingerprint image to be verified according to the position information of the microscopic image to be extracted; the extraction module is used to determine the microscopic image to be verified according to the microscopic identification and the guiding information. area to obtain the fingerprint image to be verified.

In a fifth aspect, an embodiment of the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the program, the first aspect of the present invention can be used to generate a ceramic fingerprint image. The method or the steps of the ceramic fingerprint image extraction method of the second aspect.

The method and device for generating and extracting ceramic fingerprint images provided by the embodiments of the present invention can improve the accuracy of image fingerprint extraction through the microscopic identification used for positioning. By acquiring the microscopic image of the fingerprint area and marking the position information of the microscopic image, It is beneficial for consumers to provide accurate positioning when verifying fingerprint images, and obtain accurate fingerprint images to be verified. Through double positioning, it is convenient for users to provide fast and accurate guidance when extracting fingerprint images.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a flowchart of a method for generating a ceramic fingerprint image provided by an embodiment of the present invention;

2 is a schematic diagram of classification of ceramic surface textures provided by an embodiment of the present invention;

3 is a flowchart of a method for extracting a ceramic fingerprint image provided by an embodiment of the present invention;

4 is a flowchart of a method for extracting a ceramic fingerprint image provided by another embodiment of the present invention;

5 is a structural diagram of a ceramic fingerprint image generating device provided by an embodiment of the present invention;

6 is a structural diagram of a ceramic fingerprint image extraction device provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a physical structure of an electronic device according to an embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a flowchart of a method for generating a ceramic fingerprint image provided by an embodiment of the present invention. As shown in FIG. 1 , an embodiment of the present invention provides a method for generating a ceramic fingerprint image, including:

101. Determine the position of the fingerprint area on the surface of the product, at the position, acquire a microscopic image of the fingerprint area to obtain a target fingerprint image, and mark the position information of the microscopic image.

In 101, before the ceramic product provides the product to the customer or user, such as the manufacturer of the ceramic product, it is necessary to complete the shooting of the ceramic fingerprint image, and at the same time mark the position of the ceramic fingerprint image in the ceramic product, so as to facilitate the subsequent verification of product identity information . First, the location of the fingerprint area, that is, the surface location of the ceramic product to make the fingerprint image, has been determined. Based on the determined surface location, an image of the area used to make the fingerprint image is taken. Different from the macroscopic image of the whole product, the local image is called the microscopic image, and the microscopic image is used as the target fingerprint image, which is used for the production of ceramic fingerprints through the existing algorithm. After the microscopic image is determined, it is also necessary to obtain the position information of the microscopic image relative to the overall macroscopic image according to the determined position of the fingerprint area, so that consumers and other users can determine from which area the microscopic image is extracted.

102. Acquire the texture type of the microscopic image, determine the microscopic identification used for positioning from the microscopic image according to the texture type, and generate guide information for obtaining the microscopic image area according to the microscopic identification.

In 102, the texture type of the corresponding part of the product in the microscopic image is acquired, which mainly includes a glaze category and a pattern category. For example, the glaze category includes, matt glaze, clear glaze, frosted glaze and unglazed. Pattern categories include printed, printed, textured, and unpatterned. According to different texture types, determine the ceramic fingerprint. According to different texture types, the microscopic marks used for positioning are determined. The microscopic marks are the characteristic parts with obvious differences determined in the microscopic image, which are generated according to a specific algorithm. At the same time, guide information for obtaining the microscopic image area according to the microscopic identification is generated. After obtaining the microscopic identification, the consumer can obtain the microscopic image area that should be extracted based on the guide information.

In one embodiment, generating the guide information for obtaining the microscopic image area according to the microscopic identification includes determining the relative position of the calibration frame used in extracting the fingerprint image and the microscopic identification. For example, the guide information is to determine the relative position of the used calibration frame and the microscopic mark when extracting the fingerprint image. When the user extracts the fingerprint, the approximate position of the microscopic image can be obtained according to the position information of the microscopic image, and then the fingerprint image can be accurately obtained according to the microscopic identification and the calibration frame. That is to say, the position information, microscopic identification and calibration frame of the microscopic image annotation can be used to provide guidance when the user extracts the fingerprint image. For another example, the guidance is implemented by means of menu prompts.

