[KongchangAI]
Expired50% confidenceFactExact time

The core idea of perceptual hashing is to scale video frames to a fixed size (e.g., 8×8 pixels), convert them to grayscale, compute DCT (Discrete Cosine Transform) coefficients, and generate a 64-bit binary fingerprint.

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)

Sources

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