JP3838098B2 - Full color weaving painting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a full color woven painting in which a number of warps and wefts having different colors are selectively woven onto the surface of the woven fabric to express a design such as a photograph or painting with the woven fabric.
[0002]
[Prior art]
When a design having gradation color change such as a photograph or painting is expressed by a fabric, the colors of the pixels of the design are added to the three primary color RGB color models, the pigment HSV color model, and the HLS. Color separation is performed based on the color model, the principle of adding white to CMYK, and the color based on each principle is used as the color element of warp and weft, and the color of the design pixel is expressed by additive color mixing. There, both weft and warp are important elements in color expression.
[0003]
[Problems to be solved by the invention]
When the design pixel color is expressed by a fabric based on the principles of RGB, HSV , HLS, CMYK, etc., the warp and weft constituting the surface of the fabric correspond to halftone dots in printing. While the points are fine enough to be barely confirmed through a magnifying glass, the crossing points of the warp and weft constituting the surface of the fabric are as coarse as can be easily confirmed visually. For this reason, if the warp and weft have unique color elements for expressing the colors of the pixels in the design of the woven painting, the mixed color that can be expressed by the halftone dots of the print is created by the original color elements of the warp and weft. If you pick up the woven painting and look at it closely, it will look like a spot mixed with the original colors of warps and wefts, and the entire woven painting will appear rough compared to printing That is the current situation.
[0004]
OBJECT OF THE INVENTION
Therefore, the present invention expresses pixels that have been conventionally expressed as a mixture of different warp and weft colors by the color of the wefts without being affected by the color of the warp that appears at the connection point. The aim is to obtain a full-colored woven painting that has a good quality even when viewed by the hand without giving a rough impression due to the mixture of colors.
[0005]
[Means for Solving the Problems]
The weaving painting weaving method according to the present invention is a full-color weaving painting that expresses a design in which weaving various kinds of wefts selectively between warps and disassembling photographs, paintings, and other various patterns into a large number of pixels. In the weaving of the above, the warp is composed of two achromatic warps of black and white and three or more chromatic color warps of different colors as a unit warp group, and the pixel of the above design is constituted by the color of the weft, The first characteristic is that the wefts constituting the pixel are connected to the warp whose color value is closest to the color value of the weft .
[0006]
[0007]
A second feature of the weaving painting method according to the present invention is that, in addition to the first feature , three or more chromatic color warps in the unit warp group have hue values of 310 to 360 ° = 0 °. -30 °, red warp with saturation value 0.4-1 and lightness value 0.4-1, yellow value with hue value 30 ° -60 °, saturation value 0.4-1 and lightness value 0.4-1 Warp, green warp with hue value of 60 ° to 160 °, saturation value of 0.4 to 1, lightness value of 0.4 to 1, and hue value of 160 ° to 290 °, saturation value of 0.4 to 1, lightness Including any chromatic color warp of four types of blue warp with a value of 0.4 to 1, the lightness value of the black warp is 0 to 0.4, the saturation value of the white warp is 0 to 0.4, The brightness value is set to 0.8 to 1.0.
[0008]
The third feature of the weaving and painting method according to the present invention is that, in addition to any of the first and second features, the warp yarn fineness W, the number n of types of warp colors, and the weft yarn Fineness F, weft display density q appearing on the surface of a full-color woven painting, warp arrangement density p, period T in which each warp of a unit warp group forms a tie point over the weft The color design index value ρ calculated by the relational equation ρ = (W / F) × (p / q) ÷ (n × T) is set to 0.5 or less (ρ ≦ 0.5).
