Server and operating method thereof

A server comprising:

• a communicator for receiving a first image from a subject terminal from among a plurality of terminals;
• and
• a controller for identifying a type of a first content included in the first image, and for selecting two or more different image filters using a recommended algorithm regarding an image filter to be applied to the first image,
• wherein the controller selects a first image filter predicted to have a highest probability to be selected by a user of the subject terminal and a second image filter predicted to have a second highest probability to be selected by the user of the subject terminal using the recommended algorithm, and
• the communicator transmits information on the first image filter and information on the second image filter to the subject terminal,
• wherein the controller obtains:
• image filter history information, on a type of an image filter that has been previously selected, by the subject terminal, to be applied to a second image including the first content and
• image filter history information, on a type of an image filter that has been previously selected, by each of the plurality of terminals except the subject terminal, to be applied to a third image including the first content,
• wherein the controller obtains image filter history information of a first terminal, the image filter history information of the first terminal being predicted to be preferred by the user of the subject terminal, based on a result of comparing the image filter history information of the subject terminal and the image filter history information of the plurality of terminals, respectively;
• and selects two or more different image filters based on a plurality of image filters included in the image filter history information of the first terminal.