JP5167530B2 - Stereoscopic printed matter - Google Patents

Description

  The present invention relates to a dot formation technique for creating a printed image of a stereoscopic print using a lenticular lens, and can be expressed with a high gradation and further with a graininess eliminated or reduced. The present invention relates to a stereoscopic print.

  A stereoscopic print by the lenticular method (long lens method) is composed of a print image 91 and a lenticular lens 92 arranged on the print image 91 as shown in FIG. The lenticular lens 92 is configured by N cylindrical lenses 93 arranged in the vertical direction in parallel in the horizontal direction.

For creating the print image 91, for example, images taken by four cameras C1, C2, C3, and C4 arranged in the horizontal direction as shown in FIG. 2 are used.
FIGS. 3A, 3B, 3C, and 3D show captured images G1, G2 when the two objects A, B are captured by the cameras C1, C2, C3, C4 shown in FIG. , G3, G4 are shown as models.
For example, when creating a stereoscopic print, first, as shown in FIGS. 4A, 4B, 4C, and 4D, photographed images G1, G2, G3, and G4 are each N strips in the vertical direction. image,
s11, s12, ..., s1N
s21, s22, ..., s2N
s31, s32, ..., s3N
s41, s42, ..., s4N
Divide into

Then, N group images g1, g2,..., GN are created with four strip images having the same horizontal position as one image.
g1: s11 + s21 + s31 + s41
g2: s12 + s22 + s32 + s42
g3: s13 + s23 + s33 + s43
・ ・ ・ ・ ・ ・
gN: s1N + s2N + s3N + s4N
(Here, “+” means parallel strip images)
Thereafter, the group images g1, g2,..., GN are connected as shown in FIG. 5A, and the connected images are multiplied by the horizontal direction (1/4) as shown in FIG. The print image 91 is created by reducing the print image 91.

In the present specification, an image on the back surface of the cylindrical lens is referred to as a vertically long image. In the example of FIG. 5B, the vertically long images v1, v2, v3,..., VN are images obtained by reducing the group images g1, g2,. is there.
Image G1, G2, G3, G4 divided into strip images sxy (x = 1, 2,..., 4, y = 1, 2,..., N), and vertically long images by paralleling the strip images sxy The creation of g1 to gN and the creation of portrait images v1, v2, v3,..., vN by reducing the created parallel images g1, g2,..., gN can be performed on a computer (image processing apparatus). it can. Although explanation is omitted, the method described above for taking a photographed image and the method for constructing a group image are merely examples, and various other methods are known.

By the way, in order to create a stereoscopic print having a high stereoscopic effect, it is necessary to increase the number of display images. In the conventional stereoscopic print, the number of display images is limited to about 16 at the maximum due to the limit of the print resolution.
In the area gradation expression, the number of gradations that can be expressed is determined by how many dots are assigned to one pixel. Conventionally, gradation expression has been performed with a dot group in a square having the same number of dots in the horizontal and vertical directions as one pixel. For example, if one pixel is expressed by 4 × 4 dots, 17 gradations can be expressed, and if one pixel is expressed by 16 × 16 dots, 257 gradations can be expressed. In printing stereoscopic prints, if the number of displayed images is increased, the number of strip images arranged in parallel in one vertically long image increases, and therefore the number of gradations that can be expressed decreases.
In the present invention, in order to maximize the number of display images, one pixel is expressed by a dot row arranged in the vertical direction. In a stereoscopic print, a technique for expressing gradation only in the vertical direction is not known, and a gradation expression technique for realizing a stereoscopic print with little graininess is desired.

  An object of the present invention is to express with a high gradation and further reduce graininess when adjusting the vertical filling of dots in order to increase the number of displayed images in a stereoscopic print. An object of the present invention is to provide a stereoscopic print that can be printed.

