JP5471495B2 - Texture data processing apparatus, texture data processing method, program, embossed plate manufacturing apparatus, embossed plate manufacturing method, and sheet - Google Patents

Description

  The present invention relates to a texture data processing apparatus, a texture data processing method, a program, and seamlessly processed height data, which are image data that represents texture height information in terms of pixel values and that performs seamless processing of height data used in the manufacture of embossed plates. The present invention relates to an embossing plate manufacturing apparatus, an embossing plate manufacturing method, and a sheet manufactured thereby.

  Conventionally, some designs of embossed plates or sheets used for wallpaper of building materials have a surface shape close to a texture such as a woven fabric. The manufacturing process of such a sheet includes a process of taking a texture mold such as a woven fabric in order to manufacture an embossed plate having a textured surface shape. There are two types of mold making methods: a method of acquiring a mold from a target material using silicon or a scanner, and a method of generating textures of texture on the texture surface as data using a computer or the like.

  As a technique for generating an embossed plate or sheet having a texture surface shape such as a woven fabric using a computer or the like, for example, those shown in Patent Documents 1, 2, and 3 are known. In Patent Document 1, in order to create a sheet expressing a “plain weave” fabric in which warp yarns and weft yarns are alternately woven, parameters such as the size of the fabric region, the yarn width, the fiber width, and the yarn height are used. Is calculated, the height of each pixel in the fabric region is determined based on the relative coordinate value, and the fabric data is generated. Patent Document 2 creates a sheet expressing a “twill weave” fabric in which warp yarns and weft yarns appear in a ratio of approximately 2: 1 based on Patent Document 1 as a basic concept. Moreover, in patent document 3, in order to create the sheet | seat which expressed silk-like cloth, the polygonal cone shape which generates many irregular reflections of light is applied in a cloth area | region, and the height according to the coordinate value is determined. The fabric data is created.

JP 2001-58459 A JP 2001-179825 A JP 2001-113891 A

  However, the fabric data described in the above-mentioned Patent Documents 1 to 3 is not a model that is expressed precisely to the fiber level. Therefore, it was not so fine as to express the texture of the actual fabric, such as so-called “blemish” where the fibers protruded from the fabric surface and “unevenness”, which is the variation in the thickness of the twisted yarn.

  Also, when manufacturing an embossed plate using height data, which is image data that expresses texture height information as pixel values, automatically generated as described above, the embossed plate is arranged so that the height data is arranged vertically and horizontally. It is necessary to form height data according to the size of the image, and at that time, it is necessary to seamlessly process the joints of the textures (height data). If this is not done, a certain pattern will be formed at the joints of height data on the wallpaper or the like produced using the embossed plate, which may appear unnatural.

  In particular, in a texture that finely expresses the texture of an actual fabric such as fluff or unevenness as described above, it is necessary to perform seamless processing in consideration of these fine shapes of fluff and unevenness. There is a possibility that an unnatural image may be obtained only by processing such as smooth continuous processing.

  The present invention has been made in view of the above-described problems, and performs seamless processing of height data, which is image data representing texture height information in terms of pixel values, and the texture of the embossed plate using the height data is manufactured. It is an object of the present invention to provide a texture data processing device that makes a joint inconspicuous.

  In order to achieve the above-described object, the first invention is based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. A texture data processing device for performing seamless processing of height data used for manufacturing an embossed plate, which is image data representing texture height information in pixel values, and cutting out the height data in a predetermined range, Control point extracting means for extracting control points included in the texture data of the height data of the range, and a control point at one end along the predetermined direction of the predetermined range, and a control point at the other end Add to the control point and the added control point that are adjacent along the predetermined direction and outside the other end of the predetermined range. Control point adding means for generating height data based on the texture data generated in accordance with the height data generated outside the other end of the predetermined range according to the pixel value of the height data. Overwrite the height data of the corresponding position at one end of the range, and the height data of the corresponding position at the other end of the predetermined range with height data generated outside the one end of the predetermined range A texture data processing apparatus comprising: a texture overwriting unit for overwriting data.

  The height data overwriting means associates the pixel value of the height data generated outside the other end of the predetermined range with the pixel value of the height data at one end of the predetermined range. The height of the texture indicated by the pixel value of the height data generated outside the other end portion of the predetermined range is compared with the position, and the pixel value of the height data at one end portion of the predetermined range indicates When the height of the texture is higher, the pixel value at the position is the pixel value of the height data generated outside the other end of the predetermined range, and is generated outside the one end of the predetermined range. The pixel value of the height data and the pixel value of the height data at the other end of the predetermined range are compared at corresponding positions, and the height data generated outside one end of the predetermined range Pixel value indicates When the height of the texture is higher than the height of the texture indicated by the pixel value of the height data at the other end of the predetermined range, the pixel value at the position is generated outside one end of the predetermined range. It is desirable to set the pixel value of the height data thus obtained.

  In order to achieve the above-mentioned object, the second invention is based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. A texture data processing device for performing seamless processing of height data used for manufacturing an embossed plate, which is image data representing texture height information in pixel values, and cutting out the height data in a predetermined range, Control point extracting means for extracting control points included in the texture data of the height data of the range, and a control point at one end along the predetermined direction of the predetermined range, and a control point at the other end Add to the control point and the added control point that are adjacent along the predetermined direction and outside the other end of the predetermined range. Control point adding means for generating texture data, and overwriting the texture data generated outside the other end of the predetermined range at a corresponding position at one end of the predetermined range, Texture overwriting means for overwriting the texture data generated outside one end of the range at a corresponding position at the other end of the predetermined range, and generating height data based on the texture data. This is a texture data processing apparatus.

  Further, the texture overwriting means according to the first or second aspect of the invention provides the height data or the texture data generated outside the other end of the predetermined range at one end of the predetermined range. When overwriting, height data or texture data that is overwritten at a position shifted by a predetermined amount from one end of the predetermined range along the predetermined direction, and is generated outside one end of the predetermined range May be overwritten at a position shifted by a predetermined amount from the other end portion in the predetermined direction of the predetermined range when the other end portion of the predetermined range is overwritten.

The texture data includes a portion having a periodicity in the height position along the predetermined direction, and the predetermined range includes the height at one end and the other end along the predetermined direction. The position phase can be matched.
Furthermore, the texture data is data of a woven fabric having warp and weft, and the predetermined direction can be a direction along the warp and a direction along the weft.

  In addition, the third aspect of the invention relates to texture height information based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on the texture data generation information. Is a texture data processing method using a texture data processing apparatus that performs seamless processing of height data used in the manufacture of an embossed plate, the image data representing pixel values, and cutting the height data in a predetermined range, A control point extracting step for extracting control points included in the texture data of the height data in the range, and a control point at one end along the predetermined direction of the predetermined range, and a control point at the other end Is added along the predetermined direction and outside the other end of the predetermined range. A control point adding step for generating height data based on the texture data generated by the controlled points, and height data generated outside the other end of the predetermined range in accordance with the pixel value of the height data The height data at the corresponding position at one end of the predetermined range is overwritten with, and the height data generated outside one end of the predetermined range corresponds to the other end of the predetermined range. And a texture overwriting step of overwriting height data at a position to be textured.

  According to a fourth aspect of the present invention, there is provided texture height information based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on the texture data generation information. Is a texture data processing method using a texture data processing apparatus that performs seamless processing of height data used in the manufacture of an embossed plate, the image data representing pixel values, and cutting the height data in a predetermined range, A control point extracting step for extracting control points included in the texture data of the height data in the range, and a control point at one end along the predetermined direction of the predetermined range, and a control point at the other end Is added along the predetermined direction and outside the other end of the predetermined range. A control point adding step for generating texture data with the controlled points, and overwriting the texture data generated outside the other end of the predetermined range at a corresponding position at one end of the predetermined range A texture overwriting step of overwriting the texture data generated outside one end of the predetermined range at a corresponding position at the other end of the predetermined range, and generating height data based on the texture data; And a texture data processing method characterized by comprising:

  The fifth invention is a program for causing a computer to function as the texture data processing apparatus according to the first invention or the second invention.

  Further, the sixth aspect of the invention relates to texture height information based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on the texture data generation information. Is an embossed plate manufacturing apparatus that performs height processing of height data, which is image data representing pixel values, and manufactures an embossed plate using the seamlessly processed height data, and cuts out the height data in a predetermined range, Control point extracting means for extracting control points included in the texture data of the height data of the predetermined range, and a control point at one end along the predetermined direction of the predetermined range, The control point is added along the predetermined direction and outside the other end of the predetermined range, and the control point and the added control point are added. Control point adding means for generating height data based on the texture data generated by the points, and the predetermined value with the height data generated outside the other end of the predetermined range according to the pixel value of the height data The height data at the corresponding position at one end of the predetermined range is overwritten, and the height data generated outside the one end of the predetermined range is the position of the corresponding position at the other end of the predetermined range. Texture overwriting means for overwriting height data, height data output means for outputting a plurality of height data generated by the texture overwriting means, and a surface shape of the texture based on the height data output by the height data output means And an embossed plate manufacturing means for manufacturing an embossed plate formed on an embossed plate cylinder. It is an embossing plate manufacturing apparatus for.