The method for generating a ceramic fingerprint image provided in this embodiment can improve the accuracy of image fingerprint extraction through the microscopic identification used for positioning. By acquiring the microscopic image of the fingerprint area and marking the position information of the microscopic image, it is beneficial for consumers to verify their fingerprints. Provides accurate positioning when taking images, and obtains accurate fingerprint images to be verified. Through double positioning, it is convenient for users to provide fast and accurate guidance when extracting fingerprint images.

Based on the content of the above embodiment, as an optional embodiment, marking the position information of the microscopic image includes: acquiring a macroscopic image of the product including the fingerprint area, marking the position of the microscopic image according to the determined position, and obtaining the containing position Schematic diagram of the fingerprint location of the information.

In order to improve the efficiency of subsequent ceramic fingerprint comparison, microscopic marks are generated so that the alignment is more accurate when the ceramic fingerprint image is extracted again. At the same time, according to the generated microscopic identification and the schematic diagram of the location of the ceramic fingerprint image, the system can generate the corresponding extraction step guide, which provides convenience for consumers to collect the ceramic fingerprint image.

Based on the content of the foregoing embodiment, as an optional embodiment, determining the location of the product fingerprint area includes: determining the location of the fingerprint area according to the symbol identification area; or determining the location of the fingerprint area according to the pattern area; or determining the location of the fingerprint area according to the outer packaging of the product frame, which determines the location of the fingerprint area.

In this embodiment, it is determined how to obtain the location of the above-mentioned fingerprint area. When taking ceramic fingerprint images, the corresponding fingerprint image extraction locations are recommended for ceramic products with different surface texture types. The option of texture type can be sent to the user through the human-machine interface, and the texture type can be obtained after the user selects the corresponding type, or the appearance of the product can be scanned by the camera to automatically detect the texture type of the product. After the texture type is known, the user can be informed by the man-machine interface display or voice, the best fingerprint image position corresponding to the current texture type.

Specifically, the location of the fingerprint region is determined according to the symbol identification region. All ceramics with seals or other symbols on the bottom can use the microscopic image of the seal or the position of the symbol as the fingerprint image shooting position. For living ceramics, sanitary ceramics and architectural ceramics, when the product structure change will not affect the product function, the location can be marked by means of stamping, QR code printing, etc., when the product structure change will affect the product function, you can use stamping, two-dimensional spraying code, etc. to mark the location. For matte glaze or finely polished non-patterned ceramics, product fingerprints can be obtained by stamping or printing a QR code.

According to the pattern area, the location of the fingerprint area is determined, and all types of ceramics with patterns on the surface can be photographed with detailed images of the patterns in special locations.

According to the product packaging frame, determine the location of the fingerprint area. For products with no pattern on the surface other than matte glaze and unglazed fine grinding, any surface can be selected as the image shooting logo, but attention should be paid to the calibration method. For antiques/arts can use the outer packaging frame anchor points.

The method for generating a ceramic fingerprint image provided by this embodiment, by determining the position of the product fingerprint area, includes: determining the position of the fingerprint area according to the symbol identification area; or determining the position of the fingerprint area according to the pattern area; or according to the product outer packaging frame, To determine the location of the fingerprint area, the most suitable fingerprint image area can be selected according to different texture types or product types.

Based on the content of the above-mentioned embodiment, as an optional embodiment, after acquiring the microscopic image of the fingerprint area, the method further includes: judging the image quality of the surrounding microscopic image, and the judging methods include sharpness judgment, brightness judgment, pixel level judgment and Any one or more of the magnification judgments.

