Rithophane Printing System Using AI Color Calibration Technique

Abstract

The present invention relates to a color lithophane printing system that applies AI color correction technology, which uses artificial intelligence for color lithophane to correct the color through comparison with the original color, and then uses a 3D printer to print with a thickness corresponding to the corrected color. To this end, the present invention comprises: an image scanning unit (100) for scanning an original image for a lithophane; a file conversion unit (210) for converting the original image scanned by the image scanning unit (100) into a file capable of 3D printing; an image cutting unit (220) for cutting the original image scanned by the image scanning unit (100) into unit images of a predetermined size; a color comparison unit (230) for deriving a color of a similar color model by comparing the color corresponding to the unit image cut by the image cutting unit (220) with the color of a color model using artificial intelligence; a color storage unit (240) for storing location information of the color corresponding to the unit image cut by the image cutting unit (220) and color information of the similar color model derived by the color comparison unit (230); and a lithophane setting unit (250) for setting the color and thickness of a color 3D printing corresponding to the color of the similar color model derived by the color comparison unit (230). It includes a 3D printer (300) that outputs a three-dimensional lithophane based on a file converted by a file conversion unit (210), and outputs the lithophane with a color and thickness set at a position of color corresponding to a unit image cut by an image cutting unit (220).

Description

Technology Field

[0001] The present invention relates to a color lithophane output system with AI color correction technology applied, and more specifically, to a color lithophane output system with AI color correction technology applied to a 3D printer to output with a thickness corresponding to the corrected color by using artificial intelligence for color lithophane to perform color correction through a comparison between the color expressed using CMY and white filaments and the original color. Background Technology

[0002] Lithophane is a technique that originated in 19th-century Europe, in which light and shadow appeared when light was shone on thinly carved porcelain, and it was primarily used as an artistic technique for depicting portraits or landscapes.

[0003] With the advent of 3D printers in the 21st century, interest in various lithophanes is increasing.

[0004] Lithophanes using a 3D printer were used to reproduce black and white photographs by converting brightness differences into thickness using a 3D printer and a single white filament.

[0005] Literature using lithophane technology utilizing a conventional 3D printer includes Korean Registered Utility Model No. 20-0481820 (Title of design: 3D printing app-linked phone case) and Korean Registered Patent No. 10-1843320 (Title of invention: Lithophane picture frame lighting kit).

[0006] All of the above literature describes a method of reproducing black and white photographs by using a 3D printer for lithophanes or by converting brightness differences into thickness using a 3D printer and a single white filament.

[0007] The lithophane using the above 3D printer has a limitation in that it has a limited ability to print color images. The problem to be solved

[0008] The present invention was devised to solve various problems according to the aforementioned prior art. The objective of the present invention is to provide a color lithophane printing system that applies AI color correction technology, which enables the implementation of a color lithophane using 3D printing, and enables color correction by utilizing artificial intelligence to compare the color expressed using CMY and white filaments with the original color, thereby allowing the 3D printer to print with a thickness corresponding to the corrected color. means of solving the problem

[0009] According to a color lithophane output system applying AI color correction technology of the present invention for achieving the above-mentioned purpose, the system comprises: an image scanning unit (100) for scanning an original image for a lithophane; a file conversion unit (210) for converting the original image scanned by the image scanning unit (100) into a file capable of 3D printing; an image cutting unit (220) for cutting the original image scanned by the image scanning unit (100) into unit images of a certain size; a color comparison unit (230) for deriving a color of a similar color model by comparing the color corresponding to the unit image cut by the image cutting unit (220) with the color of a color model using artificial intelligence; and a color storage unit (240) for storing location information of the color corresponding to the unit image cut by the image cutting unit (220) and color information of a similar color model derived by the color comparison unit (230). It includes: a lithophane setting unit (250) that sets the color and thickness of a color 3D printing corresponding to the color of a similar color model derived by the color comparison unit (230); and a 3D printer (300) that outputs a three-dimensional lithophane based on a file converted by the file conversion unit (210), and outputs the lithophane with the color and thickness set by the lithophane setting unit (250) at the position of the color corresponding to the unit image cut by the image cutting unit (220).

[0010] At this time, the color and thickness set by the lithophane setting unit (250) can be set as a relative color and thickness corresponding to the color of a similar color model derived by the color comparison unit (230) with respect to the entire color of the color model.

[0011] In addition, the lithophane setting unit (250) can set relative colors and thicknesses for all colors of similar color models derived by the color comparison unit (230) in the original image.

