JPH11143352A - Method and device for automatically plotting makeup simulation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a method and a device for simply executing makeup simulation. SOLUTION: Maked-up model face images prepared by makeup simulation by using computer graphics and the procedures of makeup simulation preparing respective model face images are previously stored (1). Then one of the previously prepared model face images is selected for a subject for makeup simulation and the makeup simulation procedure of the selected model face image is adapted to a face image of the subject to prepare a face image to which the same makeup as the selected model makeup face image is applied (2).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a makeup simulation drawing method using computer graphics. Further details include beauty salons, makeup sales, beauty schools,
The present invention relates to a field of performing a makeup face image or a simulation thereof in a transformation desire amusement system.

[0002]

2. Description of the Related Art Conventional software for performing makeup simulation drawing on a face image employs a method of making individual parts to complete makeup of the entire face.
That is also a method of attaching the desired makeup shape.
For example, for eyebrows, a method is used in which a shape of an eyebrow is selected, and the shape is simply fitted on the original eyebrow according to the size of the eyebrow in the face image. Similarly, in the case of applying lipstick to the lips, a method of pasting together a prepared mold is used.

[0003]

In the case of performing a makeup simulation drawing, fine makeup processing is performed while displaying a screen, but in practice, it is a considerably time-consuming operation. Also, there is a problem that it is difficult for the person who wants to make makeup to select what kind of makeup is desired. An object of the present invention is to provide a method and apparatus for easily performing makeup simulation even in such a case.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a makeup simulation drawing method using computer graphics. Model face image, and the procedure of makeup simulation that created the model face image is stored in advance,
(2) For the makeup simulation subject, the prepared model face image is selected, and the makeup simulation procedure of the selected model face image is selected by applying to the makeup simulation subject face image. A face image with the same makeup as the model makeup face image is created.

Also, in a makeup simulation drawing apparatus using computer graphics, (1) a makeup model face image created by makeup simulation using computer graphics, and a makeup simulation procedure for creating the model face image (2) selecting a model face image prepared in advance for a makeup simulation subject, and applying a makeup simulation procedure of the selected model face image to the makeup simulation subject face image A face image having the same makeup as the selected model makeup face image.

According to the above method or apparatus,
By simply selecting a model makeup face image, a simulation for applying the same makeup can be performed, and a simulation drawing can be automatically performed. However, in order to actually perform the method of the present invention, it is desirable that the makeup simulation program be automated as much as possible after the designation of the face image to be makeup.

As the makeup of the model, drawing of eyebrows, lipstick on lips, powder on skin (including foundation, eyeshadow, blusher, etc.) and color contact are performed. Each drawing is performed as follows. -Eyebrow ... Defines the area of the eyebrow, and also shaves off the eyebrows at the base of the eyebrow area and draws the surrounding skin color. Select an eyebrow shape and draw the eyebrow shape in the eyebrow area. At this time, processing is performed for each pixel of the eyebrow area,
The eyebrows are drawn according to a certain formula. Lipstick: Defines the lip area to be put on lipstick, and paints the lip area with the selected lipstick color. In this case, the rendering process is hue, lightness,
Performs with the three primary colors of saturation, replaces the lip area with the lipstick hue,
In addition, the brightness and saturation of the original lips are converted into the brightness and saturation of the lipstick, and the lipstick is drawn on the lip area. At this time, an operation such as glossing is performed. Further, the boundary between the skin and the lips is made to have a continuous color by using fuzzy theory near the boundary between the lips and the skin.・ Skin powder make-up ... Draws by mixing skin color value and powder color value at the specified ratio. In addition,
Powder makeup includes foundation, eyeshadow,
Including makeup such as blusher. Color contact: After defining the position where the color contact is fitted (the position where the color portion of the color contact is drawn), the color value of the color contact and the color value of the iris are mixed and displayed at a certain ratio.

