Skip navigation

B&W negatives to positive photos

7047 Views 13 Replies Latest reply: Feb 4, 2012 12:05 PM by léonie RSS
Keith Worsley-Brown Calculating status...
Currently Being Moderated
Feb 3, 2012 4:57 PM

I have some old B&W negatives (35mm film) that I want to convert to positive photos.  I can't see any way to do this in iPhoto so I was wondering if Aperture would give me this capability.  Any advice please?

 

Thanks, Keith

  • Frank Caggiano Level 7 Level 7 (22,745 points)
    Currently Being Moderated
    Feb 3, 2012 5:19 PM (in response to Keith Worsley-Brown)

    The scanner software will actually take care of that even Image Capture will do it.

     

    regards

  • Frank Caggiano Level 7 Level 7 (22,745 points)
    Currently Being Moderated
    Feb 3, 2012 5:36 PM (in response to Keith Worsley-Brown)

    Aren't you going to scan in the negatives? If not how are you getting them onto the system?

     

    If you're scanning them in the software that does the scanning will convert the negatives to positive images.

     

    Image Capture is an application included with OS X which can do scanning as well as camera import and a few other things. My point was that even the built-in software will do the conversion so any scanner software that you might be using should do it also. Of course you could just use Image Capture to do the scan.

     

    regards

  • Frank Caggiano Level 7 Level 7 (22,745 points)
    Currently Being Moderated
    Feb 3, 2012 6:06 PM (in response to Keith Worsley-Brown)

    Then you have a bit of a problem, that is not a normal function of Aperture. It's possible by using the curves adjustment to 'flip' an image.

     

    I gather you don't have Aperture yet. You could download the 30 day trail and see what it does for you.  Also googleing converting B&W negatives to positives turned up a few ideas. In fact this link Film conversion I found on the front page of the Extend-a-slide site. They use the curve adjustment in what looks like PS (didn't read the whole article.)

     

    Anyway if you're only reason for getting Aperture is to do this I'd look hard at other solutions. But if you also want all the other things that Aperture does well (image management comes to mind in your case) it could be worthwhile.

     

     

    good luck

     

    regards

  • léonie Level 8 Level 8 (46,350 points)
    Currently Being Moderated
    Feb 3, 2012 10:57 PM (in response to Keith Worsley-Brown)

    Hello Keith,

    since your negatives are Black-and-White, a simple Automator Workflow may suffice to do the ground work of the negative-positive conversion.

     

    • Open Automator and select New -> Workflow
    • Set the Workflow to receive images in "Finder.app"
    • Add an Copy Finder Items action, disclose the triangle and edit the folder to save the converted images to
    • Add an "Apply Quartz Composition Filter to Image", set the selector to "Color Invert", Luminance
    • Add an "Apply Quartz Composition Filter to Image", set the selector to "Black and White"
    • Save the workflow and select a name.
    • Select an image in the Finder for a trial run. Press the "Run" button. The service should install itself automatically in your User Library in the "Services" folder.

    negativePositiveService.png

    Here is a sample run: The negative

    NegativeBW.png

    The convertes Reasult:

    NegativeBW copy.png

    I put the workflow here as a compressed zip file to download http://dreschler-fischer.de/scripts/BWNegative.workflow.zip

     

    Regards

    Léonie

     

    P.S. If the quartz composition action should not be available in Automator, you may need to install Xcode from the AppStore.

  • léonie Level 8 Level 8 (46,350 points)
    Currently Being Moderated
    Feb 4, 2012 9:42 AM (in response to Keith Worsley-Brown)

    You are welcome, Keith.

     

    My pleasure.

     

    Léonie

  • Frank Caggiano Level 7 Level 7 (22,745 points)
    Currently Being Moderated
    Feb 4, 2012 9:50 AM (in response to léonie)

    Does the quartz B&W filter really convert a negative image to a positive? I would have thought it only did a B&W convert on a color image.

     

    (just notice you did a color invert before the B&W, hmm still seems like somehting is missing)

  • léonie Level 8 Level 8 (46,350 points)
    Currently Being Moderated
    Feb 4, 2012 9:56 AM (in response to Frank Caggiano)

    I would have thought it only did a B&W convert on a color image.

    That is exactly what it does.

     

    The Action before that (Quartz Composition Filter) creates the negative: 

    • "Apply Quartz Composition Filter to Image", set the selector to "Color Invert" on the Luminance channel

    Cheers

    Léonie

     

    P.S. But it is a simple linear inversion, so Keith probably will still have to do some tweaking with the "curves" in Aperture to make it perfect.

  • léonie Level 8 Level 8 (46,350 points)
    Currently Being Moderated
    Feb 4, 2012 12:05 PM (in response to Keith Worsley-Brown)

    Hello Keith,

    You, and possibly other readers, may be interested to know that I have managed to do what I want using the channel invert filter in Final Cut Express.  It involves quite a lot of steps, including taking a screen shot which is of a low quality, but it has given me a positive from my negatives.

    Well, that certainly is a very resourceful and ingenious approach!

    Great, if it works for you, and thank you for letting us know.

     

    Cheers

    Léonie

Actions

More Like This

  • Retrieving data ...

Bookmarked By (1)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.