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Thread: Photoshop vs. PixInsight

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    Default Re: Photoshop vs. PixInsight



    The original question is about Photoshop vs. PI. I'll tell you why I like PI better. Photoshop is NOT an astronomy program--it's designed for general photographic manipulation. The astronomy community finds it a very useful tool, but it's not made for astronomy. PI is designed exactly and only for astronomy by astronomers for astronomers. The philosophy of PI is that everything is scientific, and you treat the data scientifically. Any artistic license is based upon mathematical rigor and if you were able to get down into the meat of the program is absolutely reproducible. In addition PI has the extremely powerful ability, that Photoshop lacks, to work on images in the linear space, so by the time you delinearize you have already color balanced, deconvolved, noise reduced, and gradient eliminated.

    Lastly, as much as I've tried, I was never able to grok the whole concept of working in photoshop layers. I did try--I watched tutorials, read the Ireland book, and read other books, but I just couldn't get it. I was also a beginner so that had a lot to do with it as well.

    Now PI is not without its inscrutibilitness (is that a word?). There is no formal manual and you're stuck going to outside sources to learn how to use the program. I'm a fan of ip4ap and I also like Adam Block's tutorial series, but they cost and people often object to paying more after they've already sunk money into it. It is what it is--I will say, though, that it is not sunk cost fallacy. Paying for the tutorials is worth it. Or, if you don't want to pay for online videos, Inside Pixinsight Volume 2 has been published and is available on e-book (the printing has been delayed but should be out within a month). Personally, I do all of them--ip4ap, Block, and the book as I'm always trying to learn and teach others. I would avoid random youtube videos as I've seen some very bad ones out there. We didn't get into this hobby because it's inexpensive. PI has a learning curve, for sure, but so does Photoshop. Neither program is easy--they're just challenging in different ways.

    There is a new kid on the block, Astro Pixel Processor. I don't know anything about it except that I've seen good results with it. I'm not interested in learning a new program, however so I'll just stick with PI.
    Mag95On and Clete like this.
    Stuart Forman

    Telescope Engineering Company 140mm f7 apochromat with TEC FF on Astro-Physics Mach 1 with RAPAS. Also with A-P 27tvph focal reducer. Camera QSI 683ws-8 Astrodon Gen 2 LRGBHaO3S2 (5nm), Starlight Instruments Focus Boss focuser, Software: SGP, Pixinsight, Guiding with A-P Guiding bracket, 10X60 Vario scope, Lodestar, PHD. Rob Miller TRI36L tripod on JMI Wheely Bars. Twitter @s24man

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