The following information is recorded as make-up information for the model made by the above method.・ Eyebrows …… Eyebrow type, eyebrow color (color value), relative position and size corresponding to the face ・ Lipstick …… lipstick color value, gloss level ・ Powder …… Powder color value for each pixel Painted color ・ Color contact …… Color value of color contact and ・ Facial image definition point

On the other hand, the process of applying make-up of the selected model to the face image of the user is performed in the following procedure. First,
As a pre-stage, a face image of the user is taken into a computer by a digital camera or the like, and the face image of the user is defined in the same form as set in the model. Hereinafter, the same makeup attribute value as the makeup of the model is fetched and applied to the defined user's face image. Makeup varies depending on the location, but eyebrows, lipsticks, and color contacts are drawn on the user's face according to the method of drawing on the model using the makeup material applied to the model. However, since there is a possibility that the density and the type of powder may differ depending on the location, the correspondence between the model and each pixel of the user's face image is made, and makeup is applied to the user's face image. Specifically, using morph technology,
A portion of the pixel of the face image of the model corresponding to the pixel of the face image of the user is calculated, and the same powder as that applied to the pixel of the model is applied to each pixel of the skin attribute of the user.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. First, the makeup of the model will be described. To perform powder drawing (including drawing of makeup materials such as foundation, eyeshadow, blusher, etc.), the skin color and the powder color are mixed in a certain ratio. In other _{words, C n (x, y)} = C OP (x, y) · (1-r n (x, y)) + C Q (x, y) · r n (x, y) in the ... (1) Ask. Where C _n is the color value of the skin after powder drawing, C _OP make-color values of the skin immediately before changing the powder (initial value color value C _O skin when taken in from the image input device) , C _Q are the powder color values, r _n
Is a mixing ratio (mixing ratio. (X, y) is a coordinate value, but represents a pixel located at (x, y) in actual drawing.
r _n is the cumulative density obtained by the same kind of powder is overcoated (cumulative mixing ratio), the previous cumulative density r _n-1, when the density r painting new, r = F (d) r _n = r _n-1 + r-r _n-1 r (2) Where f (d) is the distance d from the designated point
Represents the function of Usually, it is defined that the density r decreases as the distance increases. In the case of n = 1 That is r _0, and r ₀ = 0.

Each time the powder color value is changed, the skin color C _OP is replaced with the skin color value C _n immediately before the change, the powder color value C _Q is replaced with the new powder color value, and all the accumulated densities r _{If n} is initialized to 0, Equation 1 can be used as it is under a new color value.

Next, in the drawing of the eyebrows, the position for drawing the selected eyebrow shape from the eyebrow area, the outer corner of the eye, and the end of the nostril is determined. In this case, for the eyebrow region, the original eyebrows are shaved off once and changed to the surrounding skin color C _O, and it is determined whether or not to draw the eyebrows for each pixel. Calculate the direction and thickness, length, density, etc., and draw in a state close to nature with the same feeling as drawing with the eyebrow pen. Details will be described below.

An eyebrow image is formed by the following procedure. (1) Set the eyebrow drawing area. (2) The base position of the eyebrows in the eyebrow drawing area is set by a mathematical expression including a random number. (3) The length and direction of the eyebrows are determined from a formula including the root position of the eyebrows and a random number. (4) The eyebrow depth obtained by the calculation of the eyebrow length and direction is calculated based on the eyebrow root position and the distance from the eyebrow root. (5) Draw the eyebrows based on the numerical values obtained by the above calculation.

