CN110044901B - Reagent card gray level analysis system - Google Patents
Reagent card gray level analysis system Download PDFInfo
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- CN110044901B CN110044901B CN201910364741.0A CN201910364741A CN110044901B CN 110044901 B CN110044901 B CN 110044901B CN 201910364741 A CN201910364741 A CN 201910364741A CN 110044901 B CN110044901 B CN 110044901B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/8483—Investigating reagent band
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/187—Segmentation; Edge detection involving region growing; involving region merging; involving connected component labelling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/194—Segmentation; Edge detection involving foreground-background segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
Abstract
The invention relates to the technical field of image analysis, in particular to a reagent card gray level analysis system which comprises a background server and a collection terminal, wherein the background server is used for acquiring an original image, identifying and marking an analysis area in the original image, identifying and marking an effective area in the analysis area, identifying and marking a reaction area in the effective area, acquiring pixel values of all pixel points in the reaction area to generate an average gray level value, and the collection terminal is used for processing and collecting a reagent card after an experiment is finished. When the scheme is applied to immunochromatography experiments, experimental results on the reagent card are identified, and the gray scale of the reagent card reaction zone can be accurately identified by adopting the scheme.
Description
Technical Field
The invention relates to the technical field of image analysis, in particular to a reagent card gray scale analysis system.
Background
The most common experiment in hospitals or laboratories is various experiments, such as immunochromatography experiments, in which various reaction reagents are fixed on a reagent card in different points, a test specimen is added at one end of the reagent card, a sample solution is electrophoresed on a chromatographic material through capillary action, an object to be tested in a sample and the reaction reagents in the chromatographic material undergo a specific binding reaction, a formed complex is enriched or fixed in a specific area on a chromatographic strip, color development is performed through a labeled immunity technology, and finally, whether the color change exists on the reagent card is observed by personnel, so that the experimental result is determined. However, when the color is observed by human eyes, the recognition capability is limited, and a case that a lighter color is regarded as a non-color may occur, thereby causing an error in the experimental result.
Disclosure of Invention
The invention aims to provide a reagent card gray scale analysis system which can accurately identify the gray scale of the color of a reagent card reaction zone.
The basic scheme provided by the invention is as follows: a reagent card gray scale analysis system comprises a background server, wherein the background server is used for acquiring an original image, and the background server is used for identifying and marking a reaction region in the original image and acquiring pixel values of all pixel points in the reaction region to generate an average gray scale value.
Description of the drawings: the reaction area refers to a C area and a T area which present the experimental result in the reagent card, wherein the C area is used for judging whether the experiment is effective, and the T area is used for judging the experimental result.
The beneficial effects of the basic scheme are as follows: analyzing an original image presenting an experimental result, identifying and marking a reaction area in the original image according to the change of pixel values, namely marking a C area and a T area, respectively obtaining the pixel values in the reaction area, and calculating an average pixel value according to the pixel values to be used as an average gray value in the reaction area, so that the gray value of the reaction area of the reagent card is accurately identified through digitizing the experimental result, and the error of the experimental result caused by color identification is reduced.
The first preferred scheme is as follows: preferably, the background server is used for identifying and marking the effective area in the original image and identifying and marking the reaction area in the effective area.
Description of the drawings: the effective area refers to the naked area of the test strip on the reagent card for presenting the experimental result.
Has the advantages that: in order to identify and mark the reaction area, the effective area, namely the area presenting the test result of the reagent strip on the reagent card, is identified in the original image, the reaction area is located in the effective area, the reaction area is identified in the effective area and the reaction area is identified in the original image, the identification speed is higher, and the waiting time for obtaining the test result is reduced.
The preferred scheme II is as follows: preferably, as a first preferred scheme, the background server includes an edge detection module, the edge detection module is preset with a pixel threshold, the edge detection module is configured to sequentially obtain pixel values of pixel points in a specified direction, generate a pixel difference value according to the pixel value of a current pixel point and the pixel value of a previous pixel point, and mark the current pixel point as a boundary point when the pixel difference value is greater than the pixel threshold.
Has the advantages that: for example, when the effective area is identified, the pixel values are sequentially acquired from left to right, and when the reaction area is identified, the pixel values are sequentially acquired from top to bottom, and finally the pixel values acquired in the designated direction are connected to form a long edge in the area, so that errors caused when the area is divided are reduced. The pixel threshold value can be obtained through experiments, a certain height difference exists between the reagent card and the reagent strip, the height difference causes the edge of the effective area in the original image to have shadow, and the pixel threshold value can be determined through the shadow, so that the effective area is more ready to be identified.