  In addition, the seventh aspect of the invention relates to texture height information based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on the texture data generation information. Is an embossed plate manufacturing apparatus that performs height processing of height data, which is image data representing pixel values, and manufactures an embossed plate using the seamlessly processed height data, and cuts out the height data in a predetermined range, Control point extracting means for extracting control points included in the texture data of the height data of the predetermined range, and a control point at one end along the predetermined direction of the predetermined range, The control point is added along the predetermined direction and outside the other end of the predetermined range, and the control point and the added control point are added. Control point addition means for generating texture data by points, and overwriting the texture data generated outside the other end of the predetermined range at a corresponding position at one end of the predetermined range, Texture overwriting means for overwriting the texture data generated outside one end of the predetermined range at a corresponding position at the other end of the predetermined range, and generating height data based on the texture data; and the texture A height data output means for outputting a plurality of height data generated by the overwriting means, and an embossed plate in which the surface shape of the texture is formed on the embossed plate cylinder is manufactured based on the height data output by the height data output means. And an embossed plate manufacturing means.

  In the embossed plate manufacturing apparatus according to the sixth or seventh invention, the embossed plate manufacturing means engraves the surface shape of the texture using a cutting blade or a laser beam with respect to the embossed plate cylinder. It can be.

  Further, in the embossed plate manufacturing apparatus according to the sixth or seventh invention, the embossed plate manufacturing means is provided for the embossed plate cylinder coated with a resist layer or a photomask used for exposure processing to the embossed plate cylinder. It is also desirable to include a pattern exposure unit that forms an exposure pattern based on the height data, and a corrosive device that performs a corrosive treatment on the embossed plate cylinder on which the exposure pattern is formed, or the photomask.

  In addition, according to an eighth aspect of the present invention, texture height information based on texture data including control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on the texture data generation information. Is an embossed plate manufacturing method using an embossed plate manufacturing apparatus that performs seamless processing of height data, which is image data representing pixel values, and manufactures an embossed plate using the seamlessly processed height data, the height data A control point extracting step for extracting a control point included in the texture data of the height data in the predetermined range, and a control point at one end of the predetermined range along the predetermined direction Is added along the predetermined direction of the control point at the other end and outside the other end of the predetermined range, A control point adding step for generating height data based on the control point and texture data generated by the added control point, and an outside of the other end of the predetermined range according to the pixel value of the height data. The height data generated at the end of the predetermined range is overwritten with the corresponding height data at one end of the predetermined range, and the height data generated outside the one end of the predetermined range A texture overwriting step of overwriting the height data at the corresponding position at the other end, a height data output step of outputting a plurality of height data generated by the texture overwriting means, and a height output by the height data output means Based on the data, an embossed plate with the textured surface shape formed on the embossed plate cylinder is manufactured. A embossing plate manufacturing method characterized by comprising the Nbosu plate manufacturing step.

  The ninth aspect of the invention relates to texture height information based on texture data that includes control points that are successively arranged in a predetermined direction by generating texture data between adjacent control points based on the texture data generation information. Is an embossed plate manufacturing method using an embossed plate manufacturing apparatus that performs seamless processing of height data, which is image data representing pixel values, and manufactures an embossed plate using the seamlessly processed height data, the height data A control point extracting step for extracting a control point included in the texture data of the height data in the predetermined range, and a control point at one end of the predetermined range along the predetermined direction Is added along the predetermined direction of the control point at the other end and outside the other end of the predetermined range, A control point adding step for generating texture data based on the control point and the added control point, and texture data generated outside the other end of the predetermined range is transferred to one end of the predetermined range. And overwriting the corresponding position at the other end of the predetermined range, overwriting the corresponding position at the other end of the predetermined range, the height data by the texture data is overwritten A texture overwriting step, a height data output step for outputting a plurality of height data generated by the texture overwriting means, and an embossed version of the texture surface shape based on the height data output by the height data output means. An embossed plate manufacturing step for manufacturing an embossed plate formed on the cylinder; A embossing plate manufacturing method characterized by.

  The tenth invention is a wallpaper sheet obtained by processing the sheet surface shape using the embossed plate manufactured by the embossed plate manufacturing apparatus of the sixth or seventh invention.

  With the above configuration, the height data that reflects the texture data representing the fine shape of the texture is seamlessly processed, so that precise seamless processing can be performed, and the texture data contains irregular parts such as fiber fluff. Even if it has, seamless processing with high accuracy can be performed. In addition, since one unit of height data having smooth edges at the end when a plurality are arranged is processed, the data to be handled is small, and the burden on calculation processing can be reduced. There is an advantage that the burden of calculation processing can be suppressed. Also, by shifting the overwrite position by a predetermined amount when the texture is overwritten, the seamlessly processed height data can be shifted by a predetermined amount to make the joints look more natural. In addition, when texture data such as woven fabric data composed of warp and weft has periodicity at a height position along a predetermined direction, height data is determined by determining a predetermined range in consideration of the periodicity. Smooth and continuous. Furthermore, by using the height data arranged seamlessly and arranged in this way for the production of the embossed plate, the fine shape of the texture is expressed as an embossed plate, and the surface shape (height data) of the arranged texture is smooth. A continuous material can be produced. A sheet produced with such an embossed plate expresses a fine shape, and the joints do not look unnatural, and has excellent design.

  According to the present invention, a texture data processing device that performs seamless processing of height data, which is image data representing texture height information as pixel values, and makes texture joints inconspicuous when manufacturing an embossed plate using height data. Etc. can be provided.

The block diagram which shows the hardware constitutions of the texture data processing apparatus 1 Functional block diagram of the texture data processing apparatus 1 Flow chart showing the flow of texture data processing Flow chart showing the flow of texture data generation Diagram explaining fiber data The figure explaining the thread | yarn data of the cylinder model 34 The figure explaining the truncated cone model 36 Example of 3D image of yarn data The figure explaining the structure | tissue of a textile fabric. (A) is plain weave, (B) is twill. Diagram explaining deformation of yarn An example of a 3D image of a thread deformed based on a Bezier curve Example of 3D image of generated fabric data Example of 3D image of fabric data expressing "unevenness" of yarn thickness Example of 3D image of fabric data with “Keba” added to yarn data Example of generated height data image Example of generated height data image Flow chart showing the flow of seamless processing Diagram explaining control point extraction A figure explaining texture data generation by control points Diagram explaining adding control points and overwriting height data Figure explaining height data after overwriting Diagram explaining continuous height data Diagram explaining overwriting of height data and multiple arrangements An example of multiple height data images Diagram explaining overwriting of height data and multiple arrangements The block diagram which shows an example of the hardware constitutions of the textile fabric tone embossing plate manufacturing apparatus 9 Overall configuration diagram of embossed plate manufacturing apparatus 9A Overall configuration diagram of embossed plate manufacturing apparatus 9B The figure explaining the photomask manufacturing apparatus 9C used for manufacture of an embossed plate

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[First embodiment]
First, the texture data processing apparatus 1 according to the present invention will be described.
FIG. 1 shows a hardware configuration of the texture data processing apparatus 1 of the present embodiment.
As shown in FIG. 1, the texture data processing apparatus 1 includes, for example, a control unit 10, a storage unit 11, a media input / output unit 12, a peripheral device I / F unit 13, a communication unit 14, an input unit 15, a display unit 16, A printing unit 17 and the like are connected via a bus 18.

The control unit 10 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
The CPU calls and executes a program stored in the storage unit 11, ROM, recording medium, etc. to a work memory area on the RAM, and drives and controls each unit connected via the bus 18. The CPU of the control unit 10 executes texture data processing (see FIG. 3) described later.

  The ROM permanently holds a computer boot program, a program such as BIOS, data, and the like. The RAM temporarily holds the loaded program and data, and includes a work area used by the control unit 10 for performing various processes.

  The storage unit 11 is an HDD (hard disk drive), and stores a program executed by the control unit 10, data necessary for program execution, an OS (operating system), and the like. These program codes are read by the control unit 10 as necessary, transferred to the RAM, and read and executed by the CPU.

  The media input / output unit 12 (drive device) is a media input / output device such as a floppy (registered trademark) disk drive, PD drive, CD drive, DVD drive, or MO drive, and performs data input / output.

The communication unit 14 includes a communication control device, a communication port, and the like, is a communication interface that mediates communication with the network, and performs communication control.
The input unit 15 is an input device such as a keyboard, a pointing device such as a mouse, or a numeric keypad, and outputs input data to the control unit 10.

The display unit 16 includes a display device such as a liquid crystal panel or a CRT monitor, and a logic circuit (video adapter or the like) for executing display processing in cooperation with the display device, and is input under the control of the control unit 10. Display information is displayed on a display device.
The printing unit 17 is a printer, and performs printing processing of an image such as generated height data.

  Next, the function of the texture data processing apparatus 1 of the present invention will be described with reference to FIG. In the present embodiment, an example of data on a fabric having warp and weft as texture data will be described. However, texture data is not limited to this.

  As shown in FIG. 2, the control unit 10 of the texture data processing apparatus 1 has a texture data generation unit 19, a seamless processing unit 20, and an output unit 30 as functions for generating height data of texture data (textile data). Have The texture data generation unit 19 includes a parameter input unit 21, a fiber shape generation unit 22, a yarn shape generation unit 23, a fabric structure generation unit 24, a fabric shape generation unit 25, and a gradation image generation unit 26. The seamless processing unit 20 includes a control point extraction unit 27, a control point addition unit 28, and a texture overwrite unit 29.