[0012] In addition, the above color model may be any one selected from RGB, CMY, CMYK, and CMYW. Effects of the invention

[0013] As described above, the color lithophane output system applying the AI ​​color correction technology of the present invention has the advantage of being able to output color images by enabling the implementation of color lithophane using 3D printing, unlike conventional methods that have the limitation of being able to output color images by reproducing black and white photos by converting brightness differences into thickness using a 3D printer and a single white filament.

[0014] In addition, by using artificial intelligence to perform color correction through comparison between the colors expressed using CMY and white filaments and the original colors, and by using a color 3D printer to print with the color and thickness corresponding to the corrected colors, there is an advantage of being able to print various three-dimensional color images. Brief explanation of the drawing

[0015] Figure 1 is a diagram showing the schematic structure of a color lithophane output system to which AI color correction technology according to the present invention is applied. FIG. 2 is a block diagram showing the structure of a color lithophane output system to which AI color correction technology according to the present invention is applied. FIG. 3 is a flowchart illustrating a color lithophane output method applying AI color correction technology according to the present invention. Specific details for implementing the invention

[0016] Hereinafter, a preferred embodiment of a color lithophane output system to which the AI ​​color correction technology of the present invention is applied will be described with reference to the attached FIGS. 1 to 3.

[0017] Figure 1 attached is a diagram showing the schematic structure of a color lithophane output system with AI color correction technology applied according to the present invention, and Figure 2 is a block diagram showing the structure of a color lithophane output system with AI color correction technology applied according to the present invention.

[0018] As can be seen from this, the color lithophane output system with AI color correction technology applied according to an embodiment of the present invention consists of an image scanning unit (100); a server (200); and a 3D printer (300).

[0019] The above image scanning unit (100) can use a scanner to scan the original image for the lithophane.

[0020] The above server (200) is equipped with a file conversion unit (210); an image cutting unit (220); a color comparison unit (230); a color storage unit (240); and a lithophane setting unit (250).

[0021] The above file conversion unit (210) plays the role of converting the original image scanned by the above image scanning unit (100) into a file that can be 3D printed.

[0022] At this time, it is preferable that the file converted by the file conversion unit (210) be converted into an STL (Standard Triangle Language) file format.

[0023] STL (Standard Triangle Language) files are known as a file format that represents the geometric surface structure of a 3D design by connecting triangle tessellations.

[0024] The above image cutting unit (220) serves to cut the original image scanned by the above image scanning unit (100) into unit images of a certain size.

[0025] At this time, the size of the unit image that the image cutting unit (220) cuts the original image scanned by the image scanning unit (100) into a unit image of a certain size is preferably a size corresponding to the nozzle diameter of the 3D printer.

[0026] The above color comparison unit (230) uses artificial intelligence to compare the color corresponding to the unit image cut by the above image cutting unit (220) with the color of the color model and derives a similar color model color.

[0027] At this time, the color model may be any one selected from RGB, CMY, CMYK, and CMYW.

[0028] The RGB color model is a method of expressing color using the three primary colors of light. It mixes colors using three types of light sources—red, green, and blue—and is called 'additive mixing' because the color becomes brighter as colors are mixed.

[0029] The CMY color model is a color model used in color printing, and CMY is an abbreviation for the three inks used in printing: Cyan, Magenta, and Yellow.

[0030] CMYK is a four-color model that adds black (Key) to CMY.

[0031] CMYW is a four-color model that adds white to CMY.

[0032] The color storage unit (240) stores location information of the color corresponding to the unit image cut by the image cutting unit (220) and color information of a similar color model derived by the color comparison unit (230).

[0033] The above lithophane setting unit (250) sets the color and thickness of the color 3D printing corresponding to the color of a similar color model derived by the color comparison unit (230).

[0034] At this time, the color and thickness set by the lithophane setting unit (250) can be set as relative colors and thicknesses corresponding to the colors of similar color models derived by the color comparison unit (230) for all colors of the color model. That is, the color and thickness set by the lithophane setting unit (250) means that all thicknesses for all colors defined in the color model are set, and thicknesses corresponding to them are set. For example, if the number of colors in the color model is 256, thicknesses for 256 are set, and lithophanes corresponding to the thickness of the corresponding colors are set.

