A printing method, device and storage medium for realizing 3D relief effect

Abstract

The application discloses a printing method, equipment and storage medium for realizing 3D relief effect, and the method comprises the following steps: S1, importing a printing driver in color correction software of rip; S2, confirming a printing resolution according to the printing driver of step S1, and selecting a resolution matched with a printer in the color correction software of rip; S3, confirming the maximum ink amount of a single channel and the maximum ink amount of a composite channel of the printer by using ink cutting technology according to the printing driver of step S1; and S4, setting linearization data according to the resolution data and the maximum ink amount of the single channel and the maximum ink amount of the composite channel obtained from step S2 and step S3. The application solves the problem that multiple nozzles are needed to realize 3D relief effect in a planar printer in the prior art, and achieves the purpose of realizing 3D relief effect by a single nozzle. The application finds the key ink amount value by accurately increasing and decreasing the ink amount and observing the ink flow condition, sets the linear ink amount in a decreasing mode by using the ink amount threshold, and realizes the 3D relief effect by using the linear ink amount.

Description

Technical Field

[0001] This invention relates to the technical field of printers, and in particular to a printing method, apparatus, and storage medium for achieving 3D relief effects. Background Technology

[0002] Publication document CN108124077B discloses a digital printing method, apparatus, and digital printing device for embossed patterns. The method involves raster image processing of source image data to generate various types of color data and spot color white data. A data channel for small dot printing is established for each type of color data, and two data channels for small dot printing and large dot printing are established for the spot color white data. The printheads of the digital printing device are marked with these data channels. The color data in each data channel is then assigned one-to-one to the corresponding marked printhead for printing. For each printable point on the thin printing material, the digital printing device can achieve the embossed pattern in a single printing process, eliminating the need for multiple reprints, reducing time consumption, and improving production efficiency.

[0003] In current solutions, two spot color data channels are typically generated via RIP to achieve the desired color rendering effect. However, this process requires the use of white ink to meet color requirements.

[0004] Due to the special characteristics of white ink in printing or inkjet printing operations, to effectively use white ink to achieve the desired presentation effect, it means that the number of white ink printheads must be increased accordingly. Whenever a scheme with two spot color data channels and white ink is used is enabled, it is necessary to expand the configuration of white ink printheads.

[0005] However, this approach brings significant problems. On the one hand, for many customers, increasing the number of white ink printheads directly leads to a substantial increase in equipment costs. Customers need to purchase more printheads and bear a series of related costs such as installation and maintenance, making the overall cost burden heavy. This cost increase has become a major obstacle for customers who are particularly sensitive to equipment costs.

[0006] On the other hand, under certain specific needs, such as when customers require miniaturized equipment, the space in the equipment is very limited, making it impossible to install too many printheads. The existing solution that relies on increasing the number of white ink printheads to accommodate two spot color data channels and white ink usage cannot meet the design requirements of such miniaturized equipment, limiting the application of this solution in such specific equipment and hindering the expansion of related equipment in diversified development directions such as miniaturization and flexibility.

[0007] In summary, while existing solutions meet the requirements of specific spot color data channels and white ink usage, they also have problems that urgently need to be solved, such as increased customer costs due to the increased number of printheads and unsuitability for miniaturized equipment designs. This has driven the need for this invention to improve this technical field. Summary of the Invention

[0008] In order to solve the above-mentioned technical problems, the present invention provides a printing method, device and storage medium for achieving 3D relief effect.

[0009] The technical solution of this invention is implemented as follows:

[0010] A printing method for achieving a 3D relief effect includes the following steps:

[0011] S1, import the print driver into the color calibration software of RIP;

[0012] S2, based on the print driver in step S1, confirm the print resolution and select the resolution that matches the printer in the RIP color calibration software;

[0013] S3. Based on the print driver in step S1, use ink cut-off technology to confirm the maximum ink volume of the printer's single channel and the maximum ink volume of the composite channel.