If a uniform random number is applied to the value obtained in the above (4), the depth of each eyebrow also varies, resulting in a more natural drawing. The following formula is given as a specific example. (1) Based on the eyebrow template mask image for the eyebrow drawing area, the x-coordinates of the eyebrow head, eyebrow peak, and eyebrow tail are lx, cx, rx, the y-coordinate of eyebrow peak is eby, and the new eyebrow is The vertical center cy (x) of the area and the height hy (x) of the new eyebrow area are obtained, and the maximum value of hy (x) is set to hymax. (2) Each point (x, y ), The point (x, y) where rand2 ≦ ceb · rate1 · rate2 is determined as the eyebrow root position (sx, sy). Where rand2 is a uniform random number that takes a value of 0 ≦ rand2 ≦ 1 ceb is a value that satisfies 0 ≦ ceb ≦ 1 c1 is a constant that represents the density of the entire eyebrow The constants rate1 and rate2 are values obtained by the following formula rate1 = 1- (| x-cx |) / {(| cx-lx |) · c1} (x <cx) = 1- (| x-cx |) / {(| Cx-rx |) ・ c1} (x ≧ cx)) rate2 = 1-{(| y-cy (x) |) / (dy (x) / 2)} ^ 3 (3) Root of eyebrows Determine the length l of eyebrows and its direction θ from the position (sx, sy) by the following formula: θ = -π / 6 + 2/3 · π · (| sx-rx | / | rx-lx | ^ 2 -rand2 · π / 9 (y ≧ cy (sx)) = -π / 6 + 2/3 · π · (| sx-rx | / | rx-lx | ^ 2 + rand2 · π / 9 (y <cy (sx)) l = hymax / 4 ・ (1 + rand2 / 2) (4) Represents the density of the point (x, y) on the eyebrows represented by the straight line (sx, sy)-(ex, ey) Obtain the eyebrow degree ebrate (x, y) by the following formula: ebrate (x, y) = 1-sqr {(x-sx) ^ 2 + (y-sy) ^ 2)} / [c2 ・ sqr {(ex -
sx) ^ 2 + (ey-sy) ^ 2}] Here, sqr (z) is the square root of the variable z, and c2 is a constant. (5) The eyebrows are drawn based on the numerical values obtained by the calculation means.

The eyebrows are drawn by selecting the eyebrow type (eyebrow texture mask image). In order to determine the position where the eyebrows are drawn according to the eyebrow type, the definition of the characteristic points of the face is shown in FIG. This is performed at four points, F1 to F4. That is, each point is F1: inside the nostril F2: Mt. Bizan F3: outside the iris F
4: Eye corners.

The relationship between the eyebrow-shaped coordinate points lx, ex, eby in FIG. 2 and the facial feature points in FIG. 1 is given by: lx = F1.x ex = (F3.x + F4.x) / 2 eby = F2 The face image and the eyebrow shape are synthesized by enlarging, reducing, and moving the newly drawn eyebrow shape in FIG. Here, Fn.x and Fn.y represent the x coordinate and the y coordinate at the point Fn, respectively. If the eyebrows are drawn according to the above-mentioned various formulas according to the eyebrow shape, the eyebrows can be drawn as if drawn with an eyebrow pen.

The lipstick drawing process for the lips is handled in a hue, lightness, and saturation color space. First, define the area of the lip where the lipstick will be worn. However, in the case of the lips, a region where the boundary between the skin and the lips is ambiguous occurs, so that the lip region and the ambiguous region are separately processed as shown in FIG. 3 (the black dots in the figure are defined points, and the lip boundaries are Curve approximation). For the lip area, the lip hue is changed to the lipstick hue. In addition, when the lightness and saturation are represented by two-dimensional coordinates, the lipstick tone (lightness and saturation) and the lip tone (lightness and saturation) are used so that the correlation between the lightness and saturation of the lips is not lost. After the conversion, draw the lipstick.

FIG. 4 is a diagram showing an outline of this conversion processing, in which white circles are moved to triangles. by this,
Lip wrinkles and shine can be expressed as they are. Further, by specifying the glossiness, glossing or matting is performed. As the processing, the tone of a non-shadow pixel (a pixel having a relatively higher brightness than a predetermined brightness) is moved on a line connecting the lipstick tone point (black circle in FIG. 4) and the total reflection point. This lipstick drawing process is called a lipstick lipstick drawing method.

