摘要：
There are provided a cosmetic sheet that obscures a discolored portion of the skin and a method for producing the cosmetic sheet. There are also provided an image-processing apparatus and an image-processing method for producing the sheet. The cosmetic sheet is put on a discolored portion of the skin. The cosmetic sheet includes a thin film, one surface of which is to be put on the skin, a complementary color layer placed on the other surface of the thin film and having a color tone complementary to the color of the discolored portion, a light scattering layer placed on the complementary color layer and containing a reflective material, and a coloring layer placed on the light scattering layer and containing a coloring material.
技术功效语段：
[0014]In a typical cosmetic sheet, even a skin-colored coloring layer placed on a layer with a relatively deep color tone, such as a complementary color layer, cannot achieve the desired color of the cosmetic sheet because the color of such a complementary color layer can be seen through the skin-colored coloring layer. Thus, it has been difficult to form such a layer. In contrast, a cosmetic sheet according to the present disclosure includes a light scattering layer on a complementary color layer. Thus, it is difficult to visually recognize not only the color of the discolored region but also the color of the complementary color layer.
权利要求：
1. A cosmetic sheet to be put on a discolored portion of skin, comprising: a thin film, one surface of which is to be put on the skin; a complementary color layer placed on the other surface of the thin film and having a color tone complementary to the color of the discolored portion; a light scattering layer placed on the complementary color layer and containing a reflective material; and a coloring layer placed on the light scattering layer and containing a coloring material.
2. The cosmetic sheet according to Claim 1, wherein the complementary color layer has a basic color of blue and has a maximum at a wavelength in the range of 380 to 570 nm in its spectral reflectance curve.
3. The cosmetic sheet according to Claim 1 or 2, wherein the light scattering layer has a thickness in the range of 0.1 to 10 when the complementary color layer has a thickness of 1.
4. The cosmetic sheet according to Claim 1, wherein the complementary color layer also has skin color.
5. The cosmetic sheet according to Claim 4, wherein the complementary color layer has a color tone of peach orange, purple, green, or pink.
6. The cosmetic sheet according to Claim 1, wherein the complementary color layer has different shades of color in a thickness direction.
7. A method for producing a cosmetic sheet to be put on a discolored portion of skin, the method comprising: a step of applying a complementary color layer ink containing a coloring material complementary to the color of the discolored portion to one surface of a thin film, the other surface of which is to be put on the skin, and drying the complementary color layer ink to form a complementary color layer; a step of applying a light scattering layer ink containing a reflective material to the complementary color layer and drying the light scattering layer ink to form a light scattering layer; and a step of applying a coloring layer ink containing a coloring material to the light scattering layer and drying the coloring layer ink to form a coloring layer.
8. The method for producing a cosmetic sheet according to Claim 7, wherein each of the complementary color layer ink, the light scattering layer ink, and the coloring layer ink further contains a higher alcohol having three or more carbon atoms, purified water, and a binder.
9. An image-processing apparatus for producing the cosmetic sheet according to any one of Claims 1 to 6, the image-processing apparatus comprising: an image analyzer for determining a discolored region corresponding to the discolored portion from an image of the discolored portion; and a sheet information providing unit for determining the color of the complementary color layer at least on the basis of a* and b* values of an L*a*b* color space in the discolored region and providing sheet information including information about the determined color of the complementary color layer.
10. The image-processing apparatus according to Claim 9, wherein the sheet information providing unit determines the thickness of the light scattering layer on the basis of an L* value, the a* value, and the b* value of the L*a*b* color space in the discolored region and/or the color of the complementary color layer and includes information about the determined thickness of the light scattering layer in the sheet information.
11. The image-processing apparatus according to Claim 9 or 10, wherein the sheet information providing unit determines the color of the coloring layer on the basis of an L* value, the a* value, and the b* value of the L*a*b* color space around the discolored region and includes information about the determined color of the coloring layer in the sheet information.
12. The image-processing apparatus according to Claim 11, further comprising: a finish checker for displaying a simulated image in which a cosmetic sheet formed according to the sheet information is placed on the discolored portion and receiving adjustment of the color of the coloring layer included in the sheet information.
13. An image-processing apparatus for producing the cosmetic sheet according to any one of Claims 1 to 6, the image-processing apparatus comprising: an image analyzer for determining a discolored region corresponding to the discolored portion from an image of the discolored portion; a database for storing Lab color information about the periphery of the discolored region in a mesh space in which an L* axis, an a* value, and a b* value of an L*a*b* color space are divided at specified intervals, storing a candidate color to be applied to the complementary color layer, the light scattering layer, and the coloring layer in the mesh space divided at the specified intervals, and storing information about color viewed from the coloring layer when the complementary color layer, the light scattering layer, and the coloring layer are laminated in this order and information about a combination of the complementary color layer, the light scattering layer, and the coloring layer; and a sheet information providing unit for referring to coordinates including a color combination of the complementary color layer determined from the Lab color information of the discolored region from the database, comparing the coordinates with coordinates on a mesh of Lab color information about the periphery of the discolored region, determining a combination of the complementary color layer, the light scattering layer, and the coloring layer from the nearest coordinates, and providing sheet information including the determined combination of the complementary color layer, the light scattering layer, and the coloring layer.
14. An image-processing method regarding production of the cosmetic sheet according to any one of Claims 1 to 6, the image-processing method comprising: determining a discolored region corresponding to the discolored portion from an image of the discolored portion; and determining the color of the complementary color layer on the basis of a* and b* values of an L*a*b* color space in the determined discolored region and providing sheet information including information about the determined color of the complementary color layer.