The gist of the present invention is the following (1) to ( 19 ).
(1) a lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip image constituting the vertically long image is composed of a plurality of pixels in a single vertical row, and each pixel is expressed in gradation by one vertical long dot in which dots are continuous in the vertical direction or a plurality of dots dispersed in a single vertical row ,
Wherein when the number of dots tandem constituting each pixel is M, the color of the colored dot number n _c when the CMY color separation of this pixel, n _m, when the n _y, among the M dots n _c, n _m, coloring n _y dots CMY colors,
Stereoscopic printed matter characterized by that.

( 2 ) a lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip image constituting the vertically long image is composed of a plurality of pixels in a single vertical row, and each pixel is expressed in gradation by one vertical long dot in which dots are continuous in the vertical direction or a plurality of dots dispersed in a single vertical row ,
When the number of dots in a vertical column constituting each pixel is M, the gradation of each color when the pixel is CMY-color-separated is expressed as H _c , H _{m, and Hy} with values from 0 to 1, _{n c = H c × M,} n m = H m × M, a n _y = H _y × M, coloring n _c of the M dots, n _m, a n _y dots CMY colors,
Stereoscopic printed matter characterized by that.

( 3 ) a lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip images constituting the vertically long image is composed of a plurality of pixels of one column, and the more gradations in one longitudinal dots of the respective pixels in the vertical direction dots continuously,
When the number of dots in one vertical column constituting each pixel is M, the gradation of each color when the pixel is CMY-color-separated is expressed as H _c , H _m, Hy with values from 0 to 1, n _{c = H c × M, n} m = H m × M, a _{n y = H y × M,} n c, n m, a value smaller than the minimum value of n _y as n _k, of the M dots n _c -N _k , n _m -n _k , _ny -n _k , n _k dots are colored in CMYK colors ,
The CMY gradation is expressed by an intensity modulation method, or
The CMYK gradation is expressed by an intensity modulation method,
The stereoscopic printed matter according to claim 3, wherein the stereoscopic printed matter is a printed matter.

(4) Each dot before Symbol CMY or each dot of the CMYK is stereoscopic prints according to, characterized in that it is vertically formed (3).

(5) Each dot before Symbol CMY or each dot of the CMYK is vertically formed, steric according to (4) that are formed symmetrically in the vertical direction with respect to the center of the pixel Visual print.

(6) Each dot before Symbol CMY or each dot of the CMYK is stereoscopic prints according to, characterized in that it is formed as a plurality of longitudinal dots (3),.

( 7 ) Any one of ( 3 ) to (6) , wherein the K dots are formed in a region where the CMY three-color dots are to be formed overlappingly when CMY color separation is performed. The stereoscopic printed matter described in 1.

(8) each dot before Symbol CMY or the size of each dot of the CMYK,, to one of being set in accordance with the gradation being each designated by the constitution (3) (7) The stereoscopic printed matter described.

( 9 ) a lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip image constituting the vertically long image is composed of a plurality of pixels in a single vertical row, and each pixel is composed of a plurality of dots dispersed in a single vertical row ,
CMY gradation is expressed by a frequency modulation method, or
CMYK gradation is expressed by a frequency modulation method,
Stereoscopic printed matter characterized by that.

(10) each dot before Symbol CMY or stereoscopic prints of claim 9, wherein the CMYK dot is characterized in that it is formed randomly.

(11) each dot before Symbol CMY or the CMYK dot stereoscopic printed material according to (9) that are regularly formed at a substantially constant dot pitch in each color.

(12) each dot before Symbol CMY or the CMYK dots, in each color by a distance corresponding to (dot pitch) / 2, characterized in that it is formed with a longitudinally offset from the reference position The stereoscopic print according to ( 9 ).

(13) each dot before Symbol CMY or the CMYK dot, is a distance corresponding to the maximum dot pitch for each color, it is characterized in that it is formed with a random offset longitudinally from the reference position The stereoscopic print according to ( 9 ).