[0014] S4. Based on the resolution data obtained in steps S2 and S3, as well as the maximum ink volume of a single channel and the ink volume of a composite channel, set the linearization data and perform printing and scanning of the linearized data.

[0015] S5. Based on the linearized data from step S4, adjust the data and confirm whether a second linearization is needed, then save the linear file.

[0016] S6. Based on the linear file obtained in step S5, perform the step of generating an ICC file, print and scan the data printed by the device, and perform ICC file conversion;

[0017] S7. Based on the ICC file obtained in step S6, generate a curve file, import the image for printing, select the print resolution and the corresponding curve, and you can print a pattern with embossing.

[0018] Preferably, in step S3, confirming the maximum ink volume of a single channel of the printer specifically involves setting the printhead to single-channel printing, setting the ink volume to 100%, scanning the printing medium after printing to obtain the color saturation m of the printing medium, and then printing. The ink volume is reduced by 5% each time until the ink volume closest to the color saturation m value is found. Then printing is performed again, and the ink volume is increased by 1% each time until the ink volume K value with the color saturation m value is found.

[0019] Preferably, in step S3, confirming the maximum ink volume of the printer's composite channel specifically involves setting the ink jet volume of the composite channel to 100%, observing whether ink flow occurs on the printing medium after printing, and reducing the ink volume by 5% for each print after ink flow occurs, until the ink volume L value is found and ink flow on the printing medium no longer occurs.

[0020] Preferably, in step S4, the printing and scanning of linearized data specifically involves setting a threshold for linearized data, with a single-channel threshold of K and a composite channel threshold of L, and setting a linear reduction based on the resolution of the printed image.

[0021] Preferably, in step S5, the linear data obtained in step S4 is first previewed for printing to confirm the color effect. If the gradient of the color effect cannot meet the embossing effect required by the image, the linear data is adjusted multiple times, and the adjusted linear data is saved.

[0022] Preferably, in step S6, the printing and scanning reading of data printed by the device specifically involves obtaining the printing parameters of the printing device and matching the linear data by adjusting the printing parameters.

[0023] A printing device for achieving a 3D relief effect includes at least one processor, at least one memory, and computer program instructions stored in the memory. When the computer program instructions are executed by the processor, the method for achieving a 3D relief effect is described above.

[0024] A storage medium storing computer program instructions, characterized in that, when the computer program instructions are executed by a processor, the aforementioned method for achieving a 3D relief effect is implemented.

[0025] This invention solves the problem that multiple printheads are needed to achieve 3D relief effects in flatbed printers in the prior art, and achieves the purpose of printing 3D relief effects with a single printhead. This invention finds the key ink volume value by precisely increasing or decreasing the ink volume and observing the ink flow, and sets a decreasing linear ink volume by using the ink volume threshold, and uses the linear ink volume to achieve the 3D relief effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a method for achieving a 3D relief effect according to the present invention.

[0027] Figure 2 This is a schematic diagram of setting linearized data in step S4 of the present invention. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, exemplary embodiments will be described in detail below, examples of which are illustrated in the accompanying drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of methods and systems consistent with some aspects of this application as detailed in the appended claims.

[0029] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0030] Example 1

[0031] like Figure 1 and Figure 2 As shown, the present invention provides a printing method for achieving a 3D relief effect, comprising the following steps:

[0032] S1. Import the printer driver into the RIP color calibration software. Open the RIP color calibration software, find the import option in the main interface menu bar, and the software will automatically start importing the driver. During the process, an import progress bar will be displayed. Wait for the import process to complete. After successful import, the software interface will display relevant information indicating that a connection with the printer has been successfully established.

[0033] S2, based on the print driver from step S1, confirm the print resolution and select a resolution that matches the printer in the RIP color calibration software. After the print driver is successfully imported into the RIP color calibration software, a series of resolution options supported by the current printer will be displayed. These resolutions are expressed in dots per inch (dpi), and common specifications include 300x300dpi, 600x600dpi, 720x720dpi, and 1200x1200dpi. Different printers support different resolution ranges due to differences in their hardware performance.

