“…A novel image steganography algorithm based on DL (deep learning) is proposed here, to generate new carrier images and embed information by the steganographic capacity. Finally, EC (edge computing) technology is used for MO (multi-objective optimization) based on GA (genetic algorithm) of the image steganography algorithm (Taleb et al 2017 ), to realize the safe transmission of information, the culture shaping and value realization of digital media art under safe development (Ariaji et al 2020 ; Zhu 2020 ). In the face of the problem that teachers and students cannot return to school during the epidemic period of COVID-19, under the organization of the Academic Affairs Office of the school, the online teaching plan based on Teaching Applysquare and video live broadcast was used in the teaching of illustration design curriculum of the digital media art specialty.…”