(14) each dot before Symbol CMY or the CMYK dot, is a maximum for each color by a distance corresponding to (dot pitch) / 2, and is formed with a random offset in the longitudinal direction from the reference position The stereoscopic print according to ( 9 ), wherein

( 15 ) A stereoscopic printed matter in which gradations of CMYK are expressed by a frequency modulation method,
K dots are regularly formed with random or substantially constant dot pitch,
Each of the CMY dots is formed in a region where the K dot is not formed and is positioned as the region is continuous.
The stereoscopic printed matter according to any one of ( 9 ) to ( 14 ), wherein:

( 16 ) The K dots are formed at the same gradation as the minimum gradation among the CMY gradations when the CMY color separation is performed,
The stereoscopic printed matter according to ( 15 ), wherein each dot of CMY is formed with a gradation obtained by subtracting the minimum gradation from each designated gradation.

( 17 ) The K dots are formed with gradations less than the minimum gradation among the CMY gradations when the CMY color separation is performed,
The stereoscopic printed matter according to ( 15 ), wherein each dot of CMY is formed with a gradation obtained by subtracting a gradation of K from each designated gradation.

( 18 ) The K dots are formed with a certain gradation or more and a certain gradation or less,
The stereoscopic printed matter according to ( 15 ), wherein CMY dots are formed with a gradation obtained by subtracting the K gradation from each of the CMY gradations when the CMY color separation is performed.

  In the present invention, in a three-dimensional printed material, the number of display images can be maximized by expressing the gradation with a dot row in the vertical direction by setting the number of dots in the horizontal direction of one pixel to one. In addition, the graininess of the image can be eliminated or reduced.

<< First Embodiment >>
A first embodiment of the stereoscopic print according to the present invention will be described with reference to FIGS. 6, 7, 8 </ b> A, and 8 </ b> B. In FIG. 6, the stereoscopic print 1 can be commonly used in the second to sixth embodiments in addition to the present embodiment, and includes a lenticular lens 11 and a color print image 12. The lenticular lens 11 includes a plurality of cylindrical lenses 111 oriented in the vertical direction and arranged in parallel in the horizontal direction. The stereoscopic print of the present invention can be produced by ink jet, thermal transfer, thermal sublimation printing, screen printing, or the like. That is, the dot in the present invention may be a halftone dot or a dot formed by a printing method such as inkjet, thermal transfer, thermal sublimation, or the like. In the following embodiment, an example of a color printed matter is shown, but a monochrome printed matter can be produced using the same technique.

  The color print image 12 is divided into a vertically long image 121 based on each of a plurality of images reduced in the horizontal direction (see G1, G2,..., GN in FIG. 4), and the back surface of the lenticular lens 11 Are arranged so as to be stereoscopically viewed.

  As shown in FIG. 7, the minimum component of the printed material is referred to as “dot”, and the entire M dots (for example, M is 30) arranged in the vertical direction, which is the minimum unit for gradation expression, are “pixels (PIX)”. Called.

  A display unit for performing three-dimensional display is referred to as “three-dimensional pixel”, which is a pixel in which pixels are arranged in the horizontal direction, and has a width equal to or approximately equal to the cylindrical lens 111 in the horizontal direction. In FIG. 7, a set of L pixels arranged in the horizontal direction constitutes one three-dimensional pixel. That is, one three-dimensional pixel is composed of a dot group of L dots horizontally and M dots vertically. In the following description, for the sake of simplicity, the horizontal width of the cylindrical lens is assumed to be equal to the horizontal width of the three-dimensional pixel.

When the dot resolution by printing is m [dpi (dot per inch)] and the line density of the cylindrical lens is k [lpi (lens per inch)], the horizontal width of one cylindrical lens is L = m / k. This corresponds to a dot row. For example, if m = 2,400 [dpi] and k = 80 [lpi], L = 30. One three-dimensional pixel corresponds to L (for example, 30) dot rows in the horizontal direction.
In the following description, the color of ink used for printing is represented by C for cyan, M for magenta, Y for yellow, and K for black.

In this embodiment, color separation by CMY is performed. When one pixel PIX is composed of M dots arranged in the vertical direction, the maximum number of gradations that can be expressed in each CMY color is M + 1. Since the width of one cylindrical lens 111 becomes the width of one pixel in an apparent three-dimensional display, if the height of the pixel PIX is substantially equal to the horizontal width of the cylindrical lens 111, a tertiary with a good balance between horizontal and vertical resolutions. The original image can be displayed. in this case,
M = L = m / k
It becomes.