The preferable scheme is three: preferably, in the second preferred embodiment, the backend server includes an edge connection module, and the edge connection module is configured to sequentially connect boundary points according to a connection direction to form a boundary line, and connect the boundary line according to a specified direction to form a closed area.
Has the advantages that: the edge connecting modules are sequentially connected with the boundary points to form boundary lines, when one region is enclosed, two boundary lines can be formed, two ends of the two boundary lines are connected, and a closed region can be formed to be a required effective region or a required reaction region.
The preferable scheme is four: preferably, as a first preferred scheme, the background server includes a background acquisition module, a pixel acquisition module, and a gray scale statistics module, where the background acquisition module is configured to acquire a central point according to an effective region and acquire a pixel value of the central point to generate a background value, the pixel acquisition module is configured to sequentially acquire pixel values of all pixel points in a reaction region, when the pixel value is greater than the background value, the pixel value is an effective pixel value, and when the pixel value is less than or equal to the background value, the pixel value is an invalid pixel value and sends the effective pixel value to the gray scale statistics module, and the gray scale statistics module is configured to count the effective pixel value to generate an average gray scale value.
Has the advantages that: the method comprises the steps of obtaining a pixel value of a central point of an effective area as a background value, wherein the background value is the color of a test strip, sequentially obtaining pixel values of pixel points in a reaction area, when the pixel value is larger than the background value, showing that the point has the color presenting the experimental result, namely the effective pixel value, when the pixel value is smaller than or equal to the background value, showing that the point does not have the color presenting the experimental result, or the obtained original image is improperly processed, namely the ineffective pixel value, abandoning the ineffective pixel value, and counting the effective pixel value to obtain an average gray value, so that the experimental result is accurately embodied.
The preferable scheme is five: preferably, in the fourth preferred embodiment, the specified distance is preset in the background acquisition module, and the background acquisition module is configured to form a background region according to the specified distance radiated from the central point, count pixel values of all pixel points in the background region to generate an average pixel value of the background region, and update the background value according to the average pixel value.
Has the advantages that: when the pixel value of the central point is taken as the background value, the error is easily caused by taking the pixel value of only one point, a background area is generated according to the specified distance, and the pixel values of all pixel points in the background area are counted to obtain an average pixel value as the background value, so that the pixel value in the reaction area is effectively judged to be an effective pixel value or an invalid pixel value, and the accuracy of the experimental result is further improved.
The preferable scheme is six: the terminal is used for acquiring the shot image, generating an original image according to the shot image and sending the original image to the background server.
Has the advantages that: shooting a shot image of the experiment result of the reagent card through a terminal, preprocessing the shot image to generate an original image, and further analyzing the gray scale of the original image.
The preferable scheme is seven: preferably, in the sixth preferred embodiment, the terminal includes an image acquisition module, and the image acquisition module is configured to acquire a grayscale image as an original image.
Has the advantages that: the image acquisition module adopts the existing gray level image shooting module, and the shot image is a gray level image and is directly used as an original image, so that the waiting time of an experimental result is reduced.
The preferable scheme is eight: preferably, in the sixth preferred embodiment, the terminal includes an image acquisition module and an image processing module, the image acquisition module is configured to acquire a color image as a captured image, and the image processing module is configured to perform noise reduction on the captured image and convert the noise-reduced captured image from an RGB color to a grayscale color to generate an original image.
Has the advantages that: the image acquisition module adopts current high definition to shoot the module, and the image of shooing is the color image, converts the color image into grey image as original image through image processing module, and the color image more is close to the original condition of reagent card for the experimental result of assay is more accurate, also can save color image and experimental result, so that carry out experimental analysis.
Drawings
Fig. 1 is a logic block diagram of a reagent card gray scale analysis system according to a first embodiment of the present invention.
Fig. 2 is a front cross-sectional view of a collecting terminal according to an embodiment of the present invention.
Fig. 3 is a top half-sectional view of a collection terminal according to an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a left connecting plate 11, a right connecting plate 12, a left expansion plate 21, a right expansion plate 22, a left drying plate 31, a right drying plate 32, a left falling hole 41, a right falling hole 42, a heating strip 5, an air inlet 6 and a limiting rod 7.
Example one
A reagent card gray scale analysis system is shown in attached figure 1 and comprises a terminal and a background server, wherein the terminal comprises an acquisition terminal and a collection terminal in the embodiment, the acquisition terminal comprises an image acquisition module, and the background server comprises a display module, an area defining module, an edge detection module, an edge connection module, a background acquisition module, a pixel acquisition module and a gray scale statistic module.
