Correcting blow-out

Discussion in 'Photoshop' started by tony cooper, Nov 15, 2008.

  1. This isn't a perfect fix, and it won't retrieve data that isn't tehre to
    start with, but it might help a bit.
    Duplicate the layer, then desaturate the new one.
    Invert the new layer and set the blending mode to overlay.
    Now apply gaussian blur and adjust the radius to about 10 pixels.
    Lastly flatten the image, and constrict the levels a smidge to boost the
    image.

    Like I said, it won't fix it perfectly, but it will help.
     
    \(used to be\) Fat Sam, Nov 16, 2008
    #21
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  2. tony cooper

    Dave Guest

    On Sun, 16 Nov 2008 13:46:35 -0000, "\(used to be\) Fat Sam"

    Sam, you used to be "Fat Sam".
    (Please remember, English is not my native language)
    Now, to me, this can point to 2 absolute different meanings.
    Either, you are (after so long) used to it
    or
    you are losing weight.
    Which one?
     
    Dave, Nov 16, 2008
    #22
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  3. LOL. I'm losing weight.. Quite a lot of it in fact..
     
    \(used to be\) Fat Sam, Nov 16, 2008
    #23
  4. tony cooper

    tony cooper Guest

    I try all methods. I don't expect them to significantly improve this
    image, but the process helps me learn how to make future corrections.

    How do you invert a layer? The Select>Inverse is grayed out for a
    full layer. I can invert a selection, but not a layer.
     
    tony cooper, Nov 16, 2008
    #24
  5. Ah, I should have clarified that, as it's not under the layers menu. Sorry.
    Ensure the new desaturated layer is selected, then go to Image > Adjustments
     
    \(used to be\) Fat Sam, Nov 16, 2008
    #25
  6. tony cooper

    Dave Guest

    of what, the highlights being highlights
    or the possibility of more data?
    I think the 1st will be easier to prove
    the last was just added to sound clever
     
    Dave, Nov 16, 2008
    #26
  7. tony cooper

    Dave Guest

    he he, I thought so, but had to make sure:-0
     
    Dave, Nov 16, 2008
    #27
  8. tony cooper

    Dave Guest

    thinking again, I should be able to convince a photographer with a
    view camera and a black cloth over his head, anything on digital:)))
     
    Dave, Nov 16, 2008
    #28
  9. tony cooper

    tony cooper Guest

    OK...that works. I don't see a significant effect on the image, but
    at least I've learned some new that might work in another image.
     
    tony cooper, Nov 16, 2008
    #29
  10. It's a technique I use for images where there's an extreme difference
    between the highlight and shadow areas, and I want to balance them out a
    bit. I thought it might help a little with this image, but after tryingit
    myself, it didn't really touch the blown highlight. It did lift the details
    in the shadows a bit though.
     
    \(used to be\) Fat Sam, Nov 16, 2008
    #30
  11. tony cooper

    KatWoman Guest

    OK just for the curiosity factor I made the RAW experiment

    it took me just so far

    what I did
    open image in RAW
    ignored left side of image and concentrate on only blow out areas
    recovery 100%
    exposure pull under a little
    sliders for all the colors
    added to blue and green channels, got little more details
    went to highlight & light sliders pushed up and added got little more

    saved as copy of orig open both in PS
    drag shift layer on top of each other
    mask portion to show darkened blowout area

    it was better but not perfect still had big white blowout on top porch
    added transparent gradient sky on darken to bring up bldg edge
    select color range on white blowout
    control J
    then added texture to white areas-blend by mode to layer below


    add curve to inverse fix levels on right side gold building

    http://xs233.xs.to/xs233/08460/savannah-b4-after263.jpg
    http://xs233.xs.to/xs233/08460/savannah-screenshot723.jpg
    http://xs233.xs.to/xs233/08460/savannahraw701.jpg
    http://xs433.xs.to/xs433/08460/savannah-kats879.jpg
     
