Background Extraction: A Step-by-Step Graxpert Tutorial

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  • Опубликовано: 25 ноя 2024

Комментарии • 48

  • @DeepSpaceAstro
    @DeepSpaceAstro  Год назад

    Please consider supporting this channel on Buy Me a Coffee!: www.buymeacoffee.com/deepspaceastro

  • @thesaus1975
    @thesaus1975 9 месяцев назад +3

    I really appreciate the time and effort you put into these videos. As someone who is just starting out with a Seestar S50, these are lifesaver type videos that help me get the most out of my work. Thank you.

  • @romaindechamps457
    @romaindechamps457 Год назад +2

    My understanding is that the people who developed Graxpert are the ones that integrated it into Siril, no winder it looks so much similar with just some extra options (such as size sample, good one). Thanks 👍

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      Interesting I didn't know that.

    • @lock042
      @lock042 Год назад

      I can confirm. The main dev of GrapXpert did implment the same algorithm in Siril :)

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      Let's get him onboard! 😉

  • @refetastro
    @refetastro 3 месяца назад

    Excellent video
    I’m missing here denoise stretch part

    • @DeepSpaceAstro
      @DeepSpaceAstro  3 месяца назад

      Thanks! This one shows the Denoise. ruclips.net/video/OmHBvWwU6zE/видео.html

  • @evastronomy8048
    @evastronomy8048 5 месяцев назад

    Great video, thank you very much for sharing. A complete beginner here, it did an amazing job on a horrible lights I got. A question, what is that Denoise option about?. CS!

    • @DeepSpaceAstro
      @DeepSpaceAstro  5 месяцев назад +1

      Thank you! Denoise removes the noise from the images. I have a video on it as well. ruclips.net/video/OmHBvWwU6zE/видео.html

    • @evastronomy8048
      @evastronomy8048 5 месяцев назад

      @@DeepSpaceAstro thank you very much!

  • @beatricehart4082
    @beatricehart4082 5 месяцев назад

    Thank you so much for the time you spend to make these fantastic videos. I'm just starting out with the Seestar S50, and your videos are very helpful.

  • @refetastro
    @refetastro 26 дней назад

    Like always excellent video but I have a question the new version Have a option to select channel link
    Is That’s for vision or will save something with it thanks

    • @DeepSpaceAstro
      @DeepSpaceAstro  26 дней назад +1

      Yeah that's just for your view within GraXpert.

    • @refetastro
      @refetastro 26 дней назад

      @ The reason ask is because I did both versions on ngc7331 than the one with the link checked actually was more brighter and blowed stars. I don’t know maybe I did something else to it,

    • @DeepSpaceAstro
      @DeepSpaceAstro  26 дней назад

      If you saved using the stretched option, that may be why. I'm pretty sure that's just for the view, but maybe somethings changed.

  • @1957Charie
    @1957Charie Год назад

    I'll have to give this another go. I used it a few times but for the most part I have been happy with the SiriL background extraction. I did recently image the North American nebula and got really lazy with my flats. I was tired and didn't bother getting a white cloth and removing my lens hood so I just did sky flats. The dawn was getting kind of too bright and the flats had way too much gradient as I was pointing to the northeast towards where the sun was coming up. The flats were usable but they did introduce a noticeable gradient. Might be interesting to compare the graxpert extraction to what SiriL did although as a previous comment stated the algorithms are likely pretty similar. I seem to recall SiriL did a good job smoothing out the background.

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      Yeah they both work pretty well, but I agree it may be worth a shot to try it with that session.

    • @1957Charie
      @1957Charie Год назад +2

      @@DeepSpaceAstro I did do a quick experiment and did a background extraction using both SiriL and Graxpert on that data. I didn't really dive in too deep. I'm sure there would be a way to get a quantitative assessment... but just looking at the results they seem to have both done a decent job. I do have to say I like the Graxpert interface even though it does add some additional steps. I really like being able to see the background image and it has bit better visualization of the whole process.

