A METHOD FOR FACE ENCRYPTION IN IMAGES

Abstract

The invention relates to a method (100) that enables the encryption of only the face regions (31) for privacy purposes after the face recognition process (3) in images. The system (1) comprises a face detection module (21), a synthesis module (22), an identity distance verification unit (23), an encryption module (24), a metadata embedding module (25), a retrieval module (26), and a key store (4). The original pixel values ​​of the face region (31) are encrypted and stored in the metadata field (33), and the region is filled with a modified face region (32) synthesized by a generative model. Thus, the protected image retains its natural appearance, and the original pixel values ​​can be retrieved one-to-one with the authorized key. Since the protected regions cannot be distinguished by a face detection process due to the realistic appearance of the modified face region (32), a protection mark (331) is also written to the metadata field (33). Figure 1