digitally remove mildew spots from old slide

Discussion in 'Photoshop' started by George, May 5, 2005.

  1. George

    George Guest

    Photoshop 7.0: any suggestions for cleaning up the sky in this photo?
    I've been using the clone tool with very good results, but it is too
    labor intensive. It is for display on line, not to be printed. Thanks in
    advance, George
    George, May 5, 2005
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  2. George

    RSD99 Guest

    RSD99, May 5, 2005
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  3. Select the sky with the lasso tool. Run 'Filter - Noise - Dust &
    Scratches' with Radius 2 pixels and Threshold 7.
    Johan W. Elzenga, May 5, 2005
  4. George

    Tom Thomas Guest

    Select the entire sky and apply the "Dust & Scratches" filter with a
    radius of 2. That takes care of the vast majority of the specks. You
    might have to tinker if you want to avoid losing the wires crossing
    the sky, or you might decide to get rid of those also.
    Tom Thomas, May 5, 2005
  5. George

    George Guest

    Thank you. that worked very well and is saving me a lot of time.
    George, May 6, 2005
  6. George

    harrylimey Guest

    Here's a method I copied from somewhere and some clever person! I have
    not tried this but it sounds good, and seems to involve very little
    maybe you could try it and post back the result?


    Here's a technique to try. If the spots are light, duplicate the
    background layer and change the duplicate's blending mode to Darken.
    With the Move tool selected, press any of your arrow keys once. Most of
    the spots disappear. You've separated each dust mote and its twin (on
    the second layer) by 1 pixel. Photoshop compares the two layers and
    chooses the darker pixel at each location. If most of the dust is 1
    pixel in size, you've solved your problem.

    If there are still too many dust spots, move one more pixel (I choose a
    different direction). You may find fine dark details (like eyelashes)
    become too thick. You can restore these details with a layer mask,
    making the duplicate layer transparent just in those few details."
    harrylimey, May 6, 2005
  7. George

    mono Guest

    If you have a lot of shots similarly affected (is it mildew or just
    crud from poor attention to cleaning before scanning?) you might want
    to consider a flatbed scanner such as the Epson 4870 or 4990 as it is
    now. I have some (far more than I'd like) slides and negs that have
    been badly affected by fungus and are just a cobweb of fungal strands.
    These scanned on a Coolscan IV are a nightmare to clean up, read clone
    up. Scanned on a 4870 the difference is quite remarkable. The fungus is
    barely noticeable while the image is only slightly worse than the
    Coolscan scan, in common with the expected results from the two
    machines. This is without using ICE which is another thing you might
    like to try if your slide lends itself to it i.e not a Kodachrome.
    If it's a one off, messing about in PS is probably your answer. Of
    course if you already are using a 4870 then, damn, yours is better than
    mine :)

    (the other one)
    mono, May 6, 2005
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