Method and system for designing imaging film presenting 3D gray effect

Abstract

The invention provides an imaging film design method and system presenting a 3D gray effect, and relates to the technical field of imaging film design and manufacturing, the method comprises the following steps: using 3D modeling software, constructing a 3D image according to design requirements, and outputting a 3D file; reading a 3D file, calculating a breadth according to set micro lens parameters, and calculating and outputting a grey-scale map file; generating the grey-scale map in the grey-scale map file into a tiny structure according to the grey-scale map value and probability; performing gray photoetching on the photoetching material according to the gray-scale map containing the micro-structure to form a micro-nano structure with depth change; uV imprinting is carried out, and single-color ink is filled to present different depths. According to the invention, the breakthrough from a single color to color intensity change is realized, the color hierarchy of the presented pattern is clearer, and the visual effect of the imaging film is greatly enriched.

Description

Technical Field

[0001] The present invention relates to the technical field of imaging film design and manufacturing, and in particular to a method and system for designing an imaging film that presents a 3D grayscale effect. Background Art

[0002] With the continuous development of science and technology, imaging film technology has been widely used in various fields. This technology can use the special properties of the film to present a variety of imaging effects, such as dynamic effects, suspension effects and three-dimensional effects. These imaging effects not only enrich the visual experience, but also bring more possibilities to product design, advertising display, art decoration and other fields.

[0003] In traditional imaging film systems, color presentation mainly depends on the filling of micro-nano structures. These micro-nano structures usually have the same filling color and depth, so the presented color remains basically single, or although there are multiple layers of different colors, the intensity of each layer of color is consistent. The limitation of this color presentation method is that it cannot show more delicate and rich color changes, which limits the potential of imaging films in color expression.

[0004] Although traditional imaging film technology has made certain achievements in some aspects, it still has obvious shortcomings in color presentation. Specifically, these shortcomings are mainly reflected in the following aspects:

[0005] Color uniformity: Since the filling color and depth of the micro-nano structure remain consistent, the color presented is often relatively single, lacking in layering and fineness. This limits the diversity and richness of the color expression of the imaging film.

[0006] Color depth cannot be changed: In traditional imaging films, even if there are multiple layers of different colors, the intensity of each layer is fixed and cannot be adjusted according to actual needs. This results in poor effect of imaging films when presenting complex patterns and color gradients.

[0007] In summary, the traditional imaging film technology has obvious deficiencies in color presentation, which limits its application and development in various fields. Therefore, there is an urgent need for an imaging film design technology that can present richer and more delicate color changes to meet market demand and technological development requirements. Summary of the invention

[0008] To this end, the embodiments of the present invention provide a method and system for designing an imaging film that presents a 3D grayscale effect, which is used to solve the problems of color uniformity and inability to change color depth in color presentation of traditional imaging film technology in the prior art.

[0009] In order to solve the above problems, an embodiment of the present invention provides a method for designing an imaging film that presents a 3D grayscale effect, the method comprising:

[0010] Use 3D modeling software to build 3D images according to design requirements and output 3D files;

[0011] Read the 3D file, calculate and output the grayscale image file according to the set microlens parameters and calculation format;

[0012] Probabilistically generating tiny structures from the grayscale image in the grayscale image file according to the grayscale image value;

[0013] Grayscale photolithography is performed on the photolithography material according to the grayscale image containing the microstructure to form a micro-nanostructure with varying depths;

[0014] UV embossing is performed and filled with single-color ink to create different depths.

[0015] Preferably, the reading of the 3D file, calculating and outputting a grayscale image file according to set microlens parameters and calculation format, specifically includes:

[0016] Read the output 3D file;

[0017] Setting microlens parameters, wherein the microlens parameters include focal length f, refractive index n, arrangement mode and arrangement period T;

[0018] Set the calculation format, that is, the arrangement format of microlenses;

[0019] Calculate the coordinates of each micro-image based on the integrated imaging algorithm;

[0020] Merge each micro-image into an overall grayscale image.

[0021] Preferably, the arrangement includes honeycomb arrangement and square arrangement.

[0022] Preferably, the method for calculating the coordinates of each micro-image and text according to the integrated imaging algorithm is:

[0023] Px=(Ix-Lx) / Iz / n*f;

[0024] Py=(Iy-Ly) / Iz / n*f;

[0025] Among them, Ix, Iy, Iz are the grid coordinates in different directions in the 3D data, and I(x, y, z) is the grid coordinates in the 3D data; Lx, Ly are the microlens coordinates in different directions, and L(x, y) is the microlens coordinate; Px, Py are the micro-image coordinates in different directions, and P(x, y) is the micro-image coordinate.