According to the tips, after taking the microscopic surface image of the ceramic product, in order to ensure that the image can be converted into an effective fingerprint, the quality of the image needs to be detected; in order to improve the efficiency of subsequent ceramic fingerprint comparison, it is necessary to generate a microscopic mark to extract the ceramic again. The alignment of fingerprint images is more precise.

Image quality judgment includes image clarity, brightness and color shift detection. After inputting any ceramic microscopic surface image, the image clarity can be measured by the sum of squared gradients or the absolute value of the gradient. The image brightness can be measured by the deviation between the image brightness and the mean brightness value, and the number of pixels can be obtained from the image file information, thereby judging whether the image meets the color shift standard for generating image fingerprints.

Preferably, it is required that the definition is not lower than the preset threshold, the brightness deviation is not higher than the preset threshold, the image resolution is not lower than 600PPI, and the magnification is not less than 400 times. If it meets the standard, the microscopic surface image is input into the image fingerprint generation part, otherwise, the user is prompted that the image quality is unqualified and needs to be re-shot.

In the embodiment of the present invention, by judging the image quality of the microscopic image, it is proved that the acquired microscopic image can be converted into an effective fingerprint.

Based on the content of the foregoing embodiment, as an optional embodiment, determining the microscopic identifier from the microscopic image according to the texture type includes: if the texture type is a pattern, generating an image envelope according to the pattern area in the microscopic image, Obtain the microscopic identification; if the texture type is smooth glaze, use the characteristic bubbles in the microscopic image to generate a preset number of positioning points as the microscopic identification; if the texture type is frosted glaze or no glaze, determine the microscopic identification according to the edge positioning.

FIG. 2 is a schematic diagram of the classification of ceramic surface textures provided by an embodiment of the present invention. As shown in FIG. 2 , for all ceramics with printed, printed and engraved textures, a peripheral envelope can be used for the microscopic identification. For non-patterned ceramics other than matte glaze and fine frosting, the microscopic marking uses the positioning points generated by bubble points or mutation points as markings. For, texture type is frosted glaze or unglazed, microscopic identification is determined based on edge positioning.

FIG. 3 is a flowchart of a method for extracting a ceramic fingerprint image provided by an embodiment of the present invention. As shown in FIG. 3 , an embodiment of the present invention provides a method for extracting a ceramic fingerprint image, which is implemented based on the above-mentioned methods for generating ceramic fingerprint images, including:

301. Acquire location information of the microscopic image to be extracted, a microscopic identification used for positioning, and obtain guidance information of a microscopic image area according to the microscopic identification;

302. Determine the location of the fingerprint image to be verified according to the location information of the microscopic image to be extracted;

303. Determine the area of the microscopic image to be verified according to the microscopic identification and the guide information, and obtain the fingerprint image to be verified.

In 101, after the ceramic fingerprint is generated, the location information of the microscopic image to be extracted, the microscopic identification used for positioning, and the guidance information of the microscopic image area obtained according to the microscopic identification are provided to the ceramic fingerprint extraction process in the form of transmission or storage through the network use. For example, by scanning the barcode or QR code of the product, consumers can obtain the location information of the microscopic image to be extracted, the microscopic identification used for positioning, and the guidance information for obtaining the microscopic image area according to the microscopic identification through the website of the merchant. The guidance information may be the positional relationship between the above-mentioned identification frame and the two-dimensional code, or may be guidance in other graphic and text forms.

Combined with the above method for generating a ceramic fingerprint image, when a consumer extracts a ceramic fingerprint image for verification, first obtains the location information of the microscopic image to be extracted. It can be implemented according to the schematic diagram of the fingerprint position including the position information in the above-mentioned embodiment of the generation method. That is to say, in the process of generating the fingerprint image, a macroscopic image of the product including the fingerprint area is obtained, and the position of the microscopic image is marked according to the determined position, and a schematic diagram of the fingerprint position including the position information is obtained. During fingerprint extraction, the preliminary area of the fingerprint image can be found according to the schematic diagram of the location of the fingerprint. That is, the designated area of the ceramic fingerprint image is found according to the hint and the schematic diagram of the position information of the fingerprint image (or other position information marked with the microscopic image).

