JP2017138726A - Face plate pattern finish simulation system and face plate pattern finish simulation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a face plate pattern finish simulation system for simulating the finish of a pattern constituted from a design including a color and layers having a rubbed shape of embossing and permeation/scattering effects, and confirming the finish of a pattern including effects on finish of each layer.SOLUTION: The present invention is a face plate pattern finish simulation system for displaying a pattern visualization mage indicating the finish of a pattern consisting of a design, a rugged shape, and gloss in a face plate constituted from a plurality of layers including a design, a rugged shape, and gloss information, comprising: an image processing unit for generating a pattern visualization image of one or a stack of layers consisting of design image data, rugged shape image data, and gloss image data; a display image selection unit for selecting a pattern visualization image that corresponds to one or a stack of layers from the pattern visualization image; and an image display control unit for switching an image being displayed in a prescribed display area of a display screen to the pattern visualization image selected by the display image selection unit and displaying the selected image.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a face material pattern finish simulation system and a face material pattern finish simulation method for simulating the finish of an embossed face material pattern.

Conventionally, media such as wallpaper and synthetic leather having a concavo-convex pattern on the surface, interior materials for cars, for example, decorative sheets used for floors and furniture described in Patent Document 1, decorative materials for industrial product surfaces, etc. On the surface, a pattern with a white background, a single color, or a pattern composed of multiple colors or an uneven shape is formed, by embossing to print the pattern on the surface of the face material and form an uneven shape on the top A pattern is created.
In designing a face material, a face material designer designs a pattern, an uneven shape, and the like, and confirms the finish of the face material pattern created by Patent Document 1 or Patent Document 2, for example. Then, when the finish of the pattern of the face material is not a desired appearance (hereinafter referred to as a desired pattern form), the designer individually corrects the pattern, the concavo-convex shape, etc., and adjusts so that the desired finish is obtained.

Japanese Patent No. 5648735 Japanese Patent No. 5434499

However, in the simulation of the pattern of the face material according to Patent Document 2, the finished pattern form of the face material pattern is determined by the color of the pattern, the shading of the concavo-convex shape, gloss, and transmission and scattering due to the superposition of a plurality of layers. There is a problem that it is difficult to determine which of the design of the pattern, the uneven shape, and the gloss should be corrected.
Moreover, in the simulation of the pattern of the face material according to Patent Document 2, the shadow of the face material can be seen, but the simulation including the color and gloss of the pattern cannot be performed. For this reason, in the simulation of the pattern of the face material according to Patent Document 2, it is impossible to see a pattern composed of the color and gloss of the pattern. There is a problem that it is difficult to determine whether or not it should be corrected.

  The present invention has been made in view of such a situation, and simulates the finish of a pattern including a pattern including a color, an embossed uneven shape and a layer having a transmission / scattering effect, and the finish of each layer Provided are a face material pattern finish simulation system and a face material pattern finish simulation method capable of confirming a pattern form of a finished pattern including an influence.

  In order to solve the above-described problem, the face material pattern finish simulation system according to the present invention is based on the design, the concavo-convex shape, and the gloss in the face material composed of a plurality of layers including the pattern, the concavo-convex shape, and the gloss information. This is a face material pattern finishing simulation system for displaying a pattern visualizing image showing the finished pattern. The pattern visualizing image obtained by superimposing any one of the layers of the pattern image data, the concavo-convex shape image data, and the gloss image data, or the superimposed image. Displayed in a predetermined display area of a display screen, an image processing unit to be generated, a display image selection unit for selecting a pattern visualization image corresponding to the layer or the overlay of the layers from the generated pattern visualization image An image displayed by switching the displayed image to the pattern visualization image selected by the display image selection unit Characterized in that it comprises a shows control unit.

  In the face material pattern finish simulation system of the present invention, when the image display control unit switches the image displayed in the display area to the pattern visualization image selected by the display image selection unit, each of the pattern visualization images before and after switching is displayed. The corresponding pixels are displayed in the display area so that the display positions thereof are the same.

  In the face material pattern finish simulation system of the present invention, the display image selection unit selects the pattern visualized image according to the layer selected in the layer selection region of the display screen.

  In the face material pattern finish simulation system according to the present invention, the layer selection area includes each of the layer unit selection areas of the pattern image data, the uneven shape image data, and the gloss image data, and the display image selection unit selects The pattern visualization image formed by superimposing the layers in the layer unit selection area is selected as an image to be displayed in the display area.

  In the face material pattern finish simulation system of the present invention, the layer selection region is formed as a switching button, and the display image selection unit switches the layer overlap each time the layer selection region is pressed, The pattern visualization image of the superposition of the switched layers is selected as an image to be displayed in the display area.

  The face material pattern finish simulation system of the present invention further includes an editing unit that edits data of the layer in the pattern visualized image displayed in the display area.

  In the face material pattern finish simulation system of the present invention, an adjustment area for adjusting the data of the layer is provided in the display area, and the editing unit operates the adjustment area to display the display area. In the pattern visualized image, the data of the layer to be edited is adjusted corresponding to the operation, and the displayed pattern visualized image is changed by the image processing unit in accordance with the adjustment. .

  In the face material pattern finish simulation system of the present invention, the adjustment region is provided as a slider corresponding to each layer.

  The face material pattern finish simulation system of the present invention is characterized in that the adjustment area includes a data adjustment area for adjusting data and an edit layer selection area for selecting the layer to be edited. .

  In the face material pattern finish simulation system according to the present invention, the data adjustment area has a two-dimensional adjustment plane including a first adjustment axis and a second adjustment axis, and the first adjustment axis and the second adjustment axis. For each axis, the layer to be edited is set by the editing layer selection area.

  The face material pattern finish simulation method of the present invention is a pattern visualization image showing the finish of a pattern composed of the pattern, the concavo-convex shape and the gloss in a face material composed of a plurality of layers including a pattern, the concavo-convex shape and gloss information. Image processing in which the image processing unit generates the pattern visualization image that is one of the layers of the pattern image data, the uneven shape image data, and the glossy image data, or the superimposed image. A display image selection process in which a display image selection unit selects a pattern visualization image corresponding to the layer or the superposition of the layers from the generated pattern visualization image, and an image display control unit In the predetermined display area, the displayed image is switched to the pattern visualization image selected by the display image selection unit. Characterized in that it comprises an image display control process for displaying Te.

  As described above, according to the present invention, simulation of the finish of a pattern including a pattern including a color and an embossed uneven shape and a layer having a transmission / scattering effect is performed, and the influence on the finish of each layer is included. The pattern form of the finished pattern can be confirmed.

It is a block diagram which shows an example of a structure of the face material pattern finish simulation system by the 1st Embodiment of this invention. It is a figure which shows the structural example of the table used for the simulation previously written and memorize | stored in the face material database. It is a figure which shows the structural example of the result data table memorize | stored in the memory | storage part 23 corresponding to the result of simulation. It is a figure which shows the structural example of the image process part 13 in FIG. Is a diagram illustrating the correspondence between the irradiance E inputted to each pixel of the output light I _i and the surface of the embossed film to be emitted from the light source. An example of the operation screen of the face material pattern finish simulation system in the first embodiment of the present invention is shown. An example of the operation screen of the face material pattern finish simulation system in the first embodiment of the present invention is shown. 4 is a diagram for describing an example of selection of an image to be displayed in a display area on the display screen 100. FIG. 4 is a diagram for describing an example of selection of an image to be displayed in a display area on the display screen 100. FIG. It is a block diagram which shows an example of a structure of the face material pattern finish simulation system by the 2nd Embodiment of this invention. The example of the operation screen of the face material pattern finish simulation system in the 2nd Embodiment of this invention is shown. The other example of the operation screen of the face material pattern finish simulation system in the 2nd Embodiment of this invention is shown. The other example of the operation screen of the face material pattern finish simulation system in the 2nd Embodiment of this invention is shown. It is a flowchart which shows the operation example of the process of the image data generation process of the pattern visualization image in the surface material pattern finish simulation system in the 2nd Embodiment of this invention.

<First Embodiment>
A first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing an example of the configuration of a face material pattern finish simulation system according to the first embodiment of the present invention. In FIG. 1, a face material pattern finish simulation system 1 includes an input unit 11, an image processing unit 13, a display area setting unit 14, a display image selection unit 15, an image display control unit 16, a display unit 17, a surface material database 18, and a pattern. Each of the image storage unit 19, the uneven shape image storage unit 20, the gloss image storage unit 21, the composite image storage unit 22, and the storage unit 23 is provided.