[0034] S3, based on the printing driver in step S1, using ink cut-off technology, confirm the maximum ink volume of the printer's single channel and the maximum ink volume of the composite channel; preferably, in step S3, confirming the maximum ink volume of the printer's single channel specifically involves setting the printhead to single-channel printing, setting the ink volume to 100%, scanning the printing medium after printing to obtain the color saturation m of the printing medium, and then printing, reducing the ink volume by 5% each time until finding the ink volume closest to the color saturation m value, and then printing again, increasing the ink volume by 1% each time until finding the ink volume K value with the color saturation m value.

[0035] Preferably, in step S3, confirming the maximum ink volume of the printer's composite channel specifically involves setting the ink jet volume of the composite channel to 100%, observing whether ink flow occurs on the printing medium after printing, and reducing the ink volume by 5% for each print after ink flow occurs, until the ink volume L value is found and ink flow on the printing medium no longer occurs.

[0036] First, in the RIP color calibration software or the printer's corresponding interface, set the printhead to single-channel printing mode and select the specific color channel to be tested. In the print settings, initially set the ink volume of that single channel to 100%, then create a simple test pattern file containing a pure color block. Send this test pattern file to the printer for printing. After printing, use a professional color scanning device to scan the pure color block on the print media. Before scanning, ensure that the scanning device is correctly connected to the computer and that the corresponding drivers and scanning software are installed and functioning properly. Open the scanning software and, according to the operating requirements of the scanning device, set the scanning resolution, color mode, and scanning range parameters appropriately. Then, place the print media containing the pure color block flat on the scanning table of the scanning device and start the scanning operation to obtain the color saturation value corresponding to the pure color block, denoted as m. Next, gradually reduce the ink volume of that single channel and repeat the printing test. Each time you print, reduce the ink volume by 5% from the previous print; that is, the ink volume after the first reduction is 95%, the second is 90%, and so on. Following the same procedure described above, each printout includes a test pattern containing a solid color block with the corresponding inkjet volume. After printing, the pattern is scanned to obtain new color saturation data, which is then compared to the initially obtained color saturation value (m). This process continues until the inkjet volume value that most closely approximates the m value is found. This process requires careful observation and comparison of the color saturation data changes obtained from each scan to ensure data accuracy. Multiple scans may be necessary to minimize errors. After finding the inkjet volume that most closely approximates the m value, further finer adjustments are made, increasing the inkjet volume by 1% with each printout. For example, if the previously found approximate inkjet volume is 70%, then subsequent printouts, scans, and saturation comparisons are performed with inkjet volumes of 71%, 72%, etc., until the precise inkjet volume that makes the color saturation exactly reach the m value is found. This inkjet volume value is recorded as the maximum ink volume K value for that single channel (e.g., the cyan channel).

[0037] For each color channel in the CMYK four-color system, the above steps must be followed sequentially for testing to determine its maximum ink volume value K. This provides a key parameter basis for subsequent linearization data settings. In the printing software, initially set the ink volume of the composite channel to 100%, then create a test sample file containing a multi-color mixed pattern and send it to the printer. During printing, ensure the printer is in optimal working condition, including checking sufficient ink levels, clean and accurately calibrated printheads, and ensuring the printing media is placed flat, accurately positioned, and in a stable printing environment. This ensures the printed test sample accurately reflects the actual printing effect. After printing, immediately and carefully observe the surface of the printing media for ink flow phenomena, i.e., whether the ink flows along the paper texture, excessively penetrates, and damages the integrity of the pattern and color accuracy. Check for ink accumulation or uneven diffusion in different color mixing areas and darker areas. Once ink flow is detected, gradually reduce the ink volume of the composite channel and repeat the printing test. Each time you print, reduce the ink volume by 5% compared to the previous print. For example, after the first reduction, the ink volume becomes 95%. Print a test sample containing a multi-color mixed pattern again following the above steps. After printing, continue to observe whether there is still ink flow. Continue this operation until you find an ink volume value (denoted as L value) at which ink flow no longer occurs on the printing media. This L value is the maximum ink volume of the composite channel.