The image acquisition module is used for acquiring a gray image as an original image I and sending the original image I to the background server. The display module is used for displaying the original image I, the area dividing module is used for acquiring the analysis area, marking the analysis area in the original image I, and sending the marked original image I to the edge detection module as an original image II. The edge detection module is used for sequentially acquiring pixel values of pixel points in the analysis area from left to right after receiving the original image II, generating a pixel difference value according to the pixel value of the current pixel point and the pixel value of the previous pixel point, and marking the current pixel point as a boundary point when the pixel difference value is greater than the pixel threshold value. For example, the pixel threshold is 100, when the pixel value of a certain point is (220, 220, 220), the pixel value of the previous pixel point is (110, 110, 110), the pixel difference value is 110, and the pixel difference value is greater than the pixel threshold, the pixel point is marked as a boundary point.
The edge detection module is used for generating an effective area generation signal when all the pixel points in the analysis area are acquired, and sending an original image II marked with boundary points to the edge connection module as an original image III and the effective area generation signal. The edge connecting module is used for connecting boundary points in sequence from top to bottom to form a boundary line after receiving the original image III, simultaneously connecting two boundary points at the top end, connecting two boundary points at the bottom end to form a closed area, marking the closed area as an effective area, and sending the original image III which is used for marking the effective area as an original image IV to the edge detecting module according to an effective area generating signal.
The edge detection module is used for receiving the original image IV, sequentially obtaining pixel values of pixel points in the effective region from top to bottom, generating a pixel difference value according to the pixel value of the current pixel point and the pixel value of the previous pixel point, and marking the current pixel point as a boundary point when the pixel difference value is larger than a pixel threshold value. The edge detection module is used for generating a reaction region generation signal when all the pixel points in the analysis region are completely acquired, and sending an original image IV marked with boundary points to the edge connection module as an original image V and the reaction region generation signal. The edge connecting module is used for connecting boundary points from left to right to form a boundary line after receiving the original image V, connecting two boundary points at the leftmost end, connecting two boundary points at the rightmost end to form a closed area, marking the closed area as a reaction area, and sending the original image V marked with the reaction area as an original image VI I to the background acquisition module and the pixel acquisition module according to a reaction area generation signal.
And the background acquisition module is used for acquiring a central point according to the marked effective area after receiving the original image VI, acquiring a pixel value as a background value according to the central point and sending the background value to the pixel acquisition module. The pixel obtaining module is used for receiving the original image VI and then sequentially obtaining pixel values of all pixel points in the reaction area, when the pixel values of the pixel points are larger than a background value, the pixel values are effective pixel values, when the pixel values are smaller than or equal to the background value, the pixel values are invalid pixel values, when the pixel values of all the pixel points in the reaction area are obtained, all the effective pixel values are sent to the gray scale statistic module, and the gray scale statistic module is used for counting the effective pixel values to generate an average pixel value as an average gray scale value.
The collecting terminal is used for collecting the reagent card after completing the experiment, as shown in the attached figures 2 and 3, the collecting terminal comprises a frame body with an opening at the top, the two opposite sides of the opening are respectively fixedly connected with a left connecting plate 11 and a right connecting plate 12 through screws, a left accommodating groove penetrating through the left connecting plate and a right accommodating groove penetrating through the right connecting plate are respectively arranged on the left connecting plate 11 and the right connecting plate 12, the left accommodating groove and the right accommodating groove are the same in shape, the left accommodating groove is provided with a left expansion plate 21, the right accommodating groove is provided with a right expansion plate 22, operation cavities for accommodating the left expansion 21 plate or the right expansion plate 22 are respectively arranged in the left connecting plate 11 and the right connecting plate 12, push rod motors are respectively arranged in the operation cavities, the free ends of push rods of the push rod motors are respectively bonded with the left expansion plate 21 or the right expansion plate 22, one end of the left expansion plate 21 far away from the push rod motor is abutted against one end of the right expansion plate 22 far away from the push rod motors, and the reagent card is placed after the contact, and the opening is sealed by the left connecting plate 11, the right connecting plate 12, the left expansion plate 21 and the right expansion plate 22.
