Why does iphone send sharks?

First of all, your iPhone should support the iMessage function, because this special effect is a subsidiary effect of iMessage. Open Settings-Information to see if the iMessage function is turned on. If not, click Open.

After opening, click "Messages" on iPhone, and click the camera icon at the lower left of the message sending interface, you can set a shark plus sound message with a face with a black background.

After entering the camera, continue to click on the virtual portrait expression icon in the lower left corner and select the effect you want to use.

Supplement: In 20 19, Apple launched the patent service "Technology of Generating Headshots from Image Data", which can generate digital headshots from photos. In short, the patent determines the closest facial feature combination by analyzing the user's facial photos, thus generating a digital avatar with similarity, and the user does not need to make any choices. This processing method measures the spatial facial attributes of objects, classifies human expressions at the same time, and determines which template is the closest match from the selection of avatar templates. Based on expression analysis, deformed avatar template is used to assist matching. Then, before the processing is completed, this technology will identify other attributes of the object, further deform the selected avatar template, and finally automatically generate a digital avatar for users to use.