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the hue value, the saturation value, and the lightness value mean the color values defined in the hue-based HSV color model. The distance r between the color value of the weft and the color value of the warp when the color value of the weft is the closest to the color value of the weft is r ² = (difference between the hue value of the weft and the warp ÷ 360) ² + (with the weft The difference between the saturation values of the warps is calculated as ² + (the difference between the brightness values of the weft and the warp) ²
Further, when the warp whose color value is closest to the color value of the weft is to be bound, it is different from the method for obtaining the distance r between the color value of the weft and the color value of the warp as the calculated value calculated by the above formula. As shown in FIG. 2, an achromatic white area (A) including a chromatic color and an achromatic color having a low saturation value and a high lightness value as shown in FIG. 2, and an achromatic black including a chromatic color and an achromatic color having a low lightness value. The area (B) is divided into three areas: a chromatic and achromatic area (C) including other chromatic colors and achromatic colors. (1) The weft yarns 22 whose color values belong to the achromatic white area (A) On the other hand, the warp yarn 12 whose color value belongs to the achromatic white area (A) is connected, and (2) for the weft yarn 21 whose color value belongs to the achromatic black area (B), the color value is achromatic. The warp yarn 11 belonging to the black area (B) is connected, and (3) for the weft yarn 23 whose color value belongs to the chromatic and achromatic area (C), The distance calculated as the difference (α ° · β °) between the hue value of the weft 23 and the hue value of the warp yarns 13 and 14 among the warp yarns 13 and 14 (15 · 16...) Belonging to the achromatic / achromatic area (C). A method is adopted in which the warp yarns 14 having the smallest number are connected.
As another method, as shown in FIG. 3, the color coordinates are the warp yarns 11, 12, 13, 14, 15, and 15 constituting a unit warp group including an area Q1 of white achromatic warp and an area Q2 of black achromatic warp. ... Is divided into the same number of areas Q1, Q2, Q3, Q4, Q5, Q6..., And the color coordinates are divided into 360 units of unit hue values as shown in FIG. Then, a color coordinate table 81, 82, 83, 84,... Is created for each unit hue value divided by the color value and the brightness value, and the unit is assigned to the color coordinate table 81, 82, 83, 84,. Fill in the areas Q1, Q2, Q3, Q4, Q5, Q6, etc. to which each warp that constitutes the warp group belongs, and areas Q1, Q2, Q3, Q4, Q5 where the color difference from each weft is not felt visually -Color coordinate tables 81, 82 including Q6 ... 83.84..., The area (Q4) corresponding to the color value of the weft in the area (Q2, Q4, Q5) displayed in the color coordinate table 81, 82, 83, 84. A method is called that the warp yarns to which they belong are bound.
[0010]
For wefts, the colors of designs such as photographs and paintings are analyzed, and generally 6 to 16 colors that are optimal for expressing the colors of the designs are selected and used. In addition to the color of the weft thread used, the design separated into a large number of pixels used as the background of the fabric can be reduced to a color that can be expressed by a mixture of the colors of the two weft threads used.
This color reduction can be performed using commercially available image software, or can be performed using a pseudo gradation display principle such as a dither method.
[0011]
The number of pixels at the time of color reduction is determined by the number of pixels corresponding to the warp arrangement density p and the weft display density q of the weaving painting to be woven, and the background pixel color is for arranging the wefts on the fabric surface. Used for.
In that case, two types of black and white achromatic warp and three or more chromatic color warps of different colors, for example, a total of six types of red, yellow, green, blue, black, and white yarns. Select the warp whose color value is closest to the color value of the weft arranged on the screen from the unit warp group composed of color yarns (number n of warp types by color n = 6), and several wefts When two unit warp groups intersecting with each other constitute one connecting point, a surface structure as a fabric of a full color woven painting is formed.
[0012]
In the present invention, the “period T in which a unit warp group constitutes one connection point” means any one of the unit warp groups including warp yarns over the wefts appearing on the fabric surface. the warp yarns, until beyond the top of any one warp next weft in a unit warp group that contains the warp beyond the top of the weft, all warp of the unit warp group It means the number of weft yarns that appear on the fabric surface beyond 1 plus one. In the present invention, the “arrangement density p of warps” means the number of warp arrays per 1 cm ² of unit surface area of a full-color woven painting. In the present invention, the “expressed density q of the weft” means the number of expressed weft per 1 cm ² of unit surface area of the full-color woven painting.