[0026] Preferably, the method of merging each micro-image into an overall grayscale image is:

[0027] T(x,y)=∑P(x,y);

[0028] Among them, T(x,y) is the overall grayscale image.

[0029] Preferably, the generating of microstructures with probability based on the grayscale image value of the grayscale image in the grayscale image file specifically includes:

[0030] Read the grayscale value G of each pixel of the grayscale image in the grayscale image file, where the range of G is 0-255;

[0031] Normalize the grayscale value G of the pixel to obtain the normalized grayscale value G', where the range of G' is 0-1;

[0032] Generates a Gaussian distributed random value 0-1;

[0033] Compare the normalized grayscale value with the random value to determine whether a noise structure is generated at the pixel location.

[0034] Preferably, the method of comparing the normalized grayscale value with the random value to determine whether a noise structure is generated at the pixel position is:

[0035] Compare the normalized grayscale value with the random value. If the normalized grayscale value is greater than or equal to the random value, a noise structure is generated at the corresponding pixel position, and the grayscale value of the pixel position is set to 255. If the normalized grayscale value is less than the random value, no noise structure is generated at the corresponding pixel position, and the grayscale value of the pixel position is set to 0.

[0036] The embodiment of the present invention further provides a system for designing an imaging film that presents a 3D grayscale effect. The system is used to implement the above-mentioned method for designing an imaging film that presents a 3D grayscale effect, and specifically includes:

[0037] 3D modeling and file output module, used to use 3D modeling software to build 3D images according to design requirements and output 3D files;

[0038] A grayscale image file calculation and output module is used to read the 3D file, calculate and output the grayscale image file according to the set microlens parameters and calculation format;

[0039] A grayscale image probability generation module for generating tiny structures is used to generate tiny structures with probability from the grayscale image in the grayscale image file according to the grayscale image value size;

[0040] A grayscale photolithography processing module is used to perform grayscale photolithography on the photolithography material according to a grayscale image containing microstructures to form micro-nanostructures with varying depths;

[0041] UV embossing and ink filling module is used for UV embossing and filling with single-color ink to present different depths.

[0042] An embodiment of the present invention also provides an electronic device, which includes a processor, a memory and a bus system, wherein the processor and the memory are connected via the bus system, the memory is used to store instructions, and the processor is used to execute the instructions stored in the memory to implement the above-mentioned imaging film design method that presents a 3D grayscale effect.

[0043] An embodiment of the present invention further provides a computer storage medium storing a computer software product, wherein the computer software product includes a number of instructions for enabling a computer device to execute the above-mentioned imaging film design method for presenting a 3D grayscale effect.

[0044] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0045] (1) The present invention solves the problems of color uniformity and color depth invariability in traditional imaging film technology in color presentation by introducing grayscale lithography and depth variation of micro-nano structures, thereby achieving a 3D grayscale effect.

[0046] (2) The present invention utilizes 3D design and grayscale definition, combined with a noise structure with a varying duty cycle, to make the color levels of the presented pattern more distinct.

[0047] (3) The present invention realizes the transformation from a single color to color intensity changes through computational imaging and grayscale conversion, thereby improving the color expression and visual effect of the imaging film. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the implementation cases of the present invention or the technical solutions in the prior art, the following is a brief description of the drawings required for use in the embodiments. By referring to the drawings, the features and advantages of the present invention will be more clearly understood. The drawings are schematic and should not be understood as limiting the present invention in any way. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0049] Figure 1 It is a flow chart of a method for designing an imaging film presenting a 3D grayscale effect provided in an embodiment;

[0050] Figure 2 A schematic diagram of a 3D image constructed in the embodiment;

[0051] Figure 3 It is a flowchart of calculating and outputting a grayscale image file in an embodiment;

[0052] Figure 4 This is a flowchart of the embodiment of the invention for generating microstructures by probability from a grayscale image in a grayscale image file according to the grayscale image value size;

[0053] Figure 5 is a grayscale image containing a tiny structure in the embodiment;

[0054] Figure 6 It is a block diagram of a system for designing an imaging film presenting a 3D grayscale effect provided in an embodiment. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Embodiment 1

[0057] In order to solve the problems of color monotony and color depth that cannot be changed in the traditional imaging film technology in the prior art. Figure 1 As shown, an embodiment of the present invention provides a method for designing an imaging film that presents a 3D grayscale effect, the method comprising:

[0058] S1: Use 3D modeling software to build 3D images according to design requirements and output 3D files;

[0059] S2: Read the 3D file, calculate and output the grayscale image file according to the set microlens parameters and calculation format;

[0060] S3: Generate tiny structures with probability according to the grayscale value of the grayscale image in the grayscale image file;

[0061] S4: grayscale photolithography is performed on the photolithography material according to the grayscale image containing the microstructure to form a micro-nano structure with varying depths;

[0062] S5: UV embossing and filling with single-color ink to present different depths.

