JP2019104240A - Printed matter, method of producing printed matter, image-forming apparatus, and program - Google Patents

Abstract

To provide a printed matter capable of artificially expressing texture of a metal color, a method of producing a printed matter, an image-forming apparatus, and a program.SOLUTION: One embodiment of the printed matter 100 includes: a recording medium 110; a chromatic color layer 120 formed on the recording medium 110 by a chromatic coloring material; a first region 131 which is a transparent material layer (clear toner layer) 130 formed on the chromatic color layer 120 by a transparent material; and a second region 132 which is a transparent material layer (clear toner layer) 130 formed on the chromatic color layer 120 by a transparent material, where a first amount per unit area found by dividing an amount of the transparent material formed with the first region 131 by an area of the first region 131 is different from a second amount per unit area found by diving an amount of the transparent material formed with the second region 132 by an area of the second region 132.SELECTED DRAWING: Figure 1B

Description

  The present invention relates to a printed matter, a method of producing the printed matter, an image forming apparatus, and a program.

  Attempts have been made to print metallic color patterns on recording media using an image forming apparatus such as an electrophotographic method or an inkjet method. For example, in addition to the four color materials of cyan (C), magenta (M), yellow (Y) and black (K), printing is attempted using metallic colors such as gold. . However, sufficient metallic gloss can not be obtained by using a conventional metallic colorant.

  It is also attempted to print using a transparent material having glossiness in order to simulate metallic gloss. By using a transparent material having glossiness, the smoothness of the surface of the print can be improved, and the gloss of the print can be enhanced. For example, with reference to RGB data of a pixel of interest and a color separation LUT, a CMYK value and a CL value of a transparent material having glossiness are determined, and an image in which the hue of diffused light matches the hue of specularly reflected light is printed. It has been proposed.

  However, with the prior art, although it is possible to improve the gloss by using a transparent material having glossiness, it is difficult to express the texture of the metallic color.

  An object of the present invention is to provide a printed matter, a method of producing the printed matter, an image forming apparatus, and a program capable of artificially expressing a metallic color texture.

  The present inventors diligently studied to solve the above-mentioned problems. As a result, it was found that the chromatic saturation was insufficient when it was attempted to simulate the metallic gloss of a chromatic color using a transparent material having glossiness. Moreover, it turned out that the regular reflection light by the layer of the transparent material which has glossiness is excess, and the regular reflection light by the layer of a colored coloring material runs short as a cause of the lack of saturation. Furthermore, in the layer of the transparent material having glossiness, the transparent material having the glossiness has a change in the amount per unit area of the material of the layer of the transparent material divided by the area of the layer of the transparent material. It has been found that the excessive specular reflection light due to is suppressed, and the specular reflection light by the layer of the colored colorant is intensified to significantly improve the saturation. Then, the inventor has conceived of one aspect of the invention described below.

  One aspect of the printed matter is a recording medium, a chromatic color layer formed on the recording medium and formed of a colored coloring material, and a transparent material layer existing on the chromatic color layer and formed of a transparent material A first area, and a second area which is a transparent material layer present on the chromatic color layer and formed of the transparent material, wherein the first area is the area of the first area A second unit obtained by dividing the amount of the transparent material forming the region by a first amount per unit area, and the area of the second region by the amount of the transparent material forming the second region It is characterized in that the amount per area is different.

  According to the present invention, the texture of metal color can be artificially expressed.

It is a schematic plan view which shows the structure of the printed matter which concerns on 1st Embodiment. It is a schematic cross section along the I-I line in FIG. 1A. It is a schematic diagram which shows the effect | action of the printed matter concerning 1st Embodiment. It is a schematic diagram which shows the outline | summary of the printed matter which it is going to manufacture by 2nd Embodiment. It is a flowchart which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment. It is a schematic diagram which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment. It is a schematic diagram which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment following FIG. 5A. It is a schematic diagram which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment following FIG. 5B. It is a schematic diagram which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment following FIG. 5C. It is a schematic diagram which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment following FIG. 5D. It is a schematic diagram which shows the manufacturing method of the printed matter which concerns on 2nd Embodiment following FIG. 5E. It is a block diagram which shows the hardware constitutions of the image forming apparatus which concerns on 3rd Embodiment. It is a figure which shows the function structure of the image forming apparatus which concerns on 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Although clear toner is exemplified below as an example of a transparent material having glossiness, and chromatic color toner is exemplified as an example of a colored material, the present invention is not limited to toner, and can be applied to, for example, ink or the like. It is.