[0035] In addition, the lithophane setting unit (250) can set relative colors and thicknesses for all colors of a similar color model derived by the color comparison unit (230) in the original image. That is, the color and thickness set by the lithophane setting unit (250) set the thickness for all colors of the color model used in the original image and set the thickness accordingly. For example, if 100 colors are used in the original color, the thickness for 100 colors is set, and the lithophane corresponding to the thickness of the corresponding color is set. In this case, compared to setting relative colors and thicknesses corresponding to the colors of a similar color model derived by the color comparison unit (230) for all colors of the aforementioned color model, the thickness is set only for the colors used in the original image and the thickness corresponding thereto is set, so although the accuracy of the color may decrease, the total thickness of the lithophane can be reduced and the output speed of the lithophane can be improved.

[0036] The above 3D printer (300) outputs a three-dimensional lithophane based on a file converted by the above file conversion unit (210), and outputs the lithophane with a color and thickness set by the above lithophane setting unit (250) at a position of color corresponding to a unit image cut by the above image cutting unit (220).

[0037] At this time, the 3D printer (300) prints a three-dimensional lithophane by stacking layers sequentially from the bottom at the position of the color corresponding to the unit image with the thickest thickness when printing a lithophane with a color and thickness set by the lithophane setting unit (250).

[0038] FIG. 3 is a flowchart illustrating a color lithophane output method applying AI color correction technology according to the present invention.

[0039] Using a color lithophane output system with AI color correction technology configured as above, a lithophane is output in the following manner.

[0040] First, the original image for the lithophane is scanned (S100).

[0041] Next, the scanned original image is converted into a file that can be 3D printed (S200).

[0042] The scanned original image is cut into unit images of a certain size (S300).

[0043] Next, the color corresponding to the cut unit image is compared with the color of the color model using artificial intelligence to derive a similar color model color (S400).

[0044] At this time, the color model may be any one selected from RGB, CMY, CMYK, and CMYW.

[0045] The position information of the color corresponding to the cut unit image and the color information of the similar color model derived in the color comparison step are stored (S500).

[0046] In addition, the color and thickness of the color 3D printing for the lithophane corresponding to the color of the derived similar color model are set (S600).

[0047] At this time, when setting the color and thickness of the color 3D printing for the lithophane, the color and thickness may be set to the relative color and thickness corresponding to the color of a similar color model derived by the color comparison unit (230) for the entire color of the color model, and may also be set to the relative color and thickness for all colors of a similar color model derived by the color comparison unit (230) in the original image.

[0048] Based on the converted file, a stereoscopic lithophane is output, and the lithophane is output with the set color and thickness at the color position corresponding to the cut unit image (S700).

[0049] Although an embodiment of the present invention has been described above, the concept of the present invention is not limited to the embodiments presented in this specification. Those skilled in the art who understand the concept of the present invention may easily propose other embodiments within the scope of the same concept by adding, changing, deleting, or adding components, and such embodiments shall also be considered to fall within the scope of the concept of the present invention. Explanation of the symbols

[0050] Image scanning unit (100) Server (200) File conversion unit (210) Video cutting section (220) Color comparison section (230) Color storage unit (240) Lithophane setting section (250) 3D printer (300)

Claims

Claim 1 An image scanning unit (100) for scanning an original image for a lithophane; a file conversion unit (210) for converting the original image scanned by the image scanning unit (100) into a file capable of 3D printing; an image cutting unit (220) for cutting the original image scanned by the image scanning unit (100) into unit images of a certain size; a color comparison unit (230) for using artificial intelligence to compare the color corresponding to the unit image cut by the image cutting unit (220) with the color of a color model to derive a color of a similar color model; a color storage unit (240) for storing location information of the color corresponding to the unit image cut by the image cutting unit (220) and color information of the similar color model derived by the color comparison unit (230); and a lithophane setting unit (250) for setting the color and thickness of a color 3D print corresponding to the color of the similar color model derived by the color comparison unit (230). A color lithophane output system with applied AI color correction technology, characterized by including: a 3D printer (300) that outputs a three-dimensional lithophane based on a file converted by the file conversion unit (210), and outputs the lithophane with a color and thickness set by the lithophane setting unit (250) at a position of color corresponding to a unit image cut by the image cutting unit (220). Claim 2 A color lithophane output system applying AI color correction technology, characterized in that, in claim 1, the color and thickness set by the lithophane setting unit (250) are set as relative colors and thicknesses corresponding to the colors of similar color models derived by the color comparison unit (230) with respect to the entire color of the color model. Claim 3 A color lithophane output system applying AI color correction technology, wherein, in claim 1, the lithophane setting unit (250) sets the relative color and thickness for all colors of similar color models derived by the color comparison unit (230) in the original image. Claim 4 A color lithophane output system applying AI color correction technology according to claim 1, characterized in that the color model is any one selected from RGB, CMY, CMYK, and CMYW.

Images