  That is, the control unit 10 controls each unit of the texture data processing apparatus 1 to generate height data that represents texture height information by pixel values, and inputs parameters, fiber shape generation, yarn shape generation, fabric In order to perform each process of fabric generation, fabric shape generation, gradation image generation, and seamless processing of the generated height data, each part of the texture data processing device 1 is controlled to extract control points and add control points. Then, each process of texture overwriting is performed, and the generated height data is output. Details of these processes will be described later.

Next, the operation of the texture data processing apparatus 1 will be described.
As shown in the flowchart of FIG. 3, the control unit 10 of the texture data processing device 1 performs each step of the texture data generation step (step S1), the height data seamless processing step (step S2), and the output step (step S3). Is executed to generate height data of the texture data, perform seamless processing of the height data, and output a plurality of height data after the seamless processing.

  First, the process in texture data generation step S1 will be described. As shown in FIG. 4, the texture data generation step includes a parameter input step (step S11), a fiber shape generation step (step S12), a yarn shape generation step (step S13), and a fabric structure generation step (step S14). A fabric shape generation step (step S15) and a gradation image generation step (step S16) are included to generate height data, which is data representing texture height information.

<Parameter Input Step (Step S11 in FIG. 4)>
In the texture data processing apparatus 1 according to the present embodiment, the control unit 10 firstly includes a fiber generation step S12, a yarn shape generation step S13, a fabric structure generation step S14, a fabric shape generation step S15, and a gradation image, which will be described later. Input of parameters used in the generation step S16 is accepted.

The parameters used in the fiber generation step S12 include the length of the fiber, the width of fluctuation of the fiber, the number of segments of the fiber, and the like.
The parameters used in the yarn shape generation step S13 include the number of fibers per unit length of the yarn, the twist of the fiber (rotation angle), the radius of the yarn, a function that defines a model that represents the shape of the yarn, and the like. It is done.
Examples of the parameters used in the fabric structure generation step S14 include a binary matrix that defines the warp and weft yarn front and back arrangement information in one structure of the fabric.
Examples of the parameters used in the woven fabric shape generation step S15 include the spacing between the warp and weft yarns, values for adjusting the “off” and “unevenness” of the fiber, and the like.
Examples of the parameters used in the gradation image generation step S16 include the number of gradations.

  When receiving input of various parameters, the control unit 10 may generate an input screen for inputting necessary parameters and display the input screen on the display unit 16. In addition, the control unit 10 holds the parameters input from the input unit 15 in the RAM. The input parameters are read at each step and used to generate fiber data, yarn data, or fabric data.

<Fiber shape generation step (step S12 in FIG. 4)>
Next, the control unit 10 defines the shape of the fiber.
The control unit 10 sets a line of an arbitrary length or a set of an arbitrary number of point groups in the three-dimensional space based on the input parameter “fiber length”. Here, the line includes a straight line, a curve, or a set of curves. In the following description, in order to define a fiber, a line segment having an arbitrary length is set in the three-dimensional space as fiber data. Then, based on the parameter “number of segments”, the line segment (or a set of lines or point clouds if an arbitrary length line or a set of point clouds is set) is divided into each node (delimited The fiber data is generated by randomly locating one element of the line segment) within the width of the parameter “fiber fluctuation”.

Specifically, as shown in FIG. 5A, when the number of segments including both ends of the fiber 31 is N _n , the coordinates of the start point of the line segment are n ₀ , and the coordinates of the end point are n _Nn−1 , i Let n _i be the coordinates of the start point of the th node. These coordinates n ₀ , n _Nn−1 , and n _i are represented by a three-dimensional vector.
The coordinates n _i of the starting point of the i-th node are the positions shown in the following equation (1).

Here, Zn is a three-dimensional vector set to give fluctuation to each node. If each element of Zn is a random number in the section [J _gMin , J _gMax ], a fiber having random fluctuations can be expressed.

  Further, a desired surface shape as shown in FIG. 5B may be added to the defined fiber data. The shape of the surface of the fiber is defined as the logical sum of Equation (2), which is a function of the sphere surface, centered on the sample point s on the defined fiber data. Alternatively, it is defined by a polygon.

Here, x is three-dimensional vector, r _n is the distance from the sample point s to the surface.

<Yarn Shape Generation Step (Step S13 in FIG. 4)>
Next, the control unit 10 defines the shape of the yarn. Yarn is expressed as a bundle of fibers and twisted.

In order to express the shape of the yarn, a predetermined number of fiber data is arranged in a predetermined closed space. Such a yarn model is referred to as a closed space model. The closed space model is defined by a function that represents the closed space.
As an example of the closed space model, for example, a cylindrical model 34 having a predetermined unit length and a radius r corresponding to the parameter “thread radius” as shown in FIG. 6 is used.
First, the control unit 10 arranges the fiber data 31, 31, 31,... In the cylinder model 34 substantially in parallel by the parameter “number of fibers” (FIG. 6A).
Each fiber data 31, 31, 31, ... shall be arrange | positioned substantially parallel with respect to the direction (z direction in a figure) which connects the upper surface and lower surface of the cylinder model 34. As shown in FIG.

Specifically, the control unit 10 performs a process such as parallel movement on the fiber data 31 generated in the fiber generation step S <b> 12, and randomly arranges a plurality of fibers 31 in the cylindrical model 34.
The movement vector T _t = (T _tx , T _ty , T _tz ) of each fiber is a value of the expression (3).

Here, l is the length of the cylindrical model 34, and Z ₀ , Z ₁ , Z ₂ , Z ₃ , and Z ₄ are values of the random number sequence in the section [0, 1], and are set for each fiber.

  Further, as shown in FIG. 7, the thread may be formed by using a truncated cone model 36 in which a plurality of truncated cones having different radii on the upper surface and the lower surface are connected.

When the truncated cone model 36 is used, r in the expression (3) is replaced with a function r (a) that returns the radius of the truncated cone corresponding to the value of the long axis (z-axis) of the yarn.
A function r (a) that returns the radius of the truncated cone is defined by equation (4).

Here, a is the value of the interval [0, 1], _{r u} and _{r d} is a frustoconical upper surface and a lower surface of the radius, respectively.

  Further, the control unit 10 rotates each fiber data included in the yarn by the parameter “fiber twist (rotation angle θ)” to express the twist (FIGS. 6B and 6C).

  The control unit 10 fixes each node of the fiber data 31 with the center axis of the yarn (the axis connecting the center of the upper surface and the lower surface of the cylindrical model 34 or the conical model 36) as the axis of rotation, while fixing one end point of the fiber data. Each node end point is sequentially rotated by θ degrees.

FIG. 6C is a vertical cross section (xy) at an arbitrary position of the long axis of the yarn 35. Black dots in FIG. 6C mean fiber data included in the yarn 35.
When rotating the fiber data, each node end point is sequentially moved in the tangential direction of the circle by θ degrees, and the node length is corrected. In a general rotation process, the amount of movement increases with increasing distance from the axis of rotation. Therefore, the fibers outside the yarn are expressed densely. In order to avoid this, the position after movement is corrected so that the length of each node is maintained at the original length.

That is, as shown in Expression (5), the coordinates n _i of the i-th node end point are moved to the position of n _i ″.

Here, i is an interval [0, N _n ]. N _n is an upper limit value representing the number of nodes.
By this rotation processing, the yarn which is a bundle of fibers is twisted, and yarn data as shown in FIG. 8 is generated. FIG. 8 is a diagram illustrating a 3D image of a yarn that has been subjected to twisting. The long axis of the yarn is the rotation axis (z axis). As shown in FIG. 8, a state in which a plurality of fibers of the yarn are twisted is expressed.

<Texture generation step (step S14 in FIG. 4)>
Next, the control unit 10 defines the texture of the fabric.
Since the woven fabric is composed of warp yarns and weft yarns, one of warp yarns and weft yarns appears on the front surface and the other appears on the back surface at the point where the warp yarns and weft yarns intersect (hereinafter referred to as texture points).

  FIG. 9A shows a structure as a basic unit of plain weave, and FIG. 9B shows a structure as a basic unit of twill. In the figure, the blocks shown in black are warp threads, and the blocks shown in white are weft threads.

In the case of a complete organization that is a repetition of a defined organization, the front-back relationship of all the organizations is defined by a matrix A of one unit of organization. Hereinafter, the matrix A indicating the front / back relationship of one unit of organization is referred to as front / back arrangement information.
For example, the plain weave front / back arrangement information is defined by a 2 × 2 matrix as shown in Equation (6).

On the other hand, when the number of warp yarns is M and the number of weft yarns is N, the number of texture points is M · N points.
Here, when the position of the texture point is expressed by the warp yarn index j and the weft yarn index k, the warp yarn index j and the surplus of the number of rows m of the matrix A, or the surplus of the weft yarn index k and the number of columns n are referred to. Thus, it is determined which element of the matrix A corresponds to the tissue point of interest, and the front and back arrangement information of each yarn is determined.
Here, when the element of the matrix A is 1, the warp is defined as a table. Furthermore, the major axis of the warp is arranged in the z direction, the major axis of the weft is arranged in the x direction, and the front and back are arranged in the y direction.