The period T in which the unit warp group constitutes one splice point, the fineness W of the warp, the number n of types of warp colors, the fineness F of the weft, and the weft appearing on the surface of the full-color woven painting The color design index value ρ calculated by the relational expression ρ = (W / F) × (p / q) ÷ (n × T) between the expression density q and the warp arrangement density p is 0.5 or less ( If the period T, the fineness W · F, the number n of types of warp colors, the weft display density q, and the warp arrangement density p are set so that ρ ≦ 0.5) It is expressed by the color of the weft without being affected by the color of the warp appearing at the end point, and the color of the different warp and the weft is mixed to give a full-color woven painting with a good quality without giving a rough impression.
[0013]
(1) When the fineness W of the warp is less than the fineness F of the weft and the ratio W / F is 1 or less, (2) the arrangement density p of the warp is coarser than the exposed density q of the weft, When the number of warp yarns per 1 cm ² is less than the number of weft yarns per 1 cm ² and the ratio p / q is 1 or less, (3) The number n of types of warp colors is large, When the color value of the warp is close to the color value of the weft, or (4) the period T in which the warp of the unit warp group crosses over the weft to form a knot is long, and the warp is on the surface of the full-color woven painting When the frequency of appearance decreases, the color of the weft that appears on the surface of the full-color woven painting is less affected by the color of the warp, and the different colors of the warp and the weft are mixed to give a rough impression. A high-quality full-color woven painting expressed by colors can be obtained.
[0014]
However, the warp yarn fineness W is determined by the relationship between the texture, size / dimension, physical strength, shape stability, pixel fineness, warp and weft fiber materials, loom performance and structure, weaving method, etc. It is extremely less than the fineness F of the weft, or the arrangement density p of the warp is extremely coarse, or the number n of types of warp colors is increased as much as possible, or the warps of the unit warp group are in contact with each other. The period T for forming the knot cannot be made extremely long. Sometimes, the warp fineness W is set to the same degree as the weft fineness F, or the warp arrangement density p is set to the same as the weft display density q. Alternatively, the period T for forming the uniting point of the unit warp group must be shortened, and depending on the design, the chromatic warp may be red, yellow, and blue. In any of these cases, for example, when the fineness W of the warp must be the same as the fineness F of the weft, the warp yarn arrangement density p is made coarser than the weft display density q, and the warp colors are classified by color. When the number n of n is sufficient, the color design index value ρ is 0.5 or less (ρ ≦ 0.5), preferably 0.06 or less (ρ ≦ 0), for example, by reducing the warp yarn arrangement density p. 0.06), more preferably 0.04 or less (ρ ≦ 0.04). Then, a texture structure as a woven fabric corresponding to a period T in which each warp of the set unit warp group exceeds the weft to form a knot is formed, and a full color woven painting expressed by the color of the weft is formed. can get.
[0015]
Incidentally, the unit warp group is composed of a total of six types of color yarns of red yarn 11, yellow yarn 12, green yarn 13, blue yarn 14, white yarn 15 and black yarn 16 (the number n of types of warp types by color n = 6). ), The fineness W of each warp and the fineness F of the weft are set to 82 dtex, the arrangement density p of the warp and the exposed density q of the weft are set to 50/10 cm, and the connection point is selected from the unit warp group. period T of the formed warp is color scheme index value ρ of 2 full-color woven painting becomes 0.083, color scheme index value of the period T is 3 full-color weave painting ρ becomes 0.056 (FIG. 1), The color design index value ρ of a full-color woven painting with a period T of 5 is 0.033.
[0016]
Even if the color design index value ρ is 0.5 or less (ρ ≦ 0.5), in order to make the color of the weft that should appear on the surface of the full-color woven painting hardly affected by the color of the warp, at least the fineness W of the warp It is thinner than the fineness F of the weft.
