Hard Design: Social Media Platform (Instagram)

What is a perceptual hash (pHash) used for in image upload processing?

— Tests your understanding of this concept.

Answer Options

A To encrypt the image for storage

B To detect near-duplicate or visually similar images (same image re-uploaded or slightly modified)

C To compress the image for CDN delivery

D To categorize image by color palette

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This question is from the Design: Social Media Platform (Instagram) topic (System Design Cases).

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