From the above, the warp yarn coordinates g = (g _x , g _y , g _z ) at each texture point are defined by equation (7).

_{Here, I warp} has a spacing of the _{warp, I weft,} the distance of the weft, r is the radius of the warp.

  For the weft, the coordinates at the tissue point can be calculated similarly by setting the matrix A to -A.

  In the present embodiment, the control unit 10 repeats the process of step S14 for the number of tissue points M · N times.

<Fabric Shape Generation Step (Step S15 in FIG. 4)>
Next, the control unit 10 performs a process of appropriately translating the nodes constituting the fibers so that the warp and weft fibers smoothly interpolate between adjacent tissue points.
FIG. 10 is a diagram for explaining the deformation of the yarn 56. In FIG. 10, the left-right direction of the paper surface is the z direction, the vertical direction of the paper surface is the y direction, and the vertical direction of the paper surface is the x direction.
The fibers in the yarn 56 smoothly interpolate from the z position z _k where the yarn 46 and the yarn 56 intersect to the z position z _{k + 1} where the yarn 47 and the yarn 56 intersect.

Here, a function f (y _a , y _b , t) that smoothly interpolates two values (coordinates of adjacent tissue points) is used.
y _a and y _b are the y-axis coordinates of the target tissue point, and t is a parameter that indicates the position between adjacent tissue points and takes the value [0, 1].

In order to deform the yarn, f ′ (y _a , y _b , t) shown in the following formula (8) is added to the y coordinate of the node constituting each fiber.

The parameter t described above has the same value as Z _{0 in} the equation (3) at the time of yarn generation.
Here, as an example of the interpolation function f (y _a , y _b , t), a three-dimensional Bezier curve represented by Expression (9) is used.

Note that equation (10) may be used instead of equation (9). The parameters y _c and y _{d in} Expression (10) are parameters that depend on the weaving method of the fabric, and can be specified by the user.
Further, instead of the Bezier curve, another interpolation function may be used.

FIG. 11 shows a 3D image of the deformed yarn.
FIG. 12 shows a 3D image of a plain weave fabric using six warp yarns and six weft yarns.
As shown in FIGS. 11 and 12, the yarn data or the fabric data generated by the texture data processing apparatus 1 shows that the texture of the fibers contained in the yarn is finely expressed.

  At this stage, for the generated fabric data, “unevenness” of the thickness of the yarn and “off” indicating that the fibers contained on the surface or inside of the yarn are frayed may be adjusted.

In order to express the “unevenness” of the yarn, the control unit 10 makes the radius of the upper surface of the truncated cone model 36 defining the yarn equal to the radius of the lower surface in contact with the upper surface, Shake the radius randomly. That is, the radius of the upper or lower surface of the frustum of the yarn is given as a random number in the section [J _rMin , J _rMax ].
FIG. 13 shows a 3D image of the fabric when “unevenness” is added to the yarn.

Further, in order to express “Keba”, the control unit 10 first randomly selects a desired number N _f of fibers to be “Keba” from the fibers bundled as a thread. Here, N _f is a random value in the interval [N _fMin , N _fMax ]. N _fMin is not less than 0, and N _fMax is not more than the number N _{t of} fibers filled in the truncated cone model 36 of the yarn.
The control unit 10 deforms the selected fiber in a straight line in order to jump out to the surface of the yarn, and adds noise to each node. The position of the node n _i of the fiber that becomes the mark moves to n _i ′ in the equation (11).

At this time, Z _f1 is a parameter that defines the jump-out distance of the yarn, and is a random number in the section [J _f1Min , J _f1Max ]. Z _f2 is a parameter that defines the fluctuation of the fiber, and each element is a three-dimensional vector of random numbers in the section [J _f2Min , J _f2Max ].

  FIG. 14 shows a 3D image of the woven fabric to which the yarn “Keba” is added.

<Gradation Image Generation Step (Step S16 in FIG. 4)>
Next, the texture data processing apparatus 1 performs a process of converting the three-dimensional shape of the generated fabric data into a height field. The control unit 10 selects the highest part on the surface of the fiber from the front side of the generated three-dimensional shape of the fabric data, and represents the texture height information as, for example, a 256 gradation image (grayscale or the like), Height data projected onto a two-dimensional plane is generated.

  In the process of converting to a height field, the control unit 10 generates a curved surface using an attenuation function depending on a distance after rasterizing the fiber segment of the fabric data. Alternatively, the control unit 10 may perform modeling using an implicit function centered on a line segment to generate a curved surface, and then rasterize to generate height data.

  As an example of the texture data generated by the texture data processing apparatus 1 according to the embodiment of the present invention, the parameters shown in Table 1 are set, and height data of the generated fabric data is shown.

FIGS. 15 and 16 show images in which height data generated using such parameters is expressed in 256 gray scales.
As shown in FIG. 15 and FIG. 16, the fabric data expresses fine shapes such as “unevenness” of yarn twist and “keb” of fibers, and expresses the actual texture of fabric sufficiently finely. Yes.

  As described above, the control unit 10 of the texture data processing apparatus 1 sets a line of an arbitrary length or an arbitrary number of point groups in the three-dimensional space in the texture data generation step S1 of FIG. The fiber data is defined by randomly swaying the end points of each node that divides the set of point clouds into an arbitrary number of segments within a predetermined fluctuation width, and a plurality of fiber data are enclosed in a closed space such as a cylinder or a truncated cone. Yarn data expressed by rotating the respective line segment end points of the arranged fiber data by a predetermined angle is generated substantially parallel to the model. The control unit 10 arranges the generated plurality of yarn data at predetermined intervals as the warp yarn and the weft yarn of the fabric, and deforms the shape of the warp yarn and the weft yarn based on the front and back arrangement of each yarn data, Generate data. Furthermore, the control unit 10 converts the generated fabric shape data into height field data in a two-dimensional coordinate space, and outputs the height data.

  Therefore, it is possible to express the woven fabric to a fine level like a fiber, and the realism is improved.

  Further, in the texture data processing device 1, as parameters for the fiber data, the length of the fiber, the fluctuation width of the fiber, the number of nodes constituting the fiber, etc. can be input as desired by the user, or as parameters for the yarn data In order to make it possible to input the number of fiber data, rotation angle, yarn radius, function that defines the closed space model of the yarn, etc. at the user's desired values, the shape of the fiber, the shape of the yarn, the density of the fiber, the fabric It is possible to intuitively manipulate the yarn interval, fiber fluff, yarn unevenness, etc., and obtain fabric data with various textures.

In addition, when generating yarn data, the length of the original fiber is maintained when the fiber is rotated to express the twist of the yarn. The natural yarn data as if the actual fiber is twisted can be generated.
Moreover, since the output size of height data can be arbitrarily changed, the practicality is improved.

  In the above-described embodiment, the plain weave has been described, but a twill weave may be used. In this case, the following formula (12) is used instead of the formula (6) indicating the front and back arrangement information of the plain weave fabric structure.

  In the above steps, the intersection (texture point) of the warp and weft is set as a control point, and texture generation information for generating a texture as described above is linked to each control point (information indicating). Are stored in a RAM or the like. These pieces of information are used in the seamless process in the subsequent seamless process step S2.

  That is, the control point is a thread path in the three-dimensional space and has position information on the X, Y, and Z axes. The value on the Y axis refers to the height through which the yarn passes. In addition, for yarn generation, information such as the thickness of the yarn, the number of fibers existing between control points, the twist angle, the number of fibers that become fluffed, the direction that appears in case of fluffing, and the distance to exit Have. Furthermore, in order to generate the fibers constituting the yarn, information such as the number of fibers, the number of fibers, and the thickness of the fibers is included. Each parameter depends on an interpolation function (linear or non-linear) for interpolating between control points, and fabric data (texture data) is formed between control points in a three-dimensional space using a shape generation function. The above information is an example of texture generation information.

  Next, processing in the seamless processing step (step S2 in FIG. 3) will be described. In step S2, the control unit 10 of the texture data generation apparatus 1 performs seamless processing on the height data generated in step S1. As height data used for manufacturing the embossed plate, automatically generated height data is cut out in a certain range and arranged, but the joints of these images (height data) are not continuous as they are. Therefore, the seamless processing in step S2 is required so that these images are seamlessly continuous.

  As shown in FIG. 17, the seamless processing step (step S2 in FIG. 3) includes a control point extracting step (step S71), a control point adding step (step S72), and a texture overwriting step (step S73).

<Control Point Extraction Step S71 (Step S71 in FIG. 17)>
First, the control unit 10 cuts out a predetermined range of the height data generated in step S1, and extracts a plurality of control points included in the texture data of the height data.

  In the case of the weft thread 60, as shown in FIG. 18A, the weft thread 60 (60-1 to 60-4) and the warp thread 59 (59-1) are arranged so that the control point 63 continues along the direction of the weft thread 60. To 59-4). FIG. 18A shows the case of plain weave. In the case of plain weave, for the weft yarn 60, the control point 63 having a Y coordinate (height) lower than that of the warp yarn 59 and the control point 63 having a Y coordinate higher than that of the warp yarn 59 are alternately continued along the direction of the weft yarn 60. In the present embodiment, the seamless process is described mainly for the case of the weft thread 60, but the same process is performed for the warp thread. The control points related to the warp yarn 59 are arranged at the intersection of the warp yarn 59 and the weft yarn 60 so as to be continuous along the direction of the warp yarn 59.