[0063] It can be seen from the above technical scheme that the embodiment of the present invention proposes a method for designing an imaging film that presents a 3D grayscale effect, aiming to solve the problem that the traditional imaging film has a single color and cannot change the depth. The method constructs the required image through 3D modeling software, and converts the 3D image into a grayscale image file according to the set microlens parameters and calculation format. Subsequently, according to the size of the grayscale image value, a microstructure is generated probabilistically, and a micro-nano structure with depth changes is formed on the photolithographic material using grayscale lithography technology. Then, by UV embossing technology and filling with monochrome ink, the imaging film can present different depth effects. In this scheme, the 3D height directly corresponds to the grayscale value, and the integrated computational imaging technology is used to realize the precise conversion of 3D height and grayscale, and the duty cycle of the noise structure is adjusted according to the change of the grayscale value, thereby enhancing the color layering of the image. This innovative design not only achieves a breakthrough from a single color to a strong and weak color change, but also makes the color layering of the presented pattern clearer, greatly enriching the visual effect of the imaging film.

[0064] In step S1, a 3D image is constructed according to design requirements using 3D modeling software, and a 3D file is output.

[0065] Specifically, first, use professional 3D modeling software (such as Blender, SolidWorks, 3ds Max, etc.) to build (or import existing) 3D images according to design requirements. Figure 2 As shown. Ensure that the 3D image has clear geometric structure and details to support subsequent grayscale image calculation and 3D effect presentation. Then, export the constructed 3D image to a file format suitable for subsequent processing (such as STL, OBJ, FBX, etc.). According to actual needs, simplify or optimize the 3D image as necessary to reduce the calculation complexity while maintaining the integrity of the visual effect. Finally, ensure that the exported 3D file contains all the necessary geometric information so that it can be accurately read and processed in subsequent steps.

[0066] In step S2, the 3D file is read, and the grayscale image file is calculated and output according to the set microlens parameters and the calculation format, such as Figure 3 As shown, specifically including:

[0067] S21: Read the output 3D file.

[0068] S22: Setting microlens parameters, wherein the microlens parameters include focal length f, refractive index n, arrangement mode and arrangement period T, wherein the arrangement mode includes honeycomb arrangement, square arrangement, etc.

[0069] S23: Setting the calculation format, that is, the arrangement format of the microlenses, for example, a square arrangement, the width of the format is W and the height is H, the arrangement period is T, then the number of horizontal coordinates is W / T, and the number of vertical coordinates is H / T.

[0070] S24: Calculate the coordinates of each micro-image according to the integrated imaging algorithm. For example, the grid coordinates in the 3D data are I (x, y, z), and the microlens coordinates are L (x, y). Then, the coordinates P (x, y) of the micro-image are calculated as:

[0071] Px=(Ix-Lx) / Iz / n*f;

[0072] Py=(Iy-Ly) / Iz / n*f;

[0073] Among them, Ix, Iy, Iz are the grid coordinates in different directions in the 3D data; Lx, Ly are the microlens coordinates in different directions; Px, Py are the micro-image coordinates in different directions.

[0074] It should be noted here that if the height range is h1-h2, the height range h1-h2 corresponds to the grayscale 0-255.

[0075] S25: Merge each micro-image into an overall grayscale image T(x, y) = ∑P(x, y). The grayscale image will contain grayscale information for subsequent photolithography processing.

[0076] In step S3, the grayscale image in the grayscale image file is used to generate a microstructure according to the grayscale image value, such as Figure 4 As shown, specifically including:

[0077] Read the grayscale value G of each pixel of the grayscale image in the grayscale image file, where the range of G is 0-255;

[0078] Normalize the grayscale value G of the pixel to obtain the normalized grayscale value G', where the range of G' is 0-1;

[0079] Generates a Gaussian distributed random value 0-1;

[0080] Compare the normalized grayscale value with the random value to determine whether a noise structure is generated at the pixel location.