[0038] S4. Based on the resolution data obtained in steps S2 and S3, as well as the maximum ink volume of a single channel and the ink volume of a composite channel, set the linearization data and perform printing and scanning of the linearized data.

[0039] Preferably, in step S4, the printing and scanning of linearized data specifically involves setting a threshold for linearized data, with a single-channel threshold of K and a composite channel threshold of L, and setting a linear reduction based on the resolution of the printed image.

[0040] Preferably, in step S4, setting the linearized data specifically involves setting the linearity to be the linearity of an upper parabola, and the peak value of the upper parabola, i.e., the threshold K of the single channel and the threshold L of the composite channel, the ink reduction amount is a, the reduction number is x, and the value of a changes with the reduction number x according to the upper parabola.

[0041] In step S4, since higher resolution means denser pixel distribution per unit area and can carry more ink, the ink volume thresholds (K and L) in the corresponding linearized data can be appropriately increased. Conversely, at lower resolutions, the pixel distribution is sparse, and to avoid problems such as ink accumulation and excessive color mixing, the ink volume thresholds should be lowered accordingly. For example, when the resolution decreases from 1200x1200dpi to 600x600dpi, according to preset rules (which can be based on experience or multiple tests to summarize the specific adjustment ratio) and the above functional relationship, the values ​​of K and L are adjusted accordingly to change the ink volume settings at different resolutions. This ensures that ideal color transition and presentation effects can be achieved under different resolution conditions, laying a good color foundation for creating 3D relief effects. Following this approach, based on the ink volume threshold variation law corresponding to different resolutions, the ink volume parameters of each channel at different resolutions are accurately configured in the printing software so that the ink volume change conforms to the desired linearized color relationship (exhibiting an upward parabola or similar shape), ensuring that the color changes proportionally and naturally with the ink volume.

[0042] S5. Based on the linearized data from step S4, adjust the data and confirm whether a second linearization is needed, then save the linear file.

[0043] Preferably, in step S5, the linear data obtained in step S4 is first previewed for printing to confirm the color effect. If the gradient of the color effect cannot meet the embossing effect required by the image, the linear data is adjusted multiple times, and the adjusted linear data is saved.

[0044] Send the generated linearization test file to the printer for printing. Before printing, double-check that all printer settings are accurate, including the selected print resolution, ink volume parameters for each channel, and print media type. Ensure the printer is in good working order, check that the ink level is sufficient, the printhead is clean and accurately calibrated, and maintain a stable printing environment (ideally, the ambient temperature should be between 18℃ and 25℃, and the relative humidity between 40% and 60%, avoiding external factors such as vibration and electromagnetic interference). This ensures that the printed linearization test sample accurately reflects the color performance corresponding to the set linearization data, and that each color element on the test sample displays the expected color effect. After printing, scan the linearization test sample using a professional color scanning device. Before scanning, adjust the scanning resolution, color mode, and scanning range according to the scanning device's operating requirements. This allows the scanning device to accurately acquire the actual color data of each color element on the sample and feed this data back to the RIP color calibration software, providing a basis for subsequent data adjustments. During the scanning process, it is essential to ensure the stability of the scanning equipment to avoid issues such as blurry scanned images and color deviations, thereby guaranteeing that the acquired scanned data is authentic and reliable, accurately reflecting the actual color of the printed sample.

[0045] S6. Based on the linear file obtained in step S5, perform the step of generating an ICC file, print and scan the data printed by the device, and perform ICC file conversion;

[0046] Preferably, in step S6, the printing and scanning reading of data printed by the device specifically involves obtaining the printing parameters of the printing device and matching the linear data by adjusting the printing parameters.