The CMY gradations H _c , H _m , and H _y are expressed as real numbers from “0” to “1” (0 ≦ H _c ≦ 1, 0 ≦ H _m ≦ 1, 0 ≦ H _y ≦ 1). ).
At this time, the number of dots colored in each color of CMY within one pixel is given by n _c = MH _c , n _m = MH _m , and _ny = MH _y , respectively.

In this embodiment, the CMY gradation is expressed by an intensity modulation (AM) method. That is, a vertically long dot is formed for each CMY color in the pixel PIX, and the height of the corresponding vertically long dot is determined by the CMY gradation. Specifically, Vertical dot corresponding to CMY is constructed by colored continuous n _c, n _m, a n _y number of dot in the vertical direction. Of course, the same dot can be simultaneously colored in a plurality of CMY colors.

8A and 8B show details of the present embodiment. Here, a case where M = 30, n _c = 19, n _m = 14, and n _y = 3 is shown.
In the case of vertically long dots, when the interval between the colored dots is large, the colored dots are often recognized as “dots” for the observer, and such dots are arranged without aligning the center position in the horizontal direction. And may be perceived as randomness on the image surface.
In FIG. 8A, when forming a print image using YCM, dots are arranged without aligning the center positions. Therefore, as shown in FIG. 8B, the randomness of the image can be reduced by forming the center of the vertically long dots in the horizontal direction.
In the first embodiment described above, the case where CMY color separation is performed has been described. However, even when CMYK color separation is performed, a dot pattern can be similarly formed. However, the dots to be colored are determined in consideration of the fact that the K-colored dots remain the K color even if they are further colored with the CMY color.

<< Second Embodiment >>
In the second embodiment, color separation by CMYK is performed. For the dot pattern colored by the method based on the CMY color separation shown in the first embodiment, the color of the dot that is colored by overlapping all of CMY is realized as K (black ink dot).

  FIGS. 9A and 9B show CMYK dot patterns determined based on the CMY dot patterns shown in FIGS. 8A and 8B.

  In the above description, a single color dot, a CMY color dot, or a CMYK color dot has been described as one vertically long dot, but it can also be formed as a plurality of vertically long dots.

In the above example, the dot size has been described as being constant. However, the size of each single color dot, each CMY dot, or each CMYK dot should be set according to each designated gradation. You can also.
<< Third Embodiment >>

  In the third embodiment, the CMY gradation is expressed by a frequency modulation (FM) method. That is, the dots in the pixel PIX are dispersed and colored CMY. In the expression by the AM system of the first embodiment and the second embodiment, vertically long dots are easily perceived and a discontinuity may occur in the vertical direction. However, in this embodiment employing the FM system, this discontinuity is Less.

The M dots constituting one pixel PIX, as shown in FIG. 10, each n _c pieces to the color of CMY, n _m pieces, colored randomly n _m pieces of dots. However, one dot is naturally allowed to be colored in a plurality of CMY colors at the same time. FIG. 10 shows a case where M = 30, n _c = 14, n _m = 12, and n _y = 14.

<< 4th Embodiment >>
In the third embodiment, since the dot coloring pattern is determined at random, the image has a graininess, and the colored dot pattern at corresponding points on the two images displayed on the left and right retinas when stereoscopically displayed. Due to the difference, visual field struggle may occur and you may feel glare in the image. Therefore, in the fourth embodiment, in order to solve these problems, the dots are colored at almost equal intervals in each color of CMY instead of random. Here, each color dot pitch of CMY is _{p c = M / n c,} p m = M / n m, is represented by p _y = M / n _y.

Pitch p _c, p _m, if the value of p _y are real rather than integer, which upon coloring a dot at equal intervals approximated by an integer, be biased to the coloring of the M dots in 1 pixel occurs is there. Therefore, by evaluating the values after the decimal point and coloring the dots at almost equal intervals, it is possible to eliminate the uneven coloring of the dots.