[0081] Furthermore, the normalized grayscale value is compared with the random value. If the normalized grayscale value is greater than or equal to the random value, a noise structure is generated at the corresponding pixel position, and the grayscale value of the pixel position is set to 255; if the normalized grayscale value is less than the random value, no noise structure is generated at the corresponding pixel position, and the grayscale value of the pixel position is set to 0. The final grayscale image containing the microstructure is as follows: Figure 5 shown.

[0082] In step S4, grayscale photolithography is performed on the photolithography material according to the grayscale image containing the microstructure to form a micro-nano structure with varying depths.

[0083] Specifically, first, ensure that the grayscale lithography equipment (photolithography machine) is in good working condition, and adjust the equipment parameters to adapt to the format and size of the grayscale image file. Then, import the calculated grayscale image file into the photolithography machine for lithography processing. During the lithography process, the photolithography machine controls the intensity or exposure time of the laser according to the different grayscale values ​​of the grayscale image, thereby forming microstructures with different depths on the photolithography material (photoresist). After the lithography is completed, post-processing steps such as development and fixing are performed to remove excess photoresist and retain the desired microstructure.

[0084] In step S5, the UV embossing and ink filling module is used to perform UV embossing and fill single-color ink to present different depths.

[0085] Specifically, first, the microstructure on the photoresist is transferred to the imaging film using UV embossing technology. This step usually involves placing the imaging film on top of the photoresist, then applying pressure and curing it with UV light. The imaging film is then filled with a single-color ink. This step is intended to enhance the 3D grayscale effect and give the image a different sense of depth.

[0086] Finally, after the ink is filled, a curing step is performed to ensure the stability and durability of the material. After the curing is completed, the necessary cleaning process is carried out to remove the excess ink.

[0087] Through the detailed implementation of the above steps, an imaging film with a 3D grayscale effect can be successfully designed and produced. The imaging film presents a pattern with distinct color levels, achieving a transition from a single color to a color intensity change.

[0088] Embodiment 2

[0089] like Figure 6 As shown, the present invention provides a system for designing an imaging film that presents a 3D grayscale effect. The system is used to implement the method for designing an imaging film that presents a 3D grayscale effect of the first embodiment, and specifically includes:

[0090] The 3D modeling and file output module 100 is used to use 3D modeling software to construct a 3D image according to design requirements and output a 3D file;

[0091] Grayscale image file calculation and output module 200, used to read 3D files, calculate and output grayscale image files according to the set microlens parameters and calculation format;

[0092] A grayscale image probability generation module 300 is used to generate a tiny structure by probability from a grayscale image in a grayscale image file according to the grayscale image value size;

[0093] Grayscale photolithography processing module 400, used to perform grayscale photolithography on the photolithography material according to the grayscale image containing the microstructure, so as to form a micro-nano structure with varying depths;

[0094] The UV embossing and ink filling module 500 is used for UV embossing and filling single-color ink to present different depths.

[0095] A system for designing an imaging film that presents a 3D grayscale effect in the present embodiment is used to implement the aforementioned method for designing an imaging film that presents a 3D grayscale effect. Therefore, the specific implementation method of the system for designing an imaging film that presents a 3D grayscale effect can be seen in the embodiment part of the aforementioned method for designing an imaging film that presents a 3D grayscale effect. For example, a 3D modeling and file output module 100, a grayscale image file calculation and output module 200, a grayscale image probability generation microstructure module 300, a grayscale lithography processing module 400, and a UV imprinting and ink filling module 500 are respectively used to implement steps S1, S2, S3, S4, and S5 in the aforementioned method for designing an imaging film that presents a 3D grayscale effect. Therefore, its specific implementation method can refer to the description of the corresponding embodiments of each part. In order to avoid redundancy, it will not be repeated here.

[0096] Embodiment 3

[0097] An embodiment of the present invention provides an electronic device, which includes a processor, a memory and a bus system. The processor and the memory are connected through the bus system. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory to implement the above-mentioned imaging film design method that presents a 3D grayscale effect.

[0098] Embodiment 4

[0099] An embodiment of the present invention provides a computer storage medium storing a computer software product. The computer software product includes several instructions for enabling a computer device to execute the above-mentioned imaging film design method presenting a 3D grayscale effect.