  The input unit 11 inputs information supplied from input means such as a keyboard, a mouse, and a touch pad, for example, and generates a finished face material pattern image (pattern visualized image) that the user wants to check later. Input of calculation information such as light source characteristic data, light source position data, observation position data, face material position data, pattern image data, glossy image data, uneven shape image data, optical characteristic data of each layer, selection and change of calculation information, etc. The operation is input. Here, the light source characteristic data is information indicating characteristics such as light emitted from the light source with respect to the surface material surface to be calculated at the time of simulation of pattern visualized image generation. The light source position data is information indicating the position of the light source in the three-dimensional space with respect to the surface material surface to be calculated at the time of the simulation of generating the pattern visualized image. The observation position data indicates observation information which is a position in a three-dimensional space where the surface material surface to be calculated is observed.

  The face material position data is information indicating the position of the surface of the face material in the simulation three-dimensional space, for example, the coordinate position of the center point of the face material in the three-dimensional space. The pattern image data is image data of a pattern drawn on the surface of the face material. The glossy image data indicates gloss information on the surface of the face material. Each of the pattern image data and the gloss image data is given to each point of the pixels forming the image on the surface of the face material. The concavo-convex shape data indicates the concavo-convex shape (concave / convex shape) of an embossed embossed film formed of a transparent resin or the like on the surface of the face material. The optical property data is optical property information of each layer, for example, information such as transmittance, refractive index, and scattering coefficient of each layer constituting the face material.

  In the present embodiment, the face material pattern finish simulation system is described by taking as an example a face material in which an uneven embossed film is provided on the face material surface. However, in the face material pattern finish simulation system of this embodiment, the surface material surface is not provided with an uneven embossed film, and the face material surface itself has an uneven surface pattern simulation. Can also be used.

  FIG. 2 is a diagram showing a configuration example of a table used for simulation, which is written and stored in the face material database 18 in advance. FIG. 2A is a light source information table showing information on the light source used in the simulation, and a face material database 18 in which the light source identification information for identifying the light source and the wavelength characteristic of the light source indicated by the light source identification information are stored. A light source characteristic data index, which is an index such as an address, is written and stored in advance.

  FIG. 2B is a pattern information table showing color data (for example, diffuse reflectance information) of a pattern area to be applied to the surface of the face material used for the simulation. The pattern identification information for identifying the pattern and the pattern identification are shown in FIG. A picture image data index, which is an index such as an address in the face material database 18 in which color data of each pixel in the picture area indicated by the information is stored, is stored in advance.

  FIG. 2C is a gloss information table showing information on the surface of the face material used for the simulation. The gloss identification information for identifying the gloss and the gloss image data at each pixel on the surface of the face material indicated by the gloss identification information are stored. The gloss image data index, which is an index such as an address in the face material database 18, is written and stored in advance. The gloss image data is set for each pixel on the surface of the face material as described above, and indicates the specular reflectance and the surface roughness indicating the gloss at each pixel.

  FIG. 2D is a concavo-convex shape table showing the concavo-convex shape of the embossed film formed by embossing on the surface of the face material used for the simulation. The concavo-convex identification information for identifying the concavo-convex shape and the concavo-convex identification information Includes information on unevenness such as the period of the unevenness shown, the width of the convex part of the concave part and the width of the concave part, the shape of the top part of the convex part, the shape of the bottom part of the concave part, the distance between the top part of the convex part and the bottom part of the concave part An uneven shape data index that is an index such as an address in the face material database 18 in which uneven shape data indicating the embossed plate is stored is written and stored in advance.

  FIG. 2E is an optical characteristic data table showing optical characteristics of a coating layer or the like applied on the face material used for the simulation. Optical characteristic identification information for identifying the optical characteristic data and a layer indicated by the optical characteristic identification information An optical characteristic data index that is an index such as an address in the face material database 18 in which optical characteristics including information on reflectance, transmittance, scattering coefficient, and refractive index are recorded is stored in advance.

  Returning to FIG. 1, the face material database 18 is provided in the face material pattern finish simulation system 1 in this embodiment, but may be provided on a network (not shown). In this case, the face material pattern finish simulation system 1 may refer to each of the light source information table, the pattern information table, the gloss information table, and the concavo-convex shape table via a network as necessary. The face material database 18 is formed using a media reading device such as an optical drive, a hard disk, or the like.

  FIG. 3 is a diagram illustrating a configuration example of a result data table stored in the storage unit 23 corresponding to the simulation result. In FIG. 3, corresponding to the simulation result identification information, the light source characteristic data index, the light source position data, the observation position data, the face material position data, the face material magnification data, the picture image data index, the glossy image data index, and the uneven shape data index. Each of the optical characteristic data index, normal map data index, and result index is written and stored. Each of the light source characteristic data index, the pattern image data index, the glossy image data index, the concavo-convex shape data index, and the optical characteristic data index is selected by the user input unit 11, and the light source information table, the pattern information table, and the gloss information table of FIG. , Data read from the concavo-convex shape table and the optical characteristic table.

  In addition, as the light source position data, the observation position data, the face material position data, and the face material magnification data, data input by the user using the input unit 11 is written by the input unit 11. The normal map data index is an index such as an address in the storage unit 23 in which normal map data indicating normal data for each pixel of the uneven surface in the uneven shape of the embossed film provided on the surface of the face material is stored. The line data index is written and stored in advance. The result index is a simulation using light source characteristic data, light source position data, observation position data, face material position data, face material magnification data, pattern image data, gloss image data, uneven shape data, optical characteristic data, and normal map data. And a result index which is an index such as an address in the storage unit 23 in which a result image indicating the pattern of the surface of the face material at the observation position obtained by the above is stored in advance.

  Returning to FIG. 1, the input unit 11 gives result identification information when simulating the pattern of the surface material surface, and also provides light source position data, observation position data, surface material position data, and surface material magnification input by the user. Each piece of data is written and stored in the result data table of the storage unit 23. Further, the input unit 11 reads the light source characteristic data index from the light source information table in the face material database 18 corresponding to the light source characteristic data selected by the user on the selection screen of the display unit 17, and stores it corresponding to the result identification information. The result data table of the unit 23 is written and stored. Also, the input unit 11 corresponds to the pattern image data, gloss image data, and uneven shape data selected by the user on the selection screen of the display unit 17, and the pattern image data index, gloss image data index, uneven shape data index, optical Each characteristic data index is read from the picture information table, the gloss information table, the concavo-convex shape table, and the optical characteristic data in the face material database 18, and written and stored in the result data table of the storage unit 23 corresponding to the result identification information.

  The input unit 11 includes light source characteristic data, light source position data, observation position data, face material position data, face material magnification data, pattern image data, gloss image data, uneven shape data, and optical characteristic data input from an external device or the like. When any, combination, or all change information is input, light source characteristic data, light source position data, observation position data, face material position data, face material magnification data, pattern image data, gloss image data, uneven shape data Each of the optical characteristic data is written in the light source information table, the pattern information table, the gloss information table, the concavo-convex shape table, and the optical characteristic table of the face material database 18 to update and store the data. Further, the light source position data, the observation position data, and the face material position data are written in the result data table of the storage unit 23 to update and store the data. Further, each data change process will be described later.

The image processing unit 13 uses the light source characteristic data, the pattern image data, the glossy image data, and the concavo-convex shape image data selected by the user in the input unit 11 to display an image (pattern visualization) as described below. As the image), pixel data is generated for each of a pattern image reflecting only the pattern image data, a gloss image reflecting only the gloss image data, and a concavo-convex shape image reflecting only the concavo-convex shape image data. In addition, the image processing unit 13 generates pixel data in an image (pattern visualized image) as a combined image of each combination of the pattern image data, the gloss image data, and the uneven shape image data.
FIG. 4 is a diagram illustrating a configuration example of the image processing unit 13 in FIG. The image processing unit 13 includes a normal map generation unit 1301, an incident light calculation unit 1302, a reflected light calculation unit 1303, and a pixel value calculation unit 1304.

  The normal map generation unit 1301 reads the concavo-convex shape data index from the result data table in the storage unit 23, and reads the concavo-convex shape data stored in the face material database 18 using the concavo-convex shape data index. Then, the normal map generation unit 1301 develops the uneven shape data as an embossed film on the surface of the face material, and obtains a normal vector of the uneven surface for each pixel on the screen surface. Here, the uneven shape data may be a normal map itself composed of normal vectors set for each pixel on the surface of the face material. The uneven shape data includes a depth image indicating depth information indicating the depth of the bottom portion of the uneven shape, a height image indicating height information indicating the height of the top portion of the uneven shape, and a three-dimensional space of each pixel of the uneven shape. Either point cloud data indicating the coordinates of or polygon mesh may be used.