  For example, if M = 30 and n = 7, then p = 4.29. When approximating p = 4, the dot positions to be colored are 0, 4, 8, 12, 16, 20, 24, and as shown in FIG. A region is formed on the lower side. By evaluating the number after the decimal point, the dot positions to be colored are 0, 4, 9, 13, 17, 21, and 25, and as shown in FIG. However, FIG. 11B shows a dot pattern of any one color of CMY.

However, since the dot coloration position is shifted upward throughout, further, the dot positions to be colored first respectively CMY colors, from the reference position, only _{p c / 2, p m /} 2, p y / 2 Offset Thus, the vertical symmetry of the dot position colored in the pixel is improved.
In the above example, since p / 2 = 2.14, the dot positions to be colored are 2, 6, 11, 15, 19, 24, and 28. As shown in FIG. Symmetry is improved.

  If the dot coloring position in the pixel PIX has no vertical symmetry and is shifted upward as a whole, the dot pattern of the image that can be seen through the lenticular sheet in the portion where the gradation change gradually changes in the horizontal direction. As shown in FIG. 12A, the distribution of the dot positions to be colored is concentrated on the upper side. FIG. 12A shows a case where the number n of colored dots changes to 9, 8, and 7. On the other hand, if the positions of the colored dots are offset, as shown in FIG. 12B, the colored dot positions change in a vertically symmetrical manner, so that the change in the dot pattern becomes inconspicuous. However, in FIGS. 12A and 12B, only one dot pattern of CMY is shown.

FIG. 13 shows an example of a CMY dot pattern formed by a dot coloring method with improved vertical symmetry. The case where M = 30, n _c = 15, n _m = 10, and n _y = 12 is shown.
<< 5th Embodiment >>

In the fifth embodiment, the amount of offset in the vertical direction of the dot pattern is randomly changed by the formation method of the CMY colored dot pattern described in the fourth embodiment.
In the fourth embodiment, the dot pattern of the image that can be seen through the lenticular sheet is shown in FIG. 14A (when M = 30, n = 7), for example, at a location where the gradation changes constant or gently in the horizontal direction. In addition, the coloring pattern in the pixel may be constant or substantially constant in the horizontal direction, and the colored dots may be connected horizontally, which may be perceived as a horizontal line. Therefore, as shown in FIG. 14B, the occurrence of horizontal lines is suppressed by randomly offsetting the coloring pattern in the vertical direction. Dot pitch of CMY is, p _c, p _m, because it is p _y, the maximum offset amount of colored pixels PIX vertically adjacent dots does not enter the _{p c -1, p m -1,} p y - 1. However, if the amount of random offset is large, the image will have a graininess, and when viewing stereoscopically, there will be a visual field struggle due to the difference in the colored dot pattern at the corresponding points on the two images displayed on the left and right retinas. Occasionally, you may feel glare in the image. Therefore, in practice, it is often preferable to set the maximum offset amounts to p _c / 2, p _m / 2, and p _y / 2.

Examples of CMY dot pattern forming the maximum offset amount as _{p c / 2, p m /} 2, p y / 2 shown in FIG. 15. The case where M = 30, n _c = 15, n _m = 10, and n _y = 12 is shown.
In the third to fifth embodiments, the case where CMY color separation is performed has been described. However, even when CMYK color separation is performed, a dot pattern can be similarly formed. However, the dots to be colored are determined in consideration of the fact that the K-colored dots remain the K color even if they are further colored with the CMY color.

<< 6th Embodiment >>
In the sixth embodiment, color separation by CMYK is performed. This is realized by setting the color of the dots colored by overlapping CMY to K with respect to the dot pattern colored by the frequency modulation (FM) method shown in the third to fifth embodiments.
FIG. 16A shows an example in which FIG. 10 which is an example of the third embodiment is converted into CMYK color separation, and FIG. 16B is a diagram in which FIG. 13 which is an example of the fourth embodiment is converted into CMYK color separation. FIG. 16C shows an example in which FIG. 15 which is an example of the fifth embodiment is converted into CMYK color separation.

