Colour recovery [Was: Regex and more! [Was: Crossword puzzle]]

Discussion in 'Australia Photography' started by Phred, Nov 4, 2009.

  1. Phred

    Phred Guest

    Thanks for that info Richard. I must admit I was mainly interested
    because I have some old colour pics and slides that have seriously
    degraded (especially 30-year-old Ectachrome slides taken when I was
    foolish and ignorant enough to use it instead of Kodachrome).

    From what I gather, your technique depends on "clues" in the recorded
    image(s), so wouldn't be of much use to me? :-(

    [But I admit I haven't yet followed *all* the links on that site.]

    Cheers, Phred.
     
    Phred, Nov 4, 2009
    #1
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  2. Phred

    Bob Larter Guest

    The process relies on residual chroma information retained on
    cine-recorded colour TV programs, so it's of no use for film.

    Personally, I recover faded photos by scanning them (with as many bits
    per colour channel as possible), then re-levelling R,G & B in Photoshop
    (16 bit mode). It gives you a pretty good result, & with some tweaking,
    an excellent result - even on badly faded colour prints dating back to
    the 70's.
     
    Bob Larter, Nov 11, 2009
    #2
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  3. Phred

    Phred Guest

    [CLBM dropped from followups; aus.computers added]

    The process relies on residual chroma information retained on
    cine-recorded colour TV programs, so it's of no use for film.

    Personally, I recover faded photos by scanning them (with as many bits
    per colour channel as possible), then re-levelling R,G & B in Photoshop
    (16 bit mode). It gives you a pretty good result, & with some tweaking,
    an excellent result - even on badly faded colour prints dating back to
    the 70's.[/QUOTE]

    Thanks for that advice Bob. Have you tried that approach with slides?
    I guess it should work the same, but a problem could be scanning
    slides with sufficient resolution without going to an expensive
    dedicated slide scanner. (Do those still exist? I haven't seen
    mention of them for a few years now, not even ads. Perhaps like so
    much else, they have succumbed to the mediocrity of the masses?)

    Cheers, Phred.
     
    Phred, Nov 11, 2009
    #3

  4. Bob Larter's legal name: Lionel Lauer
    Home news-group, an actual group in the "troll-tracker" hierarchy:
    alt.kook.lionel-lauer (established on, or before, 2004)
    Registered Description: "the 'owner of several troll domains' needs a group where he'll stay on topic."

    <http://groups.google.com/groups/search?hl=en&num=10&as_ugroup=alt.kook.lionel-lauer>

    "Results 1 - 10 of about 2,170 for group:alt.kook.lionel-lauer."
     
    Bob Larter is Lionel Lauer - Look it up., Nov 11, 2009
    #4
  5. It would only be rubbish if it weren't true.


    Bob Larter's legal name: Lionel Lauer
    Home news-group, an actual group in the "troll-tracker" hierarchy:
    alt.kook.lionel-lauer (established on, or before, 2004)
    Registered Description: "the 'owner of several troll domains' needs a group where he'll stay on topic."

    <http://groups.google.com/groups/search?hl=en&num=10&as_ugroup=alt.kook.lionel-lauer>

    "Results 1 - 10 of about 2,170 for group:alt.kook.lionel-lauer."
     
    Bob Larter is Lionel Lauer - Look it up., Nov 11, 2009
    #5
  6. Phred

    Bob Larter Guest

     
    Bob Larter, Nov 11, 2009
    #6
  7. Phred

    Bob Larter Guest

    Don't mind the troll, Phred, he always follows up my posts with this
    rubbish. ;^)
     
    Bob Larter, Nov 11, 2009
    #7
  8. Phred

    Bob Larter Guest

    *belch*
     
    Bob Larter, Nov 11, 2009
    #8
  9. Phred

    Warren Guest

    Phred expounded in
    My wife and I just bought a small unit for $80 Cdn at Costco.
    You can use it via USB, or just in your lap in front of the TV,
    scanning into a memory stick. 5.x MP full colour scanned images.

    Scan is more of a 0.5 second "picture take", since there is no
    moving parts. You just advance the tray manually for the next
    slide (or negative). It's quick compared to a scanner. You
    spend all your time loading/unloading the slide tray.

    Warren
     
    Warren, Mar 17, 2010
    #9
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