Image Watermarking TRIZ Cases
- Metameric Watermark Printing via Spectral Reflectance Tuning
Standard printing materials form a geometric metameric pair with the substrate, creating a cost-effective security watermark that vanishes under copying.
- Frequency Domain Image Watermarking for Robust Copyright Protection
Transforming spatial marks to the frequency domain enables robust copyright protection that resists compression and smearing while maintaining invisibility.
- Forensic Steganography Watermarking Collusion Attack Prevention
Modifying unmarked frame encoding parameters prevents collusion attacks by obscuring variant identification.
- Light-field messaging robust to camera-display transfer effects
A light-field messaging system encodes hidden messages in display images using trained embedding and recovery models.
- Invisible Watermarking via Quantized Coefficient Modification
A modification function alters quantized coefficients to embed imperceptible watermark bits directly into video frames.
- Template-Based Watermarking for DIBR 3D Image Copyright Protection
A template-based watermarking method embeds data into frequency domains of 3D image blocks to protect intellectual property rights.
- Forgery-Proof Image Data Encoding via Subtle Color Variations
Encoding information pixels with imperceptible color variations enables smartphone authentication of printed items without special coatings or equipment.
- Digital Watermarking via Local Binary Pattern Synthesis
A watermarking method embeds bits by modifying neighbor pixel values relative to a central pixel within local blocks.
- Machine-learned Video Watermarking via Frequency Domain Embedding
A machine-learned watermark encoding model processes video frames and message vectors to generate imperceptible spatial-temporal encoding data.