  • @charlesowillford2474
    @charlesowillford2474 Год назад

    Pretty Perfect. TY

  • @astroshooter1960
    @astroshooter1960 Год назад

    Tried it... I'm not sure how good it is, maybe I'm asking too much for something that is free.

  • @darquorze
    @darquorze Год назад

    Did anyone else have an issue with installation of graxpert? I just het stuck on i stallation screen😢

  • @IceyJones
    @IceyJones 11 месяцев назад

    check out the newest version with the AI function. its even better

    • @DeepSpaceAstro
      @DeepSpaceAstro  11 месяцев назад

      You mean like this? 😉 ruclips.net/video/EQN4tvsVTgI/видео.html

  • @Darius-j2z
    @Darius-j2z Год назад

    For some reason yesterday my SIRIL decided to go weird on me. I tried for 30 minutes to change my directory/location for files and it is stuck on C:/Users/DM/Pictures at the top . A directory I don't even use. It was fine in the morning and then in the afternoon it went weird on me when I went to change to another directory. Someway to contact somebody about this at SIRIL? Thanks....

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад +1

      I can try to help. What exactly is happening? What OS and version of Siril? If you prefer you can post in their support forum. discuss.pixls.us/c/software/siril/34

    • @DLMVegas
      @DLMVegas Год назад

      @@DeepSpaceAstro Well SIRIL appears to have fixed itself. All day yesterday it was still stuck on C:/Users/DM/Pictures for the directory at the top middle of the screen. No matter what folder I clicked on and clicked the open button it stayed on C:/Users/DM/Pictures. This morning I saw your reply and opened SIRIL. Still the same directory. I clicked on the top left Open button, chose my directory for my processed image and the path changed at the top of the screen. Something it should have done two days ago. Thanks for the response though. I've copied the support forum URL and will keep that the next time I have a problem. Keep up the good work and the great videos.

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      @@DLMVegas Maybe you just typed the wrong word, but you said you clicked the Open button? You mean the blue home button, right? That's the one that sets your working directory. Thanks, glad you found the content helpful.

    • @DLMVegas
      @DLMVegas Год назад

      @@DeepSpaceAstro No I did click the Open button first thing this morning and it changed the home directory. Now I am back to square one again though. I want to change to another directory and it is stuck on the directory I was able to open this morning. I've clicked open on the folder I want and I've clicked the Home button with the new folder in the Open dialog. Still stuck on this other directory. This isn't rocket science. I can click the Home button until my finger is sore. It's not changing to the directory I now want to be in.

    • @DLMVegas
      @DLMVegas Год назад

      OK I quit SIRIL and came back in, Clicked the HOME button and opened the folder I wanted and it did work. Again, thanks for your patience and help. You got mail also.....

