Humidification device and humidification method

1. A humidification device, comprising:

a button, configured to adjust a spraying amount for humidifying an air from a humidification module in response to a user operation when using a first correspondence to control the spraying amount; wherein the first correspondence is a default correspondence between a moisture content of a user skin and the spraying amount;

an update module, configured to update the spraying amount in the first correspondence to the spraying amount determined in response to the user operation; wherein the spraying amount determined in response to the user operation corresponds to an initial moisture content of the user skin, which forms a second correspondence; the initial moisture content of the user skin is determined by a processing module based on an initial image of the user skin acquired by an image acquisition module;

the image acquisition module, configured to acquire an image of the user skin periodically;

the processing module, configured to determine a current moisture content of the user skin based on a latest image and determine a spraying amount for humidifying the air based on the current moisture content of the user skin in a period; the current moisture content of the user skin and the spraying amount form a third correspondence; and

a humidification module, configured to humidify the air based on the spraying amount;

the processing module comprises:

a storage unit, configured to store a correspondence between different moisture contents of the user skin and spraying amounts, the correspondence comprises the first correspondence, the second correspondence and the third correspondence; and

a processing unit, configured to determine the spraying amount for humidifying the air from the humidification module based on the determined moisture content of the user skin and the correspondence;

the button, further configured to adjust the spraying amount for humidifying the air from the humidification module in response to a user operation;

the update module, further configured to update the spraying amount corresponding to the current moisture content of the user skin in the third correspondence to the spraying amount determined in response to the user operation, which forms a fourth correspondence;

wherein the humidification device further comprises:

a self-adaptive adjustment module, configured to increase the spraying amount in the fourth correspondence in the case that the current moisture content of the user skin redetermined by the processing module in a next period is smaller than a threshold.

2. The humidification device according to claim 1 , wherein the image acquisition module comprises:

an image capturing unit, configure to capture at least one candidate image of the user skin; and

a selection unit, configured to select, based on definition of the at least one candidate, one candidate image as an image for determining the moisture content of the user skin.

3. The humidification device according to claim 1 , wherein the processing module comprises:

an identification unit, configured to identify a specific region of the image of the user skin corresponding to a user face; and

an image analysis unit, configured to determine the moisture content of the user skin based on an image parameter of the specific region.

4. The humidification device according to claim 3 , wherein the image parameter comprises at least one of color brightness and a smoothness degree.

5. The humidification device according to claim 1 , further comprising a display module configured to display the moisture content of the user skin.

6. A humidification method, comprising:

adjusting, by a button, a spraying amount for humidifying an air from a humidification module in response to a user operation when using a first correspondence to control the spraying amount; wherein the first correspondence is a default correspondence between a moisture content of a user skin and the spraying amount;

updating, by an update module, the spraying amount in the first correspondence to the spraying amount determined in response to the user operation; wherein the spraying amount determined in response to the user operation corresponds to an initial moisture content of the user skin, which forms a second correspondence; the initial moisture content of the user skin is determined by a processing module based on an initial image of the user skin acquired by an image acquisition module;

acquiring, by the image acquisition module, an image of the user skin periodically;

determining, by the processing module, a current moisture content of the user skin based on a latest image and determining, by the processing module, based on the current moisture content of the user skin, a spraying amount for humidifying the air in a period; the current moisture content of the user skin and the spraying amount form a third correspondence; wherein the processing module comprises: a storage unit, configured to store a correspondence between different moisture contents of the user skin and spraying amounts, the correspondence comprises the first correspondence, the second correspondence and the third correspondence; and a processing unit, configured to determine the spraying amount for humidifying the air from the humidification module based on the determined moisture content of the user skin and the correspondence; and

humidifying, by a humidification module, the air based on the spraying amount;

adjusting, by the button, the spraying amount for humidifying the air from the humidification module in response to a user operation;

updating, by the update module, the spraying amount corresponding to the current moisture content of the user skin in the third correspondence to the spraying amount determined in response to the user operation, which forms a fourth correspondence;

increasing, by a self-adaptive adjustment module, the spraying amount in the fourth correspondence in the case that the current moisture content of the user skin redetermined by the processing module in a next period is smaller than a threshold.

7. The humidification method according to claim 6 , wherein

the determining the moisture content of the user skin based on the image comprises:

identifying a specific region of the image of the user skin corresponding to a user face; and

determining the moisture content of the user skin based on an image parameter of the specific region.

8. The humidification method according to claim 7 , wherein the image parameter comprises at least one of color brightness and a smoothness degree.

9. The humidification method according to claim 8 , wherein

the determining the moisture content of the user skin comprises quantizing the color brightness of the specific region to obtain the moisture content of the user skin, in the case that the image parameter consists of the color brightness; or

the determining the moisture content of the user skin comprises quantizing the smoothness degree of the specific region to obtain the moisture content of the user skin, in the case that the image parameter consists of the smoothness degree; or

the determining the moisture content of the user skin comprises normalizing the color brightness and the smoothness degree of the specific region, calculating a weighted sum of the normalized color brightness and smoothness degree, and quantizing the weighted sum to obtain the moisture content of the user skin, in the case that the image parameter consists of the color brightness and the smoothness degree.

10. The humidification method according to claim 9 , further comprising:

redetermining the moisture content of the user skin after humidifying the air for a while;

increasing the spraying amount for humidifying the air in the case that the moisture content of the user skin is within a first value range;

decreasing the spraying amount for humidifying the air in the case that the moisture content of the user skin is within a second value range; and

stopping humidifying the air in the case that the moisture content of the user skin is within a third value range;

wherein the first value range is smaller than the second value range, and the second value range is smaller than the third value range.

11. The humidification device according to claim 1 , wherein the image acquisition module is a camera, the processing module is a processor, and the humidification device further comprises:

a housing;

a display, arranged on the housing and configured to display the current moisture content of the user skin; and

a sprayer arranged within the housing, wherein a spray nozzle of the sprayer is arranged on the housing.