JP6976525B2 - How to create data for special latent image pattern forming body and special latent image pattern forming body - Google Patents

Description

The present invention is a security printed matter that requires the prevention of forgery and falsification of securities such as stock certificates and bonds, banknotes, passports, various certificates, important documents, etc., by observing the security printed matter with the naked eye. The present invention relates to a special latent image pattern forming body in which a full-color latent image pattern can be visually recognized and a method for creating the data thereof.

Due to the nature of security printed matter, it is required that it is difficult to forge or copy. In addition, in order to make it easy to visually determine whether or not forgery or duplication has occurred, by observing (seeing through) the printed matter by transmitting light, the different patterns printed on the front and back can be seen. An anti-counterfeiting technique called a front-back synthetic pattern that is synthesized and appears as a meaningful pattern is known.

Security printed matter with front and back synthetic patterns The method of preventing forgery is a simple synthetic pattern as seen in foreign banknotes, not a latent image of those synthetic patterns, but a partial element of the synthetic pattern. It is divided into two parts and printed on the front and back sides of the printed matter.

In addition, as a technique that enables the latent image of the front and back composite patterns, the applicant prints various patterns on either the front or back of the object to be printed, which transmits light, using halftone dots or halftone dots, and on the other. Various patterns consisting of image lines with patterns that should be latent images such as ten thousand lines and halftone dots are printed so that the print positions match each other, and when this printed matter is viewed through with light, the patterns on the front and back are combined. An application has been filed for a technique in which a latent image appears as a continuous gradation image (see, for example, Patent Document 1).

In addition, in order to make up for the lack of information on the conventional front and back composite patterns, the applicant can print the separated images of the three primary colors of cyan, magenta, and yellow obtained by process color separation or artificial color coding for each color. It is applied as a latent image of various screen patterns such as dots and halftone dots, and the image with these three latent images is printed with process ink on one of the front and back sides of the object to be printed, and the other is latent. A latent image characterized by printing various screen patterns such as halftone dots and halftone dots using each color without an image with process ink in combination with the printing position of one of the same printing colors appears as a color image. A front and back pattern synthetic printed matter has already been filed (see, for example, Patent Document 2).

Japanese Patent Application No. 3-332716 Japanese Patent No. 3362171

However, in the front-back composite pattern printed matter of Patent Document 1, although the front-back composite pattern having continuous gradation is visible, the image that can be expressed is monotone, and the latent image is given complicated information that the color change of the color image has. There was a problem that it could not be done.

Further, although the front and back synthetic pattern printed matter of Patent Document 2 can be provided with a full-color front and back synthetic pattern, a screen pattern in which a latent image is applied to one surface of the base material is formed, and a screen pattern is formed on the other surface. A screen pattern that does not have a latent image is formed at the position that overlaps with the position, and the full-color front and back composite pattern is visualized by the overlap of these two patterns. There was a problem that was not reproduced.

Further, in the front and back composite pattern printed matter of Patent Documents 1 and 2, since the front and back printing plate surfaces are prepared in advance and the front and back surfaces are printed, a different image is formed for each sheet. There was a problem that it could not be applied as variable printing.

The present invention has been made in view of the above-mentioned problems, and when forming a full-color front-back composite pattern, a positive image and a negative image forming a latent image pattern are formed on a light-transmitting substrate. By forming a concealing layer on it and a camouflage pattern on it, a special latent image pattern forming body that is not affected by printing misalignment and can be variablely printed using a digital printing machine and its data. It is about how to create.

The special latent image pattern forming body of the present invention has a latent image structure in which a latent image pattern, a concealing layer, and a camouflage pattern are laminated in this order on at least a part of a light-transmitting substrate, and the latent image pattern has a latent image pattern. , The latent image lines are regularly arranged in a perennial pattern with a predetermined pitch and image width, and the concealing layer has light transmission and has a color different from that of the latent image pattern and the camouflage pattern. In addition, a concealing element that conceals the latent image pattern or camouflage pattern formed on the other surface side when observed from one surface side of the substrate under reflected light is formed, and the camouflage pattern is a latent image line. Camouflage lines arranged in a universal line with the same pitch and line width are formed in the first color, and the latent image lines are positives that form a positive image having the colors of the base color image of the latent image pattern. It consists of an image and a negative image that forms a negative image in which the positive image is gradation-inverted. The positive image is an achromatic second color consisting of i) a base material and a process color different from the first color. And have a colored third color corresponding to the color of the base color image, or ii) have a special fifth color corresponding to the color of the base color image different from the substrate and the first color. In the case of i), the negative stroke has a fourth color consisting of a second color and a process color of which the third color is a complementary color, or in the case of ii), the fifth color is a complementary color. It has a sixth color consisting of spot colors, the positive and negative lines are formed adjacently with the same line width, and either the latent image line or the camouflage line is the base color image. The negative and camouflage lines, which are formed in a relief shape corresponding to continuous gradation and constitute the latent image line, are formed so that at least a part of them overlap each other, and the latent image structure is formed on one of the base materials. When observed from the surface side under reflected light, the latent image pattern is observed in the second color of uniform density, or the camouflage pattern is observed in the first color of uniform density, and the substrate When observed from the other surface side under reflected light, the latent image pattern is observed in the second color of uniform density, or the camouflage pattern is observed in the first color of uniform density and latent. When the image structure is observed under transmitted light, the negative image line is concealed by the camouflage image line, so that the positive image is visually recognized as a latent image pattern.

Further, the latent image pattern and the camouflage pattern in the special latent image pattern forming body of the present invention are special latent image pattern forming bodies characterized in that they are formed with an area ratio of 50%.

Further, the present invention is a method for creating data for a special latent image pattern forming body in which the special latent image pattern forming body is the above-mentioned i) and a relief-shaped image line is formed by the latent image drawing line. The basic color image setting process of inputting the basic color image from the outside or importing it from a pre-registered database to set the basic color image, and the basic color image divided into multiple areas, and the average density of each area. A region averaging step of performing region averaging to generate a region averaging image, and a gradation inversion of the first multivalued monochrome image obtained by converting the region averaging image into a multivalued monochrome image and the first multivalued monochrome image. A multi-valued monochrome image generation step for producing 2 multi-valued monochrome images, a positive 1-1 binary image in which a first pattern file is applied to a first multi-valued monochrome image, and a second The first binary image generation step of producing a negative 1-2 binary image by applying the second pattern file to the multivalued monochrome image, and the 1-1 binary image and 1-2. From the basic mask image generation step of synthesizing the two-valued images so as to be adjacent to each other and the basic mask image obtained in the basic mask generation step, a lower slit mask for a positive image and an upper slit mask for a negative image are generated. The first multi-valued color information in which the basic multi-valued color information indicating the density value of each pixel of the image after the region averaging step is gradation-inverted for the upper and lower mask image generation step and the negative image line. The first multi-valued color image having the first multi-valued color information is produced by creating the first and second multi-valued color information whose hue is inverted, averaging them to a density value of 50%, and synthesizing them. The second multi-valued color information, which is generated and the brightness of the basic multi-valued color information indicating the density value of each pixel of the image after the region averaging step is inverted for the positive image, is produced and used as the basis. A multi-valued color image generation step of generating a second multi-valued color image as the second multi-valued color information by averaging and synthesizing the multi-valued color information and a density value of 50%, and a first multi-valued image. A mask processing step of applying an upper slit mask to a color image and a lower slit mask to a second multivalued color image, and negative strokes and a second multivalued color image constituting the first multivalued color image. It is a method of creating data for a special latent image pattern forming body including a colored latent image pattern generation step of synthesizing so that the positive image lines constituting the above are adjacent to each other.

Further, the present invention is a method for creating data for a special latent image pattern forming body in which the special latent image pattern forming body is the above-mentioned ii) and a relief-shaped image line is formed by the latent image drawing line. The basic color image setting process of inputting the basic color image from the outside or importing it from a pre-registered database to set the basic color image, and the basic color image divided into multiple areas, and the average density of each area. A third area averaging step of performing image conversion and generating an area averaging image, a color area extraction process of extracting a specific color area from the area averaging image, and a third of the specific colors extracted in the color area extraction process. A multi-value monochrome positive image in which the first tone curve is applied to the multi-value monochrome image, a multi-value monochrome gradation conversion process for generating a multi-value monochrome negative image in which the second tone curve is applied, and a multi-value monochrome positive image. A 2-1 binary image to which the third pattern file and the lower slit mask are applied, and a 2-2 binary image to which the third pattern file and the upper slit mask are applied are generated, and multivalued monochrome is generated. For special colors that generate a 3-1 binary image to which a fourth pattern file and a lower slit mask are applied to a negative image, and a 3-2 binary image to which a fourth pattern file and an upper slit mask are applied. The binary image generation step, the first synthesis step of the binary image for synthesizing the 2-1 binary image and the 2-2 binary image, and the 3-1 binary image and the third 3-. Combining the binary images of 2 The composite image for the positive image obtained in the second composite step of the binary image, the composite image for the positive image obtained in the first composite step, and the composite image for the negative image obtained in the second composite step. It is a method of creating data for a special latent image pattern forming body including a special latent image pattern generation step of synthesizing an image.