    KatWoman, Nov 16, 2008
    #31
  12. tony cooper

    KatWoman Guest


    OK just for the curiosity factor I made the RAW experiment

    it took me just so far

    what I did
    open image in RAW
    ignored left side of image and concentrate on only blow out areas
    recovery 100%
    exposure pull under a little
    sliders for all the colors
    added to blue and green channels, got little more details
    went to highlight & light sliders pushed up and added got little more

    saved as copy of orig open both in PS
    drag shift layer on top of each other
    mask portion to show darkened blowout area

    it was better but not perfect still had big white blowout on top porch
    added transparent gradient sky on darken to bring up bldg edge
    select color range on white blowout
    control J
    then added texture to white areas-blend by mode to layer below


    add curve to inverse fix levels on right side gold building

    http://xs233.xs.to/xs233/08460/savannah-b4-after263.jpg
    http://xs233.xs.to/xs233/08460/savannah-screenshot723.jpg
    http://xs233.xs.to/xs233/08460/savannahraw701.jpg
    http://xs433.xs.to/xs433/08460/savannah-kats879.jpg
     
    KatWoman, Nov 16, 2008
    #32
  13. tony cooper

    KatWoman Guest

    cut the guy some semantic slack

    He is not a native English speaker
    what he meant is quite easy to understand
     
    KatWoman, Nov 16, 2008
    #33
  14. Another possible solution that I'm amazed hasn't been suggested yet is to
    simply replace that whole area with a new background.
    Obviously you'd choose something more suitable than the rural one I used,
    but you get the general idea.
    http://www.samknoxphotography.co.uk/misc/newbg.jpg
     
    \(used to be\) Fat Sam, Nov 16, 2008
    #34
  15. tony cooper

    KatWoman Guest


    I thought of it
    but as he said it was more a document of his trip I felt it was not the
    right choice
    I like the white fence and porches -it is part of the city's charm and
    overall look

    PLUS that was not what he asked
    and he is a good enough PS user to have thought of it himself
    my first rule is to respect the photographer's orig vision
    do the least harm
    and in this case answer the question how to fix it
    but of course I would offer a client that solution
     
    KatWoman, Nov 16, 2008
    #35
  16. tony cooper

    Joel Guest

    OK, here is the link of the photo, and you may want to ZOOM IN very close
    to see the curve. And because of the way of how general photo looks, I
    can't find a good way to mark the horizontal.

    Also, all those line are 100% STRAIGHT so if you put against the wall or
    other larger subject you may see the line isn't straight or bending.

    http://img117.imageshack.us/my.php?image=tonystraightsavannah020xf5.jpg

    ZOOM IN to see more detail.
     
    Joel, Nov 16, 2008
    #36
  17. tony cooper

    Joel Guest

    I don't use the command often, but you may want to try the "Selective
    Color" command, and you may want to select the specific area first.

    And again, it may be good idea to use with the basic Layer & Masking too..
    well, I have the result of "selective color" in my head and I think it may
    need the Layer & Masking technique to smooth the error around the edge.

    Selective Color is a very powerful, useful command, and it will be even
    more useful if you use with other useful command like Layer & Masking &
    Selection etc..
     
    Joel, Nov 16, 2008
    #37
  18. Agreed.
    That's why you'll notice I didn't suggest that until well afer I had already
    offered up a proper suggestion for a fix.
    The replacement background was more a trivial tongue-in-cheek suggestion.
     
    \(used to be\) Fat Sam, Nov 17, 2008
    #38
  19. tony cooper

    tony cooper Guest

    Actually, that was one of my first thoughts. I went through the
    images I'd taken on that trip and looked for something that would be
    suitable. Unfortunately, I didn't have anything close.

    That's a photograph of a house in the historic district of Savannah.
    The only suitable insert that could be used - and still represent the
    scene as taken - would be some other historic house that could
    conceivably be across the street.
     
    tony cooper, Nov 17, 2008
    #39
  20. tony cooper

    tony cooper Guest

    Quite an impressive job!
     
    tony cooper, Nov 17, 2008
    #40
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