Method for securing image and electronic device performing same

A method of releasing security of an image including biometric data, the method comprising:

• searching for a region including the biometric data in a second image;
• detecting a biometric image corresponding to the biometric data in the searched region of the second image;
• decoding the detected biometric image;
• and
• generating a first image using a watermark configured to block access to the biometric data, the decoded biometric image, and the second image.

An electronic device configured to set security on an image, the electronic device comprising:

• a communication interface comprising communication circuitry;
• a memory storing one or more instructions;
• and
• at least one processor configured to execute the one or more instructions to control the electronic device to:
• search for a region including the biometric data in a first image;
• detect a biometric image corresponding to the biometric data in the searched region of the first image;
• encode the detected biometric image;
• and
• generate a second image by synthesizing a watermark configured to block access to the biometric data, the first image, and the encoded biometric image.