The bottom of framework articulates through the pivot respectively has left drying board 31 and right drying board 32, left side drying board 31 and right drying board 32 all incline to the top along pivot department, a plurality of through-holes have all been seted up on left side drying board 31 and the right drying board 32, all can dismantle through the preforming screw on left side drying board 31 and the right drying board 32 and be connected with a plurality of heating strips 5, synthetic rectangle is enclosed with the pivot to heating strips 5, be used for placing the reagent card in the rectangle, the left side and the right side of framework can dismantle through the preforming screw respectively and be connected with the supplementary hot strip relative with heating strip 5 positions. In this embodiment, the heating strips and the auxiliary heating strips are preferably capper heating strips. The left drying plate 31 and the right drying plate 32 are respectively bonded with magnets at the ends far away from the rotating shaft, electromagnets are respectively installed at the left side and the right side of the frame body opposite to the magnets, and the electromagnets are embedded in the frame body. The hinged part of the left drying plate 31 and the frame body is provided with a left falling hole 41, and the hinged part of the right drying plate 32 and the frame body is provided with a right falling hole 42. The bottom of the frame body is bonded with a limiting rod 7, and one end, far away from the bottom, of the limiting rod 7 abuts against the left drying plate 31 and the right drying plate 32 respectively.
The bottom of the frame body is respectively provided with a discharge port opposite to the left falling hole 41 and the right falling hole 42, and the bottom of the frame body is also provided with an air inlet 6 for hot air to enter the frame body. The hot air equipment is arranged outside the frame body and is an existing air heater, and an air outlet of the hot air equipment is fixedly connected with an air inlet 6 of the frame body.
The front side of framework and the relative punishment in rear side position do not are equipped with detection module, and in this embodiment, detection module is infra-red transmitter and infrared receiver, and infra-red transmitter and infrared receiver imbed in the framework. The control mainboard is installed through the screw in the framework, and the welding has host system on the control mainboard, and the flexible controller of left expansion plate 21 and right expansion plate 22 is located left connecting plate 11 and right connecting plate 12 respectively, and the adsorption controller of electro-magnet is located the framework respectively, and host system respectively with flexible controller, adsorption controller, heating strip 5, assist hot strip, detection module, hot-blast apparatus signal connection.
Before the experiment, the films are respectively placed between the left side of the frame body and the left drying plate 31 and between the right side of the frame body and the right drying plate 32, the main control module is used for generating auxiliary heating signals, controlling the heating strips 5 to reach auxiliary heating temperature and controlling the auxiliary heating strips to be opened, at the moment, the heating strips 5 and the auxiliary heating strips adsorb the films, and the films are laid on the left side of the frame body and the left drying plate 31 or the right side of the frame body and the right drying plate 32.
The gray scale counting module is used for generating an average gray scale value and simultaneously generating a completion signal and sending the completion signal to the main control module. After the main control module receives the completion signal, a telescopic control signal is generated and sent to the telescopic controller, when the telescopic controller receives the telescopic control signal, the left telescopic plate 21 is controlled to be accommodated in the left connecting plate 11, and the reagent card falls onto the left drying plate 31 from the left side. Because left drying plate 31 slope sets up, the reagent card is along left drying plate 31 slope, and at this moment, the one end of reagent card and the counterbalance of framework, the infrared ray is sheltered from to the reagent card simultaneously, and detection module detects the reagent card promptly, and host system is used for when detection module detects the reagent card, generates the stoving start signal to send hot-blast apparatus.
And the hot air device is used for introducing hot air into the frame body after receiving the drying start signal and drying the reagent cards on the left drying plate 31. The master control module has preset the countdown, and in this embodiment, the countdown is thirty seconds, and the master control module begins the countdown when being used for generating stoving start signal, when the countdown finishes, generates the collection signal to send for adsorption controller, when adsorption controller received the collection signal, the control electro-magnet switched on, electro-magnet adsorption magnet, left drying plate 31 moved left along articulated department, until heating strip 5 offsets with assisting the heat strip, the film covers in reagent card both sides. And meanwhile, the main control module is used for generating a heating signal, controlling the heating strip 5 to reach the plastic packaging temperature, and enabling the thin film plastic packaging reagent card to be packaged by the heating strip 5. In the process that the left drying plate 31 moves from the inclined state to the vertical state, the left dropping hole 41 gradually becomes larger, and the reagent cards which are subjected to plastic packaging fall from the left dropping hole 41 and are collected.
After the reagent card falls, the infrared ray is not blocked any more, the detection module does not detect the reagent card, and the main control module generates a drying end signal and sends the drying end signal to the hot air equipment when the reagent card is not detected, and simultaneously generates a reset signal and sends the reset signal to the adsorption controller. And the hot air equipment is used for receiving the drying end signal and then not introducing hot air into the frame body. When the adsorption controller receives the reset signal, the electromagnet is controlled to be disconnected, the electromagnet does not adsorb any more magnet, and the left drying plate 31 moves to the right side along the hinged position to reset.
