First, the beauty function

1. Choose beauty applications: On smart phones, there are many applications dedicated to video beauty, such as beauty cameras and lightweight cameras. These applications usually provide various beauty filters and adjustment options. Open Beauty: After opening the selected application, select the video mode, and then select the video to edit from the album. Next, find the beauty function in the editing interface and click Open.

2. Adjust parameters: You can adjust parameters such as peeling, skin color and whitening as needed. The adjustment of these parameters may have different effects, and it needs to be carefully adjusted to achieve the best effect. Save Video: After adjusting the parameters, click the Save button to save the beautified video to the photo album.

Second, the filtering function.

1. Select filter application: Similar to beauty function, there are many applications that provide filter function. Import video: After opening the application, select the "Import" button and select the video to edit from the album.

2. Select Filter: In the editing interface, you can see many different filter options. Select the appropriate filter and fine-tune it as needed to achieve the best effect. Save Video: After adjusting the filter, click the Save button to save the video processed by the filter to the photo album.

Beauty camera has the following functions:

1. Face detection: The beauty camera will detect the face first and realize it by analyzing the face features in the image. It uses Haar cascade or deep learning model to locate the face in the image and determine its position and size.

2. Face feature extraction: Once the face is detected, the beauty camera will extract the features of the face, including the shape, skin color and texture of the face. These features are used for subsequent cosmetic treatment.

3. Beauty processing: The beauty camera uses a series of image processing algorithms to carry out beauty processing on the face. These treatments may include exfoliation, whitening, face-lifting and big eyes. These effects are usually achieved by adjusting the pixel values of the image. For example, exfoliation can reduce skin defects by blurring the skin area of the face, and whitening can brighten the whole face by adjusting the brightness of skin color.

4. Image synthesis: After beauty processing, the beauty camera synthesizes the processed face with other parts of the original image. This requires seamless integration of the processed face with other parts of the original image to produce a natural-looking effect.

5. Save and share: Finally, the beauty camera saves the processed image to the user's device and allows the user to share it to social media or other platforms.