  When the concavo-convex shape data is each of the depth image and the height image, a normal vector for each pixel on the surface of the concavo-convex shape is obtained using a general method for obtaining a normal vector from the height image described in Patent Document 1. It will be. Further, when obtaining a normal vector from a point cloud or a polygon mesh, for example, as a general means, a point cloud processing library PCL (Point Cloud Library) is used.

  At this time, the normal map generation unit 1301 projects each normal vector obtained for each pixel in the three-dimensional space forming the uneven surface onto each pixel on the surface of the face material that is a two-dimensional plane. Thus, a normal map indicating the normal vector for each pixel on the face material surface is obtained. Then, the normal map generation unit 1301 writes and stores the obtained normal map in the storage unit 23, and writes the written address as a normal map data index in the result data table of the storage unit 23. Remember.

The incident light calculation unit 1302 uses the light source characteristic data, the light source position data, the surface material position data, the surface material magnification data, the normal map, and the optical property data to generate a pixel on the surface of the surface material (target point) from the emitted light I _i. On the other hand, the irradiance E _i of the incident light is calculated using the following equation (1). d indicates the distance from the light source (light source 1200 described later) to the uneven surface (1001S) of the embossed film.

FIG. 5 is a diagram for explaining the correspondence between the emitted light I _i emitted from the light source and the irradiance E _i inputted to each pixel on the surface of the embossed film. On the surface 100S of the face material 100, there is a pattern data area to which the pattern data is applied, corresponding to the pattern. Further, an embossed film 1001 written with a transparent resin or the like is provided on the surface 100S of the face material 100. In the normal map, a normal vector N is calculated for each pixel forming the concave and convex surface 101S of the embossed film 101, and this normal vector N is projected onto the pixel G ′ on the surface 100S of the face material 100 to obtain a normal line. The vector N ′.
In the equation (1), θ is an angle between the normal vector N and the pixel G and the incident light I _i incident from the light source 200. D is the distance between the light source 200 and the pixel G.

Here, in the present embodiment, the irradiance E _i is calculated using the normal map. For this reason, the incident light I _i actually used in the equation (1) becomes the incident light I _i ′ incident on the pixel G ′ of the surface 100S of the face material 100. Further, the angle θ is an angle θ ′ formed by the normal vector N ′ at the pixel G ′ on the surface 100S of the face material 100 and the incident light I _i ′ incident on the pixel G ′. However, since the thickness D of the embossed film is very small compared to each of the distance d and the distance d ′ (D << d, d ′), the angle α formed by the incident light I _i and the incident light I _i ′. Becomes close to 0, and the error between the angle θ and the angle θ ′ is almost negligible. Above description is the description of the calculation of irradiance E _i of a pixel, the incident light calculating unit 1302 for the other pixels, the calculation of similarly irradiance E _i.
In FIG. 5, reference numeral 300 denotes an observation position where the pattern on the surface 100 </ b> S of the face material 100 is observed.

Returning to FIG. 4, the reflected light calculation unit 1303 calculates the illuminance E _i input to each pixel calculated by the incident light calculation unit 1302 and the light source characteristic data, light source position data, and observation position from the result data table of the storage unit 23. Using the data, the face material position data, the face material magnification data, the pattern image data, the gloss image data, the normal map, and the optical characteristic data, reflection from the respective pixels on the surface 100S of the face material 100 to the observation start point 300 is reflected. The radiance of light _IO is calculated. At this time, the reflected light calculation unit 1303 calculates the radiance I2 of the reflected light using a model formula of a bidirectional reflectance distribution function (BRDF). As a BRDF model formula, Cook-- described in References (A Reflectance Model for Computer Graphics, Robert L. Cook, and Kenneth E. Torrance, ACM SIGGRAPH Computer Graphics 1981, Vol. 15 No. 3) There is a Torrance model.

The pixel value calculation unit 1304 calculates the pixel value d in each pixel from the radiance I ₂ of the reflected light of each pixel calculated by the reflected light calculation unit 1303 by using the following equation (2). f (x) is a function for obtaining the pixel value d from the radiance I _O.

In the above equation (2), f (x) is a function for obtaining the pixel value d from the radiance I _O. Further, α is a scaling coefficient for correcting the characteristics of the display device that constitutes the display screen of the display unit 17 and appropriately displaying the calculated pixel value. If the scaling factor is not multiplied by the radiance, the pixel value actually displayed on the display unit 17 changes depending on the characteristics of each display device.
In the above description, the calculation of the radiance I _O for a single wavelength has been described.
However, when the reflected light calculation unit 1303 targets a plurality of wavelengths, the reflected light calculation unit 1303 calculates the radiance I _{O according} to the following equation (3).

In the above equation (3), I _λ is the radiance of wavelength λ. Therefore, the radiance I _O obtained in the equation (3) is obtained by integrating the radiance I _λ obtained for each wavelength.
In addition, when the result image indicating the pattern of the face material surface is provided as an RGB (Red, Green, Blue) image, the reflected light calculation unit 1303 performs the following processing. That is, the reflected light calculation unit 1303 calculates the pattern image data, the gloss image data indicating the specular reflectance and surface roughness information for each RGB channel, and the radiance E for each RGB channel in the incident light I _i . used to calculate the radiance I _O of the reflected light of each channel of RGB. Further, the reflected light calculating unit 1303, a radiance E for each RGB channels in the incident light I _i, may be used spectral data of the incident light I _i emitted of the light source.

  The pixel value calculation unit 1304 writes and stores the calculated pixel value d of each pixel as image data of the result image in the storage unit 23. Then, the pixel value calculation unit 1304 writes and stores the address at which the image data of the result image is written in the result data table in the storage unit 23 as a result index corresponding to the result identification information. Here, the pixel value calculation unit 1304 converts the image data of the result image into the pattern image storage unit 19 and the concavo-convex shape, respectively. The image storage unit 20, the glossy image storage unit 21, and the composite image storage unit 22 are written and stored.

The display image selection unit 15 reads the result index from the result data table in the storage unit 23. Then, the display image selection unit 15 reads out the image data of the result image from each of the pattern image storage unit 19, the uneven shape image storage unit 20, the glossy image storage unit 21, and the composite image storage unit 22 based on the result index. As a result, the image data of the image is displayed on the display surface.
In the face material database 18, each of the light source information table, the pattern information table, the gloss information table, and the concavo-convex shape table already described in FIG.

  As described above, the image processing unit 13 uses the normal map, the light source characteristic data, the pattern image data, the gloss image data, the concavo-convex shape image data, the optical property data, and the like, and each of the pattern image, the gloss image, and the concavo-convex shape image. Alternatively, in the combined composite image, the radiance of the reflected light from each pixel of each image with respect to the emitted light emitted from the light source is obtained by a predetermined function. Then, the image processing unit 13 calculates a pixel value (for example, gradation of RGB color system) in each pixel in the combined image of each of the pattern image, the glossy image, and the uneven shape image, or a combination thereof.

  That is, the image processing unit 13 uses the normal map read from the storage unit 23 and all the image image data, gloss image data, and optical characteristic data (data of each layer) read from the face material database 18. Then, the pixel value of the combined image (pattern visualized image) of the combination including all of the image image data, the gloss image data, the uneven shape image data, and the optical characteristic data is calculated. This composite image uses the normal map, pattern image data, glossy image data, and optical property data for pixel value calculation, so the finished surface material pattern finish (pattern shape of the surface material pattern) The pattern visualized image is shown. Hereinafter, a composite image which is a pattern visualization image generated using all the information of the normal map and the pattern image data, gloss image data, and optical characteristic data may be referred to as a complete composite image.

  Further, the image processing unit 13 uses the normal map read from the storage unit 23, the pattern image data with uniform diffuse reflectance read from the face material database 18, gloss image data, and optical characteristic data, The pixel value of the composite image as the pattern visualized image is calculated. In this case, since the diffuse reflectance is uniform, a combined image of the uneven shape image data and the gloss image data not including the pattern of the pattern image data is obtained. When the diffuse reflectance in the pattern image data is a uniform numerical value, this numerical value can be arbitrarily set (for example, the diffuse reflectance at all wavelengths is set to 0.5 or the like). By comparing this synthesized image with the completely synthesized image, the influence of the pattern image data on the completed pattern form of the face material, that is, the influence of the pattern on the pattern form can be confirmed. In the present embodiment, the normal line orthogonal to the surface of the face material that is a two-dimensional plane is used as the normal line of the normal map having the same normal line. In the case of a map, the normal line does not need to go straight to the face material surface which is a two-dimensional plane.