  As shown in FIG. 18A, the control unit 10 cuts the height data in a predetermined cutout range 65 and extracts control points 63 that are continuous along the weft 60 in the cutout range 65.

  The cut-out range 65 is, for example, as shown in FIG. 18 (B) shown for the weft thread 60-1, with the high and low phases of the Y coordinate of the weft thread 60 (high and low are periodically repeated) at both ends along the direction of the weft thread 60. Set to match. That is, it cuts out so that the fluctuation of the Y coordinate (height) along the direction of the weft 60 in the cutout range 65 exists in n cycles (n is a natural number). In FIG. 18B, n = 2. Such processing is performed when the phase of the end portions is not aligned, and seamlessly processed height data, which will be described later, looks continuous and unnatural at high or low values at the joint position. This is because there is a possibility. The cutout range 65 is selected in advance, and the control unit 10 can perform the above processing based on this selection range. Further, it may be determined by the operator via the input unit 15 at the time of processing. In FIG. 18 (B), 62 is a fiber mark.

  As shown in FIG. 18B, when the cutting range 65 along the weft thread 60-1 is viewed, control points 63-1 to 63-4 that are continuous along the direction of the weft thread 60-1 are extracted. The control point 63-1 is located at the left end of the cutout range 65, and the control point 63-4 is located at the right end of the cutout range 65.

  As shown in FIG. 19, the control point 63 has the above-mentioned information such as position information and thread thickness, and is adjacent to the control point 63 in a predetermined direction (the direction of the weft thread 60 or the direction of the warp thread 59). Based on this information and texture generation information such as an interpolation function for interpolating between the control points 63, the matching pair interpolates and generates texture data 66 such as the weft 60 and the knot 62 between the control points using the shape generation function. .

  FIG. 20 shows a state where the control points 63-1 to 63-4 are extracted. FIG. 20 is a view of the control points 63-1 to 63-4 along the direction of the weft thread 60-1 in FIG. In the figure, the vertical axis corresponds to the Y axis and indicates the height direction of the texture data 66. The horizontal axis corresponds to the X axis and indicates the direction along the weft 60-1.

  When the control points 63-1 to 63-4 are extracted, texture data 66 is generated between them as shown in FIG. That is, texture data 66 such as the weft 60 and the knot 62 is interpolated and generated between the control points. Note that at the left and right ends of the cutout range 65 (between the control point 63-1 and the left end of the cutout range 65, and between the control point 63-4 and the right end of the cutout range 65), Since there is no control point on the right side of the control point 63-4, the texture data 66 (the weft 60) is not interpolated.

  In FIG. 20, 67 is height data indicating the maximum value of the Y value (height) of the texture data 66, and the maximum value is represented by a pixel value of 0 to 255, either automatically or input. It can be generated based on the texture data 66 by the operation of the operator via the unit 15.

<Control Point Adding Step (Step S22 in FIG. 17)>
Subsequently, as illustrated in FIG. 20B, the control unit 10 moves the control point 63-1 at the left end of the extracted control point 63 along the direction of the weft 60-1 outside the right end portion of the cutout range 65. Is added (copied) next to the control point 63-4 to obtain a control point 63-1 ′. The texture generation information possessed by the control point 63-1 ′ is the same as that of the control point 63-1 except for position information in the X-axis direction (the direction of the weft 60-1).

  Then, texture data 66 is interpolated and generated between the control point 63-4 and the control point 63-1 '. That is, the weft thread 60 is interpolated between the right end portion of the cutout area 65 and the right outer side of the cutout area 65 based on the texture generation information described above, thereby generating an edge 62 'and the like.

  Accordingly, height data 67 is generated based on the texture data 66 even on the right outside of the cutout range 65.

<Texture overwrite step (step S23 in FIG. 17)>
Next, according to the pixel value of the height data 67, the control unit 10 converts the height data 67-1 of the portion outside the right end portion of the cutout range 65 shown in FIG. The height data 67-2 is overwritten. At this time, the left end of the height data 67-1 (the right end of the cutout range 65) is made to correspond to the left end of the cutout range 65.

  At this time, the control unit 10 compares pixel values at corresponding positions, and the height of the texture indicated by the pixel value of the height data 67-1 is higher than the height of the texture indicated by the pixel value of the height data 67-2. The pixel value of the height data 67-2 is set as the pixel value of the height data 67-1 at the position. Otherwise, the pixel value of the height data 67-2 is maintained.

  The process of step S23 is also performed on the left outer side of the cutout range 65. That is, according to the pixel value of the height data 67, the height data 67-3 at the outside of the left end portion of the cutout range 65 is overwritten with the height data 67-4 at the right end portion of the cutout range 65. At this time, the right end of the height data 67-3 (the left end of the cutout range 65) is made to correspond to the right end of the cutout range 65. Similarly to the above, the control unit 10 compares the pixel values at the corresponding positions at this time, and the height of the texture indicated by the pixel value of the height data 67-3 is the height of the texture indicated by the pixel value of the height data 67-4. If higher than that, the pixel value of the height data 67-4 is set as the pixel value of the height data 67-3 at the position. Otherwise, the pixel value of the height data 67-4 is maintained.

  When the above processing is performed, the height data 67 is generated along the weft 60-1 in the cutout range 65 of FIG. 18B as shown in FIG. This is because, in the generation of the height data 67 representing the maximum value of the height of the texture at an arbitrary position, the texture data 66 generated outside the right (left) end of the cutout area 65 is converted to the left ( The right (right) end portion is overwritten with the left (right) end of the texture data 66 and the left (right) end of the cutout range 65 in correspondence with each other, and is substantially equivalent to the generation of the texture data 66 of FIG. The end A and the end A ′ along the direction of the weft 60-1 become continuous.

  That is, as shown in FIG. 22A, when the height data 67 is arranged horizontally, the height data 67 continues smoothly at the joint 69. This can be seen from the fact that the ends of the texture data 66 are continuous at the joint 69.

  On the other hand, FIG. 22B shows the texture data 66 in the cut-out range 65 being continued as it is, but the height information of the texture data 66 is always discontinuous at the joint 69. Therefore, when the height data 67 of the cutout range 65 is connected as it is, the joint 69 becomes unnatural.

  As described above, since the height data generated by the seamless processing according to the present embodiment has continuous pixel values at the joints, the joints do not become unnatural when the images are joined.

  As shown in FIG. 23A, the processing of steps S72 to S73 is also performed for the control points 63 arranged along the weft 60-2 to the weft 60-4 in FIG. 18A. When the height data 67 as shown in FIG. 6 is generated, the end B and end B ′ of the height data 67 corresponding to the weft 60-2 and the end C and end C ′ of the height data 67 corresponding to the weft 60-3 are generated. The end portion D and the end portion D ′ of the height data 67 corresponding to the weft thread 60-4 also become continuous. For simplification, in FIG. 23, the width direction of each weft 60 is represented by one pixel.

  The control unit 10 performs the same process on the control points 63 arranged along the warp yarns 59-1 to 59-4, and generates height data 67 for the cutout range 65. When performing output in an output step, which will be described later, if seamlessly aligned in the vertical and horizontal directions as shown in FIG. 23C, a seamless image smoothly generated in the vertical and horizontal directions can be generated and output.

  Such a seamless image is shown in FIG. 24, and it can be seen that the edges are smoothly continuous.

  In step S72, the texture data 66 is interpolated and generated outside the right end portion of the cut-out range 65. However, in step S72, a control point may be added outside one of the end portions. That is, in step S72, texture data 66 may be interpolated and generated outside the left end portion of the cutout range 65 by adding a control point outside the left end portion.

  In addition, the texture data 66 is generated in the same manner as described above in the control point adding step S72, and in the texture overwriting step S73, the texture data 66 generated outside the right end portion of the cutout range 65 is applied to the left end portion of the cutout range 65. The texture data 66 is overwritten in correspondence with the left end of the cutout range 65 (the right end of the cutout range 65) and the left end of the cutout range 65, and the texture data 66 generated outside the left end of the cutout range 65 is displayed at the right end of the cutout range 65 at The right end of the data 66 (the left end of the cutout range 65) and the right end of the cutout range 65 may be overwritten in correspondence. This actually generates the texture data 66 of FIG. 21, and the end A and the end A ′ (FIG. 21) of the height data 67 generated based on the texture data 66 are smoothly continuous. . In this case, it is not necessary to determine the magnitude of the pixel value.

  Further, in the texture overwriting step S23, when the height data 67 or the texture data 66 is overwritten, the end of the position shifted by a predetermined amount in the direction orthogonal to the weft 60 is not overwritten on the end along the direction of the weft 60. May be overwritten. That is, as shown in FIG. 25A, the weft thread 60-3 is the height data 66 outside the right end portion of the cutout range 65 generated for the weft threads 60-1, 60-2, 60-3, 60-4. , 60-4, 60-1, and 60-2 are overwritten with the height data 66 at the left end of the cut-out range 65, and are generated for the wefts 60-1, 60-2, 60-3, and 60-4. The height data 67 outside the left end of the cutout area 65 is overwritten with the height data 67 at the right end of the cutout area 65 generated for the wefts 60-3, 60-4, 60-1, and 60-2. Also good. The same applies when the texture data 66 is overwritten.