First Embodiment
First, the first embodiment will be described. The first embodiment relates to a printed matter. FIG. 1A is a schematic plan view showing the configuration of the printed matter according to the first embodiment, and FIG. 1B is a schematic cross-sectional view taken along the line I-I in FIG. 1A.

  The printed material 100 according to the first embodiment includes the recording medium 110, the chromatic toner layer 120 on the recording medium 110, and the clear toner layer 130 on the chromatic toner layer 120. The chromatic toner layer 120 includes a first chromatic area 121 and a second chromatic area 122. For example, the first chromatic area 121 and the second chromatic area 122 are alternately arranged. In the present embodiment, the saturation S 2 of the second chromatic color area 122 is higher than the saturation S 1 of the first chromatic color area 121. The clear toner layer 130 (transparent material layer), which is a layer formed of a transparent material, overlaps the first region 131 overlapping the first chromatic region 121 in plan view and the second region 122 in plan view A second area 132 is included. In this embodiment, an amount t2 per unit area per second unit area obtained by dividing the amount of clear toner in the second region 132 by the area of the second region 132 is the first region 131 in the area of the first region 131. The first clear area per unit area divided by the amount of clear toner is smaller than t1. Preferably, the amount t2 of clear toner per second unit area in the second region 132 is zero. The recording medium 110 is high quality paper, gloss coated paper, matte coated paper, OHP, plastic film or the like.

  The chromatic toner layer 120 contains toner of cyan (C), magenta (M) or yellow (Y), or any combination thereof, and may further contain black (K) toner. The clear toner layer 130 is a layer formed using a clear toner, and the clear toner is generally a colorless and transparent toner containing no coloring material such as a pigment, but the clear toner is a total light beam. If the transmittance is 30% or more, it is not necessary to be completely colorless and transparent. If the total light transmittance is 30% or more, the clear toner may contain a color. The total light transmittance is measured by irradiating the sample obtained by preparing the toner with visible light emitted from a halogen lamp as a light source according to the total light transmittance test method of JIS K7361-1, ISO 13468-1. Transmissivity.

  Here, the operation of the printed matter 100 according to the first embodiment will be described. FIG. 2 is a schematic view showing the operation of the printed matter 100 according to the first embodiment. When the printed matter 100 is irradiated with the light 10, a part of the light 10 is reflected by the first area 131, another part is reflected by the first chromatic area 121, and the other part is the second. The light is reflected by the chromatic region 122. In this embodiment, since the amount t2 of the clear toner per second unit area in the second area 132 is zero, no reflection by the second area 132 occurs. Therefore, depending on the incident angle, most of the light entering the first area 131 is reflected by the first area 131 and the first chromatic area 121. The specular reflection light 21 from the first chromatic color area 121 includes the chromatic color of the first chromatic color area 121, and the specular reflection light 31 from the first area 131 has the same brightness as the light 10. Have. For this reason, it is possible to obtain specularly reflected light including high-gloss and chromatic color of the first chromatic color area 121. On the other hand, light incident on the second region 132 is not reflected by the second region 132, and most of the light is reflected by the second chromatic region 122 depending on the incident angle. The specular reflection light 22 from the second chromatic color area 122 includes the chromatic color of the second chromatic color area 122, and in the present embodiment, the saturation S2 of the second chromatic color area 122 is the first. Higher than the saturation S1 of the chromatic region 121. For this reason, it is possible to obtain specularly reflected light including the highly saturated chromatic color of the second chromatic color region 122.