On the other hand, fuzzy control is used for an ambiguous area. That is, the degree of influence between the lip-lipstick drawing method and the skin-drawing method is calculated using fuzzy control, and lipstick is drawn based on the ratio obtained here. Here, the skin lipstick drawing method refers to C _{Q in the} equation (1) used in the powder drawing.
Is a lipstick tone and C _OP is a skin tone, and the skin and the lipstick are mixed at a certain ratio r _n (the subscript n has no meaning and is constant). Fuzzy control is performed as follows.

The α value is obtained from the membership function relating to the distance from the boundary line, the membership function relating to the brightness, and the membership function relating to the saturation, and the membership function relating to the lipstick-lip drawing method and the membership function relating to the skin-lipstick drawing method are obtained. Α cut. Next, the center of gravity (operation amount) of the area obtained from the α-cut is obtained, and the operation amount is applied to each pixel of the ambiguous region in the lip-lipstick drawing method and the skin-lipstick drawing method, and the resulting movement vector is calculated. By adding to the tone vector before conversion, lipstick drawing corresponding to each degree of influence is performed. By the above operation, color continuity near the boundary between the skin and the lips can be expressed.

FIG. 5 is a graph showing each membership function. That is, in the figure, (1) is a membership function related to the distance from the boundary line, (2) is a membership function related to lightness, (3) is a membership function related to saturation, and (4) is a member related to the lip-lipstick drawing method. The ship function, (5), is a membership function for the skin lipstick drawing method.

The meanings of the symbols in the figure are as follows. A0: Inside the lips, not near the outline A1: Near the outline A2: Outside the lips, not near the outline Lip-like CA0: Lots of lipstick drawing operation CA1: Little lipstick drawing operation CA2: Little lipstick drawing operation CB0: Lot of lipstick drawing operation CB1: Lipstick drawing CB2: Less operation amount for drawing skin lipstick W (0,0): Total reflection point VR: Vector connecting total reflection point and lipstick tone point VL: Weighting of total reflection point and lip pixel tone Vector connecting the average points

With regard to the color contact, an operation in accordance with the lipstick lipstick drawing method is performed, and the color contact is expressed in a form utilizing the characteristics of the iris. That is, while specifying the range of the iris of the eye, the color value of the iris and the color value of the color contact are separated into hue, lightness, and color, and the hue of the iris is converted into the hue of the color contact. The tone changes to a color contact tone while maintaining the relative relationship of the tones (see FIG. 4, where the circles indicate the iris tone distribution and the triangles indicate the converted iris tone distribution). The glazing translates the tones of non-shadow pixels of the iris (pixels having a higher brightness than a given brightness) along the line connecting the total reflection point W and the tone point of the color contact. Note that a tone point is a point determined by lightness and chroma, and when lightness is handled in 10 levels, the total reflection point W is represented by W (10,0).

First, the model face image is converted into a face image in a format as shown in FIG. 6 so that the makeup of the model made as described above can be applied to the user's face image by selecting the model. Define feature points. lipstick,
For eyebrows and color contacts, if you only know the types of cosmetics and accessories you can wear and the characteristics of makeup,
Makeup can be applied to the face image of the user. Therefore, the makeup attribute is registered as follows.・ Eyebrows …… Eyebrow type, eyebrow color (color value), relative position and size corresponding to the face • Lipstick …… Color value of lipstick, gloss level • Color contact …… Color value of color contact

However, in the case of powder, since the manner in which makeup is applied differs depending on the location, the following contents are registered as makeup attributes for each pixel. Powder ...... density was painted the color value of the powder for each pixel (cumulative mixing ratio r _n).

Here, a color value C _Pi and a cumulative mixing ratio r _ni at that time are registered in accordance with the order of applying powders of different types (i is the order of applying powder C _Pi ). r _ni is (2)
Record only the final result obtained by the formula.

Next, a process for automatically applying the same make-up as the model make-up to the user's face image will be described. The feature points of the face image are defined for the user's face image captured into the computer by an image data input device such as a digital camera in the same manner as when the model is defined. Since this definition point is a reference when applying the makeup of the model to the makeup of the user, it is specified as much as possible at a location corresponding to the feature point of the face image of the model.

