Russ Croman’s StarXTerminator Program and the JWST Images

I recently downloaded the free evaluation copy of Russ Croman’s StarXTerminator program – which basically does what it says on the tin. I also saw a recent James Webb Space Telescope (JWST) on APOD and was once again flabbergasted at the absolutely dreadful EIGHT diffraction spikes around bright stars. So I thought I would try an experiment and see what StarXTerminator would do on a JWST image. I was expecting StarXTerminator to do a good job on removing stars but I was expecting it to leave a lot of the diffraction spikes behind. In the images above you can actually see what happened. StarXTerminator did an absolutely superb job on removing both stars AND diffraction spikes. A quick run of “Despeckle” in Photoshop really cleaned up the background and the “Spot Healing Brush” tool cleared up a couple of stragglers. I really think Russ should be in serious discussion with NASA on how to clean up their JWST images.

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