Astrophysics Source Code Library

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ASCL Code Record

[ascl:2103.006] ggm: Gaussian gradient magnitude filtering of astronomical images

Ggm contains useful utilities for Gaussian gradient filtering of astronomical FITS images. It applies the Gaussian gradient magnitude filter to an input fits image, using a particular scale, sigma, in pixels. ggm cosmetically hides point sources in fits images by filling point sources with random values from the surrounding pixel region. It also provides an interactive tool to combine FITS images filtered on different scales.

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