Backend Watermarking¶
Comprehensive watermarking implementation guide.
Overview¶
Certana implements three complementary watermarking tracks:
- Track A: Spatial domain (visible/robust)
- Track B: Frequency domain (DCT-based)
- Track C: Neural watermarking (invisible)
Track A: Spatial Domain¶
LSB-based watermarking in spatial domain. Robust to compression.
Track B: Frequency Domain¶
DCT coefficient modification for frequency-domain watermarking.
Track C: Neural Watermarking¶
Imperceptible watermarks using neural network approaches.
Implementation Details¶
See Services Documentation for code examples.
Robustness Testing¶
All watermarks tested against: - JPEG compression - Scaling and cropping - Rotation - Noise addition - Histogram equalization