  In the present embodiment, the first chromatic area 121 and the second chromatic area 122 are adjacent to each other, and the first area 131 and the second area 132 are the first chromatic area 121 and the second area. They are adjacent to each other following the chromatic region 122. For this reason, it is felt to the human eye that regular reflection light 40 from the printed material 100 has both high gloss and high saturation.

  According to the printed matter 100, it is possible to obtain high saturation while obtaining high glossiness by such an action, and it is possible to artificially express the texture of the metallic color in a pseudo manner.

  In the present embodiment, the second area 132 is an area in which the amount t2 of the clear toner per second unit area is zero, but in the second area 132, the amount of the clear toner per second unit area is If the amount t2 is smaller than the amount t1 of clear toner per first unit area of the first region 131, the amount t2 per second unit area of clear toner in the second region 132 may not be zero. . For example, the second area 132 may have an amount of clear toner per unit area of 10% or less of that of the first area 131. Even if the amount t2 per second unit area of the clear toner in the second area 132 is not zero, the reflection by the second area 132 is weaker than the reflection by the first area 131, and the second chromatic area 122 Because the reflection by the light is stronger than the reflection by the first chromatic region 121, high saturation can be obtained.

  Further, although the saturation S2 of the second chromatic color area 122 is higher than the saturation S1 of the first chromatic color area 121 in the present embodiment, they may be equal to each other. Even in the case where they are equal to each other, since the reflection by the second chromatic area 122 is stronger than the reflection by the first chromatic area 121, high saturation can be obtained.

  It is preferable that the first area 131 and the second area 132 be arranged at a constant cycle. This is to make it difficult for human eyes to perceive color unevenness.

  The area of the first region 131 is preferably larger than the area of the second region 132. This is to enhance the gloss which is one of the features of the metallic gloss. The area ratio of the first region 131 to the second region 132 is not particularly limited, but is, for example, 2: 1. The area ratio may be 3: 1, 3: 2, or 1: 1.

  The resolution of the printed matter 100 is not particularly limited, but is preferably 300 dpi or more, and more preferably 600 dpi or more. This is to make it difficult to distinguish regular reflection light from each area in human vision.

Second Embodiment
Next, a second embodiment will be described. The second embodiment relates to a method of producing a printed matter. FIG. 3 is a schematic view showing an outline of a printed matter to be manufactured according to the second embodiment. FIG. 4 is a flowchart showing a method of producing a printed matter according to the second embodiment. FIG. 5A to FIG. 5F are schematic views showing the method of manufacturing the printed matter according to the second embodiment in the order of steps.

  As shown in FIG. 3, the printed material to be manufactured according to the second embodiment is a certificate of merit 200, which includes a character area 210 and an edge 220 around it. At the edge 220, decorative patterns such as animals and plants are drawn in gold. Here, as an example, the printed material is manufactured at a resolution of 600 dpi. 5A to 5F illustrate a rectangular range included in the design of the edge 220 as an example of a part of the printed matter.

  In the second embodiment, first, as shown in FIG. 5A, the range and color of a metallic gloss area expressing metallic gloss of chromatic color on the recording medium 250 are specified (step S210). For example, the range 251 of the design for decoration is specified, and gold is specified as the color. When drawing a golden pattern, for example, "C: 0%, M: 12%, Y: 57%, K: 6%, CL: 100%" are set. Here, "CL" is a clear gradation value.

  Next, print data is created (step S220).

  In the generation of print data, first, Y is selected from among the chromatic color components (C, M, and Y) constituting gold (step S221). Although a chromatic color component other than Y may be selected, it is preferable to select Y which is closest to the gold gloss color among C, M and Y. Since K is achromatic, it is not an object of selection. As shown in FIG. 5B, the Y pattern 260 matches the range 251.