Further, the image processing unit 13 visualizes the pattern by using the normal map read from the storage unit 23, the pattern image data read from the face material database 18, the glossy image data having a specular reflectance of 0, and the optical characteristic data. The pixel value of the composite image as an image is calculated. In this case, since the specular reflectance of the gloss image data is set to 0, a combined image of the uneven shape image data and the pattern image data not including the gloss information of the gloss image data is obtained. By comparing this synthesized image with the completely synthesized image, it is possible to confirm the influence of the gloss image data on the completed pattern form of the face material, that is, the influence of the presence or absence of the gloss on the pattern form.
In this embodiment, a glossy image having a specular reflectance of 0 is used as a glossy image having a uniform glossiness. However, if the specular reflectance and surface roughness are uniform, the specular reflectance is 0. It is not limited to the glossy image.

  Further, the image processing unit 13 reads out from the surface material database 18 a normal map made of normals in the same direction as the normal line orthogonal to the surface of the surface material that is a two-dimensional plane and having the same strength. The pixel value of the composite image as the pattern visualized image is calculated from the pattern image data and the gloss image data. In this case, as the normal map used for the calculation, a normal map is used which is in the same direction as the normal normal to the surface of the face material that is a two-dimensional plane and is composed of normals having the same strength. The combined image of the glossy image data and the pattern image data that does not include the unevenness information of the uneven shape image data. By comparing this synthesized image with the completely synthesized image, it is possible to confirm the influence of the concavo-convex shape image data on the finished pattern form of the face material and the influence of the concavo-convex pattern form on the face material.

  The image processing unit 13 also includes a normal map read from the storage unit 23, pattern image data with uniform diffuse reflectance read from the face material database 18, gloss image data with a specular reflectance of 0, and Thus, the pixel value of the image as the pattern visualization image, that is, the uneven shape image is calculated. In this case, the concavo-convex shape image is an image for confirming the pattern form of only the concavo-convex shape of the finished face material because only the normal map affects the calculation for generating the pattern visualization image.

  In addition, the image processing unit 13 includes a normal map perpendicular to the surface of the face material that is a two-dimensional plane and a normal map in which the normal is uniformly the same, gloss image data having a specular reflectance of 0, and a face material database 18. Based on the pattern image data read out from the above, an image as a pattern visualization image, that is, a pixel value of the pattern image is calculated. In this case, the pattern image is an image for confirming the pattern form of only the finished pattern of the face material because only the pattern image data affects the calculation for generating the pattern visualization image.

  Further, the image processing unit 13 reads out from the surface material database 18, a normal map in which normals orthogonal to the surface of the surface material that is a two-dimensional plane are uniformly the same, pattern image data with uniform diffuse reflectance, and the like. Based on the gloss image data, an image as a pattern visualization image, that is, a pixel value of the gloss image is calculated. In this case, the gloss image is an image for confirming the pattern form of only the gloss of the finished face material because only the gloss image data affects the calculation for generating the pattern visualization image.

In the description of the present embodiment, the normal line orthogonal to the surface of the face material that is a two-dimensional plane is used as the normal map that is composed of vector normal lines having the same direction and the same intensity. If the normal map is composed of normal lines having strength, the normal lines are not limited to normal lines orthogonal to the surface of the face material that is a two-dimensional plane.
Further, gloss image data having a specular reflectivity of 0 is used as gloss image data having a uniform gloss. If the specular reflectivity and surface roughness are uniform, a gloss image having a specular reflectivity of 0 is used. Instead of data, other gloss image data having a specular reflectance with a uniform gloss value may be used.

  Also, the image processing unit 13 stores the pixel data of each of the combined image of the pattern image, the glossy image, and the uneven shape image, or the combined image, which is the obtained pattern visualization image, with image data identification information, and stores the pattern image The image is written and stored in each of the unit 19, the uneven shape image storage unit 20, the glossy image storage unit 21, and the composite image storage unit 22. The image data identification information includes information indicating whether the pattern visualized image is a pattern image, a gloss image, a concavo-convex image, or a composite image.

  The display area setting unit 14 sets an image display control unit, which will be described later, at a position where a display area that displays a pattern visualized image of any one of a pattern image, an uneven shape image, a glossy image, and a composite image is set in advance. 16 is arranged. At this time, when the display area setting unit 14 displays any one of the pattern image, the uneven shape image, the glossy image, and the composite image on the display screen of the display unit 17, the display area has a uniform size on the display screen. The size of the display area is adjusted so as to be arranged.

  The display image selection unit 15 selects a pattern visualization image to be displayed in the display area arranged by the display area setting unit 14 from a pattern image, a concavo-convex shape image, a glossy image, and a composite image. Here, the display image selection unit 15 is information (including image data identification information) indicating which one of the pattern image, the concavo-convex shape image, the glossy image, and the composite image supplied via the input unit 11 is selected. Thus, a pattern visualization image to be displayed in the display area is selected. That is, the user sets a display area for displaying an image using the input means, and selects any one of a pattern image, a concavo-convex shape image, a glossy image, and a composite image as a pattern visualization image to be displayed in the set display area. Here, the pattern visualization image selected by the input means for display in the display area is configured to be displayed on the display screen 100 as a character string or image information by the display image selection unit 15. (Not shown). At this time, the character string or image information displayed on the display screen 100 is associated with image data identification information of each pattern visualized image.

The image display control unit 16 displays an image selected by the display image selection unit 15 from a pattern image, which is a pattern visualization image, an uneven shape image, a glossy image, and a composite image (each layer forming the pattern visualization image) in a predetermined display area. To do. Here, the image display control unit 16 enlarges or reduces each of the pattern image, the concavo-convex shape image, the glossy image, and the composite image in accordance with the control of the display size of the user or the actual size of the face material. The number of pixels to be displayed is controlled in accordance with the resolution of the display screen so that the image is displayed in the display area. Further, the image display control unit 16 controls the color of a display screen area (background area 110B described later) other than the display area and the operation display area for performing operation input.
The display unit 17 is composed of, for example, a liquid crystal display device formed of a liquid crystal panel.

Hereinafter, the operation of the face material pattern finish simulation system in the first embodiment will be described using the operation screen displayed on the display unit 17.
FIG. 6 shows an example of the operation screen of the face material pattern finish simulation system in the first embodiment of the present invention. In FIG. 6, a display screen 100 is a display screen of the display unit 17. An image pattern visualized image is displayed in one display area 110 on the display screen 100. The display area setting unit 14 displays each of the buttons 111, 112, and 113 that are operation display buttons (layer unit selection area in the total selection area) in the vicinity of the display area 110. The operation display button can be switched on and off, and can be switched from the non-selected state to the selected state and from the selected state to the non-selected state each time it is clicked.

The button 111 is used to instruct the normal map to be reflected on the pattern visualization image displayed in the display area 110. The image display control unit 16 displays the characters “normal map” on the side of the button 111 in order to teach the button 111 to reflect the normal map.
The button 112 is used to instruct to reflect the pattern image on the pattern visualization image displayed in the display area 110. The image display control unit 16 causes the button 112 to display a character “picture image” in order to teach the button 112 to reflect the picture image next to the button 112.
The button 113 is used to instruct to reflect the glossy image on the pattern visualized image displayed in the display area 110. The image display control unit 16 displays “glossy image” characters in order to teach the button 113 to reflect the glossy image on the side of the button 113.

In FIG. 6, each of the button 111, the button 112, and the button 113 is selected, and a completely synthesized image is displayed in the display area 110 as a pattern visualization image that reflects the normal map, the pattern image data, and the gloss image data. ing.
When the user selects each of the button 111, the button 112, and the button 113, the input unit 11 outputs the type of the selected button to the display image selection unit 15. As a result, the display image selection unit 15 selects the image to be displayed as the completely synthesized image as the pattern visualization image, and reads the result index of the corresponding completely synthesized image from the result data table in the storage unit 23. Then, the display image selection unit 15 reads the complete composite image from the composite image storage unit 22 based on the result index, and displays the read complete composite image on the display area 110 of the display unit 17 via the image display control unit 16. .

FIG. 7 shows an example of the operation screen of the face material pattern finish simulation system in the first embodiment of the present invention. In FIG. 7, the same components as those in FIG. 6 are denoted by the same reference numerals. In FIG. 7, each of the button 111 and the button 113 is selected, the normal map and the gloss image data are reflected, and the composite image is displayed in the display area 110 as a pattern visualized image that does not reflect the pattern image data. It is displayed.
Each of the button 111, the button 112, and the button 113 is a switching button, and is switched on (selected) and off (non-selected) each time it is selected.

  When all of the buttons 111, 112, and 113 in FIG. 6 are selected, when the user clicks the button 112, the button 112 transitions from the selection in FIG. 6 to the non-selection in FIG. Switch from a state where data is reflected to a state where data is not reflected. Thereby, the input unit 11 detects that the button 112 is not selected, and the normal map button 111 and the gloss image data button 113 are selected for the display image selection unit 15. To be notified.