When face images of a plurality of models displayed on the screen are selected (the same model is displayed as a separate menu when makeup is different), eyebrows, lipsticks, and color contacts are described in the makeup of the model based on the makeup attributes. Make up automatically by the method. However, since makeup differs for each pixel for powder, makeup is performed using morphing technology. Hereinafter, this point will be described.

The morphing includes warping and dissolve.
There are types. The former is a method of transforming from a certain form to another form by finding corresponding points and transforming the latter by mixing a color before transformation and a color after transformation at a certain ratio. Is the way. Warp is used for drawing the powder of the present invention.

In the warp, the original image (source image)
The source image can be transformed into the target image by associating the pixels of the image with the pixels of the transformed image (target image). There are various methods for morphing. Here, first, a point when a perpendicular is dropped from a certain point (pixel) to the reference line with respect to a reference line segment (hereinafter referred to as “reference line”). Assuming that the internal division ratio when the line segment is divided and the distance from a certain point to the reference line do not change, the point of the source image is obtained from the point of the target image.

In the target image shown in FIG. 7, a point H is obtained by dropping a perpendicular line from a point P to the reference line AB. The point H divides the line segment AB at t: 1-t, and from the point H to the line segment AB. Is set to h (however, when the point H deviates from the line segment AB, H is a point on an extension line of AB). A dash is attached to a symbol for a corresponding point in the source image corresponding to the target image. However, it is assumed that the internal division ratio t: 1-t and the length h of the perpendicular line do not change. Under this _{condition, t = V PA · V /} | V | 2 h = V PA · per (V) / | V | V PA '= tV' + hper (V') / | V'| or, P' = A ′ + tV ′ + hper (V ′) / | V ′ | (3) Here, when the vectors are A and B, A
B is an inner product, and | A | represents the length of vector A.
When a position vector from the coordinate origin is used, each vector can be expressed as follows: V = B−A V _PA = P−A V ′ = B′−A ′ V _PA ′ = P′−A ′ Further, per (V) is a vector perpendicular to the vector V and having the same length as V. That is, the component of V is (x,
If y), the component of per (V) is (y, -x) or (-y, x). Either one can be used, but the program must use one of them. From equation (3), point P
'Are obtained, the point P of the target image is obtained.
Can correspond to the point P 'of the source image.

However, the reference line segment (line A in FIG. 7)
B, A′B ′ or the vectors V, V ′) are not necessarily one, so that there are a plurality of source target points corresponding to the target point P. For example, the line connecting the black points in FIG. 6 is the reference line. Now, as shown in FIG. 8, points obtained from each reference line are represented by P1 ', P2',.
When PN ', P'each displacement (P _i'-P)
As a weighted average of _{That, P'= P + Σw i (} P i '-P) | obtained by / Σw _i ......... (4). Here, Σ is a summation symbol for i. W _i is the i-th weighting coefficient, and is defined by the following equation. _{w i = {| V i |} p / (a + dis)} b ......... (5) dis = | P-A i | if t <0 = h i if 0 ≦ t ≦ 1 = | P-B i | if t> 1

Although dis in the above equation represents the distance between the point P and the line segment A _i B _i , when the internally divided point H _i deviates from the line segment, the length of the line segment P _Ai or the line segment P _Bi is defined as the distance I do. a is a parameter for avoiding zero diving (the denominator becomes 0),
Set a value greater than 0. The larger the value of a, the easier the control is, but the lower the sensitivity. b is preferably a value of 0.5 to 2.
As the value of b increases, the effect on P 'increases at a point P closer to the reference line of the target image. p is 0-1
In the value, p = 1 if given longer strong influence of vector V _i, not affected by the length of the if p = 0 vector.

