Guided filtering for solar image/video processing

Author:

Лун Сюй1,Long Xu2,Йихуа Йан3,Yihua Yan4,Цзюнь Чэн1,Jun Cheng2

Affiliation:

1. Главная лаборатория исследования солнечной активности, Национальные астрономические обсерватории, Китайская академия наук

2. Key Laboratory of Solar Activity, National Astronomical Observatories

3. Главная лаборатория исследования солнечной активности, Национальные астрономические обсерватории, Китайская академия наук

4. Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences

Abstract

A new image enhancement algorithm employing guided filtering is proposed in this work for enhancement of solar images and videos, so that users can easily figure out important fine structures imbedded in the recorded images/movies for solar observation. The proposed algorithm can efficiently remove image noises, including Gaussian and impulse noises. Meanwhile, it can further highlight fibrous structures on/beyond the solar disk. These fibrous structures can clearly demonstrate the progress of solar flare, prominence coronal mass emission, magnetic field, and so on. The experimental results prove that the proposed algorithm gives significant enhancement of visual quality of solar images beyond original input and several classical image en-hancement algorithms, thus facilitating easier determi-nation of interesting solar burst activities from recorded images/movies.

Publisher

Infra-M Academic Publishing House

Subject

Space and Planetary Science,Atmospheric Science,Geophysics

Reference21 articles.

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