Is there a.....

crabbyman

Senior member
Jul 24, 2002
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Is there a software or plug-in that will make it so a color negative will turn into the color equivalent? Photoshop doesnt have anything that does software rendering of negatives? My scanner is just a regular scanner and doesnt feature any negative attachments or settings. Thanks in advance for any help!
 

ElDonAntonio

Senior member
Aug 4, 2001
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I really don't know a lot about photography, but what is involved in turning a negative into a positive? if it's just flipping the colors, you have an invert command in Photoshop, although I doubt it's that simple.
 

crabbyman

Senior member
Jul 24, 2002
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Yeah..at first I thought that it would be that easy too...but it is not. Since there is an orange cast on the negative the invert ends up being baby blue. I have tried a couple of methods people have said of turning negatives to positives but none work. I figured someone in here uses Photoshop or some program that has plug-ins or knew how.
 

Yomicron

Golden Member
Mar 5, 2002
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I hope this is what you need:


taken from here
The basic method in photoshop to convert a scan of a negative to a positive is: (1) Sample the orange mask of the negative (i.e., use the eye dropper to grab the color of the mask from the very edge of the film where it did not get exposed), (2) Make a new layer with the color of the orange mask (i.e., after you make a new layer, select all and use the paint can with the sampled color of the mask) (3) Invert the color of this new layer and then subtract this layer from the layer with the negative; (4) Split and equalize each of the color channels separately, (4) Merge channels and then invert the negative to a positive. Really only takes a short time after you do it once. You need to get the mask color for each type of film, but once you do one image of a given type of film you can store the steps as an action that takes only a few seconds.
 

crabbyman

Senior member
Jul 24, 2002
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See I tried that. One thing is...how do you "subtract this layer from the negative layer"? There isnt an option that I see to do so. I even checked the "search" feature on it. I saw that same exact website and read and tried all of the methods listed there.

Thanks for the help though..


Any experienced Photoshopers?!? :frown:
 

ElDonAntonio

Senior member
Aug 4, 2001
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I tried that method and I get pretty bad results. About the same thing as doing an Auto levels on the inverted image. Or maybe I did something wrong...

To substract the layer from the other, I just selected Difference as the blending mode.
 

crabbyman

Senior member
Jul 24, 2002
529
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BTW..you can post your "findings" and I will see what happens when I play with them...