Further, the present invention is a method for creating data for a special latent image pattern forming body in which the special latent image pattern forming body is the above-mentioned i) and a relief-shaped image line is formed by a camouflage drawing line. , The basic color image setting process in which the basic color image is input from the outside or imported from the database registered in advance to set the basic color image, and the basic color image is divided into multiple areas and the density is averaged for each area. And the area averaging step of generating the area averaging image, and the second method in which the first multi-value monochrome image obtained by converting the area averaging image into a multi-value monochrome image and the first multi-value monochrome image are gradation-inverted. A multi-valued monochrome image generation step for producing a multi-valued monochrome image, a positive 1-1 binary image in which a first pattern file is applied to a first multi-valued monochrome image, and a second multi-valued image. The first binary image generation step of producing a negative 1-2 binary image by applying the second pattern file to the value monochrome image, and the 1-1 binary image and the 1-2. The basic multi-valued color information indicating the density value of each pixel of the image after the region averaging step was inverted for the white camouflage pattern generation step of synthesizing the binary images so as to be adjacent to each other and the negative image line. The first multi-valued color information is provided by creating the first-first multi-valued color information and the first-two multi-valued color information whose hue is inverted, averaging them to a density value of 50%, and synthesizing them. The first multi-valued color image is generated, and the basic multi-valued color information indicating the density value of each pixel of the image after the region averaging step is inverted in brightness for the positive image. A multi-valued color image that produces a second multi-valued color image as the second multi-valued color information by creating value color information, averaging it with the basic multi-valued color information and synthesizing it to a density value of 50%. The generation step, the mask processing step of applying the upper slit mask to the first multi-valued color image, and the lower slit mask to the second multi-valued color image, and the negative image constituting the first multi-valued color image. It is a method of creating data for a special latent image pattern forming body including a colored latent image pattern generation step of synthesizing lines and positive image lines constituting a second multi-valued color image so as to be adjacent to each other.

Further, the present invention is a method for creating data for a special latent image pattern forming body in which a relief-shaped image is formed by a camouflage drawing line in the case where the special latent image pattern forming body is the above-mentioned ii). , The basic color image setting process in which the basic color image is input from the outside or imported from a pre-registered database to set the basic color image, and the basic color image is divided into multiple areas and the density is averaged for each area. A region averaging step of generating a region averaging image, a color region extraction step of extracting a specific color region from the region averaging image, and a third multiple of specific colors extracted in the color region extraction step. A multi-value monochrome positive image in which the first tone curve is applied to the value monochrome image, a multi-value monochrome gradation conversion process for generating a multi-value monochrome negative image in which the second tone curve is applied, and a multi-value monochrome positive image. A 2-1 binary image to which the fifth pattern file is applied and a 3-1 binary image to which the sixth pattern file is applied are generated, and the seventh pattern file is added to the multi-value monochrome negative image. The special color binary image generation step of generating the applied 2-2 binary image and the 3-2 binary image to which the 8th pattern file is applied, and the 2-1 binary image and the second. The first synthesis step of the binary image for synthesizing the binary image of 3-1 and the second synthesis step of the binary image for synthesizing the binary image of 2-2 and the binary image of 3-2. A special latent image including a composite image for a positive image obtained in the first compositing step and a special latent image pattern generation step for compositing a composite image for a negative image obtained in the second compositing step. This is a method for creating data for a pattern forming body.

Further, it is a method of creating data for a special latent image pattern forming body, which comprises a saturation adjusting step of increasing the saturation of a base color image before the region averaging step.

Further, after the region averaging step, the region averaging image is provided with a horizontal blurring treatment step for blurring the region averaging image in order to make the boundaries of each region inconspicuous in the horizontal direction of the substrate surface. This is a method for creating data for a special latent image pattern forming body.

Since the special latent image pattern forming body of the present invention can visually recognize a full-color continuous gradation image with the naked eye without using a special discriminator or the like, it is possible to give a rich color feeling to the latent image pattern. rice field.

Further, since the special latent image pattern forming body of the present invention forms the positive image and the negative image of the latent image pattern by the special color ink, the full-color latent image pattern does not feel uncomfortable even if some printing misalignment occurs. Is visible, and the latent image line and the hidden image line are overlapped on one surface of the base material, so that the degree of freedom in printing suitability is improved and the reproducibility of the latent image pattern is improved. The effect of being high was obtained.

The figure which shows an example of the special latent image pattern forming body of this invention. The development view of the special latent image pattern forming body of this invention. The figure which shows the effect of the special latent image pattern forming body of this invention. A block diagram of a device for creating a special latent image pattern forming body. A flowchart of a method for creating data for a special latent image pattern forming body. The figure which shows the base color image. The figure which shows the image which performed the area averaging process on the base color image. The figure which shows the image which applied the blur processing to the image which performed the area averaging processing. The figure which shows the 1st and 2nd multi-valued black-and-white images. The figure which shows the 1-1 binary image which applied the 1st pattern file to the 1st multi-valued black-and-white image. The figure which shows the binary image of 1-2 which applied the 2nd pattern file to the 2nd multi-valued black-and-white image. The figure which shows the basic mask image (white camouflage pattern) which combined the binary image of 1-1 and the binary image of 1-2. The figure which shows the 1st multi-valued color image. The figure which shows the 2nd multi-valued color image. The figure which shows the density value of a pixel in multi-valued color information. The figure which shows the negative drawing which has the 4th color of a complementary color relation. The figure which shows the positive image which has the third color of a complementary color relation. The figure explaining the colored latent image pattern which constitutes a special latent image pattern forming body. The figure which shows the arrangement relation of a camouflage drawing line and a colored latent image pattern. The flowchart which shows the method of making a latent image pattern using a spot color. The figure which shows the 3rd multi-valued black-and-white image which extracted the skin color from the image which performed the area averaging process. The figure which applied the tone curve to the 3rd multi-valued monochrome image, and generated the multi-valued monochrome positive image and the multi-valued monochrome negative image. The figure which shows the kind of the pattern file applied to generate the image for skin color. The figure which shows the 2nd binary image which expresses the skin color which applied the pattern file. The figure which shows the 3rd binary image which has a complementary color relationship with the 2nd binary image. The figure which shows the colored latent image pattern for a spot color. The figure which shows the state which the front and back patterns are printed on the colorless transparent base material respectively. The figure which shows the case of observing with normal reflected light, and the case of observing by transmitting light from the back surface. The development view of the special latent image pattern forming body in 3rd Embodiment. The figure which shows the effect of the special latent image pattern forming body in 3rd Embodiment. A block diagram of a device for creating a special latent image pattern forming body. A flowchart of a method for creating data for a special latent image pattern forming body. The figure which shows the 1st multi-valued color image. The figure which shows the 2nd multi-valued color image. The figure explaining the colored latent image pattern which constitutes a special latent image pattern forming body. The figure which shows the arrangement relation of a camouflage drawing line and a colored latent image pattern. The flowchart which shows the method of making a latent image pattern using a spot color. The figure which shows the kind of the pattern file applied to generate the image for skin color. The figure which shows the 2nd binary image which expresses the skin color which applied the pattern file. The figure which shows the 3rd binary image which has a complementary color relationship with the 2nd binary image. The figure which shows the colored latent image pattern for a spot color. The figure which shows the state which the front and back patterns are printed on the colorless transparent base material respectively. The figure which shows the case of observing with normal reflected light, and the case of observing by transmitting light from the back surface.

A mode for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described below, and includes various other embodiments within the scope of the technical idea in the claims.

(First Embodiment)
FIG. 1 is an example of a booklet including a special latent image pattern forming body (hereinafter referred to as “forming body”) (1), which is the object of the present invention, and a base color image (15) thereof. The meaning of the "forming body" (1) in the present invention will be described later. In FIG. 1, taking a passport booklet as an example, a plurality of recording pages are integrated between the front cover and the back cover by a binding portion, and the back cover page (base material) (2) of the front cover is a base color image. The owner's face image (3), personal information (4), booklet number (5) obtained from (15), and a special latent image pattern (hereinafter referred to as "special latent image") which is a feature of the present invention. ) (6) is formed. The passport booklet including the formed body (1) shown in FIG. 1 is only an example, and does not necessarily have to have the same design (arrangement).

The size of the special latent image (6) may be formed over the entire base material (2), but considering the actual utilization mode, as shown in FIG. 1, one on the base material (2). It is preferable to form a transparent window in the portion. Therefore, the size is not particularly limited as long as it does not affect other patterns, and it will be arranged at least a part on the base material (2).

FIG. 2 is a development view showing the configuration of the special latent image (6) in the first embodiment. The special latent image (6) in the present embodiment comprises an opaque black camouflage drawing line (9) and a colored latent image drawing line (11). The total area ratio of the camouflage image line (9) and the total area area ratio of the latent image image line (11) are 1: 1, and each has an image area ratio of 50%. Therefore, the camouflage line (9) is visually recognized as black as the first color, and the latent image line (11) is visually recognized as halftone gray. In the first embodiment, the camouflage line (9) is formed in black, but depending on the configuration of the latent image pattern (10), the camouflage line (9) may be white (colorless). You can also.

The base material (2) is not particularly limited as long as each of the camouflage pattern (8) and the latent image pattern (10) can be observed with transmitted light, but is a paper base material having high light transmission or a colorless and transparent plastic material. Is preferable.

The effect of the formed body (1) in this embodiment is shown in FIG. First, a latent image line (11) is formed on the base material (2), a concealing layer (12) is formed so as to cover the latent image line (11), and the latent image line (11) is equal to the latent image line (11). It has a camouflage drawing line (9) with a position. Then, as shown in FIG. 3A, when the observer (16) observes under reflected light from directly above the base material (2), the special latent image (6) is obtained. , It can be visually recognized as the black color forming the camouflage image line (9), and as shown in FIG. 3 (b), the light emitted from the light source (56) is transmitted to the observer (16) from the opposite side of the base material (2). When observed (through), the latent image portion (7) having continuous gradation can be visually recognized.