[0047] After printing, the linearization test sample is scanned using professional color scanning equipment. Before scanning, the scanning resolution, color mode, and scanning range parameters must be set appropriately according to the operating requirements of the scanning equipment. This ensures that the scanning equipment can accurately acquire the actual color data of each color element on the sample and feed this data back to the RIP color calibration software, providing a basis for subsequent data adjustments. Issues such as a lack of three-dimensionality (the inability to achieve the desired relief effect after color mixing) are identified through detailed comparative analysis. This precisely pinpoints the specific areas and manifestations of the deviation between the actual and desired colors. Ink volume compensation tools are then used to directly increase or decrease the corresponding ink volume values ​​for precise color correction in specific ink volume ranges. For example, if the saturation of a certain color in the medium ink volume range is consistently insufficient, the ink volume compensation function is used to appropriately increase the ink volume in that range. The color changes are observed, and adjustments are made repeatedly until a satisfactory saturation effect is achieved, ensuring that the color is accurately presented at different ink volume stages, conforming to the color change pattern expected by the linearization data.

[0048] After the initial linearization data adjustment, it is necessary to comprehensively evaluate the overall color performance and whether the correspondence between color and ink volume has reached a relatively ideal linear state. For complex color areas formed by the mixing of multiple colors in the composite channel, it is necessary to thoroughly evaluate whether the color mixing effect meets the theoretical expectations and the requirements for creating color hierarchy and three-dimensionality for the 3D relief effect. It is also necessary to check whether there are still problems such as color imbalance and lack of three-dimensionality caused by improper color mixing ratio. This ensures that the color mixing of the composite channel can accurately simulate the light and shadow changes caused by the unevenness of the object surface and reflect the three-dimensional visual experience that the relief effect should have.

[0049] If, after the initial adjustment, the linearity of some color areas is still found to be poor—for example, significant color deviations at certain ink volume nodes, insufficiently smooth color transitions, or unsatisfactory color mixing effects in composite channels—then a secondary linearization operation needs to be considered. Secondary linearization means repeating the process in step S4: resetting the linearization data, printing and scanning to obtain new actual color data, and then returning to step S5 to process the data again according to the aforementioned analysis and adjustment process. This process is repeated until a satisfactory linear effect is achieved, ensuring that the correspondence between color and ink volume accurately matches the parabolic linearization requirements.

[0050] S7. Based on the ICC file obtained in step S6, generate a curve file, import the image for printing, select the print resolution and the corresponding curve, and you can print a pattern with embossing.

[0051] A printing device for achieving a 3D relief effect includes at least one processor, at least one memory, and computer program instructions stored in the memory. When the computer program instructions are executed by the processor, the method for achieving a 3D relief effect is described above.

[0052] A storage medium storing computer program instructions, characterized in that, when the computer program instructions are executed by a processor, the aforementioned method for achieving a 3D relief effect is implemented.

[0053] Example 2

[0054] This invention provides a printing method for achieving a 3D relief effect, comprising the following steps:

[0055] S1 involves collecting a large number of high-quality images containing different types of relief objects. These images should cover the relief presentation effects under various styles, materials, and lighting conditions to ensure the diversity and representativeness of the dataset. Image sources can include professional photography websites, art databases, and self-taken photos, ensuring that the acquired images have clear textures, distinct light and shadow relationships, and clearly identifiable relief features. Each collected relief image is meticulously annotated, with a focus on annotating the pixel regions corresponding to the raised and recessed parts of the relief, and recording the color saturation values ​​of these regions. For example, for an image of an ancient architectural relief wall, the pixel regions containing the raised decorative patterns of the relief and their corresponding high-saturation color values, as well as the pixel regions of the recessed parts of the wall and their relatively lower saturation values, are manually annotated. This annotation information is stored one-to-one with the image, forming a relief image dataset with accurate color saturation annotations, providing accurate supervision information for subsequent neural network learning.

[0056] S2 performs preprocessing operations on the collected and labeled image dataset to make it more suitable for neural network training. Image size normalization adjusts all images to a fixed size, which facilitates subsequent batch input into the neural network for processing and also helps improve the stability of model training.

