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  1. #1

    Default Striations in a photo

    Is there a way in Xara PGD v. 16 to eliminate the vertical striations in this old copied photo?

    I've tried watching the videos and experimenting, but can't figure out a way to effectively accomplish removing these striations.
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    R_o_n _a_l _d __C. __D_u_k_e

    x a r a . c o m..a r t i s t s ..g a l l e r y

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  2. #2
    Join Date
    Jul 2010
    Location
    England
    Posts
    648

    Default Re: Striations in a photo

    Ron that's a tricky problem and I'm afraid after quick play around, I've not been able to find away that doesn't also remove the fine detail. Hopefully somebody else will know the best approach.

    In my attempt below I tried applying some blur using the blur/sharpness option in the photo tool bar.
    Have you tried making a really large scan of the photo then reducing down it's size, to see if that somehow helps?

    He looked a fine looking gentleman.

    Click image for larger version. 

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    Jono (Xara Photo & Graphic Designer 16.1.1.56358, Renewal due: 04 June 2019)

  3. #3
    Join Date
    Dec 2007
    Location
    Sunshine Coast BC, Canada. In a beautiful part of BC's temperate rainforest
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    9,864

    Default Re: Striations in a photo

    To be honest you would probably get a better result in a dedicated photo app but it can be done in Xara. It's not a quick process, and not perfect. If you have access to a hires copy of the image you will get better results I just copied the image from your post.

    first give your photo some extra sharpness and contrast not much just a bit (I know this seems counter intuitive but bear with me )

    next clone your photo (ctrl +K) Select your top copy and go to the live effects and under distortion there is a median blur effect set both sliders to about 3 then set the resolution of the effect to 300 ( default will be automatic)
    Now use the eraser tool to brush back in fine details where you need them around the eyes, nose, hair etc. You will be reintroducing striations back into large areas of fine detail like his hair and beard but it can't be helped. If you use a pen and tablet you can set pressure sensitivity on the eraser tool for more control.
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    My current Xara software: Designer Pro 365 12.6

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  4. #4
    Join Date
    Sep 2000
    Location
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    Default Re: Striations in a photo

    Click image for larger version. 

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    Duplicate image, set alpha to 50%, displace by 1.5 pixels, experiment with the horizontal displacement, duplicate again perhaps. Only move the copies horizontally, never vertically.

  5. #5
    Join Date
    Aug 2000
    Location
    Placitas, New Mexico, USA
    Posts
    37,876

    Default Re: Striations in a photo

    There used to be a method, which I have forgotten decades ago, in Photoshop where you apply a Gaussian Blur and follow it up with an Unsharp Mask.
    Gary W. Priester
    Mr. Moderator Emeritus Dude
    , Sir

    gwpriester.com | Custom-Stereograms.com | eyeTricks on Facebook






  6. #6

    Default Re: Striations in a photo

    Thanks, Jonopen, Frances, Paul and Gary.
    R_o_n _a_l _d __C. __D_u_k_e

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  7. #7
    Join Date
    Jan 2018
    Posts
    16

    Default Re: Striations in a photo

    I am a bit late to the party.. but if this photo was scanned, turn it 45į and then re-scan it.
    That's how I remove stripes and dots from newspaper/magazine photos.

    :-)
    JoŽlle

  8. #8

    Default Re: Striations in a photo

    Quote Originally Posted by Joelle View Post
    I am a bit late to the party.. but if this photo was scanned, turn it 45į and then re-scan it.
    That's how I remove stripes and dots from newspaper/magazine photos.

    :-)
    JoŽlle
    Thank you, Joelle. I'll give it a try.
    R_o_n _a_l _d __C. __D_u_k_e

    x a r a . c o m..a r t i s t s ..g a l l e r y

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  9. #9

    Default Re: Striations in a photo

    Hmmmm
    Didn’t work for me, but thanks.
    R_o_n _a_l _d __C. __D_u_k_e

    x a r a . c o m..a r t i s t s ..g a l l e r y

    Xara's Facebook

    Xara Designer Pro X 16, Xara 3D7 Web Designer

  10. #10
    Join Date
    Aug 2000
    Location
    Harwich, Essex, England
    Posts
    19,466

    Default Re: Striations in a photo

    That's interesting Joelle. Not having an original photo that recreates this Striations issue it's not easy to replicate. Could you explain in greater detail please. I have tried experimenting & I can see a definite improvement but my scanners not up to much.
    Egg

    Intel i7 - 4790K Quad Core + 16GB Ram + 232 GB SSD + 250 GB SSD portable drive
    Xara Designer Pro X 16

 

 

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