(A device for producing a special latent image pattern forming body)
Next, an apparatus for producing the formed body (1) and a method for creating data for the formed body will be described. In the present invention, a base color image (15) having a full color gradation such as a photograph is embedded as a color gradation image in a print pattern as a special latent image (6) composed of image lines, and the color scale is as it is. It relates to a method of creating data for a forming body (1) that can appear as a tone image. As shown in the block diagram of FIG. 4, the manufacturing apparatus of the forming body (1) in the present embodiment includes an input means (M1), an editing means (M2), an output means (M3), a display means (M4), and a communication. It has at least an interface (M5) and a database (M6).

The input means (M1) is composed of a color image input means (M1a) and an information input means (M1b), and the input of the basic color image (15) in the color image input means (M1a) is a digital camera, a scanner, or the like. It is not particularly limited. In addition, images, texts, and the like can be obtained from a database server registered in advance by using a database (M6) or a communication interface (M5).

On the other hand, the information input means (M1b) is input from a keyboard or the like, or from an external database server input in advance by the numerical information and communication interface (M5) registered in the same personal computer as the database (M6). Numerical information can be obtained. This numerical information is an output resolution or the like described later.

The editing means (M2) is composed of a preprocessed image generation means (M2a), a colored latent image pattern generation means (M2b), and a mask image generation means (M2c). The preprocessed image generation means (M2a) generates a preprocessed image by the color image, numerical information, pattern file, etc. obtained from the communication interface (M5) or the database (M6), and the colored latent image pattern generation means (M2b). In, a colored latent image pattern (10) is generated, and in the mask image generation means (M2c), a camouflage pattern (8) is generated.

The output means (M3) is a printing device or the like capable of printing an image from a computer such as an inkjet printer, and is not particularly limited. The display means (M4) is not particularly limited to a personal computer monitor, a dedicated monitor, or the like. The communication interface (M5) is not particularly limited to USB, RS-232C, IEEE1394, and the like.

Next, the method of creating the data for the formed body (1) will be described in detail with reference to FIG. The data creation method consists of three major processing flows surrounded by the alternate long and short dash line. The pre-processing flow is executed by the pre-processed image generation means (M2a), the colored latent image pattern generation flow is executed by the colored latent image pattern generation means (M2b), and the mask image generation flow is the mask image generation means (M2c). ) Is executed.

(Pretreatment flow)
First, the pretreatment flow will be described. Step 1 for setting a color image sets, for example, a basic color image input from a digital camera or the like. The base color image (15) in the present embodiment is a multi-valued color image consisting of the face photograph shown in FIG. 6, for example, a 24-bit RGB format, and has an image resolution of 1,200 dpi and an image size of 1,535 ×. It was set to 1,535 Pixel.

If necessary, a saturation adjustment step for increasing the saturation of the base color image (15) of Step 1-2 may be added. The reason for increasing the saturation is to make the color image appear more vividly when the base material (2) shown in FIG. 3 (b) is observed under transmitted light.

Next, in the region averaging processing step of Step 2, the base color image (15) is converted into a region averaging image (19) composed of a multi-valued color image by the region averaging process. As shown in FIG. 7, the area averaging process is performed by averaging the pixel densities in the vicinity of the number of horizontal pixels (v) and the number of vertical pixels (h) in the base color image (15). be. In this embodiment, the number of horizontal pixels (v) is 24Pixels and the number of vertical pixels (h) is 48Pixels. The number of vertical pixels (h) corresponds to the pitch (P) of the special latent image (6) described later.

Further, as shown in FIG. 8, the area averaging image (19) converted in Step 2 is subjected to horizontal blurring processing to blur the vicinity of a predetermined number of pixels in the direction of the number of horizontal pixels (v). A horizontal blurring processing step of Step 2-2 may be added to convert the horizontal blurring processing image (20) consisting of a color image. The horizontal blurring process is a process for improving the quality of the latent image pattern (10) and the camouflage pattern (8), which will be described later, and is not necessarily a required process. In the present embodiment, 24Pixel horizontal blurring treatment is performed in the direction of the number of horizontal pixels (v).

The area averaging image (19) or the horizontal blur processing image (20) shifts to the colored latent image pattern generation flow and the mask image generation flow, and each processing is automatically executed.

(Mask image generation flow)
Next, the mask image generation flow will be described. Step 3 generates two multi-valued black-and-white images as a multi-valued black-and-white image generation step. The first image is, for example, 8 bits, as shown in FIG. 9 (a), the area averaging image (19) converted in Step 2 or the horizontal blurring processed image (20) converted in Step 2-2. It is converted into a first multi-valued monochrome image (21) such as a grayscale format.

In the second image, the gradation inversion of the first multi-valued monochrome image (21) generated as the first image, that is, the pixel density value (gray level) of each is inverted, and FIG. 9B is shown. As shown in the above, the first multi-valued monochrome image (21) is converted into a negative-shaped second multi-valued monochrome image (22). For example, when the first multi-valued monochrome image (21) is in the 8-bit format, the density value (gray level of 0 to 255) of each pixel of the entire image of the _{multi-valued information (D 0) is converted by the formula 1.} By doing so, it becomes multi-valued information (D _{1) whose gradation is inverted.}

(Formula 1)

Next, in Step 4, as the first binary image generation step, the first pattern file (A) as shown in FIG. 10 is applied to the first multi-value black-and-white image (21) generated in Step 3. do. The first pattern file (A) is a multi-valued image also called a critical value array image, and the number of vertical pixels is the number of vertical pixels (h) used when averaging the pixel densities in the vicinity in Step 2. In the present embodiment, it is set to 48 Pixels. By applying the first pattern file (A) to the entire first multi-valued black-and-white image (21), the positive 1-1 binary image (23) shown in FIG. 10 is generated. ..

At the same time, the second pattern file (B) as shown in FIG. 11 is applied to the negative-shaped second multi-valued monochrome image (22) generated by Step 3. The second pattern file (B) is a multi-valued image, which is also called a critical value array image, like the first pattern file (A), and the number of vertical pixels is averaged at the pixel density in the vicinity in Step 2. It is equal to the number of vertical pixels (h) used in this case, and is set to 48Pixel in this embodiment. By applying the second pattern file (B) to the entire negative-shaped second multi-valued monochrome image (22), the negative-shaped 1-2 binary image (24) shown in FIG. 11 is obtained. Generated.

Next, in the basic mask image generation step of Step 5, the 1-1 binary image (23) and the 1-2 binary image (24) generated in Step 4 are combined, and the first binary image shown in FIG. 12 is combined. The basic mask image (25), which is a binary image of, is completed. At this time, regarding the composition of the 1-1 binary image (23) and the 1-2 binary image (24), the entire areas showing the respective images are arranged in the same area. , The positive image (40) that constitutes the 1-1 binary image (23) in a positive shape, and the negative image that constitutes the 1-2 binary image (24) in a negative shape. It does not overlap with (41) and is arranged adjacent to each other as shown in the first binary image of FIG.

Next, in the upper and lower mask image generation step of Step 6, the basic mask image (25) generated in Step 5 has vertical pixels in the lower part of the image line in the basic mask image (25) by the upper slit mask image generation step of Step 6-1. The number (h) is reduced by 1/4 pixel. As a result, the upper slit mask image (Q1) shown in FIG. 13 is generated. On the other hand, by the lower slit mask image generation step of Step 6-2, the upper part of the image line in the basic mask image (25) is degenerated by 1/4 pixel of the number of vertical pixels (h). As a result, the lower slit mask image (Q2) shown in FIG. 14 is generated.

(Colored latent image pattern generation flow)
Next, the colored latent image pattern generation flow surrounded by the dotted line in FIG. 5 will be described. In Step 7, as a multi-valued color information conversion step, the basic multi-valued color information (R ₀ , G ₀ , B ₀ ) of the region averaged image (19) or the horizontally blurred image (20) is obtained as a negative image line (13). And it is converted into the multi-valued color information which is the basis of the positive image line (14). First, for the negative image line (13), the gradation inversion of either the area averaging image (19) converted by Step 2 or the horizontal blurring processed image (20) converted by Step 2-2 is performed. Is done. For example, when the region averaging image (19) or the horizontal blur processing image (20) is in the 24-bit RGB format, the density value of each pixel of the entire image of _{the basic multi-valued color information (R 0} , G ₀ , B _0). By converting (gray level from 0 to 255) by the formula 2, the _first multi-valued color information (R 1, G ₁ , B ₁ ) whose gradation is inverted is obtained. That is, when the basic multi-valued color information (R ₀ , G ₀ , B ₀ ) of the basic color image (15) is, for example, the density value of the pixel shown in FIG. 15 (a), the gradation is inverted. The multi-valued color information (R ₁ , G ₁ , B ₁ ) of 1-1 is converted into the pixel density value shown in FIG. 15 (b).

(Formula 2)

Next, the hue inversion of either the area averaging image (19) converted by Step 2 or the horizontal blurring processed image (20) converted by Step 2-2 is performed. For example, when the region averaging image (19) or the horizontal blur processing image (20) is in the 24-bit RGB format, the density value of each pixel of the entire image of _{the basic multi-valued color information (R 0} , G ₀ , B _0). By converting (gray level from 0 to 255) by the formula 3, the hue-inverted first and _second multi-valued color information (R 2, G ₂ , B ₂ ) is obtained. That is, when the basic multi-valued color information (R ₀ , G ₀ , B ₀ ) of the basic color image (15) is, for example, the density value of the pixel shown in FIG. 15 (a), the hue is inverted first. The multi-valued color information (R ₂ , G ₂ , B ₂ ) of -2 is converted into, for example, the density value of the pixel shown in FIG. 15 (c).