  Next, the Y pattern 260 is binarized (step S222). Here, as shown in FIG. 5C, it is provisionally assumed that the area ratio between the portion 261 where the gradation value of Y is 0% and the portion 262 where the gradation value of Y is 100% is 2: 1. After changing the gradation value of Y to 33%, the binarization processing is performed to create the binarized pattern 263 of Y. The 0% tone value of Y is an example of a first value, and the 100% tone value of Y is an example of a second value. The area ratio between the portion 261 and the portion 262 may be 3: 1, 3: 2, or 1: 1.

  Next, as shown in FIG. 5D, the tone value of the portion 272 overlapping the portion 262 of the CL tone value is changed from 100% to 0%, and the tone of the portion 271 overlapping the portion 261 of the CL tone value. The value remains at 100%. In this way, clear toner layer data is created in which a clear tone value of 100% is set in the portion 271 overlapping the portion 261 and a clear tone value of 0% is set in the portion 272 overlapping the portion 262 ( Step S223).

  Next, as shown in FIG. 5E, the Y gradation value of the portion 261 is changed from 0% to 36%. In plan view, 2/3 of the chromatic toner layer 120 is the first chromatic area 121, 1/3 is the second chromatic area 122, and the Y gradation value of the second chromatic area 122 is 100. This is because the average value of the gradation values of Y in the entire metallic glossy area is made close to the gradation value before binarization while being%. That is, while the binarization is still performed, the average value of the gradation value of Y in the entire metallic gloss area is 33%, but the average value of the gradation value of Y is changed by changing the gradation value to 36%. The value can be about 57%. In this manner, chromatic toner layer data is created in which the average value of the gradation values in the entire metallic gloss area of Y is changed so as to approach the gradation value before binarization (step S224). The tone value of the portion 262 may be changed without changing the tone value of the portion 261, as long as the average value is made close to the tone value before binarization, both of the portion 261 and the portion 262 The tone value of may be changed. However, in order to approximate the average value to the tone value before binarization while obtaining high saturation, it is preferable to change only the tone value of the portion 261 provisionally set to 0%.

  Thus, print data is created (step S220). Note that, for the colors (C, M, and K) other than Y selected in step S221, the gradation value specified in step S210 is used as it is. Therefore, in this print data, the gradation values of the first chromatic color area 121 are “C: 0%, M: 12%, Y: 36%, K: 6%”, and the second chromatic color area 122 The gradation value of is “C: 0%, M: 12%, Y: 100%, K: 6%”. Further, the gradation value of the first area 131 is “CL: 100%”, and the gradation value of the second area 132 is “CL: 0%”.

  After the print data is created, a chromatic color toner layer is formed on the recording medium 250 based on the print data using the image forming apparatus (step S231), and a clear toner layer is formed on the chromatic color toner layer ( Step S232). As a result, as shown in FIG. 5F, from the area 281 where the first chromatic area 121 and the first area 131 overlap and the area 282 where the second chromatic area 122 and the second area 132 overlap. The following pattern 283 is printed on the recording medium 250 (step S230).

  In this way, printed matter can be produced. Then, the pattern 283 formed on the recording medium 250 can artificially express a gold metallic luster.

  The binarization pattern is not limited to a pattern in which two types of areas are arranged in one direction, but may be a pattern in which two types of areas are arranged in two directions orthogonal to each other. That is, the binarization pattern may be a lattice pattern.

Third Embodiment
Next, a third embodiment will be described. The third embodiment relates to an image forming apparatus suitable for implementing the method for producing a printed matter according to the second embodiment. FIG. 6 is a block diagram showing the hardware configuration of the image forming apparatus according to the third embodiment.

  The image forming apparatus 300 according to the third embodiment includes, for example, a central processing unit (CPU) 301, a random access memory (RAM) 302, a read only memory (ROM) 303, a storage unit 304, a network I / F 305, and an operation unit. A scanner 307, a printer 308, an image memory 309, a wireless communication apparatus 310, and a bus 311 are included.

  The CPU 301 is an arithmetic device that implements the functions of the image forming apparatus 300 by reading programs and data stored in the ROM 303, the storage unit 304, and the like on the RAM 302 and executing processing. The RAM 302 is a volatile memory used as a work area or the like of the CPU 301. The ROM 303 is a non-volatile memory that can hold programs and data even after the power is turned off.

