How Image Watermarking Works - Computerphile
Image watermarks are a way to embed information into a picture, Dr Mike Pound takes us through Adobe's Trust Mark to explain the idea & covers some of the pros and cons.00:00 - Introduction: Watermarking Images vs Text
00:28 - Steganography vs Watermarking & Metadata Limitations
01:39 - Why Least Significant Bits (LSB) Fail
04:04 - Deep Learning for Watermarks (Encoder-Decoder)
05:37 - How Do We Detect & Read Embedded Codes?
07:18 - Robust Watermarking: Training with Augmentations
09:21 - Handling Any Image Size (Trustmark & 256px Base)
11:36 - Live Demo: Watermarking an Image in Python
13:40 - Stress Testing: Compression & Resizing
15:48 - Extreme Edits: Cropping & Color Shifts
17:23 - Adversarial Attacks: Copying Watermarks Between Images
19:39 - AI Tracking, Provenance, & Digital Signatures
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This video was filmed and edited by Sean Riley.
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