(Formula 3)

Next, the gradation-inverted 1-1 multi-valued color information (R ₁ , G ₁ , B ₁ ) and the hue-inverted 1-2 multi-valued color information (R ₂ , G ₂ , B) with _2), the first multi-level color information averaged (50% synthesis) by the density value of the whole of each pixel image (gray level of 0 to 255) is synthesized by converting a formula 4 ( R ₄ , G ₄ , B ₄ ). That is, the averaged first multi-valued color information (R ₄ , G ₄ , B ₄ ) is converted into, for example, the density value of the pixel shown in FIG. 15 (e). The image provided with the first multi-valued color information (R ₄ , G ₄ , B ₄ ) is the first multi-valued color image (26).

(Formula 4)

Next, for the positive image line (14), the brightness of the multi-valued color image of either the region averaging image (19) converted by Step 2 or the horizontal blurring processed image (20) converted by Step 2-2 is inverted. Is done. For example, when the region averaging image (19) or the horizontal blurring image (20) is in the 24-bit RGB format, the density value of each pixel of the entire image of _{the basic multi-valued color information (R 0} , G ₀ , B _0). By converting (gray level from 0 to 255) by the mathematical formula 5, the lightness is inverted to obtain the second multi-valued color information (R ₃ , G ₃ , B ₃ ). That is, when the basic multi-valued color information (R ₀ , G ₀ , B ₀ ) of the basic color image (15) is, for example, the density value of the pixel shown in FIG. 15 (a), the brightness is inverted second. The multi-valued color information (R ₃ , G ₃ , B ₃ ) of -1 is converted into, for example, the density value of the pixel shown in FIG. 15 (d).

(Formula 5)

_{Next, the basic multi-valued color information (R 0} , G ₀ , B ₀ ) consisting of the region averaging image (19) converted by Step 2 or the horizontal blurring processed image (20) converted by Step 2-2 and the brightness inversion are performed. Using the obtained multi-valued color information (R ₃ , G ₃ , B ₃ ) of the 2-1st, the density value (gray level of 0 to 255) of each pixel of the entire image is converted by the formula 6 and synthesized. As a result, the second multi-valued color information (R ₅ , G ₅ , B ₅ ) is averaged (50% synthesized). The averaged second multi-valued color information (R ₅ , G ₅ , B ₅ ) is converted into, for example, the density value of the pixel shown in FIG. 15 (f). The image provided with the second multi-valued color information (R ₅ , G ₅ , B ₅ ) becomes the second multi-valued color image (27).

(Formula 6)

Next, in the mask processing step of Step 8, the first multi-value color information (R ₄ , G ₄ , B ₄ ) averaged in Step 7 is converted into the first multi-value color as shown in FIG. 16 (a). The image (26) is expanded, and the upper slit mask image (Q1) obtained in Step 6-1 is applied at that time. As a result, as shown in FIG. 16 (b), which is a partially enlarged view of FIG. 16 (a), a negative image line (13) having a fourth color complementary to the third color is formed. To.

On the other hand, the second multi-valued color information (R ₅ , G ₅ , B ₅ ) averaged by Step 7 is expanded into the second multi-valued color image (27) as shown in FIG. 17 (a). At that time, the lower slit mask image (Q2) obtained in Step 6-2 is applied. As a result, as shown in FIG. 17 (b), which is a partially enlarged view of FIG. 17 (a), a positive image line (14) having a third color complementary to the fourth color is formed. To.

Further, in the step 9 colored latent image pattern generation step, the first multi-valued color image (26) generated in Step 8 and the second multi-valued color image (27) are combined and colored as shown in FIG. The base image of the latent image pattern (10) is completed. FIG. 18 is a plan view of the colored latent image pattern (10) and a partially enlarged view thereof. As shown in FIG. 18A, the colored latent image pattern (10) can be visually recognized as a uniform universal line pattern of the same color.

The latent image line (11) includes a positive line (14) having a third color and a third color, as shown in FIG. 18 (b), which is a partially enlarged view of FIG. 18 (a). Includes a negative image line (13) having a fourth color of complementary color. The negative image line (13) and the positive image line (14) are arranged in a pair, and the latent image is matched with the color balance in the basic color image (15) which is the base of the latent image unit (7). The negative image line (13) and the positive image line (14) are arranged at the place where the full color expression is desired in the part (7), and the place where the full color expression is desired is the color display area (C) shown in FIG. 18 (b). ).

In addition, one latent image line (11) is displayed in monotone where the above-mentioned parts that are not expressed in full color are expressed in achromatic colors such as the background part (18), human hair, and eyebrows. As the region (M), it is formed by a second color of a mixed color of the negative image line (13) and the positive image line (14). Since the latent image line (11) is an element having a fine width (specifically described later), the color display area (C) is the negative picture line (13) of the fourth color and the third. Although it is composed of positive strokes (14) of the color of, it is visually recognized as a mixture of the two colors with the naked eye, so that it is visually recognized as the same color as the color of the monotone display area (M), and as a result, it is latent. The image line (11) is visually recognized as if one line is formed by one color.

In the monotone display area (M), it seems that the latent image line (11) is formed by one line, but in the color display area (C), the negative image is formed by the fourth color. The positive line (14) in which the line (13) is formed by the second color of achromatic color in the monotone display area (M) and is formed by the third color in the color display area (C). However, in the monotone display area (M), it is formed by a second achromatic color. Actually, in the monotone display area (M), both the negative image line (13) and the positive image line (14) are formed by the second color, so that they cannot be distinguished from each other and are formed by one. It looks like it is. Therefore, the latent image line (11) is formed by a negative line (13) and a positive line (14).

From the above, the fact that the colored latent image pattern (10) is visually recognized with a uniform second color means that, as described above, the mixed color of the third color and the fourth color becomes the second color. The latent image line (11) constituting the monotone display area (M) is identified as the second color.

Since the boundary between the color display area (C) and the monotone display area (M) of the negative image line (13) and the positive image line (14) cannot be discriminated by the naked eye, the boundary line of the latent image portion (7). However, in order to make it more comfortable, as shown in FIG. 18 (b), both sides of the latent image portion (7) sandwiching the boundary are the second color, the so-called third color. It is preferable that the gradation is a mixture of the above color and the fourth color.

The details of the creation method will be described later, but since the positive image line (14) has a color corresponding to the full-color continuous gradation of the base color image (15), it is within one positive image line (14). However, the colors may change, but the colors are different even in the plurality of positive lines (14), and the colors constituting the positive lines (14) are collectively referred to as the third color. In the present invention, the "color corresponding to the full-color continuous gradation of the basic color image (15)" constitutes the color of each pixel of the basic color image (15) and the latent image pattern (10). It means having the same color at the same position of the latent image line (11). Similarly, since the negative image line (13) has a complementary color relationship with the positive image line (14), the plurality of positive image lines (14) have a full-color continuous gradation of the base color image (15). In addition to having different colors correspondingly, the negative drawing line (13) also has different colors, but is collectively referred to as the fourth color.

The negative image line (13) is shown in the figure, whereas the positive image line (14) is an element for forming the latent image portion (7) when the observer (16) observes the base material (2). It is an element for making the latent image portion (7) invisible when observed under the observation condition of 3 (a). Therefore, the fourth color of the negative line (13) needs to have a complementary color relationship with the third color of the positive line (14). Specifically, the latent image line (11) in the monotone display area (M) composed of one color constitutes an area composed of achromatic colors in the latent image unit (7). be. This achromatic color is a non-saturated color such as gray and black.

Since the latent image portion (7) of the present invention mainly targets the face image (3) of a person, taking the face of a person as an example, the area where the hair and eyebrows are composed of this achromatic color. Become. The negative image line (13) and the positive image line (14) have a complementary color relationship, but when the complementary colors are mixed, they become gray achromatic colors. Therefore, in order to make the colored region in the human face image (3) invisible, by matching the color with the achromatic color of the hair and eyebrows, the latent image portion (7) becomes achromatic and can be visually identified. It's gone. Further, by forming the background portion (18) around the latent image portion (7) with a second achromatic color as the monotone display area (M), the latent image portion (7) and the background portion (18) are formed. Can no longer be identified, and the latent image portion (7) can be completely invisible.

The distinction between the latent image portion (7) and the background portion (18) is performed by the relief-shaped portion formed in a part of the latent image image line (11) described above. Depending on the relief-shaped portion, the camouflage image line (9) has a phase difference in a part of the image line. The difference in brightness is expressed by this difference in phase. Therefore, the latent image portion (7) and the background portion (18) are distinguished by this difference in brightness.

The pitch (P) between the latent image lines (11) is equal to the pitch (P) between the camouflage lines (9), and is preferably formed in the range of 80 μm to 1,000 μm.

Further, the image width (W2) in the first direction (S1) of the latent image image line (11) is wider than at least 10 μm, and the upper limit is the image line in the range of 9/10 with respect to the pitch (P). It is formed by the width (W2). This is because if the width (W2) of the latent image line (11) is wider than 9/10 with respect to the pitch (P), the latent image line (11) in the relief-shaped portion of the camouflage line (9). ) Overlap, so that contrast cannot be obtained and the latent image portion (7) cannot be visually recognized. Further, when the width (W2) of the latent image line (11) is narrower than 10 μm, the area where the camouflage line (9) and the latent image line (11) overlap is small, so that the visibility of the latent image portion (7) becomes poor. This is because it decreases.