  • @Earthling-it6ng
    @Earthling-it6ng Год назад

    Siril (when trying to load 100 subs of Nikon raw files - it has loaded others with no issue):
    7:06:30: Welcome to siril v1.2.0-rc1
    17:06:30: Supported file types: BMP images, PIC images (IRIS), PGM and PPM binary images, RAW images, FITS-CFA images, Films, SER sequences, TIFF images, JPG images, PNG images, HEIF images.
    17:06:30: Setting CWD (Current Working Directory) to '/Users/mark/Desktop/Siril/Vega/Lights'
    17:06:30: Parallel processing enabled: using 8 logical processors.
    17:06:31: Searching scripts in: "/Applications/Siril.app/Contents/MacOS/../Resources/share/siril/scripts"...
    17:06:31: Loading script: Mono_Preprocessing
    17:06:31: Loading script: OSC_Extract_Ha
    17:06:31: Loading script: OSC_Extract_HaOIII
    17:06:31: Loading script: OSC_Preprocessing
    17:06:31: Loading script: OSC_Preprocessing_WithDrizzle
    17:06:31: Loading script: RGB_Composition
    17:06:31: Searching scripts in: "/Users/mark/Desktop/Siril/Scripts"...
    17:06:31: Loading script: OSC_Preprocessing_WithoutDark
    17:06:31: Loading script: OSC_Preprocessing_WithoutDBF
    17:06:31: Loading script: OSC_Preprocessing_WithoutFlat
    17:06:31: Loading registration method: 1-2-3 Stars Registration (deep-sky)
    17:06:31: Loading registration method: Global Star Alignment (deep-sky)
    17:06:31: Loading registration method: Two-Pass Global Star Alignment (deep-sky)
    17:06:31: Loading registration method: Image Pattern Alignment (planetary - full disk)
    17:06:31: Loading registration method: KOMBAT (planetary surfaces or full disk)
    17:06:31: Loading registration method: Comet/Asteroid Registration
    17:06:31: Loading registration method: Apply Existing Registration
    17:06:31: Default FITS extension is set to .fit
    17:07:05: Setting CWD (Current Working Directory) to '/Users/mark/Desktop/Siril/Veil nebula/Lights'
    17:07:30: Starting script /Users/mark/Desktop/Siril/Scripts/OSC_Preprocessing_WithoutDBF.ssf
    17:07:30: ############################################
    17:07:30: # Script for Siril 1.0
    17:07:30: # August 2020
    17:07:30: # (C) Cyril Richard / Colmic
    17:07:30: # OSC_Preprocessing_WithoutDBF v1.0
    17:07:30: #
    17:07:30: ########### PREPROCESSING SCRIPT ###########
    17:07:30: # Script for color camera preprocessing
    17:07:30: # needs 1 set of RAW images in the working
    17:07:30: # directory, within 1 directory:
    17:07:30: # lights
    17:07:30: #
    17:07:30: ############################################
    17:07:30: Running command: requires
    17:07:30: #preprocess lights
    17:07:30: Running command: cd
    17:07:30: 'lights' No such file or directory
    17:07:30: Error in line 18 ('cd'): generic error.
    17:07:30: Exiting batch processing.
    17:07:30: Setting CWD (Current Working Directory) to '/Users/mark/Desktop/Siril/Veil nebula/Lights'
    17:07:30: Script execution failed.
    Any ideas? The are in a "Lights" folder (like all others I do this with). Cheers.

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      I assume you commented on the wrong video? Regardless this line is showing your issue:
      'lights' No such file or directory
      If you scroll up through the log you'll see your working directory is set wrong:
      Setting CWD (Current Working Directory) to '/Users/mark/Desktop/Siril/Veil nebula/Lights'
      You're working directory should be set to '/Users/mark/Desktop/Siril/Veil nebula'

    • @earthling-fh2mg
      @earthling-fh2mg Год назад

      Ah! Such simple oversights yet when it says “lights” no such file it’s confusing when you are not conversant with the logic of how it all operates. So i fixed that and another problem arose but I’m at a different computer at the moment. I just commented on this video because I recognise all your videos are based around Siril so I didn’t think it mattered which specific video I commented on. I’d just watched this one and watch so many. Thanks for the pointer. Appreciated.

  • @jackcharles1333
    @jackcharles1333 Год назад

    'promo sm' 😱

  • @JoeBob79569
    @JoeBob79569 Год назад

    Good video but that "electric shock" sound at 2:51 for your little subscription alien is extremely annoying.
    More than anything it makes me want to unsubscribe so that I never have to hear it again.

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      Thanks and Sorry to hear that.

    • @joederbyshire_
      @joederbyshire_ Год назад +3

      bit of an overreaction

    • @JoeBob79569
      @JoeBob79569 Год назад

      @@joederbyshire_ Doesn't seem that way to me because it literally hurts my whole body, like I was literally getting shocked.
      Maybe I got electrocuted in a previous life or something!

    • @ronpepitone4242
      @ronpepitone4242 Год назад +1

      I love it all, thanks for your most excellent presentation format and please keep it up

    • @DeepSpaceAstro
      @DeepSpaceAstro  Год назад

      @@ronpepitone4242 Thank you! Glad you enjoyed it!