# Optical Double Image Hiding in the Fractional Hartley Transform Using Structured Phase Filter and Arnold Transform

> Research article (3D Research, 2018) · cited 23× · AI/ML

**Wikidata**: [openalex:W2804933052](https://www.wikidata.org/wiki/openalex:W2804933052)  
**Source**: https://4ort.xyz/entity/optical-double-image-hiding-in-the-fractional-hartley-transform-using-structured-phase-filter-and-arnold-transform