However, considering the color balance of the latent image portion (7), it is preferable that the image width is approximately ½ of the pitch (P), and the image width (W2) of the latent image image line (11) and the image width (W2). The widths (W3) of the non-images between the colored images (W2) are almost equal.

Further, the ratio of the respective widths (W2-1 and W2-2) of the negative image line (13) and the positive image line (14) in the image width (W2) of the latent image image line (11) is approximately 1. It becomes equal by / 2. As described above, the negative image line (13) and the positive image line (14) have a complementary color relationship, and the mixed color of the two elements becomes an achromatic color. Therefore, the width of each element (W2-1, W2) is assumed. If -2) is different, the mixed color does not become an achromatic color, and the latent image portion (7) is the color of the base color image (15) or the base color image (15) even under the observation condition of FIG. 3 (a). It can be seen a little with the complementary color of, and the latent image effect is lost in the first place.

The method for forming the latent image line (11) is not particularly limited as long as it can be formed on the substrate (2), such as a known inkjet printer method, offset printing method, flexographic printing method, and the like. However, in order to express the clear full-color continuous gradation of the latent image portion (7), high printing accuracy with the camouflage image line (9) is required. Digital printing machine) is preferable.

By forming the special latent image (6) of the present invention by an inkjet printer method, the data of each pattern (8, 10) described later can be different for each formed body (1) and given as variable information. can. In particular, by using the base color image (15) as a person (face), it can be fully utilized as a passport booklet as shown in FIG.

For the second color, the third color, and the fourth color of the latent image line (11), the process colors cyan, magenta, and yellow may be used, but each desired color may be used. , May be formed by a special color in which a plurality of kinds of pigments and the like are mixed. When process colors are used, the color balance of the three colors cyan, magenta, and yellow affects the quality. On the other hand, when a spot color is used, since it is composed of two colors, there is an advantage that the instability factor of the color balance of the process color is alleviated.

Next, the meaning of the "color expression" simulated in the present invention will be described. As described above, as for the color for forming the latent image line (11), if three colors of process colors are used, the same color as the base color image (15) can be expressed in full color. However, since the base color image (15) targeted by the special latent image (6) of the present invention is a person (face), the hair and eyebrows are expressed in achromatic color, and the remaining colors are almost skin color. Therefore, a special latent image (6) can be formed by using two special colors. Therefore, the creator may appropriately decide whether to form the special latent image (6) using the process color or the spot color, but when the spot color is used, the color is not full color. Therefore, the special latent image (6) of the present invention means that it is a "pseudo full color" because not all of them are full color because the expression method is slightly different depending on the design of the creator. The latent image pattern (10) using this spot color will be described later.

Next, the arrangement relationship between the latent image line (11) and the camouflage line (9) will be described. FIG. 19 shows the positional relationship between the camouflage line (9) and the latent image line (11). As shown in FIG. 19B, when the image is in the monotone display area (M) and is in the “white background portion” of the base color image (15), the latent image line is observed when observed by the observer (16). The center line (T2) of (11) coincides with the center line (T1) of the camouflage image line (9). As a result, it is recognized as a white color under the observation conditions shown in FIG.

On the other hand, as shown in FIG. 19 (b), when it is in the color display area (C) and is in the "skin-colored face" of the base color image (15), it is a latent image when observed from the observer (16). The center line (T2) of the drawing line (11) is not equal to the center line (T1) of the camouflage drawing line (9). As a result, it is recognized as a skin color under the observation conditions shown in FIG.

That is, the camouflage image line (9) has a linear shape, but the latent image image line (11) expresses continuous gradation, so that the curve corresponding to the gradation of the base color image (15) ( It has a relief image). The maximum phase shift in the curve of the latent image line (11) is approximately ½ of the line width (W2) of the camouflage line (9). A method for forming the shape of the latent image line (11) corresponding to the continuous gradation of the basic color image (15) will be described later. The positional relationship between the positive image line (14) and the camouflage image line (9) expresses fine continuous gradation.

Regarding the phase shift distance, considering the change in light and shade in the second achromatic color and the occlusion of the negative image line (13), it is approximately 1 / of the image width (W2) of the latent image image line (11). It is preferable that the distance corresponds to 2. If the phase shift amount is set to a distance narrower than 1/2 or a wide distance, the color balance of the latent image portion (7) is lost and full-color continuous gradation faithful to the basic color image (15) cannot be expressed. It ends up.

(Modified example of the first embodiment)
Next, a modified example of the first embodiment using the spot color without using the process color will be described. When the latent image pattern (10) is formed by using the spot color, it can be formed by two colors, which is one less than the case where three colors of the process color are used. As described above, in the case of the basic color image (15) of the present invention, when a person (face) is targeted, the main component of the skin color is the hemoglobin color of red blood cells, that is, red, so that the red component in the color space An ink produced by (R component) and its neighboring color can be used. The skin color of the positive image line (14) formed by this ink is called a fifth color.

Even when the positive stroke (14) is formed by using the fifth color of the spot color, the negative stroke (13) is the fifth of the positive stroke (14) as in the case of using the full color described above. It has a sixth color that has a complementary color relationship with the color of. The sixth color is not produced by the process color, but is formed by the spot color like the fifth color.

As for the latent image image line (11) by the special color, the composition of the image line width (W), pitch (P), arrangement relationship, etc. is the same as the case of forming using the above-mentioned process color, so the details are omitted. do. The creation method will be described later.

Next, a method of creating data for the formed body (1) in the present embodiment will be described. The present invention is not limited to the embodiments described below, and includes various other embodiments as long as it is within the scope of the technical idea in the claims.

The latent image pattern (10) described in the modified example of the first embodiment is in the 24-bit RGB format, but when used for printing, it is appropriate to use a 32-bit CMYK image composed of the current color mixture. Therefore, the color separation means of the output means (M3) may be used for CMYK printing. What is printed in this way is the latent image line (11) shown in FIG.

(Special latent image pattern generation flow)
The color expression in the present embodiment is expressed by a spot color. The advantage of using spot colors is that the number of print colors can be reduced and the color stability is improved. A flow of generating a featured latent image pattern will be described with reference to FIG. 20.

In the color gamut extraction step of Step 10, in the multi-valued color image of the region averaging image (19) converted in Step 2 or the horizontal blurring processed image (20) converted in Step 2-2, a specific color gamut (skin color) is obtained. Extraction is done. The basic color image (15) is a person (face), and as described above, the main component of the skin color of the person (face) is the hemoglobin color of red cells, that is, red. Therefore, as shown in FIG. When the base color image (15) is in the 24-bit RGB format, the red component (R component) and its neighboring colors in the color space (28) may be extracted. As a result, a third multi-valued monochrome image (29) from which the red component is extracted is obtained.

Next, in the multi-valued monochrome gradation conversion step of Step 11, the third multi-valued monochrome image (29) from which the red component obtained in Step 10 is extracted is a two-system 8-bit grayscale image prepared on the memory. When, the tone curve is applied to each. In the present embodiment, as shown in FIG. 22, the first tone curve (30) is applied to the third multi-valued monochrome image (29) of the first system. The density value 255 is set to the density value 222, the density value 0 is set to the density value 199, and the tone curve has a linear continuity. As a result, the multi-valued monochrome positive image (31) after applying the first tone curve (30) is generated as a positive shape with low contrast at first glance. Further, the second tone curve (32) is applied to the third multi-valued monochrome image (29) of the second system. The density value 255 is set to the density value 232, the density value 0 is set to the density value 255, and the tone curve has a linear continuity. As a result, the multi-valued monochrome negative image (33) after applying the second tone curve (32) is generated as a negative with a seemingly low contrast.

Next, in the binary image generation step for spot color of Step 12, first, in the first multi-value monochrome positive image (31) generated by Step 11, the third pattern file (K1) shown in FIG. 23 (a). Is applied, and further, by applying the lower slit mask image (Q2) shown in FIG. 14, the binary image (34) of the second 2-1 shown in FIG. 24 is generated. At the same time, in the second multi-valued monochrome negative image (33) generated by Step 11, the third pattern file (K1) shown in FIG. 23 (a) is applied, and the upper slit shown in FIG. 13 is further applied. By applying the mask image (Q1), the 2-2 binary image (35) shown in FIG. 24 is generated. By synthesizing the 2-1 binary image (34) and the 2-2 binary image (35) in the first synthesizing step of the binary image of Step 13, the second image shown in FIG. 24 is shown. (36), which is an image for skin color in color expression.

Further, in the first multi-valued monochrome positive image (31) generated in Step 11, the fourth pattern file (K2) shown in FIG. 23 (b) is applied, and the lower slit shown in FIG. 14 is further applied. By applying the mask image (Q2), the binary image (37) of the third 3-1 shown in FIG. 25 is generated. Further, in the second multi-valued monochrome negative image (33) generated in Step 11, the fourth pattern file (K2) shown in FIG. 23 (b) is applied, and the upper slit mask shown in FIG. 13 is further applied. By applying the image (Q1), the third binary image (38) shown in FIG. 25 is generated. By synthesizing the 3-1 binary image (37) and the 3-2 binary image (38) in the second synthesis step of the binary image of Step 14, the third image shown in FIG. 25 is shown. (39), which is a complementary color image in color expression.

Further, in the special color latent image pattern generation step of Step 15, the second binary image (36) generated in the first synthesis step of the binary image of Step 13, the so-called skin color image, and the binary image of Step 14 are the first. The third binary image (39) generated in the synthesizing step 2, the so-called complementary color image, is combined with each other to generate the latent image pattern (10') shown in FIG. 26. In this latent image pattern (10'), as shown in the partially enlarged view of FIG. 26, the element arranged on the upper side on the drawing becomes a negative drawing line (13') and is arranged on the lower side on the drawing. The element is a positive image line (14').

