JP2001226848A - Method and apparatus for making data of weave diagram of woven fabric and method and apparatus for weaving woven fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain information of the weave diagram of a woven fabric in a short time and to make a design drawing of woven fabric (pattern figure) by subjecting taken full-color image data to subtractive color conversion by an error diffusion method. SOLUTION: A full-color pattern such as photography, picture, design, etc., is taken by a scanner and the taken full-color picture element number is changed so as to adjust the pattern to the numbers of warps and wefts of woven fabric. The full-color image data are subjected to subtractive color to eight colors produced from three primary colors by using an error diffusion method. Consequently a texture point figure can be completed. The eight colors are eight colors of white, red, blue, green, yellow, cyan and magenta. Consequently a woven fabric approximate to an actual color tone can be woven.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of creating data of a texture point diagram of a woven fabric and an apparatus for creating data of a texture point diagram of a woven fabric.
The present invention also relates to a weaving method and a weaving apparatus for a woven fabric.

[0002]

2. Description of the Related Art In order to express a pattern such as a picture, a picture, a design, and a figure designed by computer graphic with a yarn-dyed jacquard fabric, even a multi-shed loom is limited by the limitation of the number of its shuttles. It is necessary to create a design drawing (print) showing the texture points of the fabric so that complicated shades and shades can be seen with the yarn. That is, it is necessary to reduce the infinite number of colors in the natural world down to the number of shuttles that can be woven by a loom while maintaining the atmosphere of the original drawing.

Conventionally, in order to reduce the number of colors that can be woven, a design drawing (printed pattern) in which photographs, paintings, and designs are color-coded on graph paper (ruled paper) based on years of accumulated sensitivity and experience of skilled workers. Has been created. In recent years, drawings for computer input have been written on graph paper or the like, imported to a computer by a scanner, and further modified by an operator to create a design drawing of the fabric texture points. In any case, it is necessary to reduce the number of colored yarns to be used for the woven fabric and write with a paint of a predetermined number of colors. This required many years of skilled craftsmanship and a lot of production time.

[0004]

As a method of reducing full-color computer graphics to a woven primary color, for example, Japanese Patent No. 2860616 can be mentioned. The technique disclosed in Japanese Patent No. 2860616 is useful for applying color print output data to a multi-color separation or color printer for printing to textile products such as woven or knitted fabrics. Since print output data does not include white information, print data for a color printer or the like is used to forcibly generate white information using a logical expression to create print data for textile products. It was done.

[0005] However, this patent No. 2860616
In the method using print output data as in No. 1, data for fabric is created using cyan, magenta, yellow, black, and white from data for printing, so that the property of light absorption by ink is Unlike printing which uses mixed colors, the fabric has the problem that the mixed colors of cyan and magenta appearing in printing do not become blue, the mixed colors of magenta and yellow become red, and the mixed colors of cyan and yellow do not become green. ing. Therefore, this method has a problem that it is impossible to reproduce a complete color space when applied to textiles.

Another conventional example of reducing the color of full-color computer graphics to a woven primary color is disclosed in Japanese Patent Publication No. 7-8861. The technique described in Japanese Patent Publication No. 7-8861 reduces the color using a dither method. This method uses n
Since the density is expressed using a × n matrix, the texture points of the fabric corresponding to the original full-color graphic must be reduced to 1 / (n × n). There is a problem in that the particles are conspicuous and jerky, which makes it difficult to convey the atmosphere of full color graphics.

As described above, in the conventional method of taking in a color image by computer operation and converting the taken-in image data into a design drawing of a woven fabric point, that is, Japanese Patent Publication No. 7-8861, the resolution of the drawing is poor. Further, in Japanese Patent No. 2860616, the color reproducibility is poor, and therefore, even when weaving a woven fabric from a tissue point diagram created by a conventional method, the expression after weaving does not become close to the original image data. There was a fatal problem for later textiles.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and provides information on a fabric texture point in a short time by performing color-reduction conversion of captured full-color image data by an error diffusion method. A first object is to create a figure (print), and a second object is to make it possible to weave a fabric that approximates the actual color tone of the captured image data by using the created fabric design drawing. It is an object of the present invention to provide a method for creating a data of a texture point chart of a woven fabric, a data creation device for a texture point chart of a woven fabric, and a weaving method and a weaving apparatus for a woven fabric.