After the fingerprint image area is determined, the area of the microscopic image to be verified is determined according to the microscopic identification and the guide information. For example, the area of the microscopic image to be verified is determined based on the relative positions of the microscopic identification and the calibration frame. The schematic diagram and prompt can be used according to the positioning mark, and the microscopic mark is used as the calibration frame for shooting, and the relative position of the microscopic mark and the calibration frame is determined, so as to obtain the microscopic image of the ceramic to be verified, and according to the microscopic image to be verified, obtain the to-be-verified image. fingerprint image.

After obtaining the fingerprint image to be verified, according to the current computer vision and machine learning, the verification of the fingerprint image can be implemented, that is, to verify the fingerprint consistency of the fingerprint image to be verified and the target fingerprint image.

The ceramic fingerprint image extraction method provided in this embodiment, by acquiring the position information of the microscopic image to be extracted, is conducive to the preliminary and accurate positioning of the microscopic image to be verified when verifying the fingerprint image, and further high accuracy can be achieved through the microscopic identification and guidance information. The location of the microscopic image to be verified is obtained, thereby accurately obtaining the location of the fingerprint image to be verified.

Based on the content of the foregoing embodiment, as an optional embodiment, acquiring the position information of the microscopic image to be extracted is specifically acquiring a schematic diagram of the position of the fingerprint including the position information; the schematic diagram of the position of the fingerprint is obtained when the fingerprint image is generated. The macro image of the product including the fingerprint area is obtained by marking the position information of the micro image according to the determined position on the basis of the macro image.

Based on the content of the foregoing embodiment, as an optional embodiment, after obtaining the microscopic image to be verified and before obtaining the fingerprint image to be verified, the method further includes: judging the image quality of the microscopic image to be verified; the image quality judging method includes: Any one or more of sharpness judgment, brightness judgment, color shift judgment and magnification judgment.

That is, after obtaining the microscopic image to be verified, if the quality of the image meets the requirements, a ceramic fingerprint image to be verified can be generated based on the image, and if it does not meet the quality requirements, it will prompt to re-shoot. For details, please refer to the image quality judgment in the above embodiments of the ceramic fingerprint image generation method.

FIG. 4 is a flow chart of a method for extracting a ceramic fingerprint image provided by another embodiment of the present invention. As shown in FIG. 4 , according to a sample image of a ceramic fingerprint image, a schematic diagram of the position information of the ceramic fingerprint image, a microscopic mark used for positioning and a pair of microscopic marks Quasi-schematic generation of fingerprint image extraction steps and guidelines for specific products. The generation of ceramic fingerprint image positioning information refers to using the schematic diagram of the ceramic fingerprint location information and the enlarged ceramic fingerprint image sample map to indicate the location of the ceramic fingerprint image in the product, so as to ensure that the user can find the correct position when shooting. The generation of the micro-mark alignment frame is to calibrate a range for placing the main information of the image on the shooting interface according to the micro-mark, which is similar to calibrating the face calibration frame in face recognition.

FIG. 5 is a structural diagram of a ceramic fingerprint image generation device provided by an embodiment of the present invention. As shown in FIG. 5 , the ceramic fingerprint image extraction device includes: a microscopic image acquisition module 501 and an extraction identification generation module 502 . Among them, the microscopic image acquisition module 501 is used to determine the position of the fingerprint area on the surface of the product, at the position, acquire the microscopic image of the fingerprint area to obtain the target fingerprint image, and mark the position information of the microscopic image; extract the identification generation module 502 is used to acquire the texture type of the microscopic image, determine a microscopic identification used for positioning from the microscopic image according to the texture type, and generate guide information for obtaining the microscopic image area according to the microscopic identification; The texture type includes glaze type and pattern type, and the position information marked by the microscopic image, the microscopic identification and the guidance information are used to provide guidance when the user extracts the fingerprint image.