Of course, the latent image pattern (10') shown in FIG. 26 may be printed by preparing two spot colors, but the second binary image (36) shown in FIG. 24 and the second binary image (36) shown in FIG. 25 are shown. The binary image (39) of 3 may be printed by converting each image into a multi-valued color image obtained by converting a spot color into a color image and combining them, and converting them into CMYK by the color separation means of the output means (M3).

The flow chart of FIG. 20 shows the process up to the creation of image data for forming the latent image pattern (10'), but the camouflage pattern (8) described above is on the above-mentioned base material (2). ), And the special color latent image pattern forming step formed by using the image data of the latent image pattern (10'), the data for the formed body (1) of the present invention is obtained. Can be created.

(Former body)
The camouflage pattern (8) and the latent image pattern (10) shown in FIG. 2 are colored and printed in various printing methods. However, in order to form the form of the formed body (1), it is printed as a latent image structure as shown in FIG. 27. In this latent image structure, first, a latent image pattern (10, 10') is printed on a colorless transparent base material (51). FIG. 27 (a) is an example in which the colored latent image pattern (10) is printed in at least three colors of cyan, magenta, and yellow for convenience of printing, and FIG. 27 (b) is a spot color latent image. This is an example in which the pattern (10') is printed in two special colors, the so-called skin color and the complementary color.

Next, the concealing layer (12) having the same image size is printed in white. This is the concealment layer (12) described in FIG. Further, for the surface, the camouflage pattern (8) is printed in an opaque color (black) having low light transmission. As a result, when observed under normal transmitted light with the colorless transparent substrate (51) side as the back surface and the camouflage pattern (8) side as the front surface, front printing consisting of the colored camouflage pattern (8) shown in FIG. 28 (a). The back print pattern (54) composed of the colored latent image pattern (10) or the special color latent image pattern (10') shown in the pattern (53) and FIG. 28 (b) is visually recognized as a flat printed surface, but on the back surface side. When the light is transmitted from the surface (through) and observed, a face image having a color similar to that of the base color image (15) appears as shown in the front and back composite pattern (55) shown in FIG. 28 (c). Therefore, the latent image structure of the present invention is a structure in which the latent image pattern (10), the concealing layer (12), and the camouflage pattern (8) are formed in this order on the base material (2).

(Second embodiment)
Next, the formed body (1) in the second embodiment will be described. Unlike the first embodiment, the forming body (1) in the second embodiment has a camouflage pattern (8) as a white (colorless) camouflage drawing line (9), and further, a camouflage drawing line (9). ) Is formed by a relief-shaped image line expressing the difference in brightness of the latent image portion (7) to form the formed body (1).

FIG. 29 is a developed view showing the configuration of the special latent image (6). The special latent image (6) in the second embodiment is composed of a camouflage image line (9) made of opaque white and a latent image line (11) made of colored. The total area ratio of the camouflage image line (9) and the total area area ratio of the latent image image line (11) are 1: 1 as in the first embodiment, and each has an image area ratio of 50%. It has become. Therefore, the camouflage line (9) is visually recognized as white (colorless) as the first color, and the latent image line (11) is visually recognized as halftone gray.

Further, the base material (2) is not particularly limited as long as each of the camouflage pattern (8) and the latent image pattern (10) can be observed with transmitted light, as in the first embodiment. It is preferably a paper base material having high light transparency or a colorless and transparent plastic material.

The effect of the formed body (1) in the second embodiment is shown in FIG. First, a latent image line (11) is provided on the base material (2), a concealing layer (12) is provided so as to cover the latent image line (11), and a position equal to the latent image line (11) is further provided on the concealing layer (12). It is equipped with a camouflage drawing line (9). Then, as shown in FIG. 30A, when the observer (16) observes under reflected light from directly above the base material (2), the special latent image (6) is obtained. , The camouflage image line (9) can be visually recognized as white (colorless), and as shown in FIG. 30 (b), the light emitted from the light source (56) from the opposite side of the base material (2) to the observer (16). When observed through (through), the latent image portion (7) having continuous gradation can be visually recognized.

(Making device for forming body)
As shown in the block diagram of FIG. 31, the apparatus for producing the formed body (1) in the second embodiment includes an input means (M1'), an editing means (M2'), an output means (M3'), and a display means. It has at least (M4'), a communication interface (M5') and a database (M6').

The input means (M1') is composed of a color image input means (M1a') and an information input means (M1b'), and the input of the basic color image (15) in the color image input means (M1a') is a digital camera. , Scanner, etc. are not particularly limited. It is also possible to obtain images, texts and the like from a database server registered in advance by the database (M6') or the communication interface (M5').

On the other hand, the information input means (M1b') is input from a keyboard or the like, numerical information registered in the same personal computer as the database (M6'), and an external database input in advance by the communication interface (M5'). Numerical information can be obtained from the server. This numerical information is an output resolution or the like related to a plurality of images described later.

The editing means (M2') is composed of a preprocessed image generation means (M2a'), a colored latent image pattern generation means (M2b'), and a white camouflage pattern generation means (M2c'). The preprocessed image generation means (M2a') generates a preprocessed image from the color image, numerical information, pattern file, etc. obtained from the communication interface (M5') or the database (M6'), and generates a colored latent image pattern. The means (M2b') generate a latent image pattern (10), and the white camouflage pattern generation means (M2c') generate a camouflage pattern (8).

The output means (M3') is a printing device or the like capable of printing an image from a computer such as an inkjet printer, and is not particularly limited. The display means (M4') is not particularly limited to a personal computer monitor, a dedicated monitor, or the like. The communication interface (M5') is not particularly limited to USB, RS-232C, IEEE1394, and the like.

Next, a method of creating data for the formed body (1) will be described in detail with reference to FIG. 32. The data creation method consists of three major processing flows surrounded by the alternate long and short dash line. The pre-processing flow is executed by the pre-processed image generation means (M2a'), the colored latent image pattern generation flow is executed by the colored latent image pattern generation means (M2b'), and the white camouflage pattern generation flow is the white camouflage pattern. It is executed in the generation means (M2c'). Since the preprocessing flow is the same as the processing described in the method for creating the data for the forming body (1) in the first embodiment, the description is omitted and the region averaging image converted by Step 2 ( The steps after the colored latent image pattern generation flow and the white camouflage pattern generation flow using the horizontal blurring processed image (20) converted in 19) or Step 2-2 will be described. Further, since a part of the colored latent image pattern generation flow and the white camouflage pattern generation flow also includes the same processing as that of the first embodiment, the drawings used in the first embodiment will be described.

(White camouflage pattern generation flow)
First, the white camouflage pattern generation flow will be described, but the description of the multi-valued monochrome image generation step of Step 21 is omitted because it is the same as the multi-valued monochrome image generation step of Step 3 described in the first embodiment. The steps after the first binary image generation step of Step 22 will be described.

In the first binary image generation step of Step 22, the first pattern file (A) as shown in FIG. 10 is applied to the first multi-valued monochrome image (21) generated by Step 21. The first pattern file (A) is a multi-valued image also called a critical value array image, and the number of vertical pixels is the number of vertical pixels (h) used when averaging the pixel densities in the vicinity in Step 22. In the second embodiment, it is 48 Pixels. By applying the first pattern file (A) to the entire first multi-valued black-and-white image (21), the positive 1-1 binary image (23) shown in FIG. 10 is generated. ..

At the same time, the second pattern file (B) as shown in FIG. 11 is applied to the negative-shaped second multi-valued monochrome image (22) generated by Step 21. The second pattern file (B) is a multi-valued image, which is also called a critical value array image like the first pattern file (A), and the number of vertical pixels is averaged at nearby pixel densities in Step 22. It is equal to the number of vertical pixels (h) used in the above, and in the second embodiment, it is set to 48Pixel as in the first embodiment. By applying the second pattern file (B) to the entire negative-shaped second multi-valued monochrome image (22), the negative-shaped 1-2 binary image (24) shown in FIG. 11 is obtained. Generated.

Next, in the white camouflage pattern generation step of Step 23, the 1-1 binary image (23) and the 1-2 binary image (24) generated in Step 22 are combined, and the first binary image shown in FIG. 12 is combined. The basic mask image (25) of the white camouflage pattern, which is the binary image of the above, is completed. A printed version of the basic mask image (25) of the white camouflage pattern is the camouflage pattern (8) shown in FIG. 29. At this time, regarding the composition of the 1-1 binary image (23) and the 1-2 binary image (24), the entire areas showing the respective images are arranged in the same area. , The positive image (40) that constitutes the 1-1 binary image (23) in a positive shape, and the negative image that constitutes the 1-2 binary image (24) in a negative shape. It does not overlap with (41) and is arranged adjacent to each other as shown in the first binary image of FIG.

Next, the colored latent image pattern generation flow surrounded by the dotted line in FIG. 32 will be described. Regarding the multi-valued color information conversion step of Step 24, the multi-valued color information conversion of Step 7 described in the first embodiment will be described. Since it is the same as the process, the description thereof will be omitted, and the process after the mask processing of Step 25 will be described.

In the mask processing step of Step 25, the first multi-valued color information (R ₄ , G ₄ , B ₄ ) averaged in Step 24 is converted into the first multi-valued color image (R 4, G 4, B 4) as shown in FIG. 33 (a). Expand to 26), and apply a linear upper slit mask (Q1) at that time. As a result, as shown in FIG. 33 (b), which is a partially enlarged view of FIG. 33 (a), a negative image line (13) having a fourth color related to complementary colors is formed.

