# Quaternion Scalar and Vector Norm Decomposition: Quaternion PCA for Color Face Recognition

> Research article (IEEE Transactions on Image Processing, 2022) · cited 16× · AI/ML

**Wikidata**: [openalex:W4313449746](https://www.wikidata.org/wiki/openalex:W4313449746)  
**Source**: https://4ort.xyz/entity/quaternion-scalar-and-vector-norm-decomposition-quaternion-pca-for-color-face-recognition