  In this case, the height data 67 corresponding to the weft 60-1 and the height data 67 corresponding to the weft 60-3 are continuous, and the height data 67 corresponding to the weft 60-2 and the height data 67 corresponding to the weft 60-4 are obtained. It becomes continuous. That is, the end A and the end C ′, the end A ′ and the end C, the end B and the end D ′, and the end B ′ and the end D shown in FIG. .

  The control unit 10 performs seamless processing on the warp yarn 59 as described above, and generates height data of the cutout range 65. Then, when the height data 67 of the cut-out range 65 is output in an output step described later, as shown in FIG. 25C, a predetermined amount position is set in the vertical direction (Z-axis direction orthogonal to the direction of the weft 60). The seams become continuous when they are shifted and arranged. Since the height data 67 of the cut-out range 65 is arranged with the positions shifted, the joints look more natural.

  Note that the predetermined amount and the direction in which the overwriting position is shifted can be variously determined depending on how the height data 67 to be generated is arranged. The overwriting method is selected in advance, including whether or not to shift in overwriting, and the control unit 10 can perform the above processing based on this method. Further, it may be determined by the operator via the input unit 15 at the time of processing.

  As described above, seamless processing (step S2 in FIG. 3) is performed, and height data subjected to seamless processing is generated. According to the present embodiment, since the height data is seamlessly processed while reflecting the texture data representing the fine shape of the texture, it is possible to perform precise seamless processing, and the texture data is irregular, such as fiber markings. Even in the case of having a portion, a highly accurate seamless process can be performed. In addition, since one unit of height data having smooth edges at the end when a plurality are arranged is processed, the data to be handled is small, the load on the calculation process can be reduced, and even high-resolution data There is an advantage that the burden of calculation processing can be suppressed.

  In addition, the seamless processing according to the present embodiment is not limited to fiber data, and includes control points that can generate texture data between control points adjacent in a predetermined direction using texture generation information, and is generated using the control points. It can be applied to texture data (height data) in general. The type of texture generation information described above varies depending on the type of texture.

  Furthermore, in this embodiment, fiber data including weft yarns and warp yarns whose height fluctuates periodically has been described as an example of texture data. However, the present invention is not applied only to data having periodicity. Even if the data has no periodicity, it can be applied in the same procedure as long as the above conditions are satisfied. In this case, the control point extraction conditions in step S71 (the phases of the end portions are matched). (The cutout range 65 is determined) is not necessary.

  Further, the height information represented by the height data is not limited to the information representing the actual height as described above, but includes information regarded as height information and used as height information in the embossed plate manufacturing described later. For example, it may be possible to express color information such as shading as height information on an embossed plate or a sheet manufactured thereby, for example, the Y axis as a color difference from a predetermined color (which is regarded as the maximum height). Seamless processing can be performed.

<Output Step (Step S3 in FIG. 3)>
The control unit 10 converts the height data 67 that has been seamlessly processed into a preset number (size), arrangement, or in accordance with an instruction operation input from the input unit 15, as shown in FIGS. In a state in which a plurality of lines are arranged as in (), the data is stored in a RAM, the storage unit 11 or a storage medium connected to the media input / output unit 12 and output. The size can be determined according to the size of the embossed plate described later. Further, these may be displayed on the display unit 16 or output to the printing unit 17 for printing.

[Second Embodiment]
Next, the embossed plate manufacturing apparatus and sheet according to the present invention will be described.

  The embossed plate manufacturing apparatus 9 of the second embodiment generates height data that is generated and seamlessly processed according to the texture data processing procedure of the first embodiment, and is arranged and output in accordance with the size of the embossed plate cylinder. Based on the above, an embossed sculpture of the texture surface shape is applied to the embossed plate cylinder.

  As shown in FIG. 26, the embossed plate manufacturing apparatus 9 includes a computer 91 (texture data processing device 1) that outputs or stores height data, and an embossed plate manufacturing unit 92.

  The computer 91 generates height data and performs seamless processing to arrange a plurality of height data according to the size of the embossed plate cylinder, or stores a plurality of height data generated in advance and seamlessly processed according to the size of the embossed plate cylinder. To remember. The computer 91 controls the operation of the embossed plate manufacturing unit 92.

In the second embodiment, an engraving machine 93 that performs mechanical engraving or laser engraving is used as the embossed plate manufacturing means 92.
FIG. 27 shows the configuration of an embossed plate manufacturing apparatus 9A according to the second embodiment.

As shown in FIG. 27, the embossed plate manufacturing apparatus 9 </ b> A includes a computer 91, an engraving machine 93, a support base 101, and a rotation drive unit 104.
The engraving machine 93 includes an engraving machine control unit 931, a drive unit 932, and an engraving blade (cutting blade) 933. The engraving machine control unit 931 drives the engraving machine driving unit 932 according to the texture height data input from the computer 91, and the engraving blade 933 is supported on the plate surface of the embossing plate cylinder 100 supported by the support bases 101, 101. While moving up and down in the depth direction, the emboss plate cylinder 100 is moved in the direction of the rotation axis (direction AA in the figure). The rotation driving unit 104 rotates the embossed plate cylinder 100 supported by the support bases 101 and 101 around the direction of the rotation axis AA in accordance with an instruction input from the computer 91.
Accordingly, the engraving machine 93 engraves the metal or resin embossed plate cylinder 100 at a depth according to the texture height data input from the computer 91 to form the surface shape of the texture such as a woven fabric. .

The engraving machine 93 may be of a type using a laser or the like instead of the engraving blade 933. In this case, the engraving machine 93 includes a scanning unit, a laser oscillator, and an optical unit instead of the driving unit 932 and the engraving blade 933 in FIG. 27, and irradiates the laser beam generated by the laser oscillator through the optical unit. To do.
The engraving machine control unit 931 drives the scanning unit to move the optical unit in the direction of the rotation axis of the embossing plate cylinder 100 (direction AA in the figure), and controls the laser oscillator to increase the output value of the laser. Modulates the output value according to the information (height data). As a result, a laser beam is irradiated to a predetermined position of the embossing plate cylinder 100 with a predetermined output, and the surface of the embossing plate cylinder 100 is engraved with textured surface irregularities such as woven fabric.

  For example, the engraving machine 93 performs engraving with a gray scale 0% portion in a gradation image (height data) as a convex portion and a gray scale portion 100% as a concave portion. The sculpture depth can be set arbitrarily. For example, when 500 μm is set, the 0% gray scale part is 0 μm deep, the 50% gray scale part is 250 μm deep, and the gray scale part is 100%. Is engraved at a depth of 500 μm.

  A technique for engraving an embossed cylinder from grayscale image data is described in detail in, for example, Japanese Patent Application Laid-Open No. 2008-246853.

  By using the embossed plate manufactured by the embossed plate manufacturing apparatus 9A of the second embodiment and embossing a desired sheet, a sheet having a surface shape of a texture such as a woven fabric can be obtained. It becomes possible. A sheet | seat consists of paper, resin, synthetic leather, a metal, etc., for example, is utilized as building materials, such as a wallpaper.

  As described above, according to the embossed plate manufacturing apparatus 9A of the second embodiment, a fine shape of a texture such as a fiber generated by the same method as that of the first embodiment is expressed. It is possible to form the surface shape of a texture such as a woven fabric on the embossed plate cylinder 100 based on the height data arranged so that the portions are smoothly continuous. In addition, it is possible to emboss a desired sheet using the embossed plate cylinder 100. As a result, it is possible to produce an embossed plate cylinder that expresses a fine shape and that a plurality of textured surface shapes (height data) arranged smoothly continue. A sheet obtained with the cylinder in which texture surface shapes are smoothly continuous expresses a fine shape, and the joints do not look unnatural and have excellent design.

In addition, the embossed plate manufactured by this method is produced by using a method of shaping a texture material such as an actual fabric, for example, reduction of fabric wrinkles or kinks, or undulation of the fabric surface (fiber collapse), etc. No loss of texture.
Further, the sheet surface can be processed into a textured surface shape such as a woven fabric by using an embossed plate, and mass production can be performed.

  In the second embodiment, for example, height data generated by a computer or the like different from the computer 91 connected to the engraving machine 93 is input to the computer 91 via a storage medium, It may be input to the computer 91 via a predetermined communication interface.

[Third Embodiment]
The embossed plate manufacturing apparatus of the third embodiment is generated according to the texture data processing procedure of the first embodiment, seamlessly processed, and based on height data that is arranged and output in accordance with the size of the embossed plate cylinder. Then, the embossed plate cylinder is formed with an uneven shape on the texture surface such as a woven fabric using an etching method.

As shown in FIG. 28, an embossed plate manufacturing apparatus 9B according to the third embodiment includes a computer 91 (texture data processing apparatus 1) that generates height data and the like, a pattern exposure apparatus 96, a corrosion apparatus 98, and a support base 101. , And a rotation drive unit 104. An embossing cylinder 200 coated with a resist layer is attached to the support base 101.
The configurations and operations of the support base 101 and the rotation drive unit 104 are the same as those in the second embodiment.

  The height data of the computer 91 may be input via a storage medium or input via a predetermined communication interface, for example, generated by another computer.