On the other hand, the second multi-valued color information (R ₅ , G ₅ , B ₅ ) averaged by Step 24 is expanded into the second multi-valued color image (27) as shown in FIG. 34 (a). At that time, a linear lower slit mask (Q2) is applied. As a result, as shown in FIG. 34 (b), which is a partially enlarged view of FIG. 34 (a), a positive image line (14) having a third color related to complementary colors is formed.

Further, in the colored latent image pattern generation step of Step 26, the first multi-valued color image (26) generated by Step 25 and the second multi-valued color image (27) are combined, and the latent image shown in FIG. 35 is combined. The base image of the image pattern (10) is completed. FIG. 35 is a plan view of the latent image pattern (10) and a partially enlarged view thereof. As shown in FIG. 35 (a), the latent image pattern (10) can be visually recognized as a uniform perimeter pattern of the same color.

Next, the arrangement relationship between the latent image line (11) and the camouflage line (9) will be described. FIG. 36 shows the positional relationship between the camouflage drawing line (9) and the arrangement of the latent image drawing line (11) formed on the camouflage drawing line (9). As shown in FIG. 36 (b), when the image is in the monotone display area (M) and is in the “white background portion” of the base color image (15), the latent image image line when observed from the observer (16). The center line (T2) of (11) coincides with the center line (T1) of the camouflage image line (9). As a result, under the observation conditions shown in FIG. 30 (a), the color is recognized as a white color.

On the other hand, as shown in FIG. 36 (b), when it is in the color display area (C) and is in the "skin-colored face portion" of the base color image (15), it is a latent image when observed from the observer (16). The center line (T2) of the drawing line (11) is not equal to the center line (T1) of the camouflage drawing line (9). As a result, under the observation conditions shown in FIG. 30 (b), the configuration can be recognized as a skin color.

(Modified example of the second embodiment)
Next, as a modification of the second embodiment, a negative image line (13) and a positive image line (14) are formed as a latent image pattern (10) using a spot color without using a process color. Will be explained. As for the spot color ink, the positive image line (14) has a complementary color relationship with the fifth color, and the negative image line (13) has a complementary color relationship with the fifth color, as in the modification of the first embodiment. Formed in 6 colors.

The method of creating the formed body (1) in the modified example of the second embodiment will be described. The latent image pattern (10) described in the present embodiment is in the 24-bit RGB format, and when used for printing, it is appropriate to use a 32-bit CMYK image composed of the current color mixture. Therefore, it may be converted into CMYK and printed by the color separation means of the output means (M3'). What is printed in this way is the latent image line (11) shown in FIG. 29.

(Special latent image pattern generation flow)
The special color latent image pattern generation flow of FIG. 37 will be described, but the color gamut extraction step of Step 27 and the multi-valued black-and-white gradation conversion step of Step 28 have been described in a modified example of the first embodiment. Since it is the same as the color gamut extraction step of Step 10 and the multi-valued monochrome gradation conversion step of Step 11, the description will be omitted, and the subsequent steps of the binary image generation step for special color of Step 29 will be described.

In the special color binary image generation step of Step 29, the fifth pattern file (K3) for the lower part shown in FIG. 38 (a) is applied to the first multi-value monochrome positive image (31) generated in Step 28. Then, the binary image (34) of the 2-1 shown in FIG. 39 is generated. At the same time, in the second multi-valued monochrome negative image (33) generated by Step 28, the sixth pattern file (K4) for the upper part shown in FIG. 38 (b) is applied, and the second pattern file (K4) shown in FIG. 39 is applied. A binary image (35) of -2 is generated. By synthesizing the 2-1 binary image (34) and the 2-2 binary image (35) in the first synthesizing step of the binary image of Step 30, the second image shown in FIG. 39 is shown. (36), which is an image for skin color in color expression.

Further, in the first system of the multi-valued monochrome positive image (31) generated by Step 28, the seventh pattern file (K5) for the lower part shown in FIG. 38 (c) is applied, and the third pattern file (K5) shown in FIG. 40 is applied. A binary image (37) of 1 is generated. Further, in the second multi-valued monochrome negative image (33) generated by Step 28, the eighth pattern file (K6) for the upper part shown in FIG. 38 (d) is applied, and the third pattern shown in FIG. 40 is applied. A binary image (38) of 2 is generated. By synthesizing the 3-1 binary image (37) and the 3-2 binary image (38) in the second synthesis step of the binary image of Step 31, the third image shown in FIG. 40 is shown. (39), which is a complementary color image in color expression.

Further, in the special color latent image pattern generation step of Step 32, the second binary image (36) generated in the first synthesis step of the binary image of Step 30, the so-called skin color image, and the binary image of Step 31 are the first. The third binary image (39) generated in the synthesizing step 2, the so-called complementary color image, is combined with each other to generate a latent image pattern (10'). In this latent image pattern (10'), as shown in the partially enlarged view of FIG. 41, the element arranged on the upper side on the drawing becomes a negative drawing line (13') and is arranged on the lower side on the drawing. The element is a positive image line (14').

Of course, the latent image pattern (10') shown in FIG. 41 may be printed by preparing two spot colors, but the second binary image (36) shown in FIG. 39 and the second binary image (36) shown in FIG. 40 are shown. The binary image (39) of 3 may be printed by converting each image into a multi-valued color image obtained by converting a spot color into a color image and synthesizing it, and then converting it into CMYK by the color separation means of the output means (M3).

The flow chart of FIG. 37 shows the process up to the creation of the image data for forming the latent image pattern (10'), but the camouflage pattern (8) described above is on the above-mentioned base material (2). The formed body (1) of the present invention is produced by the white camouflage pattern forming step formed by using the image data of) and the featured latent image pattern forming step formed by using the image data of the latent image pattern (10'). can do.

(Special latent image pattern forming body)
The white camouflage pattern (8) and the latent image pattern (10, 10') shown in FIG. 29 are colored and printed in various printing methods. However, in order to form the formed body (1), it is printed as a latent image structure as shown in FIG. 42. In this latent image structure, first, a latent image pattern (10, 10') is printed on a colorless transparent base material (51). FIG. 42A is an example in which the latent image pattern (10) is printed in at least three colors of cyan, magenta, and yellow for convenience of printing, and FIG. 42B is a spot color latent image pattern (10). ') Is an example of printing in two special colors, so-called skin color and complementary color.

Next, the concealing layer (12) having the same image size is printed in white. This is the concealing layer (12) described with reference to FIG. Further, for the surface, a white camouflage pattern (8) is printed in opaque white with low light transmission. As a result, when observed under normal reflected light with the colorless transparent substrate (51) side as the back surface and the white camouflage pattern (8) side as the front surface, the table consisting of the white camouflage pattern (8) shown in FIG. 43 (a). The back printed pattern (54) composed of the printed pattern (53), the colored latent image pattern (10) or the special colored latent image pattern (10') shown in FIG. 43 (b) is visually recognized as a flat printed surface, but on the back surface. When the light is transmitted through (through) and observed, a face image having a color similar to that of the base color image (15) appears as shown in the front and back composite pattern (55) shown in FIG. 43 (c). Therefore, the latent image structure of the present invention is a structure in which the latent image pattern (10, 10'), the concealing layer (12), and the white camouflage pattern (8) are formed in this order on the base material (2). be.

1 Forming body 2 Base material 3 Face image 4 Personal information 5 Booklet number 6 Special latent image 7 Submarine image part 8 Camouflage pattern 9 Camouflage image line 10, 10'Latent image pattern 11 Submarine image line 12 Concealing layer 13, 13', 41 Negative lines 14, 14', 40 Positive lines 15 Basic color image 16 Observer 18 Background 19 Area averaging image 20 Horizontal blur processing image 21 First multi-value monochrome image 22 Second multi-value monochrome image 23 1-1 binary image 24 1-2 binary image 25 Basic mask image 26 1st multivalue color image 27 2nd multivalue color image 28 Color space 29 3rd multivalue monochrome image 30 1 tone curve 31 multi-value monochrome positive image 32 second tone curve 33 multi-value monochrome negative image 34 2-1 binary image 35 2-2 binary image 36 second binary image 37 third Binary image of -1 38 Binary image of 3-2 3rd binary image 50 Averaged 51 Colorless transparent base material 52 Solid image 53 Front printing pattern 54 Back printing pattern 55 Front and back composite pattern 56 Light source A 1st Pattern file B Second pattern file C Color display area h Number of vertical pixels K1, K2, K3, K4 Pattern file M Monotone display area M1, M1'Input means M1a, M1a' Color image input means M1b, M1b'Information input Means M2, M2'Editing means M2a, M2a' Pre-processed image generating means M2b, M2b' Colored latent image pattern generating means M2c Mask image generating means M2c' White camouflage pattern generating means M3, M3' Output means M4, M4' Display means M5, M5'Communication interface M6, M6' Database P Pitch Q1 Upper slit mask image Q2 Lower slit mask image S1 Direction T1 Center line

Claims (10)

