Jinghui Chu, Ye Tian, Yuting Su. Screen-Camera Communication Steganography Based on Frequency Constraint[J]. Laser & Optoelectronics Progress, 2018, 55(5): 051003
- Laser & Optoelectronics Progress
- Vol. 55, Issue 5, 051003 (2018)
Fig. 1. Block diagram of proposed algorithm
Fig. 2. Visual illustration of frequency constraints
Fig. 3. Image of image detection
Fig. 4. Extraction of training feature. (a) Training block; (b) training feature; (c) positive and negative samples
Fig. 5. Corrective mechanism of time domain
Fig. 6. Test sequence samples
Fig. 7. Experiment setting
Fig. 8. Comparative experiment
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Table 1. Accuracy of experimental results%
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