  The display image selection unit 15 selects, as an input from the input unit 11, a pattern visualized image on which a normal map and glossy image data are reflected as a pattern visualized image, and displays a corresponding composite from the result data table of the storage unit 23. The result index of the image (reflecting the normal map and glossy image data) is read. Then, the display image selection unit 15 reads the composite image from the composite image storage unit 22 based on the result index, and displays the read composite image in place of the displayed complete composite image via the image display control unit 16. Displayed in the display area 110 of the unit 17.

  FIG. 8 shows an example of the operation screen of the face material pattern finish simulation system in the first embodiment of the present invention. In FIG. 8, the same components as those in FIG. 6 are denoted by the same reference numerals. In FIG. 8, each of the button 112 and the button 113 is selected, the design image data and the gloss image data are reflected, and a composite image is displayed in the display area 110 as a pattern visualization image that does not reflect the normal map. It is displayed.

  When all of the button 111, button 112, and button 113 in FIG. 6 are selected, when the user clicks the button 111, the button 111 transitions from the selection in FIG. 6 to the non-selection in FIG. The map is switched from being reflected to not being reflected. Thereby, the input unit 11 detects that the button 111 is not selected, and the design image data button 112 and the gloss image data button 113 are selected for the display image selection unit 15. To be notified.

  The display image selection unit 15 selects a composite image reflecting the pattern image data and the gloss image data as a pattern visualized image to be displayed by input from the input unit 11, and selects a corresponding composite image from the result data table of the storage unit 23. The result index of the image (reflecting the pattern image and glossy image data) is read. Then, the display image selection unit 15 reads the composite image from the composite image storage unit 22 based on the result index, and displays the read composite image in place of the displayed complete composite image via the image display control unit 16. Displayed in the display area 110 of the unit 17.

  FIG. 9 shows an example of the operation screen of the face material pattern finish simulation system in the first embodiment of the present invention. In FIG. 9, the same components as those in FIG. 6 are denoted by the same reference numerals. In FIG. 9, each of the button 111 and the button 112 is selected, the normal map and the design image data are reflected, and the composite image is displayed in the display area 110 as a pattern visualization image that does not reflect the glossy image data. It is displayed.

  When all of the button 111, button 112, and button 113 in FIG. 6 are selected, when the user clicks the button 113, the button 113 transitions from the selection in FIG. 6 to the non-selection in FIG. 9, that is, a glossy image. Switch from a state where data is reflected to a state where data is not reflected. Thereby, the input unit 11 detects that the button 113 is not selected, and the normal map button 111 and the pattern image data button 112 are selected for the display image selection unit 15. To be notified.

  The display image selection unit 15 selects a composite image reflecting the normal map and the pattern image data as a pattern visualized image to be displayed by input from the input unit 11, and selects a corresponding composite image from the result data table of the storage unit 23. The result index of the image (reflecting the normal map and the pattern image data) is read out. Then, the display image selection unit 15 reads the composite image from the composite image storage unit 22 based on the result index, and displays the read composite image in place of the displayed complete composite image via the image display control unit 16. Displayed in the display area 110 of the unit 17.

Here, when switching the image displayed in the display area 110, the image display control unit 16 does not change the position of each pixel of the image in the display area 110, that is, even if the image transitions, Each pixel is displayed at the same position.
As described above, according to the present embodiment, the appearance of each of the pattern visualized images reflecting each of the normal map, the pattern image data, and the gloss image data is observed by comparing the same portion in pixel units. Can do. Thereby, according to the present embodiment, how the normal map, the pattern image data, and the gloss image data each affect the appearance of the face material, the influence at each same place of the pattern visualized image, The entire image displayed in the display area 110 can be observed.

In addition, according to the present embodiment, the pattern visualization image is displayed by switching the data reflected by the button so that each pixel is in the same position in the same display area 110, so the same place is confirmed. Thus, it is easy to observe changes in appearance due to the reflection of the normal map, the pattern image data, and the gloss image data, and the influence can be easily detected.
In addition, according to the present embodiment, since the data reflected by the button is switched, it is possible to prevent the gaze point from moving when switching the data, thereby making it difficult to detect the influence, and confirm the same point completely. Thus, the influence on the appearance of each layer of the normal map, the pattern image data, and the gloss image data can be easily observed.

In the present embodiment, pattern visualization images of a pattern image, a concavo-convex shape image, a glossy image, and a composite image are obtained in advance, and corresponding to the selection of the button 111, button 112, and button 113 selected by the user, The display area 110 is configured to be displayed, but each time the button 111, the button 112, and the button 113 are selected, a pattern visualized image corresponding to the selected data is generated and displayed on the display area 110. Also good.
In the present embodiment, the displayed pattern visualized image may be reduced and enlarged. For example, when an arbitrary image part is designated in the display area 110, the image part designated in the range is enlarged and displayed in the entire display area 110, and is reduced when the display area 110 is clicked.

  Further, in the present embodiment, as shown in each of FIGS. 6 to 9, only one switching button is provided without providing the button 111, the button 112, and the button 113, and each time this switching button is selected, You may comprise so that the pattern visualization image displayed on the display area 110 may be switched sequentially. For example, when the switching button is selected while nothing is displayed, the input unit 11 outputs to the display image selection unit 15 that the switching button has been selected. Accordingly, since the display image selection unit 15 is the first selection, the first layer uneven shape image is selected as a pattern visualization image to be displayed in the display region 110. Then, the display image selection unit 15 reads the concavo-convex shape image from the concavo-convex shape image storage unit 20 and displays it on the display area 110 via the image display control unit 16.

  When the switch button is selected again, the display image selection unit 15 makes the second selection, so that the uneven image having the second pattern image superimposed on the uneven image and the pattern image image are displayed. The composite image is selected as a pattern visualization image to be displayed in the display area 110. Then, the display image selection unit 15 reads a composite image of the uneven shape image and the pattern image image from the composite image storage unit 22 and displays the composite image on the display area 110 via the image display control unit 16. Further, when the switching button is selected again, the display image selection unit 15 displays the complete composite image in which all three layers of the concavo-convex shape image, the pattern image image, and the glossy image are overlapped because of the third selection. A pattern visualized image to be displayed in the area 110 is selected. Then, the display image selection unit 15 reads the complete composite image from the composite image storage unit 22 and displays it on the display area 110 via the image display control unit 16.

In addition, when the complete composite image is displayed in the display area 110, when the switching button is selected for the fourth time, the gloss image is not reflected from the complete composite image, and the unevenness in which the pattern image overlaps the uneven shape image. A composite image of the shape image and the pattern image image is selected as a visualized image displayed in the display area 110. Further, when the switching button is selected for the fifth time, a concavo-convex shape image that does not reflect a pattern image is selected as a visualized image displayed in the display area 110 from a composite image of the concavo-convex shape image and the pattern image image. . Further, when the switching button is selected for the fifth time, the display area 110 is switched to a gray display or the like that is reset to the zeroth time and no pattern visualized image is selected.
At this time, nothing is displayed, and thereafter, the above-described processing is repeated every time the switching button is selected.

  In this embodiment, a method of creating a pattern visualization image made up of pattern image data (pattern layer) and glossy image data (embossed film) in the simulation is shown, but in addition to the pattern layer and the embossed film, a mat coat layer, etc. A face material in which a coating is used can be considered. At that time, a simulation image of the pattern of the face material is created using the optical characteristic information of each layer stored in the face material database 18. Transmission and attenuation can be calculated using Lambert-Beer's law, and scattering can be calculated using plane-parallel theory. As a result, it is possible to obtain an image that reproduces the appearance of blur due to transmission / attenuation or scattering of the pattern in each layer.

According to the present embodiment, the pattern visualized image displayed in the display area 110 is arbitrarily switched between an image of another layer or a composite image in which layers are superimposed with the pixels of the pattern visualized image being in the same position. Display, it becomes possible to compare the face material pattern finish (pattern form) in the same place of the pattern visualized image, and the influence on the face material pattern of each layer can be easily confirmed.
In addition, according to the present embodiment, since each of the operation display buttons can be switched on and off like a switch, always look at the same region of the pattern visualized image whose layer has been changed, and click only the button of the layer to be turned on / off. Alternatively, by touching, the same region of the pattern visualized image in which the layer is changed can be always watched without checking the button for operation, and the influence on the face material pattern of each layer can be easily confirmed.

<Second Embodiment>
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.
FIG. 10 is a block diagram showing an example of the configuration of a face material pattern finish simulation system according to the second embodiment of the present invention. 10, the face material pattern finish simulation system 1A includes an input unit 11, an image processing unit 13, a display area setting unit 14, a display image selection unit 15, an image display control unit 16, a display unit 17, a surface material database 18, and a picture. Each of the image storage unit 19, the concavo-convex shape image storage unit 20, the gloss image storage unit 21, the composite image storage unit 22, the storage unit 23, and the editing unit 24 is provided. In FIG. 10, the same components as those in the first embodiment are denoted by the same reference numerals. Hereinafter, configurations and operations different from those of the first embodiment will be described.