[0009]

SUMMARY OF THE INVENTION Therefore, in the method of producing data of a texture point diagram of a woven fabric according to claim 1 of the present invention, a photograph,
An arbitrary design such as a painting or a design is captured as full-color image data from an image input device, or an arbitrary design is rendered as full-color image data by a drawing device inside a computer device, and the captured or drawn full-color image data Is multiplied by an error diffusion method to reduce the number of colors to eight, which can be woven with a yarn-dyed fabric and is generated from three primary colors, to create the data of the texture point diagram of the fabric.

[0010] By this method, full-color image data is reduced to eight colors that can be woven with a yarn-dyed fabric and is generated from three primary colors by using a multi-valued error diffusion method, and data of a texture point diagram of the fabric is created. By doing so, the information on the fabric texture point can be acquired in a short time, and the fabric design drawing (print) can be easily created.

[0011] In the data creation method of the texture point chart of the woven fabric according to claim 2, the eight reduced colors are black, white, red, blue,
It is characterized by eight colors of green, yellow, cyan and magenta.

According to a third aspect of the present invention, there is provided an image input means for taking in an arbitrary design such as a photograph, a picture, a design or the like as full-color image data, or an arbitrary design inside the full-color image data. Having at least one of drawing means for drawing as image data,
The full-color image data created by the image input means or the drawing means is reduced to eight colors that can be woven with a yarn-dyed fabric and is created from three primary colors by using a multi-valued error diffusion method. It is characterized in that it is provided with an organization point chart data creating means for creating the data.

With this configuration, the full-color image data is reduced to eight colors that can be woven with a yarn-dyed fabric and is generated from three primary colors by using a multi-valued error diffusion method, and data on a texture point diagram of the fabric is created. By doing so, the information on the fabric texture point can be acquired in a short time, and the fabric design drawing (print) can be easily created.

According to a fourth aspect of the present invention, the eight reduced colors are black, white, red, blue,
It is characterized by eight colors of green, yellow, cyan and magenta.

According to a fifth aspect of the present invention, an arbitrary pattern such as a photograph, a picture, a design, or the like is captured as full-color image data from an image input means, or an arbitrary pattern is converted to a full-color image by a drawing means inside a computer device. The full-color image data captured or drawn can be woven with a yarn-dyed fabric using a multi-valued error diffusion method, and can be created from three primary colors.
It is characterized in that the data is reduced to a color and the data of the organization point chart of the fabric is created, and the woven fabric is woven by a loom using the data of the organization point chart.

With this weaving method, full-color image data is reduced to eight colors that can be woven with a yarn-dyed fabric and is created from three primary colors by using a multi-valued error diffusion method, and data of a texture point diagram of the fabric is created. By doing so, it is possible to acquire information on the fabric organization points in a short time and to create a fabric design drawing (print pattern).
Can be easily created, and further, by using this woven fabric design drawing, a woven fabric that approximates the actual color tone can be woven.

According to a sixth aspect of the present invention, the eight reduced colors are black, white, red, blue, green, yellow, cyan, and magenta.

In the weaving apparatus according to the present invention, an image input means for taking in an arbitrary design such as a photograph, a picture, a design or the like as full-color image data, or a drawing means for internally drawing an arbitrary design as full-color image data The full-color image data created by the image input means or the drawing means can be woven with a yarn-dyed fabric and reduced to eight colors derived from the three primary colors by using a multi-valued error diffusion method. And a loom for weaving a woven fabric based on the data of the organization point chart created by the organization point chart data creation means. I have.