It has a latent image structure in which a latent image pattern, a concealing layer, and a camouflage pattern are laminated in this order on at least a part of a light-transmitting substrate.
In the latent image pattern, latent image lines regularly arranged in a universal line with a predetermined pitch and image width are formed.
The concealing layer has light transmission, has a color different from that of the latent image pattern and the camouflage pattern, and is on the other surface side when observed from one surface side of the substrate under reflected light. A concealing element that conceals the formed latent image pattern or the camouflage pattern is formed.
In the camouflage pattern, camouflage lines arranged in a universal line with the same pitch and line width as the latent image lines are formed in the first color.
The latent image line is composed of a positive image line that forms a positive image having the color of the base color image of the latent image pattern and a negative image line that forms a negative image in which the positive image is gradation-inverted.
The positive stroke is
i) It has an achromatic second color consisting of the substrate and a process color different from the first color, and a colored third color corresponding to the color of the base color image, or ii) the base. It has a fifth color of special color corresponding to the color of the material and the base color image different from the first color.
In the case of i), the negative image has a fourth color consisting of a complementary process color and the second color, or in the case of ii), the fifth color. The color of has a sixth color consisting of complementary colors,
The positive stroke and the negative stroke are formed adjacent to each other with the same stroke width.
Either one of the latent image line and the camouflage line is formed in a relief shape corresponding to the continuous gradation of the basic color image.
The negative image line and the camouflage image line constituting the latent image image line are formed so as to overlap at least a part thereof.
When the latent image structure is observed from one surface side of the substrate under reflected light, the latent image pattern is observed in the second color having a uniform density, or the camouflage pattern is one. When observed in the first color with a similar density and observed under reflected light from the other surface side of the substrate, is the latent image pattern observed in the second color with a uniform density? Or, when the camouflage pattern is observed in the first color having a uniform density and the latent image structure is observed under transmitted light, the negative image line is concealed by the camouflage image line, so that the negative image line is concealed. A special latent image pattern forming body characterized in that a positive image is observed as a latent image pattern. The special latent image pattern forming body according to claim 1, wherein the latent image pattern and the camouflage pattern are formed with an area ratio of 50%. A method for creating data for a special latent image pattern forming body in which the special latent image pattern forming body according to claim 1 or 2 is the case of i) and a relief-shaped image line is formed by the latent image drawing line. And
A basic color image setting process in which the basic color image is input from the outside or imported from a database registered in advance to set the basic color image.
A region averaging step of dividing the basic color image into a plurality of regions, averaging the densities for each region, and generating a region averaging image.
Multi-valued monochrome image generation for producing a first multi-valued monochrome image obtained by converting the area averaging image into a multi-valued monochrome image and a second multi-valued monochrome image obtained by gradation-inverting the first multi-valued monochrome image. Process and
A positive 1-1 binary image in which the first pattern file is applied to the first multi-valued monochrome image, and a negative-shaped image in which the second pattern file is applied to the second multi-valued monochrome image. The first binary image generation step of producing the first and second binary images, and
A basic mask image generation step of synthesizing the 1-1 binary image and the 1-2 binary image so as to be adjacent to each other.
From the basic mask image obtained by the basic mask image generation step, the upper and lower mask image generation step of generating an upper slit mask for the lower slit mask and the negative image line for the positive image line,
For the negative image line, the primary multi-valued color information indicating the density value of each pixel of the image after the region averaging step is gradation-inverted, and the hue is inverted with the 1-1 multi-valued color information. By creating 1-2 multi-valued color information, averaging it to a density value of 50%, and synthesizing it, a first multi-valued color image having the first multi-valued color information is generated, and the positive image is described. For lines, the 2-1 multi-valued color information obtained by reversing the brightness of the basic multi-valued color information indicating the density value of each pixel of the image after the region averaging step is produced, and the basic multi-valued color is produced. A multi-valued color image generation step that generates a second multi-valued color image as the second multi-valued color information by averaging and synthesizing the information and a density value of 50%.
A mask processing step of applying the upper slit mask to the first multi-valued color image and the lower slit mask to the second multi-valued color image.
A color latent image pattern generation step of synthesizing the negative strokes constituting the first multi-valued color image and the positive strokes constituting the second multi-valued color image so as to be adjacent to each other. How to create data for a special latent image pattern forming body. A method for creating data for a special latent image pattern forming body in which the special latent image pattern forming body according to claim 1 or 2 is the case of the ii) and a relief-shaped image is formed by the latent image drawing line. And
A basic color image setting process in which the basic color image is input from the outside or imported from a database registered in advance to set the basic color image.
A region averaging step of dividing the basic color image into a plurality of regions, averaging the densities for each region, and generating a region averaging image.
A color gamut extraction step for extracting a specific color gamut from the area averaging image, and
A multi-valued monochrome positive image to which the first tone curve is applied to a third multi-valued monochrome image of a specific color extracted in the color gamut extraction step and a multi-valued monochrome negative image to which the second tone curve is applied are obtained. The multi-valued monochrome gradation conversion process to be generated and
The 2-1 binary image to which the third pattern file and the lower slit mask are applied to the multi-valued monochrome positive image, and the second-2 binary image to which the third pattern file and the upper slit mask are applied. 3-1 binary image to which the fourth pattern file and the lower slit mask are applied to the multi-valued monochrome negative image, and the third 3-2 to which the fourth pattern file and the upper slit mask are applied. Binary image generation process for spot color to generate binary image of
The first synthesizing step of the binary image for synthesizing the 2-1 binary image and the 2-2 binary image,
A second synthesizing step of the binary image for synthesizing the 3-1 binary image and the 3-2 binary image,
It is provided with a special color latent image pattern generation step of synthesizing a composite image for the positive image obtained in the first synthesis step and a composite image for the negative image obtained in the second synthesis step. How to create data for a special latent image pattern forming body. The method for creating data for a special latent image pattern forming body according to claim 3 or 4, wherein a saturation adjusting step for increasing the saturation of the basic color image is provided before the region averaging step. .. After the region averaging step, the region averaging image is provided with a horizontal blurring treatment step for performing a blurring treatment to make the boundaries of each region inconspicuous in the horizontal direction of the substrate surface. The method for creating data for a special latent image pattern forming body according to any one of claims 3 to 5, which is characterized. The method for creating data for a special latent image pattern forming body according to claim 1 or 2, wherein the special latent image pattern forming body is the case of i), and a relief-shaped image is formed by the camouflage drawing line. There,
A basic color image setting process in which the basic color image is input from the outside or imported from a database registered in advance to set the basic color image.
A region averaging step of dividing the basic color image into a plurality of regions, averaging the densities for each region, and generating a region averaging image.
Multi-valued monochrome image generation for producing a first multi-valued monochrome image obtained by converting the area averaging image into a multi-valued monochrome image and a second multi-valued monochrome image obtained by gradation-inverting the first multi-valued monochrome image. Process and
A positive 1-1 binary image in which the first pattern file is applied to the first multi-valued monochrome image, and a negative-shaped image in which the second pattern file is applied to the second multi-valued monochrome image. The first binary image generation step of producing the first and second binary images, and
A white camouflage pattern generation step of synthesizing the 1-1 binary image and the 1-2 binary image so as to be adjacent to each other.
For the negative image line, the primary multi-valued color information indicating the density value of each pixel of the image after the region averaging step is gradation-inverted, and the hue is inverted with the 1-1 multi-valued color information. By creating 1-2 multi-valued color information, averaging it to a density value of 50%, and synthesizing it, a first multi-valued color image having the first multi-valued color information is generated, and the positive image is described. For lines, the 2-1 multi-valued color information obtained by reversing the brightness of the basic multi-valued color information indicating the density value of each pixel of the image after the region averaging step is produced, and the basic multi-valued color is produced. A multi-valued color image generation step that generates a second multi-valued color image as the second multi-valued color information by averaging and synthesizing the information and a density value of 50%.
A mask processing step of applying an upper slit mask to the first multi-valued color image and a lower slit mask to the second multi-valued color image.
A color latent image pattern generation step of synthesizing the negative strokes constituting the first multi-valued color image and the positive strokes constituting the second multi-valued color image so as to be adjacent to each other. How to create data for a special latent image pattern forming body. The method for creating data for a special latent image pattern forming body according to claim 1 or 2, wherein the special latent image pattern forming body is the case of ii), and a relief-shaped image is formed by the camouflage drawing line. There,
A basic color image setting process in which the basic color image is input from the outside or imported from a database registered in advance to set the basic color image.
A region averaging step of dividing the basic color image into a plurality of regions, averaging the densities for each region, and generating a region averaging image.
A color gamut extraction step for extracting a specific color gamut from the area averaging image, and
A multi-valued monochrome positive image to which the first tone curve is applied to a third multi-valued monochrome image of a specific color extracted in the color gamut extraction step and a multi-valued monochrome negative image to which the second tone curve is applied are obtained. The multi-valued monochrome gradation conversion process to be generated and
A 2-1 binary image to which the fifth pattern file is applied to the multi-valued monochrome positive image and a 3-1 binary image to which the sixth pattern file is applied are generated, and the multi-valued monochrome negative is generated. A binary image generation step for special colors that generates a 2-2 binary image to which a 7th pattern file is applied to an image and a 3-2 binary image to which an 8th pattern file is applied.
The first synthesizing step of the binary image for synthesizing the 2-1 binary image and the 3-1 binary image,
A second synthesizing step of the binary image for synthesizing the 2-2 binary image and the 3-2 binary image,
It is provided with a special color latent image pattern generation step of synthesizing a composite image for the positive image obtained in the first synthesis step and a composite image for the negative image obtained in the second synthesis step. How to create data for a special latent image pattern forming body. The method for creating data for a special latent image pattern forming body according to claim 7 or 8, wherein a saturation adjusting step for increasing the saturation of the basic color image is provided before the region averaging step. .. After the region averaging step, the region averaging image is provided with a horizontal blurring treatment step for performing a blurring treatment to make the boundaries of each region inconspicuous in the horizontal direction of the substrate surface. The method for creating data for a special latent image pattern forming body according to any one of claims 7 to 9, which is a feature.

Images