Equation (3) is obtained by assuming that the internal division ratio t of the line segment and the distance from the point P of the target image to the reference line are the same as those of the source image. There is also a method in which the angle of a vector connecting the previous reference line (vector V), point P, and one end of the line segment is equal to that before conversion. In this case, in FIG. 9, cos (θ) = V · V PA / conditions _{(| V | · | V PA} |) = V'· V PA '/ (| V'| · | | V PA') Fulfill. That is, equation (3) can be rewritten as h ′ = | tV ′ | tan (θ) P ′ = A ′ + tV ′ + h′per (V ′) / | V ′ | (6) Also, to simplify the calculation, (5)
The weighting coefficient w _i in the equation can be set to w _i = 1 / (1 + dis) (in equation (5), a = 1, p = 0,
b = 1). When a human face image is warped to another human face image, it does not change so much unlike the case where a human warps another animal, so either equation (3) or equation (6) is used. There is no big difference even if is used. Since the calculation is performed on a pixel-by-pixel basis, it is preferable to use a calculation formula that can be operated a little faster.

The final goal aimed at by the present invention is how to apply the powder color values in the model face image to the user's face image. Therefore, in the present invention, the skin point P 'of the model obtained by the equation (3) or (6) is applied to the skin point P of the user. That is, if the color values C ₁ and r ₁ of the powder at the point P ′ on the skin of the model are obtained,
The color value C _nP of the user's point P after makeup is obtained as follows: C _nP = C _OP (1−r ₁ ) + C ₁ r ₁ (7) Here, C _OP is the color value of the skin of the user at point P. Powder C _{2 on} the face image of the model
Assuming that r ₂ is overcoated, C _OP is replaced with C _nP after calculation of equation (7), r ₁ is replaced with r ₂ , and C ₁ is replaced with C ₂ , and then (7) By recalculating with the formula, a new color value C _nP after makeup is obtained.

The above processing is performed for all skin pixels (eye, eyebrow,
If this is performed on the pixels except for the lip region), the same powder makeup as that of the model can be automatically performed.

[0037]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in which a model image is provided using the Internet. In this case, the following configuration is given as an example of the hardware configuration required for the Internet user. Image input device: Digital camera or video camera Arithmetic processing device: PC Image output device: Display Image printing device: Color printer Other input device: Mouse Also, users (general members) can sign a membership contract with a provider on the Internet. It is necessary that the software for automatic makeup of the present invention be introduced.

FIG. 10 is a conceptual diagram in a case where a makeup image of a model is provided on a homepage through the Internet. The user can obtain and enjoy only the face image of the model that has been made up, but if you want to apply the same make-up as the model to your own face image, first import your own face image to a computer with a digital camera etc. The face area is defined in the form as shown in FIG. Next, a face image of the model is obtained through the Internet, and a user selects a favorite model. Then, the makeup applied to the model is directly applied to the face image of the user.

The make-up applied to the face image of the user is the same as the make-up of the model, but the impression of the make-up differs from that of the model due to the different face outline and color of the skin (skin). There is. In such a case, it is possible to further modify the face image to add a personalized makeup.

[0040]

According to the present invention, it is difficult to know what kind of makeup should be applied. In such a case, the makeup of the model can help. In the present invention, just by selecting a model, the same make-up as the model is applied to the user's face image, so try many make-ups by choosing what you want or make-up of the model that seems to suit you Can be.

In particular, a feature of the present invention is that the makeup applied to the face image of the model is not only transplanted to the face image of the user, but also makes use of the face contour and skin characteristics of the user as they are. Because they are capped, different impressions can be expressed even with the same make-up.
For example, the appearance of powder differs between powder applied to a model with white skin and powder applied to the skin of a tanned user. Therefore, it is possible to actually simulate on the screen and find out which makeup suits the user.

In order to effectively utilize the present invention, a system that can provide many makeups and many models is preferable. This is because the user can select and simulate a model that resembles his own contour or his favorite makeup.
Therefore, if a model face image is provided on the Internet homepage described in the embodiment or a CD in which many model face images are registered as an appendix to a magazine is provided, the range of choices of the user is widened.