[0057] S3. Construct a neural network, using a convolutional neural network (CNN) architecture for image feature learning as the foundation, such as VGG network, ResNet network, etc., or design a relatively lightweight but effective CNN structure according to actual needs. These network architectures, through the combination of components such as convolutional layers, pooling layers, and fully connected layers, can effectively extract local and global features in images, and have good performance in learning the relationship between color saturation changes and spatial structure in relief images;

[0058] The system includes an input layer that receives preprocessed image data, the size of which is determined based on the normalized image size; a combination of convolutional and pooling layers: multiple convolutional and pooling layers are sequentially set. The convolutional layers are used to extract local features of the image, scanning the image with convolutional kernels of different sizes to generate feature maps; the pooling layers downsample the feature maps, reducing the amount of data while retaining the main features and improving computational efficiency. For example, three convolutional layers can be set with 16, 32, and 64 kernels respectively, a stride of 1, and an appropriate activation function. Each convolutional layer is followed by a 2×2 max-pooling layer to progressively extract the image's feature information; fully connected layers: after feature extraction by multiple convolutional and pooling layers, the resulting feature maps are flattened into one-dimensional vectors and connected to several fully connected layers to further integrate the feature information. The number of neurons in the fully connected layers can be progressively reduced, and the last fully connected layer outputs the dimensional information corresponding to the desired target result.

[0059] S4. Choose an appropriate loss function to measure the difference between the neural network output and the actual labeled color saturation information, so as to guide the network to continuously optimize parameters and reduce this difference during training. A commonly used loss function is the mean squared error (MSE) loss function, which calculates the average squared error between the predicted color saturation value and the actual labeled saturation value. By minimizing this error, the network learns the correct saturation change pattern to achieve accurate embossing effect simulation. Assuming the network predicts a color saturation value of , the actual labeled saturation value is , and the number of pixels in the image is , then the formula for calculating the mean squared error loss function is as follows:

[0060]

[0061] Preferably, a suitable optimization algorithm is selected to update the parameters of the neural network, causing it to converge in the direction of minimizing the loss function. Common optimization algorithms include stochastic gradient descent (SGD) and its variants, such as Adagrad, Adadelta, RMSProp, and Adam.

[0062] S5, the specific training of the neural network model.

[0063] S51. The preprocessed, labeled relief image dataset is divided into training, validation, and test sets according to a certain ratio. For example, typically 70% of the images can be used as the training set for network parameter learning; 20% can be used as the validation set to evaluate the model's performance during training, adjusting the model's hyperparameters based on metrics such as loss and accuracy on the validation set to prevent overfitting; and the remaining 10% can be used as the test set to finally evaluate the model's generalization ability and effectiveness on unseen data, measuring the model's actual performance.

[0064] S52, the training set data is input in batches into the constructed neural network model, and training is performed according to the set loss function and optimization algorithm. In each training round, the model will sequentially perform forward propagation on all image data in the training set, that is, calculate the predicted color saturation output from the input image through each layer of the network, and perform backpropagation operation, continuously adjusting the weights and biases of the network, so that the loss function value gradually decreases, and the model's ability to learn the color saturation variation law in the relief image gradually improves. During the training process, the performance index changes on the validation set are closely monitored, such as calculating the loss value, accuracy and other indicators on the validation set after a certain number of training rounds.

[0065] S53. After training is complete, the trained model is evaluated using a test set. The loss value, accuracy, and other evaluation metrics related to the embossing effect are calculated on the test set to determine whether the model meets the expected performance requirements. If the model performance is unsatisfactory, the reasons can be further analyzed, such as checking for insufficient data, unreasonable network architecture, or improper hyperparameter settings. Then, targeted improvements can be made, such as increasing the dataset size, adjusting the network structure, readjusting hyperparameters, and retraining and evaluating until a satisfactory model is obtained.