With this configuration, full-color image data is reduced to eight colors that can be woven with a yarn-dyed fabric and is generated from three primary colors by using a multi-valued error diffusion method, and data on a texture point diagram of the fabric is created. In this way, the information on the fabric texture point can be acquired in a short time, and the fabric design drawing (print pattern) can be easily created. Further, by using this fabric design drawing, the actual color tone can be adjusted. Similar fabrics can be woven.

In the weaving apparatus according to the eighth aspect, the eight reduced colors are eight colors of black, white, red, blue, green, yellow, cyan, and magenta.

According to the second, fourth, sixth and eighth aspects, the eight reduced colors are black, white, red, blue, green,
The use of eight colors of yellow, cyan, and magenta makes it possible to weave a woven fabric similar to the color tone of the original drawing with a small number of color yarns, and the use of eight color yarns enables the construction of a weaving machine for weaving. It can be simplified.

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 9 is a schematic block diagram of the computer device 1 of the present invention, and 10 is a scanner, which reads a photograph, a picture, a design, etc. from the scanner 10. Reference numeral 11 denotes an input device, which is a keyboard, a mouse, a digital camera, a CD-ROM, a DVD driver, or the like. The storage device 12 including a RAM, a ROM, and the like stores a control program of the present invention, a program of photo retouching software for creating and modifying a design, and stores image data captured by the scanner 10. It is. The storage device 12 is a concept including a so-called main storage device, an auxiliary storage device, and the like.

A control unit 13 including a CPU and a central processing unit called an MPU receives image data and commands from the scanner 10, the input device 11, and the like.
It exchanges data with the storage device 12 and governs overall control according to a program. Reference numeral 14 denotes a full-color printer, which prints out an image captured by the scanner 10, a corrected image, and the like. Further, the display unit 15 made of a CRT, a liquid crystal, or the like displays a captured design or an image created by the control unit 13. The output device 16 records the data of the design drawing (print pattern) of the fabric texture point created by the control unit 13 on a floppy disk (FD), MO (magneto-optical disk), CD-R / RW, DVD-RAM, or the like. This is to be stored in a medium.

Next, the operation control of the present invention will be described.
First, as shown in step S1 of FIG. 2, a pattern such as a photograph, a painting, a design, or the like as a material is determined, and then the process proceeds to step S2. Step S2 is a work of taking in a full-color image, and takes in photographs, paintings, and design materials (designs) from the scanner 10, the digital camera of the input device 11, a CD-ROM, or the like into the computer device 1 as full-color image data. Next, as shown in step S3, the captured image is processed and corrected by photo retouching software. Here, instead of taking in the material with the scanner 10 or the like, an image based on computer graphics may be drawn directly by the computer device 1.

If the full-color image is drawn, processed, corrected, etc., and then printed out as shown in step S4 for consideration, the process proceeds to step S5, where the material (design) is printed by the full-color printer 14. Print out. Then, as shown in step S6, the designed material is printed out, and as a result of studying the printed out full-color drawing or the screen on the display unit 15, if it is necessary to start over, it is necessary to return to step S3 and start over. If the material is OK, the full color drawing is completed. This completed full-color diagram is shown in FIG. 5 as an example.

The flowchart shown in FIG. 2 is a method that has been used in the past, and how much the actual (original) color tone is obtained when fabrics are actually woven by what method is performed thereafter. (Color) is determined. The inventor of the present invention has conducted various trial and error tests in view of the fact that the woven fabric after weaving cannot be approximated to the actual color tone in the method described in the conventional example. By using the error diffusion method, the color tone can be approximated to the actual (original) color tone for the first time.

FIG. 1 is a flow chart for converting from the full color diagram to the organization point diagram prepared in FIG. 2. First, the control shown in step S11 is performed. The woven fabric is completed by weaving with a warp and a weft, as is well known, and expresses the color by a plurality of colors of the weft. In addition, the number of pixels in the full-color diagram created on the computer device 1 is different from the actual number of yarns in the woven fabric. Therefore, it is necessary to change the number of pixels in the full-color diagram in order to match the number of warp and weft yarns in the woven fabric. There is.