<< 7th Embodiment >>
In the present embodiment, K is added to the expression in CMY in the third to fifth embodiments and expressed in CMYK.

  In the sixth embodiment, first, the coloring position of the K dot is determined by the same method as the CMY dot coloring method described in the third to fifth embodiments. Next, CMY dot coloring methods described in the third to fifth embodiments are applied to dots in which K dots are not colored, assuming that these dots are continuous. Incidentally, since the dot colored K is CMY and the color of the colored dot remains K, the colored dots K and CMY are determined separately as described above.

17A shows an embodiment in which the formation of K is introduced into the third embodiment, FIG. 17B shows an embodiment in which the formation of K is introduced into the fourth embodiment, and FIG. Embodiment which introduce | transduced formation of K into 5th Embodiment is shown. In FIGS. 17A, 17B, and _17C , when color representation is performed in CMY, n _c = 15, n _m = 14, and _ny = 8, which are expressed as CMYK, n _k = 8, n _In this case, the color is expressed as _c = 7, _nm = 6, and _ny = 0. However, _nk represents the number of dots of K.

Here, since black can be represented by CMY synthesis without necessarily using K, K dots can be formed in any gradation, but in FIG. The tone is formed with the same tone as the minimum tone. In this case, each dot of CMY can be formed with a gradation obtained by subtracting the minimum gradation from each designated gradation. In other words, each color dot number n _c of Disassembling CMY color, n _m, as n _y, the number of dots _{K n k = min (n c} , n m, n y) as each color of CMY The number of dots is n _c −n _k , n _m −n _k , and n _y −n _k .

Note that K can be formed at a predetermined gradation lower limit or more. Furthermore, K can be formed between a predetermined gradation lower limit value and a predetermined gradation upper limit value. Using K has the effect of increasing the contrast of the image, and the amount of ink used can be saved. It is also important when printing characters and the like. However, if K is frequently used in the frequency modulation (FM) method, the K dot has a higher contrast than other CMY dots, so that it may be recognized as dull or dirty in the image rather than being recognized as a gradation. is there. Also, black expressed as a combination of CMY and black expressed as K may be different. Therefore, it is necessary to adjust the gradation range using K according to the image. Specifically, the K dots can be formed with gradations of a predetermined gradation lower limit value that is less than the minimum gradation among the CMY gradations. Alternatively, K can be formed between a predetermined gradation lower limit value and a predetermined gradation upper limit value.
In each of the above embodiments, the case where color printing is performed by color separation of CMY and CMYK has been described. However, the present invention can be similarly applied to a case where more color separation is performed as in an ink jet printer.