The editing unit 24 changes the concavo-convex shape data, for example, edits that adjust the normal map by changing the distance between the top and bottom, edits that adjust the diffuse reflectance of the pattern image data, and specular reflectance of the glossy image data. Do each of the edits you want to adjust. The ratio of the adjustment is determined by settings that are made by the user when editing.
In addition, the image processing unit 13 uses the uneven shape data, diffuse reflectance, and glossy image data adjusted by the editing unit 24 to perform the pattern visualization image displayed in the display area 110 by the image processing described in the first embodiment. (A pattern image, a concavo-convex shape image, a glossy image, or a composite image) is regenerated. Then, the image display control unit 16 displays the regenerated pattern visualized image by overwriting the image already displayed in the display area 110.
Further, the image processing unit 13 overwrites the regenerated pattern visualized image on the corresponding image before editing in the pattern image storage unit 19, the uneven shape image storage unit 20, the gloss image storage unit 21, and the composite image storage unit 22. , Replace with the regenerated visualization image.

  FIG. 11 shows an example of the operation screen of the face material pattern finish simulation system in the second embodiment of the present invention. In FIG. 11, on the display screen 100, in addition to the buttons 111, 112, and 113, which are the operation display buttons in the first embodiment, each of the buttons 121_1, 122_1, and 123_1 that are operation display buttons. And sliders 121_2, 122_2, and 123_2, which are adjustment sliders, are provided. Each of the button 111, button 112, button 113, button 121_1, button 122_1, and button 123_1 and each of the slider 121_2, slider 122_2, and slider 123_2 are displayed in the vicinity of the display area 110 of the display screen 100 by the display area setting unit 14. Is displayed.

Since each of the button 111, the button 112, and the button 113 is the same as that of the first embodiment, the description thereof is omitted.
The button 121_1 is used to set whether or not to adjust the uneven shape (normal map) of the pattern visualized image displayed in the display area 110. The image display control unit 16 displays the characters “normal map” because the button 121_1 teaches the button 121_1 as a button for adjusting the uneven shape (normal map) to the side of the button 121_1. The slider 121_2 is provided, for example, as means for adjusting a reduction ratio / magnification ratio that is multiplied by a preset distance between the top and bottom of the concavo-convex shape.

  The button 122_1 is used to set whether or not to adjust the diffuse reflectance that is the pattern image data of the pattern visualized image displayed in the display area 110. The image display control unit 16 displays the characters “picture image” in order to teach the button 122_1 to adjust the diffuse reflectance, which is the picture image data, to the side of the button 122_1. The slider 122_2 is provided, for example, as means for adjusting a reduction ratio / magnification ratio that is multiplied by a preset numerical value of the diffuse reflectance in the pattern image.

  The button 123_1 is used to set whether or not to adjust the specular reflectance that is the glossy image data of the pattern visualized image displayed in the display area 110. The image display control unit 16 displays “glossy image” characters in order to teach the button 123_1 to adjust the specular reflectance, which is glossy image data, to the side of the button 123_1. The slider 123_2 is provided, for example, as means for adjusting a reduction ratio / magnification ratio by multiplying a preset numerical value of diffuse reflectance in a glossy image.

  As described above, since the button 111 and the button 112 are selected in FIG. 11, a composite image of the uneven shape image and the pattern image is displayed in the display area 110 by the image display control unit 16. That is, a composite image of the concavo-convex shape image and the pattern image, in which the concavo-convex shape image data and the design image data are reflected and the glossy image data is not reflected, is displayed in the display area 110.

  Further, since the button 121_1 is selected in the editing process, it is set to edit the normal map in the composite image of the uneven shape image displayed in the display area 110 and the pattern image. For this reason, the image processing unit 13 adjusts the distance by multiplying the distance by the reduction ratio and the enlargement ratio adjusted by the slider 121_1 with respect to the distance between the top and bottom in the preset uneven shape data. A normal map corresponding to the distance is generated, and a composite image of the newly generated normal map and the concavo-convex shape image reflecting the diffuse reflectance and the pattern image is generated. Then, the image display control unit 16 overwrites the image displayed in the display area 110 and displays the composite image of the uneven shape image and the pattern image regenerated as a result of editing the uneven shape data.

In the state of FIG. 11, since the button 122_1 is not selected, the input unit 11 does not input data from the slider 122_2 to the editing unit 24 even if the slider 122_2 is adjusted. Adjustment of the pattern image data of the displayed visualized image is not performed.
Also, regarding the glossy image data, since the button 123_1 is not selected, the input unit 11 does not input data from the slider 122_2 to the editing unit 24 as in the case of the pattern image data. In addition, since the button 113 is not selected, the gloss image data is not edited anyway.
As described above, when the button 121_1, the button 122_1, and the button 123_1 are not selected, the input unit 11 inputs the reduction ratio and the enlargement ratio as adjustment amounts even if the sliders 121_2, 122_2, and 123_2 are operated. Do not do.

  FIG. 12 shows another example of the operation screen of the face material pattern finish simulation system in the second embodiment of the present invention. In FIG. 12, the display screen 100 includes buttons 111, 112, and 113, which are operation display buttons in the second embodiment, and buttons 121_1, 122_1, and 123_1, which are operation display buttons. Each and the adjustment pad area 130 are displayed in the vicinity of the display area 110 of the display screen 100 by the display area setting unit 14. In the vicinity of each of the buttons 121_1, 122_1, and 123_1, “normal (normal map)”, “picture (picture image)”, “light (glossy image)” is used to teach the adjustment target of each button. "Are displayed by the image display control unit.

In FIG. 12, an adjustment pad region 130 is provided in place of each of the slider 121_2, the slider 122_2, and the slider 123_2 in the second embodiment of FIG.
One of the buttons 121_1, 122_1, and 123_1 is selected, and data corresponding to any of the selected button 121_1, button 122_1, and button 123_1 is adjusted.
For example, in FIG. 12, since the button 121_1 is selected, the concavo-convex shape image is selected as the selection target, and when the observer moves the finger in the adjustment pad region 130, the top and bottom portions in the concavo-convex shape are displayed. The reduction ratio / enlargement ratio for adjusting the distance is adjusted. Then, the pattern visualized image regenerated by the adjusted normal map is displayed in the display area 110. That is, the input unit 11 outputs the reduction rate / enlargement rate data input from the adjustment pad area 130 to the editing unit 24 together with information indicating that the selected button is adjusted. Thereby, the editing unit 24 adjusts any one of the uneven shape image data, the pattern image data, and the glossy image data according to the information supplied from the input unit 11.
Further, each of the slider 121_2, the slider 122_2, and the slider 123_2 in FIG. 11 may be changed to the adjustment pad region 130 described above. In this case, the editing operation is the same as the processing described in FIG.

FIG. 13 shows another example of the operation screen of the face material pattern finish simulation system in the second embodiment of the present invention. In FIG. 13, in place of each of the slider 121_2, slider 122_2, and slider 123_2 in the second embodiment of FIG. 11, an adjustment pad region 131, a button 121_3 that is an operation display button, a button 122_3, and a button 123_3 are provided. It has been. In the adjustment pad area 131, each of the data coordinate axis 131A and the adjustment coordinate point 131B is displayed.
Both the vertical axis and the horizontal axis of the data coordinate axis 131A indicate a reduction ratio and an enlargement ratio as adjustment amounts for performing data adjustment. The adjustment coordinate point 131B is at an arbitrary coordinate point on the adjustment amount plane, which is a two-dimensional plane of the adjustment amount on the vertical axis and the adjustment amount on the horizontal axis, by user adjustment (for example, moving with a finger).

  In addition, by selecting any one of the button 121_1, the button 122_1, and the button 123_1, an object to adjust any of the uneven shape image data, the pattern image data, and the gloss image data corresponding to the selected button. And whether the adjustment amount of the target data indicates the vertical axis of the data coordinate axis 131A is set. Further, by selecting any one of the button 121_3, the button 122_3, and the button 123_3, an object to adjust any one of the uneven shape image data, the pattern image data, and the glossy image data corresponding to the selected button. And whether the adjustment amount of the target data indicates the vertical axis of the data coordinate axis 131A is set.