Therefore, as shown in step S11 in FIG. 1, the number of dots on the X-coordinate of the full-color diagram is multiplied by the number of dots on the Y-coordinate of the full-color diagram to the number of dots of the fabric to be woven. Calculate the number. Then, the number of X dots and the number of Y dots of the full-color diagram are changed by using a reduction / enlargement command of the photo retouching software and an optimal method.
FIG. 6 shows an example of a diagram in which the number of X dots and the number of Y dots are changed in this way.

Next, the process proceeds to step S12, where the three primary colors are used, the process proceeds to step S13, where the colors are reduced to eight colors generated from the three primary colors by using the error diffusion method. Thus, the organization chart of the index color can be completed. FIG. 7 shows the organization dot diagram reduced to eight colors.
Shown in Here, the eight colors are eight colors of white, red, green, blue, cyan, magenta, yellow, and black, and weaving is performed using these eight colors as weft yarns. Each small square-colored substantially square portion shown in FIG. 7 is a texture point, and is a portion where weft yarn is actually woven.

The reason why the full color is reduced to eight colors by the error diffusion method is that the actual color tone can be approximated by eight weft yarns. This makes it difficult to weave. In addition, 7
When the number of colors is less than the color, the number of colors (the number of color yarns) departs from the actual color tone, and the color tone deteriorates. Therefore, the full-color image data is reduced to eight colors by the error diffusion method from the viewpoint of the ease of weaving and the fact that the woven fabric can approximate the actual color tone.

As described above, the error diffusion method is used to reduce the colors of the full-color images to eight colors generated from the three primary colors. This error diffusion method reduces the color of each tissue point. At this stage, the error between the color of the tissue point that has already determined which color thread is to be used (reduced) and the color of that tissue point in the full-color diagram is fed back to the next color to be determined, and some This is a method that allows colors to be approximated on average at points. Actually, it is not appropriate to continue such error propagation indefinitely from the viewpoint of reproducing symbols, so that a value near a certain value is filtered and used.

That is, by giving a weight to the error between the color in the full-color diagram of the point near the tissue point of interest to be reduced and the already reduced color, the target tissue point (1 out of 8 colors) is given.
Is added to or subtracted from an appropriate color (one of eight colors). FIG.
Numeral 1 indicates a matrix of weights to be given as an error between the color of the nearby full-color diagram and the already reduced color as the target tissue point at the position of the # mark. FIG. 11A shows Fl
The matrix proposed by oyd and Steinberg is shown, and the figure (b) shows the matrix proposed by Jarvis, Judice and Ninke.

In the present invention, the error diffusion method is applied using the matrix shown in FIG. FIG. 8 is an enlarged view of a part of the state of sequentially scanning in the x direction while changing the scanning line in the y direction. FIG. 10 is a diagram separately extracted from a portion surrounded by a white line at a substantially central portion in FIG. 8, where R is a texture point of a red color thread, and W is a texture point of a white color thread. , Y indicate the texture point of the yellow thread, and M indicates the texture point of the magenta thread. The hatched portion in the figure is the target tissue point, and FIG.
Is determined by reducing the color of the target tissue point by using the matrix shown in FIG.

An error diffusion method is used as a method for reducing the color of the target tissue point, and a matrix using numerical values and the like shown in FIG.
It is not limited to the matrix shown in FIG. The color tone after weaving and finishing the woven fabric is slightly different. Therefore, in order to determine the color of the tissue point by trial and error, it is necessary to change the numerical value of the weight of the matrix. In addition, the number of rows and columns is increased or decreased with respect to the rows and columns in FIG. 11B, or the total value of the total weight is appropriately increased or decreased with respect to 48 shown in the figure, and weaving is performed. This is determined appropriately by looking at the color that follows.

As described above, the image data of the pattern created by the computer device 1 can be woven in a yarn-dyed fabric by using a multi-valued error diffusion method.
By reducing the color to eight colors of white, red, blue, green, yellow, cyan, and magenta to generate a texture dot diagram of the woven fabric, the texture dot diagram that a skilled worker took a long time (long term) can be instantly obtained. You can now create. Moreover, by using the color error diffusion method, the atmosphere of the original drawing can be reproduced more than the conventional dither method or halftone method.