Warp and weft (21A, 22A, 23A) that do not constitute the surface of a full-color woven painting, that is, warps and weft that are necessary in some parts of the full-color woven picture but not in other parts constitute the back of the full-color woven picture The arithmetic processing is performed.
[0017]
In the present invention, 6 to 16 kinds of colored yarns are used for the wefts, and 1 to 2 wefts selected from them are arranged for one pixel of the background, and the warp fineness W, The number n of types of warp, the fineness F of the weft, the exposed density q of the weft appearing on the surface of the full color woven painting, the arrangement density p of the warp, and the warps 11 and 12 of the unit warp group A period T in which 13, 14, 15, 16 is formed above the wefts 21, 22, 23,... To form the connection points 31, 32, 33 is expressed by the relational expression ρ = (W / F) × (p When the color design index value ρ calculated by / q) ÷ (n × T) is set to 0.5 or less (ρ ≦ 0.5), a texture structure as a woven fabric is formed. As such, unlike the conventional technique of forming a texture structure as a woven fabric by applying a finite woven structure prepared in advance to the pixels of the background, in the present invention, an infinite number that is not specially prepared by calculation. Since a texture structure as a woven fabric is generated from the texture structure, a stable full-colored woven painting can be efficiently obtained with a reasonable texture corresponding to the pixels of the background.
[0018]
The next step leading to the woven full color woven paintings from the analysis of the color design may be performed in computer.
(A) Color Analysis of design, such as painting, color reduction, and the setting of the number of pixels by the arrangement density p and weft expressive density q of WASH (b) the warp color saturation of the weft (c) color values of the weft And the distance r between the color values of the warp and the warp (r ² = (the difference between the hue values of the weft and the warp ÷ 360) ² + (the difference between the saturation values of the weft and the warp) ² + (the difference between the lightness values of the weft and the warp) ² ) Calculation of the binding warp by calculation (d) Division of color coordinates by the achromatic white area (A), achromatic black area (B) and chromatic achromatic area (C) and setting of the binding warp (e) Division of color coordinates by number (n) of warps constituting unit warp group, creation of color coordinate table, and setting of binding warp (f) Color of red warps constituting unit warp group (hue values 310 to 360) ° = 0 ° to 30 °, saturation value 0.4 to 1, lightness value 0.4 to 1), yellow warp color (hue value 30 ° to 60 °, saturation value 0. ˜1, brightness value 0.4-1), green warp color (hue value 60 ° -160 °, saturation value 0.4-1, lightness value 0.4-1), blue warp color (hue value) 160 ° to 290 °, saturation value 0.4 to 1, lightness value 0.4 to 1), black warp color (lightness value 0 to 0.4), white warp color (saturation value 0 to 0.0). 4, setting of brightness value 0.8-1.0)
(G) Fineness W of warp according to the relational expression ρ = (W / F) × (p / q) ÷ (n × T) ≦ 0.5, number n of types of warp colors, fineness F of weft, Setting of weft display density q, warp arrangement density p, uniting point period T of unit warp group and formation of woven structure
【The invention's effect】
As described above, according to the present invention, the background pixel is expressed by the color of the weft without being affected by the color of the warp appearing at the connection point, and the color of the different color warp and the weft is mixed to give a rough impression. Without giving it, it is possible to efficiently obtain a full-colored woven painting with a high quality feeling even when viewed close to the hand.
[Brief description of the drawings]
FIG. 1 is a partially enlarged perspective view of a full color woven painting according to the present invention.
FIG. 2 is a conceptual diagram of color coordinates according to the present invention.
FIG. 3 is a conceptual diagram of color coordinates according to the present invention.
FIG. 4 is a conceptual diagram of a color coordinate table according to the present invention.