  The storage unit 304 is, for example, a large-capacity storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and stores an OS (Operation System), an application program, various data, and the like. A network I / F 305 is a communication interface for connecting the image forming apparatus 300 to a network. The operation unit 306 is, for example, a display input unit such as a touch panel that combines an input device for receiving an input operation of a user and a display device such as a liquid crystal display (LCD).

  The scanner 307 is a reading device that reads an image from a document and converts it into image data. The printer 308 is a printing device that prints image data. An image memory 309 is a memory used as a work area in image processing in image reading, printing, copying, and the like.

  The wireless communication device 310 is a communication device that communicates with a computer, a mobile phone, or the like by wireless communication such as wireless LAN (Local Area Network), wireless PAN (Personal Area Network), infrared communication, sound wave communication, and the like. The bus 311 is connected to the above-described components, and transmits an address signal, a data signal, various control signals, and the like.

  Next, the functional configuration of the image forming apparatus 300 will be described. As described above, the CPU 301 implements the functions of the image forming apparatus 300 by reading programs and data stored in the ROM 303, the storage unit 304, and the like on the RAM 302 and executing processing. FIG. 7 is a diagram showing a functional configuration of the image forming apparatus 300 according to the third embodiment. The image forming apparatus 300 includes an acquisition unit 351, a print data creation unit 352, and a printing unit 353, as shown in FIG.

  The acquisition unit 351 acquires input data indicating the range and color of a metallic gloss area that expresses metallic gloss of chromatic color on a recording medium. Input data can be obtained via the network I / F or the wireless communication device 310. A slot for an external recording medium may be provided in the image forming apparatus 300, and input data may be acquired from an external recording medium such as an IC card, a flexible disk, a CD, a DVD, an SD memory card, or a USB memory. The print data creation unit 352 creates print data using the image memory 309 and the like along step S220. The printing unit 353 performs printing using the printer 308 or the like along step S230.

  When the input data acquired by the acquisition unit 351 is prepared, the image forming apparatus 300 performs the same process as the method of manufacturing the printed matter according to the second embodiment, and manufactures the printed matter that artificially expresses the texture of the metallic color. can do.

  The color of the metallic luster region is not limited to gold, and may be copper, bronze or the like. For example, since copper color is reddish, when expressing the texture of copper color in a pseudo manner, the proportion of magenta in the base color is increased, and the chromatic color component to be subjected to binarization of the gradation value is magenta and Do. Further, depending on the color to be expressed, two or more types of chromatic color components to be subjected to binarization of gradation values may be used.

  Further, the clear toner layer may include three or more regions having different amounts of clear toner per unit area, and the chromatic toner layer may include three or more regions having different saturation. In this case, the amount of clear toner per unit area in the clear toner layer is preferably smaller in the area overlapping with the area where the chroma of the chromatic color toner layer is high, and the chroma is the highest as in the first embodiment. The area overlapping the area is preferably an area where the amount of clear toner per unit area is zero. The amount of clear toner per unit area in this case is an amount obtained by dividing the amount of clear toner in that area by the area of the corresponding area.

  In these embodiments, a clear toner is used as a transparent material having glossiness, and a chromatic toner is used as a colored color material, but in the present invention, the color material is not limited to a toner. For example, in the present invention, a coloring material such as ink may be used.