[0066] S6. Input the ordinary image to which the embossing effect needs to be added into the trained neural network model. These images can be of various formats, but they need to undergo the same preprocessing operations as the training data so that the model can correctly process and output the corresponding results. The model analyzes the input ordinary image, and based on the learned embossing color saturation variation rules, outputs the color saturation adjustment value corresponding to each pixel. Then, it adjusts the color saturation of the input image based on these values. For example, for pixel areas in the image that the model judges to have an embossed raised effect, its color saturation is increased; for pixels judged to be recessed areas, its color saturation is decreased, thereby generating a new image with an embossing effect.

[0067] S7 imports the image with an embossed effect generated by neural network processing into the printing process. Based on the printer's characteristics and the desired print quality, it performs color management operations, including loading a suitable ICC file and selecting a print resolution that matches the printer. After completing the preparation work such as color management and resolution settings, the image is sent to the printer for printing. During the printing process, the printer is ensured to be in good working condition. Finally, the printed work with an embossed effect is output. The embossed effect of the printed product is observed to see if it meets expectations, such as whether the three-dimensional effect is obvious and whether the color transition is natural.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A printing method for achieving a 3D relief effect, characterized in that, Includes the following steps: S1, import the print driver into the color calibration software of RIP; S2, based on the print driver in step S1, confirm the print resolution and select the resolution that matches the printer in the RIP color calibration software; S3. Based on the print driver in step S1, use ink cut-off technology to confirm the maximum ink volume of the printer's single channel and the maximum ink volume of the composite channel. S4. Based on the resolution data obtained in steps S2 and S3, as well as the maximum ink volume of a single channel and the maximum ink volume of a composite channel, set the linearization data and perform printing and scanning of the linearization data. S5. Based on the linearization data settings in step S4, adjust the data, confirm whether secondary linearization is needed, and then save the linear file. S6. Based on the linear file obtained in step S5, perform the step of generating an ICC file, print and scan the data printed by the device, and perform ICC file conversion; S7. Based on the ICC file obtained in step S6, generate a curve file, import the image for printing, select the printing resolution and the corresponding curve, and you can print a pattern with embossing. In step S4, the printing and scanning of linearized data specifically involves setting a threshold for linearized data, with a single-channel threshold of K and a composite channel threshold of L, and setting a linear reduction based on the resolution of the printed image.

2. The printing method for achieving a 3D relief effect according to claim 1, characterized in that, In step S3, confirming the maximum ink volume of a single channel of the printer specifically involves setting the printhead to single-channel printing, setting the ink volume to 100%, scanning the printing medium after printing to obtain the color saturation m of the printing medium, and then printing. The ink volume is reduced by 5% each time until the ink volume closest to the color saturation m value is found. Then printing is performed again, and the ink volume is increased by 1% each time until the ink volume K value with the color saturation m value is found.

3. The printing method for achieving a 3D relief effect according to claim 1, characterized in that, In step S3, confirming the maximum ink volume of the printer's composite channel specifically involves setting the ink volume of the composite channel to 100%, observing whether ink flow occurs on the printing medium after printing, and reducing the ink volume by 5% for each print after ink flow occurs, until the ink volume L value is found and ink flow on the printing medium no longer occurs.

4. The printing method for achieving a 3D relief effect according to claim 1, characterized in that, In step S5, specifically, the linear data obtained in step S4 is first previewed for printing to confirm the color effect. If the gradient of the color effect cannot meet the embossing effect required by the image, the linear data is adjusted multiple times, and the adjusted linear data is saved.

5. The printing method for achieving a 3D relief effect according to claim 1, characterized in that, In step S6, the printing and scanning reading of data printed by the device specifically involves obtaining the printing parameters of the printing device and matching the linear data by adjusting the printing parameters.

6. A printing device for achieving a 3D relief effect, characterized in that, It includes at least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method described in any one of claims 1-5.

7. A storage medium storing computer program instructions thereon, characterized in that, When the computer program instructions are executed by the processor, the method described in any one of claims 1-5 is implemented.

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