A user's face image is taken into a computer by an image data input device, and a face region can be simulated by changing the model any number of times if the face region is defined only once at first. Also, the face image captured in summer and the face image captured in winter have different skin colors, lip conditions, or different facial expressions. In order to make up the face image in the different state, the present invention makes use of the characteristics of the original face image as it is. ), You can check the effect of make-up in each situation. For example, in the method of drawing lipstick on the lips of the present invention, wrinkles and shadows of the lips are expressed even after the lipstick is applied as they are. Is different. In particular, in the case of skin, the effect differs depending on the type of powder due to the difference in skin color between summer and winter. As described above, it is possible to directly confirm on the screen that the automatic makeup of the present invention differs in the riding condition of the makeup depending on the state of the user's face. Therefore, by using the face image of each season in each season, it is possible to find makeup according to the case in a short time by applying makeup of many models to the own face image. There is a maximum effect obtained by using the present invention.

The method of the present invention can be applied to special makeup. For example, you can draw special makeup performed by kabuki actors and actors on your own face image. In such a case, since the makeup is usually thick, no skin such as skin or lips appears, but the contour of the face is expressed as it is.

[Brief description of the drawings]

FIG. 1 is a diagram for describing a face definition point used when determining a position where an eyebrow is drawn in an embodiment of the present invention.

FIG. 2 is a diagram showing drawing coordinates of an eyebrow type (eyebrow template mask image) according to the embodiment of the present invention.

FIG. 3 is a diagram for explaining a lip region, a skin region, and an ambiguous region according to the embodiment of the present invention.

FIG. 4 is a diagram for explaining a method of converting a lip tone to a lipstick tone according to the embodiment of the present invention.

FIG. 5 is a diagram for explaining various membership functions in the embodiment of the present invention.

FIG. 6 is an example showing definition points of a face image according to the embodiment of the present invention.

FIG. 7 is a diagram for explaining a method of obtaining a point P ′ of a source image from a reference line AB and a point P of a target image according to the embodiment of the present invention (internal division ratio of reference line, reference line, and point An example in which the distance from P to the straight line AB is equal).

FIG. 8 is a diagram showing a relationship between points of a source image and points of a target image obtained from a plurality of reference lines in the embodiment of the present invention.

FIG. 9 is a diagram for explaining a method of obtaining a point P ′ of a source image from a reference line of a target image and a certain point P according to the embodiment of the present invention (internal division ratio of reference line, reference line, and line); An example in which the angle of the minute PA is the same for the target and the source).

FIG. 10 is a diagram illustrating a case where a face image of a model is provided on the Internet and a user receives the model image and makes up the face image of the user in the embodiment of the present invention.

Claims (3)

[Claims] 1. A makeup simulation drawing method using computer graphics, comprising: (1) a makeup model face image created by makeup simulation using computer graphics, and a makeup simulation procedure creating the model face image. Is stored in advance,
(2) For the makeup simulation subject, the prepared model face image is selected, and the makeup simulation procedure of the selected model face image is applied to the makeup simulation subject face image, thereby selecting the model face image. A makeup simulation automatic drawing method, wherein a face image with the same makeup as a model makeup face image is created. 2. A makeup simulation drawing apparatus using computer graphics, wherein: (1) a makeup face model image created by makeup simulation using computer graphics; and makeup simulation procedure for creating the makeup face model image. (2) selecting a model face image prepared in advance for a makeup simulation subject, and applying a makeup simulation procedure of the selected model face image to the makeup simulation subject face image Means for creating a face image with the same makeup as the selected model makeup face image. 3. A makeup simulation drawing method using computer graphics, wherein (1) a makeup model face image created by makeup simulation using computer graphics, and a makeup simulation procedure creating the model face image. (2) For the makeup simulation subject, select the model face image prepared in advance, and apply the makeup simulation procedure of the selected model face image to the face image of the makeup simulation subject. A computer-readable recording medium for recording a program for creating a face image with the same makeup as the selected model makeup face image by performing the following steps.