  In FIG. 13, the button 121_1 is selected corresponding to the vertical axis of the data coordinate axis 131A, and the button 122_3 is selected corresponding to the horizontal axis of the data coordinate axis 131A. Thereby, the vertical axis corresponds to the adjustment amount of the uneven shape image data, and the horizontal axis corresponds to the adjustment amount of the pattern image data. Therefore, when the user moves the adjustment coordinate point 131B in the adjustment pad region 131, the uneven shape image data is adjusted when the adjustment coordinate point 131B is moved parallel to the vertical axis, while the pattern image is adjusted when the user moves the adjustment coordinate point 131B parallel to the horizontal axis. Data is adjusted. Further, when the user arbitrarily moves the adjustment coordinate point 131B on the adjustment amount plane in the adjustment pad area 131, the coordinate on the vertical axis of the adjustment coordinate point 131B becomes the adjustment amount of the uneven shape image, and the coordinate on the horizontal axis. Is the adjustment amount of the pattern image data.

Next, an operation of generating a pattern visualized image including data editing in the face material pattern finish simulation system 1A according to the present embodiment will be described using a flowchart. FIG. 14 is a flowchart showing an operation example of processing for generating image data of a pattern visualized image in the face material pattern finish simulation system of the present embodiment.
Step S1:
The user selects, for example, the types of light source characteristic data, pattern image data, glossy image data, and uneven shape data displayed on the display unit 17 using the input unit 11.
In addition, the user inputs, for example, observation position data, light source position data, and face material position data into an input field displayed on the display unit 17 from an input unit such as a keyboard.

  Through the above-described user processing, the input unit 11 causes the input light source characteristic data, pattern image data, glossy image data, and uneven shape data, light source characteristic data, pattern image data index, glossy image data index, and uneven shape data. Each index is read from the light source information table, the pattern information table, the gloss information table, and the concavo-convex shape table in the face material database 18. Then, the input unit 11 writes and stores the read light source characteristic data, pattern image data index, gloss image data index, and uneven shape data index in the result table of the storage unit 23. Further, the input unit 11 writes and stores each of the observation position data, the light source position data, and the face material position data input to the input field of the display unit 17 in the result table of the storage unit 19.

Step S2:
The image processing unit 13 reads the uneven shape data index from the result data table in the storage unit 23, and reads the uneven shape data stored in the face material database 18 using the uneven shape data index.
Then, the image processing unit 13 develops the uneven shape data as an embossed film on the surface of the face material, and obtains a normal vector of the uneven surface for each pixel on the screen surface. The image processing unit 13 writes and stores the obtained normal vector for each pixel, that is, a normal map in which the normal vector is associated with each pixel coordinate in the storage unit 23. Further, the image processing unit 13 writes and stores the address at which the normal map in the storage unit 23 is written as a normal map data index in the result data table of the storage unit 23.
When the concavo-convex shape data is a normal map, the normal map is written and stored in the storage unit 23.

Step S3:
The image processing unit 13 reads the normal map data index from the result data table in the storage unit 23. Thereby, the incident light calculation unit 14 reads the normal map from the storage unit 23 based on the normal map data index. Further, the image processing unit 13 reads light source characteristic data, light source position data, and face material position data from the result data table of the storage unit 23. In addition, the image processing unit 13 reads the expression (1) from the storage unit 23.
From the light source characteristic data, the light source position data, the face material position data, and the normal map, the image processing unit 13 emits irradiance E of light incident on each pixel (target point) on the face material surface from the emitted light I _i. Is calculated using equation (1). Then, the image processing unit 13 writes and stores the irradiance E of the incident light obtained for each pixel in the storage unit 23.

Step S4:
The image processing unit 13 reads the normal map data index from the result data table in the storage unit 23. Thereby, the image processing unit 13 reads the normal map from the storage unit 23 based on the normal map data index. In addition, the image processing unit 13 reads the calculated irradiance E input to each pixel from the storage unit 23. The image processing unit 13 reads the light source characteristic data, the light source position data, the observation position data, the face material position data, the picture image data index, and the glossy image data index from the result data table of the storage unit 23. The image processing unit 13 reads the pattern image data and the glossy image data from the face material database 18 using the pattern image data index and the glossy image data index, respectively.

Then, the image processing unit 13 uses the light source characteristic data, the light source position data, the observation position data, the face material position data, the pattern image data, the gloss image data, and the normal map to model the bidirectional reflectance distribution function. The radiance I _O of the reflected light at the observation position 300 from each pixel on the surface 100S of the face material 100 is calculated by the equation.
At this time, the image processing unit 13 reads the normal map read from the storage unit 23 or one of two types of normal maps, that is, a normal map with a uniform normal, and the surface material database 18. The pattern image data read from the pattern image data or the pattern image data of any one of the two types of pattern image data having uniform diffuse reflectance, and the gloss image data read from the face material database 18 or the gloss is the same. The radiance I _O of reflected light is calculated for eight combinations of gloss image data of any one of two types of gloss image data.

Step S5:
The image processing unit 13 reads from the storage unit 23 each of the equation (2) and the radiance I _O of the reflected light at each pixel.
Then, the image processing unit 13 calculates the pixel value of each pixel that is visible from the observation position by using Equation (2) from the radiance I _O of the reflected light of each pixel at the calculated observation position. The editing unit 24 uses the pixel value d of each pixel calculated by the image processing unit 13 as the image data of the pattern visualized image, and associates it with the reflected layers of the pattern image data, the glossy image data, and the normal map. The pattern image storage unit 19, the uneven shape image storage unit 20, the glossy image storage unit 21, and the composite image storage unit 22 are written and stored. Then, the editing unit 24 writes and stores the address at which the image data of the pattern visualized image is written in the result data table in the storage unit 23 as a result index corresponding to the result identification information.

Step S6:
The display unit 17 reads out the result index from the result data table of the storage unit 23, and from this result index, each of the pattern image storage unit 19, the uneven shape image storage unit 20, the glossy image storage unit 21, and the composite image storage unit 22. A normal map, pattern image data, gloss image data, or a composite image calculated for a combination thereof is read as pattern visualized image data, and any one is read out, and the image data of the pattern visualized image is displayed on the display surface. On the other hand, the display is as shown in FIGS.
11, 12, and 13, the pattern visualized image displayed in the display area 110 is read from the storage unit 23, the pattern image data read from the face material database 20, and the face material database 20. A pattern visualized image in which a pixel value d is calculated from the read glossy image data is shown.
As in the first embodiment, the display unit 17 is created using calculation information in which one or more pieces of information of a normal map, pattern image data, and glossy image data are spatially uniform. It can be switched to a visualized image and displayed.

Step S7:
The user observes the pattern visualized image displayed in the display area 110 of the display unit 17 and determines whether a desired pattern form (appearance) is obtained. When the pattern form of the pattern visualized image is a desired form, the user uses the input unit to control the face material pattern finish simulation system 1A to finish the process of designing the face material to be embossed.
On the other hand, when the user confirms that the pattern visualized image displayed in the display area 110 of the display unit 17 is not in the desired pattern form, the process proceeds to step S8.

Step S8:
The user inputs each of the light source characteristic data, the light source position data, the observation position data, and the face material position data to the editing section (not shown) of the display unit 17, and the operation display button or the adjustment pad area described above. In the above, any or a combination of the pattern image data, the gloss image data, and the uneven shape data, or the adjustment amount of all the data is changed. Thus, when the editing unit 24 detects that data has been input, the editing unit 24 advances the process to step S3 in order to regenerate a pattern visualization image displayed in the display area 110 by simulation of the pattern finish.

  As described above, in the present embodiment, parameters for determining the pattern form (appearance) based on the embossed uneven shape such as the uneven shape data, the pattern image data, and the gloss image data and the pattern applied to the surface of the face material. (Light source characteristic data, light source position data, observation position data, face material position data, pattern image data, glossy image data, uneven shape data, etc.) are adjusted, and the pattern of the face material pattern is simulated by simulation of the pattern finish. By comparing the pattern, the pattern form obtained by removing the shadow effect from the face material pattern, and the pattern visualized image that visualizes the pattern form obtained by removing the effect from the pattern from the face material pattern, the uneven shape and the pattern are The influence on the form can be easily grasped.

Returning to FIG. 10, when the change of the pixel value is input from the user via the input unit 11 in step S8 of the flowchart of FIG. 13 described above, the editing unit 24 finishes the pattern as described above. The simulation is performed again, and the pattern visualization image is regenerated.
At this time, the display screen of the display unit 17 is operated by an operation display button, an adjustment pad area, or keyboard input as an operation means for changing the uneven shape data, the pattern image data, and the gloss image data. The changed data in the operation means is input by the editing unit 224 via the input unit 11 and reflected in the result data table of the storage unit 23.

