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perceptual hashing

calculation of hashes for images that have similar values for similar inputs use of an algorithm that attempts to fingerprint multimedia for identification and comparison. Perceptual hashes of two similar multimedia should be similar.
Class type of: hashing Q19598510
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Key Facts

  • Subclass of: hashing[1]
  • Has use: copyright infringement via online photo[2], video copy detection[3]
  • Uses: Hamming distance[4], image hash function[5], fingerprint[6]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). perceptual hashing. Retrieved October 30, 2026, from https://4ort.xyz/entity/perceptual-hashing
MLA “perceptual hashing.” 4ort.xyz Knowledge Graph, 4ort.xyz, 30 Oct. 2026, https://4ort.xyz/entity/perceptual-hashing.
BibTeX @misc{4ortxyz_perceptual-hashing_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{perceptual hashing}}, year = {2026}, url = {https://4ort.xyz/entity/perceptual-hashing}, note = {Accessed: 2026-10-30}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): perceptual hashing — https://4ort.xyz/entity/perceptual-hashing (retrieved 2026-10-30)

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