When outputting the organization chart completed in step S13 of FIG. 1 as data, the data is converted into a predetermined format and output to a floppy disk (FD), MO (magneto-optical disk) by the output device 16 shown in FIG. ), CD-R
-Recording is performed on recording media such as RW and DVD-RAM. As a result, it is possible to easily create the data of the organization point chart of a large number of symbols and store the data of the created organization point chart.

The loom is woven by computer control based on data in a predetermined format, and it is necessary to convert the data of the organization chart into data conforming to the format of the loom. Therefore, as shown in FIG. 3, when data conversion is necessary, the process proceeds from step S21 to step S22, where the organizational chart of the index color is converted into the data for the control device for weaving the pattern of the fabric. Convert to By this data conversion processing, data for weaving with a predetermined loom can be obtained.

FIG. 4 shows a flow chart of color photographic weaving by the Nishijin weaving apparatus based on the data obtained in FIG. 3. Since the contents of this flow chart are well known,
Detailed description is omitted. First, in step S31, it is determined whether to use a needle tissue. In step S32, if there is a tissue for weaving in the tissue point map, it is synthesized. Further, in step S33, weaving data such as computer graphics is created using the Nishijin weaving apparatus and technique.
Then, as shown in step S34, by weaving with a loom, it is possible to complete a color photographic woven fabric that has been reduced to eight colors by the error diffusion method. This can reduce the apparent decrease in resolution of the actually woven fabric,
It is possible to weave a fabric that can approximate the actual color tone of the original drawing.

In the above embodiment, the eight colors are black,
Although described as white, red, blue, green, yellow, cyan, and magenta, black includes colors that appear blackish, and similarly, the colors of white, red, blue, green, yellow, cyan, and magenta, respectively, It also includes colors that look the same.

Further, in the above embodiment, when the color is reduced to eight colors, the color yarn reproduces the color tone by using the weft yarn. However, the present invention is not limited to this. For example, any one of the above eight colors may be used as a warp yarn, and a warp yarn of that color may be used instead of a weft yarn at a location where the color is determined. In this case, a woven fabric that can approximate the actual color tone can be woven, the number of weft yarns can be reduced, and the configuration for weaving can be simplified.

[0041]

According to the data creation method of the texture point diagram of the woven fabric according to the first aspect of the present invention, full-color image data can be woven on a yarn-dyed woven fabric by using a multi-valued error diffusion method, and the color of the color can be adjusted. Since the data of the texture point map of the fabric is created by reducing the color to eight colors generated from the three primary colors, information on the fabric texture point can be acquired in a short time, and the fabric design drawing (print pattern) can be easily created. be able to.

According to the third aspect of the present invention, the full-color image data can be woven with the dyed-in woven fabric by using the multi-valued error diffusion method, and eight colors generated from the three primary colors of the color can be obtained. Since the data of the texture point diagram of the fabric is created by reducing the color, the information of the fabric texture point can be acquired in a short time, and the fabric design drawing (print pattern) can be easily created.

According to the method for weaving a woven fabric according to claim 5,
Full-color image data is converted using multi-valued error diffusion.
Fabrics can be woven with yarn-dyed fabric and reduced to 8 colors created from the three primary colors to create data on the woven fabric point map, so that information on the woven fabric point can be obtained in a short time and the woven blueprint (Print pattern) can be easily created, and further, by using this fabric design drawing, a fabric that approximates the actual color tone can be woven.

According to the weaving device of the present invention, the full-color image data is reduced to eight colors which can be woven with a yarn-dyed fabric and is generated from three primary colors by using a multi-valued error diffusion method. By creating the data of the dot diagram, it is possible to obtain the information of the fabric texture point in a short time and easily create the fabric design drawing (print pattern), and further use the fabric design drawing. Thereby, it is possible to weave a woven fabric that approximates the actual color tone.

