This is a luminance image and has been processed to flatten the background using PixInsight’s DynamicBackgroundExtractor and has been denoised using the EZ Denoise script for PixInsight.ĭownload the sample observation of M16 here Using EZ Decon I have made a sample observation of M16 available for download. If StarNet does not work on your system, you won’t be able to use the EZ Decon script.Īlternately, if you have StarXTerminator, use it to create the star mask and specify that image when using EZ Decon. Check your computer by running the StarNet process with one of your own images to find out if it works on your system. Your computer must be capable of running StarNet and typically computers made after about 2011 are compatible. Requirements of EZ DeconĮZ Decon makes use of the StarNet process. As a result, there’s a section in the EZ Decon settings dedicated to creating and editing the star mask. EZ Decon gets around the problem of ringing around stars by removing them from the image, sharpening the image, and then returning the stars to the image.
What EZ Decon DoesĮZ Decon works by creating a star mask from your image, it then creates a mask for where sharpening will occur, and it creates the critical PSF image by only measuring the correct types of stars in your image. The result is very subtle but it is most noticeable in the smaller structure to the right of the large pillar – move your mouse over the image, and away from it repeatedly to see the sharpening effect.Īs I mentioned earlier, deconvolution often produces a subtle result so whether you use it depends on how you plan to present your image (whether your users will be interested in those details).
Hover your mouse over the image to see the result after EZ Decon. Here’s a zoomed image of M16 – the Eagle Nebula it is a luminance image so it is a monochrome image: When working with the Deconvolution process, you’ll run into problems with ringing around the stars in your image and the problem is so prevalent that there are settings within the Deconvolution process dedicated to just managing ringing artifacts.įortunately, there’s a much easier method to deconvolve your image: the EZ Decon script that’s part of the EZ Processing Suite. And after all that work, you’ll often find that the result is very subtle – perhaps too subtle to notice, depending on how you intend to present your image. Once you have done all that, you use the Deconvolution process to figure out what settings work well for your image. The process of deconvolution is very involved: you have to create a PSF image by measuring certain stars in your image (the PSF image critical because it helps the deconvolution algorithm restore the details in your image), you need to create a star mask to protect the brightest stars, you need an object mask to indicate where you want sharpening to occur. Deconvolution is a restorative process that attempts to sharpen the fine detail lost through atmospheric disturbances during your observation.
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