FIG. 6 is a structural diagram of an apparatus for extracting a ceramic fingerprint image provided by an embodiment of the present invention. As shown in FIG. 6 , the apparatus for extracting a ceramic fingerprint image includes: an acquisition module 601 , a determination module 602 and an extraction module 603 . Wherein, the acquisition module 601 is used to acquire the position information of the microscopic image to be extracted, the microscopic identification used for positioning, and obtain the guidance information of the microscopic image area according to the microscopic identification; the determination module 602 is used to obtain the microscopic image area according to the The location information is used to determine the location of the fingerprint image to be verified; the extraction module 603 is configured to determine the microscopic image area to be verified according to the microscopic identification and the guide information, and obtain the fingerprint image to be verified.

The apparatus embodiments provided in the embodiments of the present invention are for implementing the foregoing method embodiments. For specific processes and details, please refer to the foregoing method embodiments, which will not be repeated here.

The ceramic fingerprint image generation and extraction device provided by the embodiment of the present invention can improve the accuracy of image fingerprint recognition through the microscopic identification used for positioning. By acquiring the microscopic image of the fingerprint area and marking the position information of the microscopic image, it is beneficial to consumers. Provide accurate positioning when verifying fingerprint images, and obtain accurate fingerprint images to be verified.

FIG. 7 is a schematic diagram of the physical structure of an electronic device according to an embodiment of the present invention. As shown in FIG. 7 , the server may include: a processor (processor) 701, a communications interface (CommunicationsInterface) 702, a memory (memory) 703, and a bus 704, wherein, the processor 701, the communication interface 702, and the memory 703 complete the mutual communication through the bus 704. The communication interface 702 may be used for information transmission of the electronic device. The processor 701 can call the logic instructions in the memory 703 to execute a method including: determining the position of the fingerprint area on the product surface, at the position, acquiring a microscopic image of the fingerprint area to obtain the fingerprint image, and marking the microscopic image. position information of the image; obtain the texture type of the microscopic image, determine the microscopic identification used for positioning from the microscopic image according to the texture type, and generate guide information for obtaining the microscopic image area according to the microscopic identification; wherein , the texture type includes glaze type and pattern type, the position information marked by the microscopic image is used for the extraction process of the fingerprint image, and the microscopic identification and the guide information are used for the user to provide guidance when extracting the fingerprint image.

In addition, the above-mentioned logic instructions in the memory 703 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the above method embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