  The pattern exposure apparatus 96 includes a scanning unit 961, a laser oscillator 962, and an optical unit 963. The pattern exposure apparatus 96 drives the scanning unit 961 in accordance with the texture height data input from the computer 91, and moves the optical unit, which is a laser irradiation port, in the rotation axis direction (AA direction in the figure) of the embossed plate cylinder 200. At the same time, the laser oscillator 962 is controlled to modulate the output value according to the depth information (height data). In this embodiment, height data is binarized using a predetermined pixel value as a threshold value, and control is performed so that the laser is turned on / off with the threshold value as a boundary. Thereby, a laser beam is irradiated to a predetermined position of the embossed plate cylinder 200 coated with the resist layer, and an exposure process for forming a pattern including an exposed portion and a non-exposed portion is performed. As the resist layer, either a positive resist or a negative resist can be used. In the case of a positive resist, the resist layer in the exposed area is gelled by the exposure process. In the case of a negative resist, the resist layer in the exposed portion is cured by the exposure process. After the exposure processing is completed, the embossed plate 200 is subjected to development and plate washing in a developing device (not shown) to remove an exposed portion (in the case of a positive resist) or a non-exposed portion (in the case of a negative resist) of the resist layer. A resist pattern is formed. Thereafter, when a corrosive liquid is applied to the embossed plate by the corrosive device 98, the exposed metal surface is corroded and recessed, and an uneven structure corresponding to the pattern is formed. Thereafter, a cleaning process is performed to remove the resist portion. By repeating the resist layer coating, the exposure process, the development process, the cleaning process (removal of the non-resist part), the corrosion process, and the cleaning process (removal of the resist part) a plurality of times while changing the above-mentioned threshold value, the embossed cylinder 200 Concavities and convexities having different depths are formed on the surface.

  The threshold value may be determined via the input unit of the computer 91 at the time of creating the embossed version, but the determination of the threshold value is performed while looking at graphs and numbers on the display unit and the like, which takes time when creating the embossed version. Therefore, the threshold value is determined in advance, and the original height data is output by the control unit 10 of the texture data processing apparatus 1 or the instruction operation input from the input unit 15 when the height data is output (step S3). It is preferable that height data based on a threshold value is created in advance and input to the pattern exposure device 96 to control laser ON / OFF according to the threshold value. For example, height data of a plurality of gradations (multi-valued image) based on a threshold value is created by using a posterization function of image processing software and the like, and laser ON / OFF control according to the threshold value is performed based on the height data. Also, height data of two gradations (binary image) based on each threshold value is created, and laser ON / OFF control according to the threshold value is performed by changing the height data of the binary image to be used. Good. If height data based on the threshold value is created in advance, it is possible to save the trouble of setting the threshold value when creating the embossed plate, and the mask shape and mask area at the time of etching can be visually grasped from the height data based on the threshold value. Unevenness is easy to image and suitable.

  In addition, as a means for forming a resist by a laser beam, laser printing which does not require development processing or removal of non-resist portions by cleaning processing is performed by directly drawing (burning off the resist layer) on a cylinder coated with a resist layer. There is also a plate device, which is used a lot. The configuration of the embossed plate manufacturing apparatus in this case is the same as that of the embossed plate manufacturing apparatus 9B described above except that a developing device or the like is not required. The pattern exposure device 96 controls the texture height data input from the computer 91 in the same manner as described above so that the laser is turned on / off with the above threshold as a boundary, and an embossed cylinder coated with a resist layer. A predetermined position of 200 is irradiated with a laser beam, and the resist layer in the exposed portion is burned off and removed to form a resist portion pattern. As a laser oscillated by the laser oscillator 962, a YAG laser or a fiber laser can be used. Thereafter, the same corrosion treatment as described above is performed to form an uneven structure corresponding to the pattern on the embossed plate, and the resist portion is removed by a cleaning treatment. By repeating the resist layer coating, the exposure process, the corrosion process, and the cleaning process (removal of the resist portion) a plurality of times while changing the above-described threshold value, irregularities having different depths are formed on the surface of the embossed plate cylinder 200. As described above, since the resist layer is burned out by the laser, it is not necessary to remove the non-resist portion by development processing or cleaning processing.

  If embossing is performed on a desired sheet made of paper, resin, synthetic leather, metal, etc., using the embossed plate manufactured using the embossed plate manufacturing apparatus 9B of the third embodiment, It is possible to obtain a sheet having a surface shape of a texture such as a woven fabric. By the above procedure, an embossed cylinder can express a fine shape, and a plurality of textured surface shapes (height data) can be produced smoothly and continuously. The sheet obtained with the cylinder expresses a fine shape, and the joints do not look unnatural and have excellent design.

  As described above, according to the embossed plate manufacturing apparatus 9B of the third embodiment, based on the height data of the fine texture surface shape such as the fabric generated by the same method as that of the first embodiment. Thus, it is possible to form the embossed cylinder 200 in which the ends of the texture surface shape (height data) are smoothly continuous. As a result, it is possible to obtain an embossed plate that finely expresses the surface shape of the texture such as the fiber level of the fabric and does not cause unnatural texture joints. In addition, the embossed plate manufactured by this method is produced by using a method of shaping a texture material such as an actual fabric, for example, reduction of fabric wrinkles or kinks, or undulation of the fabric surface (fiber collapse), etc. No loss of texture.

  Further, by using the embossed plate cylinder 200, a desired sheet surface can be processed into a woven fabric and mass-produced.

[Fourth Embodiment]
Similarly to the third embodiment, the embossed plate manufacturing apparatus of the fourth embodiment is generated and seamlessly processed according to the texture data processing procedure of the first embodiment, and according to the size of the embossed plate cylinder. Based on a plurality of height data arranged and output, an uneven shape on the texture surface such as a woven fabric is formed on the embossed cylinder using an etching technique. A photomask 97 is used for etching.

  As shown in FIG. 29A, in the fourth embodiment, the computer 91, the pattern exposure apparatus 96, and the corrosion apparatus 98 described above are used in the manufacturing stage of the photomask 97. That is, the photomask manufacturing apparatus 9C includes a computer 91 (texture data processing apparatus 1) that generates height data and the like, a pattern exposure apparatus 96, and a corrosion apparatus 98.

  The height data of the computer 91 may be input via a storage medium or input via a predetermined communication interface, for example, generated by another computer.

  In the photomask 97, a light shielding film 972 is formed on a photomask substrate 973, and a resist layer 971 is further coated thereon. For the photomask 97 in such a state, the pattern exposure apparatus 96 performs exposure according to the texture height data (binary data at a predetermined depth direction) in the same manner as in the third embodiment. Thus, an exposed portion and a non-exposed portion are formed in the resist layer 971. After exposure, development and washing are performed to remove an unnecessary resist layer and form a pattern of a resist portion. Further, a corrosive solution is applied by the corrosive device 98 to perform corrosion and cleaning, thereby removing an unnecessary light shielding film and removing a resist portion, thereby forming a light shielding pattern on the photomask substrate 973.

The photomasks 97 having the light-shielding patterns formed in this way are manufactured by the number of necessary depth positions, and are used when exposing the embossed plate cylinder 200 as shown in FIG. 29B.
As shown in FIG. 29B, the embossed plate cylinder 200 coated with the resist layer is covered with a photomask 97 and exposed to expose the non-exposed portion and the non-exposed portion according to the light shielding pattern formed on the photomask 97. An exposed portion is formed. Further, as in the third embodiment, an unnecessary resist layer is removed by performing development processing and cleaning processing to form a resist portion pattern, and by performing corrosion processing and cleaning processing, the embossing plate cylinder 200 Unevenness is formed on the surface, and the resist portion is removed. By replacing the photomask 97 and repeating resist layer coating, exposure, development, cleaning (removal of the non-resist portion), corrosion, and cleaning (removal of the resist portion), the surface of the embossed plate cylinder 200 is uneven in multiple steps. Is formed.

  As described above, according to the photomask manufacturing apparatus 9C of the fourth embodiment, it is possible to manufacture the photomask 97 that has been subjected to the light shielding pattern based on the height data. If the embossed plate is etched using the photomask 97, it is possible to obtain an embossed plate in which irregularities based on height data are formed. As a result, it is possible to obtain an embossed plate that finely expresses the surface shape of the texture such as the fiber level of the fabric and does not cause unnatural texture joints. In addition, the embossed plate manufactured by this method is produced by using a method of shaping a texture material such as an actual fabric, for example, reduction of fabric wrinkles or kinks, or undulation of the fabric surface (fiber collapse), etc. No loss of texture.

  In addition, if an embossing process is performed on a desired sheet made of paper, resin, synthetic leather, metal, etc. using the embossed plate manufactured in this way, a sheet having a surface shape of a texture such as a woven fabric is obtained. Can be obtained. By the above procedure, an embossed cylinder can express a fine shape, and a plurality of textured surface shapes (height data) can be produced smoothly and continuously. The sheet obtained with the cylinder expresses a fine shape, and the joints do not look unnatural and have excellent design.

  The preferred embodiments of the texture data processing apparatus and the like according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these are naturally within the technical scope of the present invention. Understood.

