Nail printing apparatus and control method

1. A nail printing apparatus comprising:

a print head that prints on a nail of one of a finger of a hand and a toe of a foot; and

a processor,

wherein the processor performs:

detecting a nail area from a nail image captured of the nail;

dividing the nail area into a first area on a nail root side of the nail and a second area on a nail free edge side of the nail; and

storing information of the first area in a memory,

wherein, when the information of the first area of the nail is already stored in the memory, the processor reads out the information of the first area stored in the memory without detecting the first area.

2. The nail printing apparatus according to claim 1 ,

wherein the processor stores the information of the first area in the memory in association with identification information of the one of the finger and the toe to which the nail belongs, and

wherein, when the information of the first area of the nail is already stored in the memory, the processor reads out, from the memory, the information of the first area stored in the memory that is associated with the identification information of the one of the finger and the toe to which the nail belongs.

3. The nail printing apparatus according to claim 1 ,

wherein the processor stores the information of the first area in the memory after correction of the information of the first area, and reads out the information of the first area while detecting the nail area from the nail image in a state in which the information of the first area after the correction is stored in the memory.

4. The nail printing apparatus according to claim 3 ,

wherein the processor, when detecting the nail area from the nail image in a state in which the information of the first area after the correction is stored in the memory, detects only the second area based on the nail image.

5. The nail printing apparatus according to claim 3 , further comprising:

a display device;

wherein the processor displays the nail area on the display device based on information of the nail area stored in the memory, and allows correction of the nail area displayed on the display device to be performed.

6. The nail printing apparatus according to claim 1 ,

wherein in the dividing, the processor sets a boundary line along a width direction of the nail in the nail area, and defines, in the nail area, the nail root side of the nail from the boundary line as the first area, and the nail free edge side of the nail from the boundary line as the second area.

7. The nail printing apparatus according to claim 1 ,

wherein, when a non-print area on which the printing by the print head is not to be performed is set in the nail area, the processor excludes the non-print area from the nail area divided into the first area and the second area.

8. A control method of a nail printing apparatus including a print head that performs printing on a nail of a finger of a hand and a toe of a foot, the control method comprising:

detecting a nail area from a nail image captured of the nail;

dividing the nail area into a first area on a nail root side of the nail and a second area on a nail free edge side of the nail; and

storing information of the first area in a memory,

wherein, when the information of the first area of the nail is already stored in the memory, the information of the first area stored in the memory is read out from the memory without detecting the first area.

9. The control method according to claim 8 ,

wherein the storing includes, when corrections are applied to the first area, storing information of the first area after the correction in the memory, and

wherein the reading out includes, when detecting the nail area from the nail image in a state in which the information of the first area after the correction is stored in the memory, reading the information of the first area from the memory to use the information of the first area.

10. The control method according to claim 8 ,

further comprising:

storing the information of the first area in the memory after correction of the information of the first area; and

reading out the information of the first area while detecting the nail area from the nail image in a state in which the information of the first area after the correction is stored in the memory.

11. The control method according to claim 10 , further comprising, when detecting the nail area from the nail image in a state in which the information of the first area after the correction is stored in the memory, detecting only the second area based on the nail image.

12. The control method according to claim 10 , further comprising

displaying the nail area on a display device based on information of the nail area stored in the memory, and

allowing correction of the nail area displayed on the display device to be performed.

13. The control method according to claim 8 ,

further comprising:

setting a boundary line along a width direction of the nail in the nail area; and

defining, in the nail area, the nail root side of the nail from the boundary line as the first area, and the nail free edge side of the nail from the boundary line as the second area.

14. The control method according to claim 8 ,

further comprising, when a non-print area on which the printing by the print head is not to be performed is set in the nail area, dividing an area excluding the non-print area from the nail area into the first area and the second area.