Enlargement and reduction of the concavo-convex shape in the direction perpendicular to the two-dimensional surface composed of the x-axis and the y-axis is performed by changing the pixel value of the normal map representing the normal vector N in each pixel of the face material.
The normal vector N _d obtained by enlarging or reducing the concavo-convex shape in the direction perpendicular to the two-dimensional surface composed of the x-axis and the y-axis described above is heightened from the normal map by the image processing unit 13 (normal map generation unit 1301). After the image is created and the height in the height image is changed using the magnification, a normal map is created from the height image, and is reflected by writing it in the result data table of the storage unit 23 and storing it.
For example, the normal map can be obtained by the method described in the literature (The Variational Approach to Shape from Shading, Berthold KP Horn, and Michael J. Brooks, Computer Vision, Graphics, and Image Processing 1986, Vol.33 No.2). Height images can be created from

When the user instructs the change of the light source position via the input section 11 from the edit column, as already described, the image processing unit 13 re-simulates the pattern finish and regenerates the pattern visualized image. I do.
In particular, when the input means is a pointing device such as a mouse or a touch pad, the pointing device such as a slider or an adjustment pad area on the screen of the display unit 17 is adjusted similarly to the adjustment of data such as the picture image data described above. Depending on the amount of movement, the light source position may be moved in the x-axis and y-axis directions described above. Movement amount m _h of the left and right pointing device on the display _unit, the upper and lower movement amount m _v and moving front of the light source position x, y, the following equation (4) a-z, (5) and (6), moving The subsequent light source positions x _d , y _d and z _d are calculated. _mh is negative when moving to the left of the display unit and positive when moving to the right. Further, m _v is positive when moving onto the display unit direction and negative when moving downward.

In the above description, an example of adjusting the movement amounts m _h and m _v of the light source position with respect to the movement of the light source position with respect to the face material in the simulation of the face material finish has been shown. However, the method of specifying the movement amount of the light source position is not limited to this method, and the movement amount may be directly specified by a numerical value on the editing field on the display screen of the display unit 17 with a keyboard or the like. Also, instead of moving the light source position by the amount of movement, for example, by dragging and dropping the light source with a pointing device such as a mouse, the light source position on the display screen is moved, or the destination position of the light source position ( Coordinates) may be input to the edit field, and the light source positions x _d , y _d , and z _d may be directly specified.

According to the present embodiment, as in the first embodiment, the pattern visualized image displayed in the display area 110 is arbitrarily selected as an image of another layer or with the pixels of the pattern visualized image at the same position. By switching and displaying the composite image with the layers superimposed, it is possible to compare the surface material pattern finish (pattern form) at the same place in the pattern visualization image, and easily check the influence of each layer on the surface material pattern Can do.
In addition, according to the present embodiment, as in the first embodiment, each of the operation display buttons can be switched on and off like a switch, so that the on / off operation is performed in a state where a predetermined portion of the pattern visualized image in the display area is watched. By clicking or touching only the button of the layer you want, you can always look closely at the same area of the pattern visualization image where the layer has been changed without checking the button for operation, and easily influence the surface pattern of each layer Can be confirmed.

Further, according to the present embodiment, by selecting any one or a combination of the uneven shape image data, the pattern image data, and the gloss image data of the pattern visualized image as an adjustment target, the pattern visualized image in the display area Since the adjustment amount of the adjustment target can be changed by the adjustment means (slider, adjustment pad area) in a state where the predetermined portion is closely watched, the same area of the pattern visualized image in which the adjustment target data is adjusted is always watched. Thus, the effect of the adjustment amount of each layer on the face material pattern can be easily confirmed.
Therefore, according to the present embodiment, in the display area 110 of the display unit 17, the pattern visualized image created by the other calculation information is displayed at the same pixel position as the pattern visualized image. By doing so, it becomes possible to compare the appearance of the face material pattern of the pixel with the face material, excluding the influence of various information (pattern image data, concavo-convex shape image data, gloss image data). It is easy to make detailed edits to suit your needs.

In addition, according to the present embodiment, the appearance (pattern form) of the face material pattern, the appearance obtained by removing the effect of the shadow from the pattern form of the face material, and the appearance obtained by removing the effect of the pattern from the face material pattern are visualized. By comparing the obtained images, it becomes easy to grasp the influence of the uneven shape and the pattern on the pattern, and the time and cost required for designing the face material can be reduced.
Further, according to the present embodiment, by using an apparatus having a high processing speed, the light source position is moved by the above-described pointing device, and each of the uneven shape image data, the pattern image data, and the gloss image data is adjusted. Thus, the pattern form can be continuously changed and observed, and it becomes easier to grasp the influence of each of the concavo-convex shape image data, the pattern image data, and the gloss image data on the pattern form. The time and cost required can be reduced.

1 and 10 according to the present invention, a program for realizing the functions of each of the face material pattern finish simulation systems 1 and 1A is recorded on a computer-readable recording medium and recorded on the recording medium. You may perform the process of the simulation of the pattern of the surface material to which embossing is performed by reading a program into a computer system and executing it. Here, the “computer system” includes an OS and hardware such as peripheral devices.
The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 1,1A ... Surface material pattern finish simulation system 11 ... Input part 13 ... Image processing part 14 ... Display area setting part 15 ... Display image selection part 16 ... Image display control part 17 ... Display part 18 ... Surface material database 19 ... Picture image Storage unit 20 ... Concave and convex shape image storage unit 21 ... Glossy image storage unit 22 ... Composite image storage unit 23 ... Storage unit 1301 ... Normal map generation unit 1302 ... Incident light calculation unit 1303 ... Reflected light calculation unit 1304 ... Pixel value calculation unit

Claims (11)

In a face material composed of a plurality of layers including a pattern, uneven shape, and gloss information, the face material pattern finish simulation system displays a pattern visualization image showing the finish of the pattern made of the pattern, the uneven shape, and the gloss. ,
An image processing unit for generating any one of the layers composed of each of the pattern image data, the uneven shape image data, and the gloss image data, or the superimposed pattern visualization image;
A display image selection unit for selecting a pattern visualization image corresponding to the layer or the superposition of the layers from the generated pattern visualization image;
An image display control unit that switches the displayed image to the pattern visualization image selected by the display image selection unit in a predetermined display area of the display screen;
A face material pattern finish simulation system characterized by comprising: When the image display control unit switches the image to be displayed in the display area to the pattern visualized image selected by the display image selection unit, the display positions of the corresponding pixels of the pattern visualized image before and after switching are the same. As described above, the face material pattern finish simulation system according to claim 1, wherein the simulation is displayed in the display area. The face material pattern finish according to claim 1, wherein the display image selection unit selects the pattern visualized image according to the layer selected in the layer selection region of the display screen. Simulation system. The layer selection area is composed of each layer unit selection area of the pattern image data, the uneven shape image data and the gloss image data,
The display image selection unit
The face material pattern finish simulation system according to claim 3, wherein the pattern visualization image in which the layers of the selected layer unit selection region are superimposed is selected as an image to be displayed in the display region. The layer selection area is formed as a switching button,
The display image selection unit
The overlay of the layers is switched each time the layer selection area is pressed, and the pattern visualization image of the overlay of the switched layers is selected as an image to be displayed in the display area. 3. The face material pattern finish simulation system according to 3. The face material pattern according to any one of claims 1 to 5, further comprising an editing unit that edits data of the layer in the pattern visualization image displayed in the display area. Finished simulation system. An adjustment area for adjusting the data of the layer is provided in the display area,
When the editing unit operates the adjustment area, in the pattern visualized image displayed in the display area, the data of the layer to be edited is adjusted according to the operation, and is displayed along with this adjustment. The face material pattern finish simulation system according to claim 6, wherein the pattern visualization image is changed with respect to the image processing unit. The face material pattern finish simulation system according to claim 7, wherein the adjustment region is provided as a slider corresponding to each layer. 8. The face material pattern finish simulation according to claim 7, wherein the adjustment area includes a data adjustment area for adjusting data and an edit layer selection area for selecting the layer to be edited. system. The data adjustment area has a two-dimensional adjustment plane composed of a first adjustment axis and a second adjustment axis;
10. The face material pattern finish simulation system according to claim 9, wherein the layer to be edited is set by the editing layer selection region for each of the first adjustment axis and the second adjustment axis. A face material pattern finish simulation method for displaying a pattern visualized image showing a finish of a pattern made of the pattern, the uneven shape and the gloss in a face material composed of a plurality of layers including a pattern, uneven shape and gloss information. ,
An image processing step in which the image processing unit generates the pattern visualized image by superimposing either one of the layers composed of the pattern image data, the uneven shape image data, and the gloss image data;
A display image selection unit that selects a pattern visualization image corresponding to the layer or the superposition of the layers from the generated pattern visualization image; and
The image display control unit includes an image display control process in which a displayed image is switched to the pattern visualized image selected by the display image selection unit and displayed in a predetermined display area of the display screen. Surface pattern finish simulation method.

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