about algorithm in sharpening process

[RenJingyuan]

Recently, I used the sharpening process in AstroImageJ for an HST image of a planetary nebula IRAS 17150-3224 to search for whether there are arcs inside the lobes for tracing the mass-loss history of this object.

I tried unsharp masking function in IDL and I'd like to compare these results. Does anyone like to show me more details about the exact algorithm that is used in the sharpening process in AstroImageJ? Related articles are highly welcomed. Thank you so much for your help.

[karenacollins]

The Sharpen functionality is a feature that is inherited from the underlying ImageJ. The page at the following link describes how the filter is implemented in ImageJ (and thus AIJ).

https://imagej.nih.gov/ij/docs/guide/146-29.html

Karen

On 7/1/2019 11:07 PM, RenJingyuan [via AstroImageJ] wrote:

Recently, I used the sharpening process in AstroImageJ for an HST image of a planetary nebula IRAS 17150-3224 to search for whether there are arcs inside the lobes for tracing the mass-loss history of this object.

I tried unsharp masking function in IDL and I'd like to compare these results. Does anyone like to show me more details about the exact algorithm that is used in the sharpening process in AstroImageJ? Related articles are highly welcomed. Thank you so much for your help.

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[RenJingyuan]

Thank you so much for your reply, Dr. Collins.