# TPE2: Three-Pixel Exact Thumbnail-Preserving Image Encryption

> Research article (Signal Processing, 2021) · cited 87× · AI/ML

**Wikidata**: [openalex:W3126792067](https://www.wikidata.org/wiki/openalex:W3126792067)  
**Source**: https://4ort.xyz/entity/tpe2-three-pixel-exact-thumbnail-preserving-image-encryption