The purpose of this software is to enhance the legibility of papyri for text edition and publication. It consists of an image processing tool and an image viewer.
— Fully automatic image enhancement, which is especially useful for processing image collections.
— Multiple enhancement methods, for covering a variety of document and reproduction qualities, tasks, and subjective preferences.
— Complementary to other software, such as DStretch and Photoshop.
app: Matlab (R2020b) app
code: Matlab (R2020b) source code
help: documentation (see also hierax.ch)
images: smaple papyri images
article: technical background (Vlad Atanasiu, Isabelle Marthot-Santaniello (2022), “Legibility Enhancement of Papyri Using Color Processing and Visual Illusions: A Case Study in Critical Vision”, International Journal on Document Analysis and Recognition (IJDAR), 25: 129–160, https://doi.org/10.1007/s10032-021-00386-0)
Vlad Atanasiu (2023). Hierax (https://github.com/vladatanasiu/hierax/releases/tag/2021.03.30), GitHub. Retrieved .
MATLAB Release Compatibility
Platform CompatibilityWindows macOS Linux
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See release notes for this release on GitHub: https://github.com/vladatanasiu/hierax/releases/tag/2021.03.30