According to the second, fourth, sixth and eighth aspects, the eight reduced colors are black, white, red, blue, green,
The use of eight colors of yellow, cyan, and magenta makes it possible to weave a woven fabric similar to the color tone of the original drawing with a small number of color yarns, and the use of eight color yarns enables the construction of a weaving machine for weaving. It can be simplified.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a control operation for converting a full-color diagram to a tissue point diagram according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a control operation for completing a full-color drawing from a material according to the embodiment of the present invention.

FIG. 3 is a flowchart in a case where data of the organization point chart created in FIG. 1 according to the embodiment of the present invention is converted into weaving data by a loom;

FIG. 4 is a flowchart showing a weaving process of a color photographic weave in a predetermined format from tissue point data reduced by the error diffusion method according to the embodiment of the present invention.

FIG. 5 is a diagram showing a full-color diagram as a material according to the embodiment of the present invention.

FIG. 6 is a full-color diagram after the number of dots is changed to the number of mouths of the fabric according to the embodiment of the present invention.

FIG. 7 is a tissue point diagram when the number of colors is reduced to eight by the error diffusion method according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a color reduction method by an error diffusion method according to the embodiment of the present invention.

FIG. 9 is a block diagram of a computer device according to an embodiment of the present invention.

FIG. 10 is a main part enlarged explanatory view showing a color reduction method by an error diffusion method according to the embodiment of the present invention.

FIG. 11 is an explanatory diagram of a matrix used in the error diffusion method according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Computer apparatus 10 Scanner 11 Input device 12 Storage device 13 Control part 14 Printer 15 Display part 16 Output device

Claims (8)

[Claims] 1. An arbitrary design such as a photograph, a painting, a design, etc. is taken as full-color image data from an image input means,
Alternatively, an arbitrary pattern is drawn as full-color image data by drawing means inside the computer device, and the captured or drawn full-color image data can be woven on a yarn-dyed fabric by using a multi-valued error diffusion method, so that the color can be drawn. A method of creating data of a texture point chart of a woven fabric, wherein data of the texture point chart of the woven fabric is created by reducing the number of colors to eight colors generated from three primary colors. 2. The eight reduced colors are black, white, red, blue,
2. The method according to claim 1, wherein the colors are green, yellow, cyan, and magenta. 3. An image input means for taking in an arbitrary design such as a photograph, a painting, a design or the like as full-color image data, or a drawing means for internally drawing an arbitrary design as full-color image data. And
The full-color image data created by the image input means or the drawing means is reduced to eight colors that can be woven with a yarn-dyed fabric and is created from three primary colors by using a multi-valued error diffusion method. A tissue point chart data creating device for creating a texture point chart of a woven fabric. 4. The eight reduced colors are black, white, red, blue,
4. The data creating apparatus according to claim 3, wherein the data is eight colors of green, yellow, cyan, and magenta. 5. An arbitrary design such as a photograph, a painting, a design, etc., is taken in as full-color image data from an image input means,
Alternatively, an arbitrary pattern is drawn as full-color image data by drawing means inside the computer device, and the captured or drawn full-color image data can be woven on a yarn-dyed fabric by using a multi-valued error diffusion method, so that the color can be drawn. A weaving method for a woven fabric, characterized in that the data is reduced to eight colors generated from the three primary colors to create data of the texture point chart of the fabric, and the data is used to weave the fabric by a loom. 6. The eight reduced colors are black, white, red, blue,
The weaving method for a woven fabric according to claim 5, wherein the color is eight colors of green, yellow, cyan, and magenta. 7. An image input means for taking in an arbitrary design such as a photograph, a painting, a design or the like as full-color image data, or a drawing means for internally drawing an arbitrary design as full-color image data. And
The full-color image data created by the image input means or the drawing means is reduced to eight colors that can be woven with a yarn-dyed fabric and is created from three primary colors by using a multi-valued error diffusion method. And a loom for weaving a woven fabric based on the data of the organization chart created by the organization chart data creation means. 8. The eight reduced colors are black, white, red, blue,
The weaving apparatus according to claim 7, wherein the weaving apparatus has eight colors of green, yellow, cyan, and magenta.