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  1. #1
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    Exclamation Announcing the AstronomyForum.net Astrophotography Processing Challenge number 1!



    Announcing the AstronomyForum.net Astrophotography Processing Challenge number 1!


    Here's how it will work.


    About once a month a new 'Challenge' photo will be made available, these will be announced in a new thread 'stickied at the top of the Astrophotography Processing Forum. Members may click on the link and download the calibrated 16 bit .tif file (Keep in mind these will be very large files so give them some time to download to your computer) These images will be full sized 'pre-processed' images (darks, flats, bias removed and stacked). However now is when the fun kicks in!


    We ask that the members use what ever software they want, GIMP, Photo Shop (or PS Elements), Pixinsite, Images Plus, AstroArt, IRIS or whatever your little heart desires to post process the image. Attach the completed image (please post as a .jpg max 1000 x 1000 pixel size) on the same tread and include the methods you used to get to the end result. Please submit your methods with as complete of detail as you can so others will have some idea how you got to the final result.

    ___________________________________________
    Example:


    Click on image for a larger view

    Post processed using Photoshop CS2 with Noel Carboni's actions


    1. levels and curves to bring out DSO

    2. Noel Carboni's plug in "Soft Color Gradient removal"
    3 Set black and white points using levels
    4 Noel Carboni's plug in "Local contract enhancement"
    5 Did some minor cosmetic fixes using PS clone stamp.
    6 Increased saturation using Adam Blocks method. (can give details if you like.
    7 Noel Carboni's plug in "Increase star color"
    8 A final pass of levels and curves, used curves to help pull out the contrast.
    9 Noel Carboni's plug in "Deep Space noise reduction" and a couple of passes with the "Denoise" PS plugin.
    10 PS "Smart Sharpen" tool (Shadow, fade 80%
    Highlight, 20%
    Power, 65%)
    11 Resized to 1000 px max and converted to .jpg.

    _________________________________________________

    Please export your full history from Photoshop, GIMP or similar programs - How To here: How To Document & Post Your Processing Steps from History Photoshop CS, Gimp Software

    The concept is to allow members to share processing techniques and ideas so everyone can learn and improve. The Challenge is open to all so don't feel intimidated as we are all learning. If you see a post and don't understand how a particular process is being done please ask as I'm sure there will be many new methods.


    The plan is only one Challenge image will be used for each thread so it will be easy to see the different results and methods for a particular image. I may be asking some of our accomplished AP er's to contribute a pre-processed image from time to time so we can get some variety.


    If the AP Challenge program gets up and running and is as popular as we think it will be, hopefully we can draw a sponsor that will be willing to donate a monthly prize for the best of the 'post processed' images for each Challenge!


    In the mean time take a look at the first Challenge image. I'm not going to tell you what it is, but I will say there is something buried in all that dark sky! The image will have some challenging aspects to it so take your time and pull as much from it as you can.


    And just remember to have fun!!!!!

    Challenge 1 image information:
    Author Information: ghswen
    Location of Capture: Murrieta, Ca / Bortle 6
    Capture Equipment Information: Skywatcher 254N (newtonian) on EQ5p Synscan mount, guided
    Camera Information: Canon 350d modified
    Software Used to Process: Nebulosity 2
    Stacking Information: 14 light frames, 2 mins each ISO1600
    Darks / Flats / Bias : 15 darks (Bad Pixel Master) / 15 Flats / 15 bias


    download here:
    http://www.astronomyforum.net/attach...1&d=1330537211
    Attached Images Attached Images
    Last edited by admin; 02-29-2012 at 05:40 PM. Reason: added history export and new TIFF
    Gordon
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    Scopes:
    Explore Scientific ED80CF, Skywatcher 254N, Orion ST80, Orion Atlas EQ-g mount, Orion SSAG guider. Baader MPCC MkIII coma corrector, Vixen 70mm refractor. Lunt LS35THa solar scope. Skywatcher EQ5pro mount. Imagers: ZWO ASI1600 MM Cool, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm Eyepieces: a few, Primary software: Cartes du Ciel, EQMOD, SGP, Nebulosity, Photoshop, StarTools V1.4
    Blog:
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  3. #2
    admin's Avatar
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    Default

    Thanks Gordon!

    My try all in Photoshop CS5. History export below:

    Auto Tone
    Levels
    With Auto
    Undo
    Levels
    Levels
    Preset Kind: Custom
    Adjustment: levels adjustment list
    levels adjustment
    Channel: composite channel
    Input: 0, 76
    Levels
    Levels
    Preset Kind: Custom
    Adjustment: levels adjustment list
    levels adjustment
    Channel: composite channel
    Input: 10, 147
    HDR Toning
    Scripts
    File: C:\Program Files\Adobe\Adobe Photoshop CS5.1 (64 Bit)\Required\HDRToning.jsx
    “undefined”
    Levels
    Levels
    Preset Kind: Custom
    Adjustment: levels adjustment list
    levels adjustment
    Channel: composite channel
    Input: 14, 179
    Auto Tone
    Levels
    With Auto
    Auto Color
    Levels
    With Auto Black & White
    With Auto Neutrals
    Auto Contrast
    Levels
    With Auto Contrast
    Brightness/Contrast
    Brightness/Contrast
    Brightness: 116
    Contrast: 1
    Without Use Legacy
    HDR Toning
    Scripts
    File: C:\Program Files\Adobe\Adobe Photoshop CS5.1 (64 Bit)\Required\HDRToning.jsx
    “undefined”
    Auto Tone
    Levels
    With Auto
    Undo
    Auto Color
    Levels
    With Auto Black & White
    With Auto Neutrals
    Undo
    Levels
    Levels
    Preset Kind: Custom
    Adjustment: levels adjustment list
    levels adjustment
    Channel: composite channel
    Gamma: 0.97
    Shadows/Highlights
    Shadow/Highlight
    Shadow: Parameters
    Amount: 0%
    Tone Width: 100%
    Radius: 38
    Highlight: Parameters
    Amount: 96%
    Tone Width: 49%
    Radius: 30
    Black Clip: 0.01
    White Clip: 0.01
    Contrast: -4
    Color Correction: 100
    Brightness/Contrast
    Brightness/Contrast
    Brightness: 12
    Contrast: 30
    Without Use Legacy
    Image Size
    Image Size
    Width: 900 pixels
    With Scale Styles
    With Constrain Proportions
    Interpolation: bicubic
    Unsharp Mask
    Unsharp Mask
    Amount: 112%
    Radius: 0.8 pixels
    Threshold: 8

    Curves

    Color Balance
    Color Balance
    Shadow Levels: 0, 0, 0
    Midtone Levels: -2, 7, 28
    Highlight Levels: 0, 0, 0
    With Preserve Luminosity
    Export
    Using: Save for Web
    Quality: 67



    A few quick comments:

    1) Awesome image Gordon thanks for posting it!!
    2) A very fun process but tough to separate out the faint nebulosity vs the background and stars
    3) would like to try again with another program, and or PS with star masks and nebulosity processed separately to protect stars and background.
    Attached Images Attached Images
    Name: Gus OTAs: ED 100 PRO refractor, Orion ST80 (not the CF), 8" Dob stuck in Canada Mounts:HEQ5PRO Synscan mount, Manfrotto Tripod CAMS: Guidecam Philips SPC900 webcams (4), Canon unmodded-450D DSLR

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  5. #3
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    Default

    Great work Gus!

    I think my post processing PS history list had quite a few more 'Undo's' than yours does!
    Gordon
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    Scopes:
    Explore Scientific ED80CF, Skywatcher 254N, Orion ST80, Orion Atlas EQ-g mount, Orion SSAG guider. Baader MPCC MkIII coma corrector, Vixen 70mm refractor. Lunt LS35THa solar scope. Skywatcher EQ5pro mount. Imagers: ZWO ASI1600 MM Cool, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm Eyepieces: a few, Primary software: Cartes du Ciel, EQMOD, SGP, Nebulosity, Photoshop, StarTools V1.4
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  6. #4
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    Default

    I want to have a go but the board won't let me download the file :-(

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    SWEquinox ED80 Pro (Schott/Ohara Fluorite)+Baader Steeltrack, C8 XLT Mount:
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  7. #5
    ghswen's Avatar
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    Default

    Hi Phil,

    Give it some time to download (it's a large file) it may take a minute or two.
    Gordon
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    Scopes:
    Explore Scientific ED80CF, Skywatcher 254N, Orion ST80, Orion Atlas EQ-g mount, Orion SSAG guider. Baader MPCC MkIII coma corrector, Vixen 70mm refractor. Lunt LS35THa solar scope. Skywatcher EQ5pro mount. Imagers: ZWO ASI1600 MM Cool, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm Eyepieces: a few, Primary software: Cartes du Ciel, EQMOD, SGP, Nebulosity, Photoshop, StarTools V1.4
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    Default

    what are you using to download it?i have just tried
    it and it is working fine here.
    clear skies,

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    andy

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    Default

    Same here as with Phil, looks like only admins have permission to download.

    No download possible. Note: Wasn't planning on processing it, as I am dumb as a brick when it comes to post processing, just testing the d/load..

    Paul
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    Default

    Quote Originally Posted by andyp180 View Post
    what are you using to download it?i have just tried
    it and it is working fine here.
    clear skies,
    I rest my case...only admins can download it...haha.

    Paul
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  11. #9
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    Default

    ok fixed sorry ironing out the new competition Paul it just takes some practice, no intelligence needed to do this. Practice makes perfect and I need a lot more practice :P
    Name: Gus OTAs: ED 100 PRO refractor, Orion ST80 (not the CF), 8" Dob stuck in Canada Mounts:HEQ5PRO Synscan mount, Manfrotto Tripod CAMS: Guidecam Philips SPC900 webcams (4), Canon unmodded-450D DSLR

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  13. #10
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    Default

    Quote Originally Posted by Astronewb View Post
    No download possible. Note: Wasn't planning on processing it, as I am dumb as a brick when it comes to post processing, just testing the d/load..

    Paul
    Hi Paul,

    That's part of the reason for the 'Challenge', share ideas, methods, etc etc so we can all learn together.

    Here's a list of some tutorials that should help also: Astrophotography Image Processing How To Tutorials Stickies FAQs

    Give it a shot and post back here if you have questions!
    Last edited by ghswen; 02-29-2012 at 05:52 PM.
    Gordon
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