Re: [Gimp-user] Rescuing old color negatives

[Kevin Cozens <kevin ve3syb ca>]

On 2021-04-19 7:24 a.m., William wrote:
> I tried the invert function and it is not doing what I want to do.
>
> I want to rescue old color negative 35mm film strips by inverting them to a color positive that I can print 
> on a color laser printer.
>
> The negatives have an orange cast which inverts to monochrome blue.
Restoring old negatives involves more than just a colour inversion. The 
colour balance is likely to be off. I have 400 colour slides to scan and 
restore that date back to the last 60s to mid-70's. I know the colour 
balance is off as the red has faded over time. I don't yet know about any 
changes in brightness and contrast.

One other (non-GIMP) approach to fixing slides that you may be able to adapt 
to negatives by adding a colour inversion step can be found at:
  http://www.lionhouse.plus.com/

I haven't tried it yet but I'm thinking about it. It was mentioned in this 
mailing list some time ago.

--
Cheers!

Kevin.

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