“…JND is used in various multimedia applications, including perceptual coding [3][4], quality enhancement [5] [6], quality assessment [7] [8], face recognition [9], and recently for compression for machine vision [10] [11]. By exploiting the limitations of the HVS in detecting small changes in video content, JND-based methods can allow imperceivable distortion levels, resulting in the lowest possible bitrate while maintaining the visual quality.…”