1 .... Texture data processing device 9 .... Embossed plate manufacturing device 10 .... Control unit 15 .... Input unit 16 .... Display Section 17 ··· Printing section 19 ··· Texture generation portion 20 ··· Seamless processing portion 21 ··· Parameter input portion 22 ··· Fiber shape generation Section 23... Yarn shape generation section 24... Fabric structure generation section 25... Fabric shape generation section 26.・ ・ ・ ・ ・ ・ Control point extraction unit 28 ・ ・ ・ ・ ・ ・ Control point addition unit 29 ・ ・ ・ ・ ・ ・ Text overwriting unit 30 ・ ・ ・ ・ ・ ・ Output unit 31 ・ ・ ・ ・ ・ ・ Fiber data 34 , 35, 36 ··· yarn models 43 to 47, 59 · · · warp yarns 51 to 56, 60 · · · horizontal 62 ······ 63 ··························································· 66・ Seam 91 ・ ・ ・ ・ ・ ・ Computer 92 ・ ・ ・ ・ ・ ・ Embossing plate manufacturing means 93 ・ ・ ・ ・ ・ ・ Engraving machine 96 ・ ・ ・ ・ ・ ・ Pattern exposure device 97 ・ ・ ・ ・ ・ ・ Photomask 98 ... Corrosion equipment 100 ... Embossed cylinder 200 ... Embossed cylinder (resist layer coating)

Claims (16)

Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. A texture data processing device that performs seamless processing of height data used in the manufacture of embossed plates,
Control point extraction means for cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. Control point addition means for adding height and generating height data based on the control points and texture data generated by the added control points;
According to the pixel value of the height data, the height data generated outside the other end of the predetermined range is overwritten with the height data at the corresponding position at one end of the predetermined range, and the predetermined data is overwritten. Texture overwriting means for overwriting height data at a corresponding position at the other end of the predetermined range with height data generated outside one end of the range;
A texture data processing apparatus comprising: The height data overwrite means
The pixel value of the height data generated outside the other end of the predetermined range is compared with the pixel value of the height data of one end of the predetermined range at a corresponding position, and the predetermined range If the height of the texture indicated by the pixel value of the height data generated outside the other end of the image is higher than the height of the texture indicated by the pixel value of the height data at one end of the predetermined range, The pixel value at the position is the pixel value of the height data generated outside the other end of the predetermined range,
The pixel value of height data generated outside one end of the predetermined range is compared with the pixel value of height data at the other end of the predetermined range at a corresponding position, and the predetermined range If the height of the texture indicated by the pixel value of the height data generated outside one end of the image is higher than the height of the texture indicated by the pixel value of the height data at the other end of the predetermined range, 2. The texture data processing apparatus according to claim 1, wherein the pixel value at the position is a pixel value of height data generated outside one end of the predetermined range. Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. A texture data processing device that performs seamless processing of height data used in the manufacture of embossed plates,
Control point extraction means for cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. Control point addition means for adding the outside, and generating the texture data by the control point and the added control point;
The texture data generated outside the other end of the predetermined range is overwritten in the corresponding position at one end of the predetermined range, and is generated outside the one end of the predetermined range. Texture overwriting means for overwriting the corresponding position at the other end of the predetermined range and generating height data based on the texture data;
A texture data processing apparatus comprising:   The texture overwriting means overwrites the one end of the predetermined range with the height data or the texture data generated outside the other end of the predetermined range. Overwriting a position shifted by a predetermined amount from one end along the direction, the height data or texture data generated outside one end of the predetermined range is transferred to the other end of the predetermined range. The texture data processing according to any one of claims 1 to 3, wherein when overwriting, a position shifted by a predetermined amount from the other end portion of the predetermined range along the predetermined direction is overwritten. apparatus. The texture data includes a portion whose height position has periodicity along the predetermined direction,
5. The texture data according to claim 1, wherein the predetermined range is such that a phase of the height position coincides at one end and the other end along the predetermined direction. Processing equipment.   6. The texture data processing according to claim 5, wherein the texture data is data of a woven fabric having a warp and a weft, and the predetermined direction is a direction along the warp and a direction along the weft. apparatus. Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. A texture data processing method using a texture data processing device that performs seamless processing of height data used in the manufacture of an embossed plate,
A control point extracting step of cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. A control point adding step for generating height data based on the control points and texture data generated by the added control points;
According to the pixel value of the height data, the height data generated outside the other end of the predetermined range is overwritten with the height data at the corresponding position at one end of the predetermined range, and the predetermined data is overwritten. A texture overwriting step of overwriting height data at a corresponding position at the other end of the predetermined range with height data generated outside one end of the range;
A texture data processing method comprising: Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. A texture data processing method using a texture data processing device that performs seamless processing of height data used in the manufacture of an embossed plate,
A control point extracting step of cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. Adding outside, the control point adding step of generating texture data by the control point and the added control point;
The texture data generated outside the other end of the predetermined range is overwritten in the corresponding position at one end of the predetermined range, and is generated outside the one end of the predetermined range. A texture overwriting step of overwriting the texture data at a corresponding position at the other end of the predetermined range to generate height data based on the texture data;
A texture data processing method comprising:   A program for causing a computer to function as the texture data processing apparatus according to any one of claims 1 to 8. Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. An embossing plate manufacturing apparatus that performs seamless processing of certain height data and manufactures an embossed plate using the seamlessly processed height data,
Control point extraction means for cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. Control point addition means for adding height and generating height data based on the control points and texture data generated by the added control points;
According to the pixel value of the height data, the height data generated outside the other end of the predetermined range is overwritten with the height data at the corresponding position at one end of the predetermined range, and the predetermined data is overwritten. Texture overwriting means for overwriting height data at a corresponding position at the other end of the predetermined range with height data generated outside one end of the range;
Height data output means for outputting a plurality of height data generated by the texture overwriting means,
Based on the height data output by the height data output means, an embossed plate manufacturing means for manufacturing an embossed plate in which the texture surface shape is formed on the embossed plate cylinder;
An embossed plate manufacturing apparatus comprising: Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. An embossing plate manufacturing apparatus that performs seamless processing of certain height data and manufactures an embossed plate using the seamlessly processed height data,
Control point extraction means for cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. Control point addition means for adding the outside, and generating the texture data by the control point and the added control point;
The texture data generated outside the other end of the predetermined range is overwritten in the corresponding position at one end of the predetermined range, and is generated outside the one end of the predetermined range. Texture overwriting means for overwriting the corresponding position at the other end of the predetermined range and generating height data based on the texture data;
Height data output means for outputting a plurality of height data generated by the texture overwriting means,
Based on the height data output by the height data output means, an embossed plate manufacturing means for manufacturing an embossed plate in which the texture surface shape is formed on the embossed plate cylinder;
An embossed plate manufacturing apparatus comprising:   12. The embossing plate manufacturing means is engraving means for engraving the surface shape of the texture using a cutting blade or a laser beam with respect to the embossing plate cylinder. Embossed plate manufacturing equipment. The embossed plate manufacturing means includes:
Pattern exposure means for forming an exposure pattern based on the height data for the embossing plate cylinder coated with a resist layer, or a photomask used for exposure processing to the embossing plate cylinder;
Corrosion means for performing a corrosion treatment on the embossed plate cylinder on which the exposure pattern is formed, or the photomask;
The embossed plate manufacturing apparatus according to claim 10 or 11, characterized by comprising: Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. An embossed plate manufacturing method using an embossed plate manufacturing apparatus that performs seamless processing of certain height data and manufactures an embossed plate using height data that has been seamlessly processed,
A control point extracting step of cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. A control point adding step for generating height data based on the control points and texture data generated by the added control points;
According to the pixel value of the height data, the height data generated outside the other end of the predetermined range is overwritten with the height data at the corresponding position at one end of the predetermined range, and the predetermined data is overwritten. A texture overwriting step of overwriting height data at a corresponding position at the other end of the predetermined range with height data generated outside one end of the range;
A height data output step for outputting a plurality of height data generated by the texture overwriting means;
Based on the height data output by the height data output means, an embossed plate manufacturing step for manufacturing an embossed plate in which the texture surface shape is formed on the embossed plate cylinder;
An embossed plate manufacturing method comprising: Image data that represents texture height information in terms of pixel values based on texture data that includes control points that are continuously arranged in a predetermined direction by generating texture data between adjacent control points based on texture data generation information. An embossed plate manufacturing method using an embossed plate manufacturing apparatus that performs seamless processing of certain height data and manufactures an embossed plate using height data that has been seamlessly processed,
A control point extracting step of cutting out the height data in a predetermined range and extracting control points included in the texture data of the height data in the predetermined range;
The control point at one end of the predetermined range along the predetermined direction is adjacent to the control point of the other end along the predetermined direction and at the other end of the predetermined range. Adding outside, the control point adding step of generating texture data by the control point and the added control point;
The texture data generated outside the other end of the predetermined range is overwritten in the corresponding position at one end of the predetermined range, and is generated outside the one end of the predetermined range. A texture overwriting step of overwriting the texture data at a corresponding position at the other end of the predetermined range to generate height data based on the texture data;
A height data output step for outputting a plurality of height data generated by the texture overwriting means;
Based on the height data output by the height data output means, an embossed plate manufacturing step for manufacturing an embossed plate in which the texture surface shape is formed on the embossed plate cylinder;
An embossed plate manufacturing method comprising:   The sheet | seat which processed the sheet | seat surface shape using the embossing plate manufactured by the embossing plate manufacturing apparatus of Claim 10 or Claim 11.