[Explanation of symbols]
11, 12, 13, 14, 15, 16 Warp 21, 22, 23 Weft 31, 32, 33 Connection point 81, 82, 83, 84 Color coordinate table

Claims (3)

In the weaving of full-color woven paintings, where weaving various colors of wefts selectively between warp yarns and expressing the design by disassembling photographs, paintings and other various patterns into a number of pixels, weaving the warp yarns in black and white Three or more kinds of chromatic color warps with different achromatic warps and different colors are repeatedly arranged as a unit warp group, and the pixel of the above design is configured by the color of the weft, and the weft constituting the pixel is the color of the weft Binding to the warp whose color value is closest to the value ,
Three or more chromatic color warps in the unit warp group are red warps and hues having a hue value of 310 to 360 ° = 0 ° to 30 °, a saturation value of 0.4 to 1, and a lightness value of 0.4 to 1. Yellow warp with a value of 30 ° to 60 °, a saturation value of 0.4 to 1, a lightness value of 0.4 to 1, a hue value of 60 ° to 160 °, a saturation value of 0.4 to 1, and a lightness value of 0.4 to 1 green warp and any one of four kinds of chromatic color warp of four kinds of blue warp of hue value 160 ° -290 °, saturation value 0.4-1 and lightness value 0.4-1 A full color woven painting weaving method characterized in that a lightness value of a warp is 0 to 0.4, a saturation value of a white warp is 0 to 0.4, and a lightness value is 0.8 to 1.0 . In the weaving of full-color woven paintings, where weaving various colors of wefts selectively between warp yarns and expressing the design by disassembling photographs, paintings and other various patterns into a number of pixels, weaving the warp yarns in black and white Three or more kinds of chromatic color warps with different achromatic warps and different colors are repeatedly arranged as a unit warp group, and the pixel of the above design is configured by the color of the weft, and the weft constituting the pixel is the color of the weft Binding to the warp whose color value is closest to the value,
The warp fineness W, the number n of types of warp colors, the fineness F of the weft, the exposed density q of the weft appearing on the surface of the full color woven painting, the arrangement density p of the warp, and the unit warp Color design index value calculated by a relational expression ρ = (W / F) × (p / q) ÷ (n × T) with a period T in which each warp of the group forms a connection point over the weft A full-color woven painting method characterized in that ρ is 0.5 or less (ρ ≦ 0.5) . In the weaving of full-color woven paintings, where weaving various colors of wefts selectively between warp yarns and expressing the design by disassembling photographs, paintings and other various patterns into a number of pixels, weaving the warp yarns in black and white Three or more kinds of chromatic color warps with different achromatic warps and different colors are repeatedly arranged as a unit warp group, and the pixel of the above design is configured by the color of the weft, and the weft constituting the pixel is the color of the weft Binding to the warp whose color value is closest to the value,
Three or more kinds of chromatic color warps in the unit warp group are red warps and hues having a hue value of 310 to 360 ° = 0 ° to 30 °, a saturation value of 0.4 to 1, and a lightness value of 0.4 to 1. Yellow warp with a value of 30 ° to 60 °, a saturation value of 0.4 to 1, a lightness value of 0.4 to 1, a hue value of 60 ° to 160 °, a saturation value of 0.4 to 1, and a lightness value of 0.4 to 1 green warp and three or more of four types of blue warp with a hue value of 160 ° to 290 °, a saturation value of 0.4 to 1, and a lightness value of 0.4 to 1, A lightness value of 0 to 0.4, a white warp saturation value of 0 to 0.4, and a lightness value of 0.8 to 1.0,
The warp fineness W, the number n of types of warp colors, the fineness F of the weft, the exposed density q of the weft appearing on the surface of the full color woven painting, the arrangement density p of the warp, and the unit warp Color design index value calculated by a relational expression ρ = (W / F) × (p / q) ÷ (n × T) with a period T in which each warp of the group forms a connection point over the weft A full-color woven painting method characterized in that ρ is 0.5 or less (ρ ≦ 0.5).

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