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Thread: Film Negatives

  1. #1

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    Film Negatives

    I dunno if this is in the right forum. Sorry if it isn't.

    I'm trying to make a VB program that develops negatives. I've scanned the negatives and stored them as bitmaps. I've tried inverting the colors but that doesn't work. Is it possible to apply some algorithm to the colors, or is there no substitution for the chemicals used in developing?

    Thanks
    -George
    < o >

  2. #2
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    You need a special scanner. Normal scanners bounce the light off, but for nagitives the light needs to pass though the image.
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  3. #3
    Retired G&G Mod NoteMe's Avatar
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    Yes you need a "dias" scanner to scan negatives..

  4. #4
    Frenzied Member cyborg's Avatar
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    To invert colors in VB:

    Add a picturebox and set its property autoredraw to true and scalemode to 3.

    Add the picture you want to invert.

    Create a button.

    in Command1_Click add

    VB Code:
    1. Dim X As Long
    2. Dim Y As Long
    3.  
    4. Picture1.DrawMode = 6
    5.  
    6. For X = 0 To Picture1.ScaleWidth
    7.     For Y = 0 To Picture1.ScaleHeight
    8.         Picture1.PSet (X, Y), Picture1.Point(X, Y)
    9.     Next Y
    10. Next X
    11.  
    12. Picture1.DrawMode = 13
    Check out the FAQ and do a search before you post.
    My tutorials: Anti-Alias Pixels, Accurate Game Loop, Resource File

  5. #5
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    cyborg, read the question a little more carefully. If you know much about how printing nagitives and a regular scanner works, you would see why the inverting colors wouldn't work.
    Involved in: Sentience

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