stretching one angle of a picture

Discussion in 'General GIMP help' started by IndoMK, Oct 29, 2010.

  1. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    I think this is where this belongs...

    I'm in the middle of a gimp project where I need to stretch an angle cut to straight without distorting the rest of the picture. So far I haven't been able to figure out how...

    Ok, more explanation. I have a picture of a cathedral hallway, the perspective isn't exactly center, and I need both sides of the picture to be the same (lighting and etc). So I selected the left side, and remove from selection the portion of the ceiling that belonged to the other side. This left me with an angle across the top right corner of the picture. I duplicated the layer, flipped it horizontally, moved it to the right, and aligned it. But now I have a 'v' into the top of the picture. I need to take that angle, and stretch it to vertical so that the ceiling arches will match. But I can't distort the rest of the picture... Any ideas?
  2. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
    Help us help you.
    Pictures? :p
  3. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    Oh, of course. Silly of me not to have done so before. I took two screenshots, one of the original image, and one of where I'm currently 'stuck'...
  4. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
    Can you send me the file? I think I can fix it. :)
  5. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    Sure. Uh, how do I do that? Zip it and attach it here?
  6. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
  7. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    Mm, tried to attach it, was told that the file size is too big. It's a 17mb file... The only layers are the original image, the left and right halves, and a lightening overlay. Should I take any of those out to decrease the size?
  8. Lawlito

    Lawlito Member

    Joined:
    Aug 25, 2010
    Messages:
    185
    Likes Received:
    0
    Trophy Points:
    16
    post the .xcf file on mediafire and put the link here ;)
  9. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    Oh good idea! Except I can't remember my mediafire password... :p But dropbox works just as well I think. :) Here you are... <a class="postlink" href="http://dl.dropbox.com/u/8575541/Hope.zip" onclick="window.open(this.href);return false;">http://dl.dropbox.com/u/8575541/Hope.zip</a>
  10. Arzoroc

    Arzoroc Moderator Staff Member

    Joined:
    Oct 12, 2009
    Messages:
    2,199
    Likes Received:
    0
    Trophy Points:
    36
    Looks like a case for resynthesizer .. but it will take a time with such a huge picture...
    BTW:
    G'MIC has got an "Anisotropic Filtering" filter, wich will reduce all the noise in your image. It's highly recommended to use ;)
  11. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
    Uploading my attempt.
    Not great but oh well. :p
  12. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
    [​IMG]

    Still some stuff that needs tweaking, I'll try to get around to it if you like this at all.
  13. Arzoroc

    Arzoroc Moderator Staff Member

    Joined:
    Oct 12, 2009
    Messages:
    2,199
    Likes Received:
    0
    Trophy Points:
    36
    If you don't mind me, Cyril...

  14. Exel

    Exel New Member

    Joined:
    Oct 29, 2010
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    1
    nice edit cyril, some stuff that could be fixed when you look close but solid overall. not to derail this topic or anything, (the first one i found you on), any word from the staff on if gt is eventually going back up? just curious, seems like a while now since it's been working.
  15. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
    Thanks Baum. But I deleted the xcf. -.-.-.-
  16. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    Ooh, that looks better than the attempts I'd made... It gave me an idea too! A couple days ago, I did a project that involved extensive use of the curve bend tool, so I just checked to see if it could work for this situation. I think it turned out quite nicely... there was a little bit of 'empty space' that needed to be cloned in, but it was very minor. What do you think?

    [​IMG]
  17. IndoMK

    IndoMK New Member

    Joined:
    Oct 29, 2010
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    1
    Oh, yeah, G'MIC. I have it installed, but it needs to be updated and I've never used it... is it really all that good?
  18. Scrapie

    Scrapie Member

    Joined:
    Jan 28, 2010
    Messages:
    661
    Likes Received:
    0
    Trophy Points:
    16
    Home page:
    Go into your bin and get it back cyril ! xD
  19. Arzoroc

    Arzoroc Moderator Staff Member

    Joined:
    Oct 12, 2009
    Messages:
    2,199
    Likes Received:
    0
    Trophy Points:
    36
    @IndoMK:

    Very nicely blended, could you give us a link for the curve tutorial?

    And G'MIC is great for experimenting with hundreds of effects, but I personally don't like those.
    What I like about G'MIC is only one thing: Anisotropic Smoothing, wich just pwns. It's basically removing all the noise in your image, giving it a great look.

    (Filters > G'MIC > Enhancement > Anisotropic Smoothing)
  20. Cyrilshark

    Cyrilshark Active Member

    Joined:
    Oct 8, 2008
    Messages:
    2,132
    Likes Received:
    0
    Trophy Points:
    36
    Occupation:
    Graphic Designer
    Location:
    Good ol' US of A :)
    Home page:
    I didn't delete it, I forgot to save it. :|

    All I did was take the two halves and rotate them until the covered the white parts (place a vertical guide at 50% for perfection), then erase/smudge/blend until it looks nice n purty. :3

Share This Page