[0100] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0101] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0102] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0103] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A method for designing an imaging film that presents a 3D grayscale effect, characterized in that: include: Use 3D modeling software to build 3D images according to design requirements and output 3D files; Read the 3D file, calculate and output the grayscale image file according to the set microlens parameters and calculation format; Probabilistically generating tiny structures from the grayscale image in the grayscale image file according to the grayscale image value; Grayscale photolithography is performed on the photolithography material according to the grayscale image containing the microstructure to form a micro-nanostructure with varying depths; UV embossing is performed and filled with single-color ink to create different depths.

2. The method for designing an imaging film showing a 3D grayscale effect according to claim 1, characterized in that: The reading of the 3D file, and calculating and outputting a grayscale image file according to the set microlens parameters and the calculation format, specifically includes: Read the output 3D file; Setting microlens parameters, wherein the microlens parameters include focal length f, refractive index n, arrangement mode and arrangement period T; Set the calculation format, that is, the arrangement format of microlenses; Calculate the coordinates of each micro-image based on the integrated imaging algorithm; Merge each micro-image into an overall grayscale image.

3. The method for designing an imaging film showing a 3D grayscale effect according to claim 2, characterized in that: The arrangement modes include honeycomb arrangement and square arrangement.

4. The method for designing an imaging film showing a 3D grayscale effect according to claim 2, characterized in that: The method for calculating the coordinates of each micro-image according to the integrated imaging algorithm is: Px=(Ix-Lx) / Iz / n*f; Py=(Iy-Ly) / Iz / n*f; Among them, Ix, Iy, Iz are the grid coordinates in different directions in the 3D data, and I(x, y, z) is the grid coordinates in the 3D data; Lx, Ly are the microlens coordinates in different directions, and L(x, y) is the microlens coordinate; Px, Py are the micro-image coordinates in different directions, and P(x, y) is the micro-image coordinate.

5. The method for designing an imaging film showing a 3D grayscale effect according to claim 4, characterized in that: The method for merging each micro-image into an overall grayscale image is: T(x,y)=∑P(x,y); Among them, T(x,y) is the overall grayscale image.

6. The method for designing an imaging film showing a 3D grayscale effect according to claim 1, characterized in that: The method of generating a microstructure with probability based on the grayscale image value of the grayscale image in the grayscale image file specifically includes: Read the grayscale value G of each pixel of the grayscale image in the grayscale image file, where the range of G is 0-255; Normalize the grayscale value G of the pixel to obtain the normalized grayscale value G', where the range of G' is 0-1; Generates a Gaussian distributed random value 0-1; Compare the normalized grayscale value with the random value to determine whether a noise structure is generated at the pixel location.

7. The method for designing an imaging film showing a 3D grayscale effect according to claim 6, characterized in that: The method of comparing the normalized grayscale value with the random value to determine whether a noise structure is generated at the pixel position is: Compare the normalized grayscale value with the random value. If the normalized grayscale value is greater than or equal to the random value, a noise structure is generated at the corresponding pixel position, and the grayscale value of the pixel position is set to 255. If the normalized grayscale value is less than the random value, no noise structure is generated at the corresponding pixel position, and the grayscale value of the pixel position is set to 0.

8. An imaging film design system showing a 3D grayscale effect, characterized in that: The system is used to implement the imaging film design method for presenting 3D grayscale effect as described in any one of claims 1 to 7, specifically comprising: 3D modeling and file output module, used to use 3D modeling software to build 3D images according to design requirements and output 3D files; A grayscale image file calculation and output module is used to read the 3D file, calculate and output the grayscale image file according to the set microlens parameters and calculation format; A grayscale image probability generation module for generating tiny structures is used to generate tiny structures with probability from the grayscale image in the grayscale image file according to the grayscale image value size; A grayscale photolithography processing module is used to perform grayscale photolithography on the photolithography material according to a grayscale image containing microstructures to form micro-nanostructures with varying depths; UV embossing and ink filling module is used for UV embossing and filling with single-color ink to present different depths.

9. An electronic device, characterized in that: The electronic device includes a processor, a memory and a bus system, the processor and the memory are connected through the bus system, the memory is used to store instructions, and the processor is used to execute the instructions stored in the memory to implement the imaging film design method presenting a 3D grayscale effect as described in any one of claims 1 to 7.

10. A computer storage medium, characterized in that: The computer storage medium stores a computer software product, which includes a number of instructions for enabling a computer device to execute the imaging film design method for presenting a 3D grayscale effect as described in any one of claims 1 to 7.

Images