It is a figure which shows the stereoscopic vision printed matter by the conventional lenticular system. It is a figure which shows a mode that the image used for a stereoscopic printed matter is image | photographed by four cameras C1, C2, C3, and C4 arranged in parallel. (A), (B), (C), (D) is a diagram showing a model of captured images when two objects A and B are photographed by the four cameras shown in FIG. Change from M to N (A), (B), (C), and (D) are diagrams illustrating a state in which a captured image is divided into M strip images in the vertical direction. Change from M to N (A) is a diagram showing a state where group images are concatenated, and (B) is a diagram showing a printed matter created by compressing the concatenated images 1/4 times in the horizontal direction. It is explanatory drawing which shows embodiment of the stereoscopic vision printed matter of this invention, (A) is a schematic explanatory drawing of a stereoscopic vision printed matter. DC deletion It is a figure which shows in detail the three-dimensional pixel, pixel, and dot in the stereoscopic vision printed matter of this invention. It is a figure which shows the dot pattern which comprises the pixel which performed the process in 1st Embodiment of this invention which performs the coloring by the dot of CMY, (A) is a case where the coloring position of a dot pattern is not vertically symmetrical, (B) is This is a case where the coloring positions of the dot pattern are vertically symmetrical. It is a figure which shows the dot pattern which comprises the pixel which performed the process in 2nd Embodiment of this invention which performs the coloring by the dot of CMYK, (A) is a case where the coloring position of a dot pattern is not vertically symmetrical, (B) is This is a case where the coloring positions of the dot pattern are vertically symmetrical. It is a figure which shows the dot pattern which comprises the pixel which performed the process in 3rd Embodiment of this invention which performs coloring by the dot of CMY. It is a figure which shows the dot pattern which comprises the pixel which performed the process in 4th Embodiment of this invention, (A) is a figure which shows the dot pattern when the dot pitch below a decimal point is not considered, (B) is a decimal part. FIG. 6C is a diagram in which the uneven arrangement of colored dots is eliminated in consideration of the dot pitch of FIG. 5C, and the arrangement of the colored dots is shifted by a half pitch so that the arrangement of the dots is vertical with respect to the center of the pixel. It is the figure formed symmetrically. It is a figure which shows 4th Embodiment of this invention, (A) is a figure which shows the case where there is no up-down symmetry of the coloring position of the dot in each pixel, and it has shifted to the upper side entirely, (B) FIG. 6 is a diagram in which the arrangement of colored dots in each pixel is shifted by a half pitch and the arrangement of the dots is formed symmetrically in the vertical direction with respect to the center of the pixel. It is a figure which shows the example of the dot pattern formed with the coloring method of the dot which improved the vertical symmetry in 4th Embodiment of this invention which performs the coloring by the dot of CMY. It is a figure which shows 5th Embodiment of this invention, (A) is a figure which shows a mode that a dot is connected horizontally, and is perceived as a horizontal line, (B) is offsetting a coloring pattern at random in a perpendicular direction. It is a figure which shows a mode that generation | occurrence | production of the horizontal line was suppressed. It is a figure which shows the example of the dot pattern formed with the coloring method of the dot which improved the vertical symmetry in 5th Embodiment of this invention colored with the dot of CMY. It is a figure which shows 6th Embodiment of this invention which performs the black expression by the dot of CMY by K dot in CMYK, (A) is a figure which shows the example which converted CMY color separation in 3rd Embodiment into CMYK color separation. FIGS. 7A and 7B are diagrams illustrating an example in which CMY color separation in the fourth embodiment is converted into CMYK color separation, and FIG. 8C is a diagram illustrating an example in which CMY color separation in the fifth embodiment is converted into CMYK color separation. . It is a figure which shows 7th Embodiment of this invention which determines the coloring dot position of CMY after deciding the coloring position of K dot first, (A) shows embodiment which applied the coloring method in 3rd Embodiment. FIG. 5B is a diagram showing an embodiment to which the coloring method in the fourth embodiment is applied, and FIG. 5C is a diagram showing an embodiment to which the coloring method in the fifth embodiment is applied.

Explanation of symbols

1 Stereoscopic Printed Material 11 Lenticular Lens 12 Color Print Image 111 Cylindrical Lens 121 Longitudinal Image

Claims (18)

A lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip image constituting the vertically long image is composed of a plurality of pixels in a single vertical row, and each pixel is expressed in gradation by one vertical long dot in which dots are continuous in the vertical direction or a plurality of dots dispersed in a single vertical row ,
Wherein when the number of dots tandem constituting each pixel is M, the color of the colored dot number n _c when the CMY color separation of this pixel, n _m, when the n _y, among the M dots n _c, n _m, coloring n _y dots CMY colors,
Stereoscopic printed matter characterized by that. A lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip image constituting the vertically long image is composed of a plurality of pixels in a single vertical row, and each pixel is expressed in gradation by one vertical long dot in which dots are continuous in the vertical direction or a plurality of dots dispersed in a single vertical row ,
When the number of dots in a vertical column constituting each pixel is M, the gradation of each color when the pixel is CMY-color-separated is expressed as H _c , H _{m, and Hy} with values from 0 to 1, _{n c = H c × M,} n m = H m × M, a n _y = H _y × M, coloring n _c of the M dots, n _m, a n _y dots CMY colors,
Stereoscopic printed matter characterized by that. A lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip images constituting the vertically long image is composed of a plurality of pixels of one column, and the more gradations in one longitudinal dots of the respective pixels in the vertical direction dots continuously,
When the number of dots in one vertical column constituting each pixel is M, the gradation of each color when the pixel is CMY-color-separated is expressed as H _c , H _m, Hy with values from 0 to 1, n _{c = H c × M, n} m = H m × M, a _{n y = H y × M,} n c, n m, a value smaller than the minimum value of n _y as n _k, of the M dots n _c -N _k , n _m -n _k , _ny -n _k , n _k dots are colored in CMYK colors ,
The CMY gradation is expressed by an intensity modulation method, or
The CMYK gradation is expressed by an intensity modulation method,
The stereoscopic printed matter according to claim 3, wherein the stereoscopic printed matter is a printed matter. The stereoscopic printed matter according to claim 3, wherein each dot of the CMY or each dot of the CMYK is formed in a vertically long shape. 5. The three-dimensional object according to claim 4 , wherein each of the CMY dots or each of the CMYK dots of the pixel is formed in a vertically long shape, and is formed symmetrically in the vertical direction with respect to the center of the pixel. Visual print. 4. The stereoscopic print according to claim 3, wherein each of the CMY dots or each of the CMYK dots is formed as a plurality of vertically long dots. 5. 7. The stereoscopic view according to claim 3 , wherein when the CMY color separation is performed, the K dots are formed in a region where the three CMY color dots are to be formed in an overlapping manner. Printed matter. The stereoscopic printed matter according to any one of claims 3 to 7 , wherein the size of each dot of the CMY or each dot of the CMYK is set according to each designated gradation. A lenticular lens in which a plurality of cylindrical lenses oriented in the vertical direction are continuously arranged in the horizontal direction;
A color print image in which a plurality of images are divided into strip images, and a vertically long image reduced in parallel in the horizontal direction is arranged to be viewed stereoscopically on the back of the lenticular lens;
A stereoscopic print consisting of
The minimum component of the printed image is represented by dots,
The strip image constituting the vertically long image is composed of a plurality of pixels in a single vertical row, and each pixel is composed of a plurality of dots dispersed in a single vertical row ,
CMY gradation is expressed by a frequency modulation method, or
CMYK gradation is expressed by a frequency modulation method,
Stereoscopic printed matter characterized by that. The stereoscopic printed matter according to claim 9 , wherein each of the CMY dots or the CMYK dots is randomly formed. The stereoscopic printed matter according to claim 9 , wherein the CMY dots or the CMYK dots are regularly formed with a substantially constant dot pitch for each color. Each dot of the CMY or the CMYK dots, in each color by a distance corresponding to (dot pitch) / 2, that is formed with a longitudinally offset from the reference position to claim 9, characterized in The stereoscopic printed matter described. Wherein 9 dots of the CMY or the CMYK dots, a maximum for each color by a distance corresponding to the dot pitch, characterized in that it is formed with a random offset longitudinally from the reference position Stereoscopic print. Each of the CMY dots or the CMYK dots is formed with a random offset in the vertical direction from the reference position by a distance corresponding to (dot pitch) / 2 at the maximum in each color. The stereoscopic print according to claim 9 . A stereoscopic printed matter in which the gradation of CMYK is expressed by a frequency modulation method,
K dots are regularly formed with random or substantially constant dot pitch,
Each of the CMY dots is formed in a region where the K dot is not formed and is positioned as the region is continuous.
The stereoscopic print according to claim 9, wherein: The K dots are formed with the same gradation as the minimum gradation among the CMY gradations when the CMY color separation is performed,
Each dot of CMY is formed with a gradation obtained by subtracting the minimum gradation from each designated gradation.
The stereoscopic print according to claim 15 . The K dots are formed with gradations less than the minimum gradation among the CMY gradations when the CMY color separation is performed,
Each dot of CMY is formed with a gradation obtained by subtracting the gradation of K from the designated gradation.
The stereoscopic print according to claim 15 . The K dots are formed with a certain gradation or more and a certain gradation or less,
CMY dots are formed at a gradation obtained by subtracting the K gradation from each CMY gradation when the CMY color separation is performed.
The stereoscopic print according to claim 15 .