DESCRIPTION OF SYMBOLS 10 light 21, 31, 32, 40 regular reflection light 100 printed matter 110 recording medium 120 chromatic color toner layer 121 1st chromatic color area | region 122 2nd chromatic color area | region 130 clear toner layer 131 1st area | region 132 2nd area | region 200 certificate 210 character area 220 edge 250 recording medium 251 area of metallic gloss area 260 Y pattern 261, 262 part 263 binarized pattern 271, 272 part 281, 282 area 283 rectangular pattern 300 image forming apparatus 351 acquisition part 352 Print data creation unit 353 Printing unit

JP, 2016-066830, A

Claims (20)

A recording medium,
A chromatic color layer formed on the recording medium and formed of a colored material;
A first region, which is a transparent material layer present on the chromatic layer and formed of a transparent material;
A second region which is a transparent material layer present on the chromatic layer and formed by the transparent material;
Have
The second region is formed by an amount per first unit area obtained by dividing an amount of the transparent material forming the first region by an area of the first region, and an area of the second region. A printed matter characterized in that the amount per second unit area divided by the amount of the transparent material is different. The chromatic layer has a first chromatic area and a second chromatic area,
The saturation of the second chromatic region is higher than the saturation of the first chromatic region,
The first area is above the first chromatic area,
The second area is above the second chromatic area,
The printed matter according to claim 1, wherein the amount per first unit area is larger than the amount per second unit area.   The printed matter according to claim 1 or 2, wherein the amount per unit area of the second unit area of the transparent material in the second region is zero.   The printed matter according to any one of claims 1 to 3, wherein the first area and the second area are arranged at a constant cycle. Identifying the range and color of a metallic gloss area that expresses chromatic metallic gloss on a recording medium;
Creating print data based on the specified range and color;
A step of forming a chromatic color layer on the recording medium on the recording medium using an image forming apparatus based on the print data, and forming a transparent material layer having glossiness on the chromatic color layer using a transparent material When,
Have
The print data is a first value in which the transparent material layer has a first region and a second region, and the area of the first region is divided by the amount of the transparent material forming the first region. Transparent material layer data showing that the amount per unit area and the amount per second unit area obtained by dividing the amount of the transparent material forming the second region by the area of the second region are different A method of producing a printed matter, comprising: In the step of creating the print data, the chromatic layer includes a first chromatic area and a second chromatic area, and a saturation of the second chromatic area is the first color. Creating a chromatic layer data that is higher than the saturation of the chromatic area;
In the transparent material layer data, the first area is formed on the first chromatic color area, and the second area is formed on the second chromatic color area. The method according to claim 5, wherein the amount per unit area indicates that the amount per second unit area is larger. In the process of creating the print data,
Selecting one or more chromatic components constituting the color of the metallic luster area;
For the selected chromatic color component, a first chromatic color gradation value is set in the first chromatic color area, and a second color area higher than the first chromatic color gradation value in the second chromatic color area. Setting a chromatic gradation value;
Setting a first transparent tone value in the first area, and setting a second transparent tone value lower than the first transparent tone value in the second area;
The method for producing a printed matter according to claim 6, characterized in that In the process of creating the print data,
Selecting one or more chromatic components constituting the color of the metallic luster area;
Binarizing a gradation value of the selected chromatic color component into a first value and a second value higher than the first value to create a binarized pattern;
As the transparent material layer data, a first transparent gradation value is set in a portion overlapping with the portion of the first value in the binarized pattern, and the second portion is overlapped with the portion of the second value. Creating data in which a second transparent tone value lower than the 1 transparent tone value is set;
At least one of the first value or the second value is set so that the average value of the gradation values of the selected chromatic color component over the entire metallic gloss area approaches the gradation value before the binarization. Creating a modified chromatic layer data;
A method of producing a printed matter according to claim 5, characterized in that   The method according to any one of claims 5 to 8, wherein the amount per unit area of the second transparent material in the second region is zero.   The method for producing a printed matter according to any one of claims 5 to 9, wherein the first area and the second area are arranged at a constant cycle. An acquisition unit for acquiring input data indicating a range and a color of a metallic gloss area that expresses chromatic metallic gloss on a recording medium;
A print data creation unit that creates print data from the input data;
A printing unit for forming a chromatic color layer of a colored material on the recording medium based on the print data, and forming a transparent material layer having glossiness on the chromatic color layer of a transparent material;
Have