Make remaining reagent on the reagent card by the drying, avoid reagent and other reagent in the laboratory to take place the reaction, the reagent card of drying is sealed through the mode of plastic envelope, firstly, reduce by the dry reagent card and take place the reaction with the water in the air and cause the possibility of pollution, secondly, reduce the sending of the circumstances such as the laboratory accident that causes because of accidental touch reagent card, collect the back to the reagent card of plastic envelope, through unified collection, centralized processing, avoid causing the pollution to the laboratory, the subsequent processing of being convenient for.
Example two
The difference from the first embodiment is that: the acquisition terminal comprises an image acquisition module and an image processing module, wherein the image acquisition module is used for acquiring a color image as a shot image, and the image processing module is used for reducing noise of the shot image and converting the noise-reduced shot image from RGB color to gray color to generate an original image.
The background acquisition module is used for acquiring a central point according to the marked effective region after receiving the original image, radiating the designated distance outwards according to the central point to form a background region, counting pixel values of all pixel points in the background region to generate an average pixel value of the background region, and updating the background value according to the average pixel value. For example, if the specified distance is 20 pixels, the background area is a circular area with a diameter of 41 pixels and the center point as the origin.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The reagent card gray scale analysis system comprises a background server, wherein the background server is used for acquiring an original image, and is characterized in that: the background server is used for identifying and marking an effective area in the original image and identifying and marking a reaction area in the effective area; acquiring pixel values of all pixel points in the reaction region to generate an average gray value;
the background server comprises an edge detection module, the edge detection module is preset with a pixel threshold value, the edge detection module is used for sequentially obtaining pixel values of pixel points according to a specified direction, generating a pixel difference value according to the pixel value of a current pixel point and the pixel value of a previous pixel point, and when the pixel difference value is larger than the pixel threshold value, marking the current pixel point as a boundary point;
when the effective area is identified, pixel values are sequentially obtained from left to right, and when the reaction area is identified, the pixel values are sequentially obtained from top to bottom;
the collecting terminal comprises a frame body with an opening at the top, a left drying plate is hinged to the bottom of the frame body through a rotating shaft, a magnet is bonded to one end, away from the rotating shaft, of the left drying plate, an electromagnet is mounted at a position, opposite to the magnet, of the left side of the frame body, a left falling hole is formed in the hinged position of the left drying plate and the frame body, a limiting rod is bonded to the bottom of the frame body, one end, away from the bottom, of the limiting rod abuts against the left drying plate, a discharging hole, opposite to the position of the left falling hole, is formed in the bottom of the frame body, and an air inlet for hot air to enter the frame body is formed in the bottom of the frame body;
the front side and the rear side of the frame are respectively provided with a detection module at a position opposite to each other, the detection modules are used for detecting reagent cards, the frame is provided with a main control module, and the main control module is used for generating a drying starting signal when the detection modules detect the reagent cards.
2. The reagent card gray scale analysis system of claim 1, wherein: the background server comprises an edge connection module, wherein the edge connection module is used for sequentially connecting boundary points according to a connection direction to form a boundary line and connecting the boundary lines according to a specified direction to form a closed area.
3. The reagent card gray scale analysis system of claim 1, wherein: the background server comprises a background acquisition module, a pixel acquisition module and a gray scale statistics module, wherein the background acquisition module is used for acquiring a central point according to an effective area and acquiring a pixel value of the central point to generate a background value, the pixel acquisition module is used for sequentially acquiring pixel values of all pixel points in a reaction area, when the pixel value is greater than the background value, the pixel value is an effective pixel value, when the pixel value is less than or equal to the background value, the pixel value is an invalid pixel value and sends the effective pixel value to the gray scale statistics module, and the gray scale statistics module is used for counting the effective pixel value to generate an average gray scale value.
4. The reagent card ash analysis system of claim 3, wherein: the background acquisition module is preset with a designated distance and is used for radiating the designated distance outwards according to the central point to form a background area, counting pixel values of all pixel points in the background area to generate an average pixel value of the background area, and updating the background value according to the average pixel value.
5. The reagent card gray scale analysis system of claim 1, wherein: the terminal is used for acquiring the shot image, generating an original image according to the shot image and sending the original image to the background server.
6. The reagent card gray scale analysis system of claim 5, wherein: the terminal comprises an image acquisition module, and the image acquisition module is used for acquiring a gray image as an original image.
7. The reagent card gray scale analysis system of claim 5, wherein: the terminal comprises an image acquisition module and an image processing module, wherein the image acquisition module is used for acquiring a color image as a shot image, and the image processing module is used for reducing noise of the shot image and converting the RGB color of the shot image after noise reduction into gray color to generate an original image.
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