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PRNU fingerprint

Photo Response Non-Uniformity: the unique pattern of pixel-level sensitivity variations in a camera sensor, which acts as a device fingerprint. Used to link an image to a specific camera and to detect regions of an image captured by a different sensor.

Explained in

PDF Metadata Forensics and Document Image Authentication

Related terms

ByteRange Content-aware fill Copy-move detection Cross-reference table (xref)Error Level Analysis (ELA)EXIF (Exchangeable Image File Format)Incremental update JPEG ghost analysis XMP metadata

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