On the other hand, an embodiment of the present invention further provides a non-transitory computer-readable storage medium on which a computer program is stored, and the computer program is implemented by a processor to execute the transmission method provided by the above embodiments, for example, including : Determine the position of the fingerprint area on the surface of the product, obtain a microscopic image of the fingerprint area at the position to obtain the fingerprint image, and mark the position information of the microscopic image; obtain the texture type of the microscopic image, according to the texture type, determine the microscopic mark used for positioning from the microscopic image, and generate guide information for obtaining the microscopic image area according to the microscopic mark; wherein, the texture type includes the type of glaze and pattern, and the microscopic image is marked with The location information is used for the extraction process of the fingerprint image, and the microscopic identification and the guidance information are used to provide guidance when the user extracts the fingerprint image.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place , or distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic Disks, optical discs, etc., include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods of various embodiments or portions of embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. a ceramic fingerprint image generation method, is characterized in that, comprises: Determine the position of the fingerprint area on the surface of the product, at the position, obtain a microscopic image of the fingerprint area to obtain the target fingerprint image, and mark the position information of the microscopic image; Acquire the texture type of the microscopic image, determine the microscopic identification used for positioning from the microscopic image according to the texture type, and generate guide information for obtaining the microscopic image area according to the microscopic identification; Wherein, the texture type includes the type of glaze surface and the type of pattern, and the position information, the microscopic identification and the guidance information marked by the microscopic image are used to provide guidance when the user extracts the fingerprint image; Location information, including: A macroscopic image of the product including the fingerprint area is acquired, and the position of the microscopic image is marked according to the determined position, so as to obtain a schematic diagram of the position of the fingerprint including the position information. 2. The method for generating a ceramic fingerprint image according to claim 1, wherein the determining the position of the fingerprint region comprises: Determine the location of the fingerprint area according to the symbol identification area; Or according to the pattern area, determine the location of the fingerprint area; Or determine the location of the fingerprint area according to the product packaging frame. 3. The method for generating a ceramic fingerprint image according to claim 1, wherein after acquiring the microscopic image of the fingerprint region, the method further comprises: Perform image quality judgment on the microscopic image; The image quality judgment method includes any one or more of sharpness judgment, brightness judgment, color shift judgment and magnification judgment. 4. The method for generating a ceramic fingerprint image according to claim 1, wherein, according to the texture type, determining a microscopic identification for positioning from the microscopic image, comprising: If the texture type is pattern, the image envelope is generated according to the pattern area in the microscopic image, and the microscopic identification is obtained; If the texture type is smooth glaze, use the characteristic bubbles in the microscopic image to generate a preset number of positioning points as microscopic markers; If the texture type is frosted glaze or unglazed, microscopic identification is based on edge positioning. 5. A ceramic fingerprint image extraction method based on the ceramic fingerprint image generation method according to any one of claims 1-4, characterized in that, comprising: acquiring the position information of the microscopic image to be extracted, the microscopic identification used for positioning, and obtaining the guidance information of the microscopic image area according to the microscopic identification; According to the position information of the microscopic image to be extracted, determine the position of the fingerprint image to be verified; According to the microscopic identification and the guide information, the area of the microscopic image to be verified is determined, and the fingerprint image to be verified is obtained. 6 . The ceramic fingerprint image extraction method according to claim 5 , wherein after the determination of the microscopic image area to be verified and before the fingerprint image to be verified is obtained, the method further comprises: 6 . Perform image quality judgment on the microscopic image to be verified; The image quality judgment method includes any one or more of sharpness judgment, brightness judgment, color shift judgment and magnification judgment. 7. A ceramic fingerprint image generating device, characterized in that, comprising: The microscopic image acquisition module is used to determine the position of the fingerprint area on the surface of the product, at the position, acquire the microscopic image of the fingerprint area to obtain the target fingerprint image, and mark the position information of the microscopic image; An extraction and identification generation module is used to obtain the texture type of the microscopic image, determine the microscopic identification used for positioning from the microscopic image according to the texture type, and generate guidance information for obtaining the microscopic image area according to the microscopic identification ; The microscopic image acquisition module is further configured to acquire a macroscopic image of the product including the fingerprint area, and mark the position of the microscopic image according to the determined position, so as to obtain a schematic diagram of the fingerprint position including the position information; Wherein, the texture type includes glaze type and pattern type, and the position information marked by the microscopic image, the microscopic identification and the guidance information are used to provide guidance when the user extracts the fingerprint image. 8. A ceramic fingerprint image extraction device, characterized in that, comprising: an acquisition module, configured to acquire the position information of the microscopic image to be extracted, the microscopic identification used for positioning, and obtain the guidance information of the microscopic image area according to the microscopic identification; a determination module, configured to determine the position of the fingerprint image to be verified according to the position information of the microscopic image to be extracted; an extraction module, configured to determine the microscopic image area to be verified according to the microscopic identification and the guide information, and obtain the fingerprint image to be verified; The position information of the microscopic image is obtained by acquiring the macroscopic image of the product including the fingerprint area, and marking the position of the microscopic image according to the determined position. 9. An electronic device, comprising a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor implements any one of claims 1 to 6 when the processor executes the program The steps of the ceramic fingerprint image generation method or extraction method described in item 1.

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