The print data is a first value in which the transparent material layer has a first region and a second region, and the area of the first region is divided by the amount of the transparent material forming the first region. Transparent material layer data showing that the amount per unit area and the amount per second unit area obtained by dividing the amount of the transparent material forming the second region by the area of the second region are different An image forming apparatus comprising: In the print data creation unit, the chromatic layer includes a first chromatic area and a second chromatic area, and the saturation of the second chromatic area is the first chromatic color. Create chromatic layer data that is higher than the saturation of the area,
In the transparent material layer data, the first area is formed on the first chromatic color area, and the second area is formed on the second chromatic color area. The image forming apparatus according to claim 11, wherein the amount per unit area indicates that the amount per second unit area is larger. The print data creation unit
Selecting one or more chromatic components constituting the color of the metallic luster area;
For the selected chromatic color component, a first chromatic color gradation value is set in the first chromatic color area, and a second color area higher than the first chromatic color gradation value in the second chromatic color area. Set the chromatic gradation value,
A first transparent tone value is set in the first area, and a second transparent tone value lower than the first transparent tone value is set in the second area. 12. The image forming apparatus according to 12. The print data creation unit
Selecting one or more chromatic components constituting the color of the metallic luster area;
A binarization pattern is created by performing a process of binarizing the gradation value of the selected chromatic color component into a first value and a second value higher than the first value.
As the transparent material layer data, a first transparent gradation value is set in a portion overlapping with the portion of the first value in the binarized pattern, and the second portion is overlapped with the portion of the second value. Create data in which the second transparent tone value lower than the 1 transparent tone value is set,
At least one of the first value or the second value is set so that the average value of the gradation values of the selected chromatic color component over the entire metallic gloss area approaches the gradation value before the binarization. The image forming apparatus according to claim 11, wherein the modified chromatic layer data is created. On the computer
Obtaining input data indicating the range and color of a metallic gloss area that expresses chromatic metallic gloss on a recording medium;
Creating print data from the input data;
Causing a chromatic color layer to be formed on the recording medium on the recording medium based on the print data, and forming a transparent material layer having glossiness on the chromatic color layer using a transparent material;
To run
The print data is a first value in which the transparent material layer has a first region and a second region, and the area of the first region is divided by the amount of the transparent material forming the first region. Transparent material layer data showing that the amount per unit area and the amount per second unit area obtained by dividing the amount of the transparent material forming the second region by the area of the second region are different A program characterized by including. In the step of creating the print data, the chromatic layer includes a first chromatic area and a second chromatic area, and the saturation of the second chromatic area is the first color. Creating a chromatic layer data that is higher than the saturation of the chromatic area;
In the transparent material layer data, the first area is formed on the first chromatic color area, and the second area is formed on the second chromatic color area. The program according to claim 15, wherein the amount per unit area indicates that the amount per second unit area is larger. In the step of creating the print data,
Selecting one or more chromatic components constituting the color of the metallic luster region;
For the selected chromatic color component, a first chromatic color gradation value is set in the first chromatic color area, and a second color area higher than the first chromatic color gradation value in the second chromatic color area. Setting a chromatic gradation value;
Setting a first transparent tone value in the first area, and setting a second transparent tone value lower than the first transparent tone value in the second area;
The program according to claim 16, comprising: In the step of creating the print data,
Selecting one or more chromatic components constituting the color of the metallic luster region;
Binarizing a gradation value of the selected chromatic color component into a first value and a second value higher than the first value to create a binarization pattern;
As the transparent material layer data, a first transparent gradation value is set in a portion overlapping with the portion of the first value in the binarized pattern, and the second portion is overlapped with the portion of the second value. Creating data in which a second transparent tone value lower than a transparent tone value of 1 is set;
At least one of the first value or the second value is set so that the average value of the gradation values of the selected chromatic color component over the entire metallic gloss area approaches the gradation value before the binarization. Creating modified chromatic layer data;
The program according to claim 15, comprising:   The program according to any one of claims 15 to 18, wherein an amount per unit area of the second transparent material in the second region is zero.   The program according to any one of claims 15 to 19, wherein the first area and the second area are arranged at a constant cycle.

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